| Canopen Alarm code | MDI COD E | CAN COD E | ALARM | explanation | Troubleshooting |
| 0x0000 | 94 | 0 | NONE | NONE | NONE |
| 0x6010 | 8 | 8 | WATCHDOG | This is a safety related test. It is a self-diagnosis test that involves the logic between master and supervisor microcontrollers. | This alarm could be caused by a CAN bus malfunctioning, which blinds master-supervisor communication. |
| 0xFF11 | 17 | 17 | LOGIC FAILURE #3 | A hardware problem in the logic board due to high currents (overload). An overcurrent condition is triggered even if the power bridge is not driven. | The failure lies in the controller hardware. Replace the controller |
| 0xFF12 | 18 | 18 | LOGIC FAILURE #2 | Fault in the hardware section of the logic board which deals with voltage feedbacks of motor phases. | The failure lies in the controller hardware. Replace the controller. |
| 0x5114 | 19 | 19 | LOGIC FAILURE #1 | This fault is displayed when the controller detects an undervoltage condition at the KEY input. Undervoltage threshold depends on the nominal voltage of the controller | 1-Fault can be caused by a key input signal characterized by pulses below the undervoltage threshold, possibly due to external loads like DC/DC converters starting-up, relays or contactors during switching periods, solenoids energizing or de-energizing. Consider to remove such loads. 2-If no voltage transient is detected on the supply line and the alarm is present every time the key switches on, the failure probably lies in the controller hardware. Replace the logic board. 3-If the alarm occurs during motor acceleration or when there is a hydraulic- related request, check the battery charge, the battery health and power-cable connections. |
| 0xFF1C | 28 | 28 | PUMP VMN LOW | The pump motor output is lower than expected, considering the PWM duty cycle applied. | A) If the problem occurs at start up (the LC does not close at all), check: - Motor internal connections; - Motor power cables connections; - If the motor connection are OK, the problem is inside the controller. B) If the problem occurs after closing the LC (the LC closes and then opens back again), check: - Motor internal connections; - If motor windings/cables have leakages towards truck frame; - If no problem are found on the motors, the problem is inside the controller. C) If the alarm occurs during motor running, check: - Motor internal connections; - If motor windings/cables have leakages towards truck frame; - That the LC power contact closer properly, with a good contact; - If no problem are found on the motors, the problem is inside the controller, it is necessary to replace the logic board. |
| 0xFF1D | 29 | 29 | PUMP VMN HIGH | This test is carried out when the pump motor is turning (PWM applied). The pump motor output is higher than expected, considering the PWM applied. | -Motor internal connections -If motor windings/cables have leakages towards truck frame -If no problem are found on the motors, the problem is inside the -controller, it is necessary to replace the logic board. |
| 0x3120 | 30 | 30 | VMN LOW | Start-up test. Before switching the LC on, the software checks the power bridge: it turns on alternatively the high-side power MOSFETs and expects the phase voltages increase toward the positive rail value. If one phase voltage is lower than a certain percentage of the rail voltage, this alarm occurs. Motor running test. When the motor is running, the power bridge is on and the motor voltage feedback tested; if it is lower than expected value (a range of values is considered), the controller enters in fault state. | If the problem occurs at start up (the LC does not close at all), check: - motor internal connections (ohmic continuity); - motor power-cables connections; - if the motor connections are OK, the problem is inside the controller; replace it. If the alarm occurs while the motor is running, check: - motor connections; - that the LC power contact closes properly, with a good contact; - if no problem is found, the problem is inside the controller. Replace it. |
| 0x3110 | 31 | 31 | VMN HIGH | Before switching the LC on, the software checks the power bridge: it turns on alternatively the low-side power MOSFETs and expects the phase voltages decrease down to -B. If the phase voltages are higher than a certain percentage of the nominal battery voltage, this alarm occurs. This alarm may also occur when the start-up diagnosis has succeeded and so the LC has been closed. In this condition, the phase voltages are expected to be lower than half the battery voltage. If one of them is higher than that value, this alarm occurs. | A）If the problem occurs at start-up (the LC does not close), check: - motor internal connections (ohmic continuity); - motor power cables connections; - if the motor connections are OK, the problem is inside the controller. Replace it. B) If the alarm occurs while the motor is running, check: - motor connections; - that the LC power contact closes properly, with a good contact; - if no problem is found, the problem is inside the controller. Replace it. |
| 0x5442 | 37 | 37 | CONTACTOR CLOSED | Before driving the LC coil, the controller checks if the contactor is stuck. The controller drives the power bridge for several dozens of milliseconds, trying to discharge the capacitors bank. If the capacitor voltage does not decrease by more than a certain percentage of the key voltage, the alarm is raised. | It is suggested to verify the power contacts of LC; if they are stuck, is necessary to replace the LC. |
| 0x5441 | 38 | 38 | CONTACTOR OPEN | The LC coil is driven by the controller, but it seems that the power contacts do not close. In order to detect this condition the controller injects a DC current into the motor and checks the voltage on power capacitor. If the power capacitors get discharged it means that the main contactor is open. | LC contacts are not working. Replace the LC. |
| 0x2312 | 52 | 52 | PUMP I=0 EVER | While the pump motor is running, the current feedback is constantly stuck to zero. | 1-Check the motor connection, that there is continuity. If the motor connection is opened, the current cannot flow, so the test fails and the error code is displayed; 2-If everything is ok for what it concerns the motor, the problem could be in the current sensor or in the related circuit. |
| 0x2311 | 53 | 53 | STBY I HIGH | In standby, the sensor detects a current value different from zero. | The current sensor or the current feedback circuit is damaged. Replace the controller. |
| 0x3130 | 60 | 60 | CAPACITOR CHARGE | When the key is switched on, the inverter tries to charge the power capacitors through the series of a PTC and a power resistance, checking if the capacitors are charged within a certain timeout. If the capacitor voltage results less than a certain percentage of the nominal battery voltage, the alarm is raised and the main contactor is not closed. | 1-Check if an external load in parallel to the capacitor bank, which sinks current from the capacitors-charging circuit, thus preventing the caps from charging well. Check if a lamp or a dc/dc converter or an auxiliary load is placed in parallel to the capacitor bank. 2- The charging resistance or PTC may be broken. Insert a power resistance across line-contactor power terminals; if the alarm disappears, it means that the charging resistance is damaged. 3- The charging circuit has a failure or there is a problem in the power section. Replace the controller. |
| 0x4210 | 62 | 62 | TH. PROTECTION | The temperature of the controller base plate is above 85 °C. The maximum current is proportionally decreased with the temperature excess from 85 °C up to 105 °C. At 105 °C the current is limited to 0 A. | It is necessary to improve the controller cooling. To realize an adequate cooling in case of finned heat sink important factors are the air flux and the cooling-air temperature. If the thermal dissipation is realized by applying the controller base plate onto the truck frame, the important factors are the thickness of the frame and the planarity and roughness of its surface. If the alarm occurs when the controller is cold, the possible reasons are a thermal-sensor failure or a failure in the logic board. In the last case, it is necessary to replace the controller. |
| 0x4110 | 65 | 65 | MOTOR TEMPERAT. | This warning occurs when the temperature sensor is open (if digital) or if it has overtaken the MAX. MOTOR TEMP. threshold (if analog) (see paragraph 8.2.3). | 1- Check the temperature read by the thermal sensor inside the motor through the MOTOR TEMPERATURE reading in the TESTER function. 2- Check the sensor ohmic value and the sensor wiring. 3- If the sensor is OK, improve the cooling of the motor. 4- If the warning is present when the motor is cool, replace the controller. |
| 0xFF42 | 0 | 66 | BATTERY LOW | Parameter BATTERY CHECK is other than 0 (SET OPTION) and battery charge is evaluated to be lower than BATT.LOW TRESHLD (ADJUSTMENTS). | 1- Check the battery charge and charge it if necessary 2- If the battery is actually charged, measure the battery voltage through a voltmeter and compare it with the BATTERY VOLTAGE reading in the TESTER function. If they are different, adjust the ADJUST BATTERY parameter (ADJUSTMENTS list) with the value measured through the voltmeter. 3- If the problem is not solved, replace the logic board. |
| 0x3211 | 74 | 74 | DRIVER SHORTED | The driver of the LC coil is shorted. | 1- Check if there is a short or a low impedance pull-down between NMC (A12) and -B. 2- The driver circuit is damaged; replace the logic board. 3-the SET POSITIVE PEB parameter is not correct |
| 0x3221 | 75 | 75 | CONTACTOR DRIVER | The LC coil driver is not able to drive the load. The device itself or its driver circuit is damaged. | This type of fault is not related to external components; replace the logic board. |
| 0xFF4E | 78 | 78 | VACC NOT OK | At key-on and immediately after that, the travel demands have been turned off. This alarm occurs if the ACCELERATOR reading (in TESTER function) is above the minimum value acquired during the PROGRAM VACC procedure. | 1- Check the wirings. 2- Check the mechanical calibration and the functionality of the accelerator potentiometer. 3- Acquire the maximum and minimum potentiometer value through the PROGRAM VACC function. 4- If the problem is not solved, replace the logic board. |
| 0xFF4F | 79 | 79 | INCORRECT START | Incorrect starting sequence. Possible reasons for this alarm are: 1- A travel demand active at key-on. 2- Man-presence sensor active at key on. | 1- Check wirings. 2- Check microswitches for failures. 3- Through the TESTER function, check the states of the inputs are coherent with microswitches states. 4- If the problem is not solved, replace the logic board. |
| 0xFF50 | 80 | 80 | FORW + BACK | This alarm occurs when both the travel requests (FW and BW) are active at the same time. | 1- Check that travel requests are not active at the same time. 2- Check the FW and BW input states through the TESTER function. 3- Check the wirings relative to the FW and BW inputs. 4- Check if there are failures in the microswitches. 5- If the problem is not solved, replace the logic board. |
| 0xFF52 | 82 | 82 | ENCODER ERROR | This fault occurs when the frequency supplied to the motor is higher than 30 Hz and the signal feedback from the encoder has a too high jump in few tens of milliseconds. This condition is related to an encoder failure. | 1- Check the electrical and the mechanical functionality of the encoder and the wires crimping. 2- Check the mechanical installation of the encoder, if the encoder slips inside its housing it will raise this alarm. 3- Also the electromagnetic noise on the sensor can be the cause for the alarm. In these cases try to replace the encoder. 4- If the problem is still present after replacing the encoder, the failure is in the controller |
| 0xFF56 | 86 | 86 | PEDAL WIRE KO | - | - |
| 0xFF87 | 0 | 126 | CHAIN SENSOR KO | the slack chain sensor is not in normal status | 1- Check that chain sensor switchs are not active. 2- Check the wirings relative to the chain sensor switchs. 3- Check if there are failures in the microswitches. 4- If the problem is not solved, replace the logic board. |
| 0xFF39 | 90 | 127 | NO STEER CANMSG | - | - |
| 0xFF97 | 84 | 128 | POT MISMATCH | - | - |
| 0xFF33 | 83 | 129 | WRONG CONFIG | wrong set of controller type and model type | 1-check the parameter controller type in "sepcial adjustment" menu 2-check the parameter model type in "special adjustment" menu |
| 0xFF89 | 0 | 130 | REACH OUT OF RNG | reach pot out of the normal range | 1-do the teaching again 2-check the wiring of the reach pot |
| 0xFF90 | 0 | 131 | VACC REACH NOTOK | the output of reacht pot is present,but the enable switch is not active | 1-check the reach pot 2-check the wiring |
| 0xFF91 | 0 | 132 | ALL ACQU. REACH | do the wrong way of reach pot teaching | do the teaching in correct way |
| 0xFF92 | 0 | 133 | TLT OUT OF RANGE TILT OUT OF RNG | tilt pot out of the normal range | 1-do the teaching again 2-check the wiring of the tilt pot |
| 0xFF93 | 0 | 134 | VACC TILT NOT OK | the output of tilt pot is present,but the enable switch is not active | 1-check the tilt pot 2-check the wiring |
| 0xFF94 | 0 | 135 | SFT OUT OF RANGE SHIFT OUT OF RNG | sideshift pot out of the normal range | 1-do the teaching again 2-check the wiring of the sideshift pot |
| 0xFF95 | 0 | 136 | VACC SHFT NOT OK | the output of sideshift pot is present,but the enable switch is not active | 1-check the sideshift pot 2-check the wiring |
| 0xFF96 | 0 | 137 | ALL ACQU. TILT | do the wrong way of tilt pot teaching | do the teaching in correct way |
| 0xFF97 | 0 | 138 | ALL ACQU. SHIFT | do the wrong way of sideshift pot teaching | do the teaching in correct way |
| 0xFF76 | 51 | 139 | NO CAN TILL EP NO CAN TILLER EP | the controller lost the communication with EP tiller at least once,when the truck is using | 1-check the wiring of can cable 2-try to replace the EP tiller 3-replace the controller |
| 0xFF75 | 52 | 140 | WAIT TILL EP WAIT TILLER EP | wait the EP tiller CAN-BUS communication when key- on | 1-check the wiring of can cable 2-try to replace the EP tiller 3-replace the controller |
| 0xFF86 | 22 | 141 | NO CAN BRAKE EP | if set the PEDAL BRK TYPE is optio#1,but the controller can't get the can message from brake,the alarm occurs | 1-check the wiring of can-brake 2-check if the can-brake is broken 3-try to set the PEDAL BRK TYPE=NONE |
| 0xFF85 | 52 | 142 | WAIT ACTIVATION | if downlaod a SW with activation function,but haven't do any activation before,the alarm occrus | do activation with EP TOOLS |
| 0xFF84 | 55 | 143 | WRONG PASSWORD | if the EP PASSWORD function is active but haven't enter the correct password,the alarm occurs | 1-enter the correct password 2-disable the password function |
| 0xFF82 | 51 | 144 | NO CAN DISP EP | When the truck is running, if the DISPLAY TYPE=5,but the controller lose the communication with EP DISPLAY,this alarm occurs | 1-check the communication wiring between EP DISPLAY and controller 2-check if the EP DISPLAY is broken |
| 0xFF83 | 50 | 145 | WAIT DISP EP | if the DISPLAY TYPE=5,but the controller can't get message from EP DISPLAY when the truck start,this alarm occurs | 1-check the communication wiring between EP DISPLAY and controller 2-check if the EP DISPLAY is broken 3-try to set the DISPLAY TYPE into a correct value |
| 0xFF80 | 80 | 146 | RENTAL TIMEOUT | if the rental function is actived,but the rental enable time is run out,this alarm occurs | 1-check the rental hour left in TESTER menu 2-use EP TOOLS to disable the rental function |
| 0xFF70 | 55 | 147 | NO CAN BMS EP | if the communication between BMS and controller is out of time,this alarm occurs | 1-check the communication wiring between BMS and controller 2-there's a fault on BMS can device,repalce the BMS |
| 0xFF71 | 56 | 148 | EP BMS MC OPEN | if the battery charge level is to low,the BMS require the main contactor open,this alarm occurs | 1-check the battery charge level 2-check if the battery is ok 3-replace the BMS |
| 0xFF74 | 59 | 149 | EP BMS TRAC CTB | if the battery charge level is to low,the BMS require the controller to reduce the traction speed,this alarm occurs | 1-check the battery charge level 2-check if the battery is ok 3-replace the BMS |
| 0xFF73 | 58 | 150 | EP BMS LIFT STOP | if the battery charge level is to low,the BMS require the controller to stop the lift function,this alarm occurs | 1-check the battery charge level 2-check if the battery is ok 3-replace the BMS |
| 0xFF72 | 57 | 151 | EP BMS TRAC STOP | if the battery charge level is to low,the BMS require the controller to stop the traction function,this alarm occurs | 1-check the battery charge level 2-check if the battery is ok 3-replace the BMS |
| 0xFF98 | 82 | 152 | SENSOR SUPPLY XX | | |
| 0xFF99 | 3 | 153 | OFFSET SPD.SENS. | It is necessary to acquire the offset angle between the stator and the speed sensor, i.e. they mutual angular misalignment. An automatic function is dedicated to this procedure. | Perform the teaching procedure: in OPTIONS, select ABS SENS. ACQUIRE. |
| 0xFF9A | 3 | 154 | SIXSTEP ERROR | - | - |
| 0xFF9B | 45 | 155 | WAIT MOTOR STILL | The controller is waiting for the motor to stop rotating. This warning can only appear in controllers for brushless motors. | - |
| 0xFF9C | 23 | 156 | REMA T. ALARM | - | - |
| 0xFF9D | 4 | 157 | FAULT DRV.POWER | - | - |
| 0xFF9E | 4 | 158 | NOT RDY DRV.POW. | - | - |
| 0xFF9F | 5 | 159 | HVIL FAIL | - | - |
| 0xFFA0 | 0 | 160 | SENS BAT TEMP KO | - | - |
| 0xFFA1 | 0 | 161 | RPM HIGH | This alarm occurs in Gen. Set versions when the speed exceeds the threshold speed. | - |
| 0xFFA2 | 0 | 162 | BUMPER STOP | - | - |
| 0xFFA3 | 7 | 163 | ED SLIP MISMATCH | - | - |
| 0xFFA4 | 6 | 164 | PWM ACQ. ERROR | - | - |
| 0xFFA5 | 5 | 165 | SHORT CIRCUIT KO | only ACE4 | - |
| 0xFFA6 | 5 | 166 | SHORT CIRCUIT | only ACE4 | - |
| 0xFFA7 | 4 | 167 | IMS ERROR | only ACE4 | - |
| 0xFFA8 | 3 | 168 | SIN/COS D.ERR XX | - | - |
| 0xFFA9 | 3 | 169 | ENCODER D.ERR XX | - | - |
| 0x3101 | 41 | 170 | WRONG KEY VOLT. | The measured key voltage is not the right one for the inverter. | 1- Check if the SET KEY VOLTAGE parameter in the ADJUSTMENTS list is set in accordance with the key voltage. 2- Check if the key voltage is ok using a voltmeter, if not check the wiring. 3- In case the problem is not solved, replace the logic board. |
| 0xFFAB | 2 | 171 | ACQUIRING A.S. | - | - |
| 0xFFAC | 2 | 172 | ACQUIRE ABORT | - | - |
| 0xFFAD | 2 | 173 | ACQUIRE END | - | - |
| 0xFFAF | 81 | 175 | SPEED FB. ERROR | - | - |
| 0xFFB0 | 3 | 176 | HOME SENS.ERR XX | - | - |
| 0xFFB1 | 76 | 177 | COIL SHOR. EB. | This alarm occurs when an overload of the EB driver occurs. | 1- Check the connections between the controller outputs and the loads. 2- Collect information about characteristics of the coil connected to the driver and ask for assistance to a EP technician in order to verify that the maximum current that can be supplied by the hardware is not exceeded. 3- In case no failures/problems have been found, the problem is in the controller, which has to be replaced. |
| 0xFFB2 | 65 | 178 | MOTOR TEMP. STOP | The temperature sensor has overtaken the threshold defined by STOP MOTOR TEMP. | 1- Check the temperature read by the thermal sensor inside the motor through the MOTOR TEMPERATURE reading in the TESTER function. 2- Check the sensor ohmic value and the sensor wiring. 3- If the sensor is OK, improve the cooling of the motor. 4- If the warning is present when the motor is cool, replace the controller. |
| 0xFFB3 | 95 | 179 | STEER SENSOR KO | The voltage read by the microcontroller at the steering-sensor input is not within the STEER RIGHT VOLT ÷ STEER LEFT VOLT range, programmed through the STEER ACQUIRING function | 1- Acquire the maximum and minimum values coming from the steering potentiometer through the STEER ACQUIRING function. If the alarm is still present, check the mechanical calibration and the functionality of the potentiometer. 2- If the problem is not solved, replace the logic board. |
| 0xFFB4 | 57 | 180 | OVERLOAD | The motor current has overcome the limit fixed by hardware. | If the alarm condition occurs again, ask for assistance to a EP technician. The fault condition could be affected by wrong adjustments of motor parameters. |
| 0xFF51 | 83 | 181 | WRONG ENC SET | Mismatch between parameters ENCODER PULSES 1 and ENCODER PULSES 2 | Set the two parameters with the same value, according to the adopted encoder |
| 0x50F2 | 10 | 182 | EVP2 COIL OPEN | No load is connected between the EVP2 output and the electrovalve positive terminal. | 1- Check the EVP2 condition. 2- Check the EVP2 wiring. 3- If the problem is not solved, replace the logic board. |
| 0x50F3 | 10 | 183 | EVP2 DRIV. SHORT | 1- The EVP2 driver is shorted. 2- The microcontroller detects a mismatch between the valve set-point and the feedback of the EVP2 output. | 1- Check if there is a short circuit or a low-impedance conduction path between the negative of the coil and -B. 2- Collect information about: o the voltage applied across the EVP2 coil, o the current in the coil, o features of the coil. Ask for assistance to EP in order to verify that the software diagnoses are in accordance with the type of coil employed. 3- If the problem is not solved, it could be necessary to replace the controller. |
| 0xFFB8 | 10 | 184 | EVP2 DRIVER OPEN | The EVP2 driver is not able to drive the EVP2 coil. The device itself or its driving circuit is damaged. | This fault is not related to external components. Replace the logic board. |
| 0xFFB9 | 64 | 185 | TILLER ERROR | - | - |
| 0xFFBA | 45 | 186 | WAIT MOT.P STILL | If DC Pump option is set to ON, the software expects the voltage on -P output to be at a “steady state” value, before switching the LC on. If the voltage is different, it could be due to the fact that the motor connected to -P is not still. For this reason, the software waits 30 seconds for the voltage to be at the “steady state” value (and for the pump motor to be still). After this time, the software assumes that the problem is not due to the fact that the pump motor is not still, and show the PUMP VMN NOT OK alarm. | 1- If the motor connected to -P is still moving, just wait for it to be still. 2- If not, in 30 seconds the alarm PUMP VMN NOT OK will appear. |
| 0xFFBB | 49 | 187 | MANY PUMP REQ. | if there's more than one pump function request,e.g. lift+tilt,the alarm occrus | 1-check the microswitches status 2-check the wiring of pump functions 3-disconnect the wire on the controller side 4-If the problem is not solved, replace the logic board. |
| 0xFFBC | 50 | 188 | PUMP VACC NOT OK | The minimum voltage of the lift potentiometer is not correctly set. | 1-It is suggested to repeat the acquiring procedure of MIN LIFT and MAX LIFT 2-check the wiring of the lift pot 3-check if it's the lift pot fault |
| 0xFFBD | 79 | 189 | PUMP INC START | Man-presence switch is not enabled at pump request | 1- Check wirings. 2- Check microswitches for failures. 3- Through the TESTER function, check the states of the inputs are coherent with microswitches states. 4- If the problem is not solved, replace the logic board. |
| 0xFFBE | 33 | 190 | PUMP VMN NOT OK | Switching the LC on, the software checks the output voltage on -P connector, and expects that it is at a “steady state” value (if DC PUMP option is set to ON, see HYDRO SETTINGS). If the voltage is too low, this alarm occurs. | 1- The motor connected to -P must be completely still before this alarm occurs. The software waits 30 seconds before showing this alarm. During this time it shows the WAIT MOTOR STILL warning. 2- Motor internal connections 3- Motor power cables connections 4- Motor leakage to truck frame 5- If the motor connections are ok, the problem is inside the controller it is necessary to replace the logic board. |
| 0xFFBF | 56 | 191 | PUMP I NO ZERO | In standby condition (pump motor not driven), the feedback coming from the current sensor in the pump chopper gives a value out of a permitted range, because the pump current is not zero. | This type of fault is not related to external components; replace the controller. |
| 0xFFC0 | 90 | 192 | PUMP VACC RANGE | for COMBIAC0 and COMBIACX，it means the output of lift pot is out of the normal range | |
| 0x3302 | 69 | 193 | SMARTDRIVER KO | There is a hardware problem in the smart driver circuit . The driver is set to be ON but the output voltage does not increase | 1- Verify that the EB coil is connected correctly between pin A2 and pin A4. 2- Verify that the parameter POSITIVE E.B.is set in accordance with the actual configuration (see paragraph 8.2.5). The software, in fact, depending on specific parameter value, makes a proper diagnosis; a wrong configuration of this parameter could generate a false fault. 3- In case no failures/problems have been found, the problem is in the controller, which has to be replaced. |
| 0x5001 | 27 | 194 | AUX BATT. SHORT. | For the versions where the smart driver is not installed (36/48V and 80V), it is possible to decide where the positive supply for pin A2 comes from by choosing a dedicated hardware configuration. The parameter POSITIVE E.B. has to be set in accordance with the hardware configuration, because the software makes a proper diagnosis depending on the parameter; a wrong setting could generate a false fault. The available choices are: - 0 = PEB is managed by the smart driver (available for 24V version only). - 1 = PEB comes from the TILLER input (A1). - 2 = PEB comes from PEV (A3). PEV must be connected to terminal +B of the controller. This is the default configuration for 36/48V and 80V version. This alarm can only appear if POSITIVE E.B. is set as 1 TILLER/SEAT. | 1- Verify that the parameter POSITIVE E.B. is set in accordance with the actual coil positive supply (see paragraph 8.2.5). 2- In case no failures/problems have been found, the problem is in the controller, which has to be replaced. |
| 0x3223 | 84 | 195 | POS. EB. SHORTED | The voltage on pin A2 is high even if the smart driver is turned OFF | 1- Verify that the parameter POSITIVE E.B. is set in accordance with the actual coil positive supply 2- Check if there is a short or a low impedance path between pin A2 and of the +B. In case no failures/problems have been found, the problem is in the controller, which has to be replaced. |
| 0xFFC4 | 47 | 196 | MOT.PHASE SH. | Short circuit between two motor phases. The hexadecimal value “XX” identifies the shorted phases: 36: U – V short circuit 37: U – W short circuit 38: V – W short circuit | 1- Verify the motor phases connection on the motor side. 2- Verify the motor phases connection on the inverter side. 3- Check the motor power cables. 4- Replace the controller. 5- If the alarm does not disappear, the problem is in the motor. Replace it. |
| 0xFFC5 | 91 | 197 | WRONG SLAVE VER. | Wrong software version on supervisor uC. | Upload the correct software version |
| 0xFFC6 | 97 | 198 | M/S PAR CHK MISM | At start-up there is a mismatch in the parameter checksum between the master and the supervisor microcontrollers. | Restore and save again the parameters list. |
| 0xFFC7 | 93 | 199 | PARAM TRANSFER | Master uC is transferring parameters to the supervisor. | Wait until the end of the procedure. If the alarm remains longer, re-cycle the key. |
| 0xFFC8 | 88 | 200 | VDC OFF SHORTED | The logic board measures a voltage value across the DC-link that is constantly out of range, above the maximum allowed value | 1- Check that the battery has the same nominal voltage of the inverter. 2- Check the battery voltage, if it is out of range replace the battery. 3- If the battery voltage is ok, replace the logic board. |
| 0xFFC9 | 98 | 201 | TORQUE PROFILE | There is an error in the choice of the torque profile parameters. | Check in the HARDWARE SETTINGS list the value of those parameters. |
| 0xFFCA | 77 | 202 | VDC LINK OVERV. | This fault is displayed when the controller detects an overvoltage condition. Overvoltage threshold depends on the nominal voltage of the controller. Nominal voltage 24V 36/48V 72/80V 96V Overvoltage threshold 35V 65V 115V 130V As soon as the fault occurs, power bridge and MC are opened. The condition is triggered using the same HW interrupt used for undervoltage detection, uC discerns between the two evaluating the voltage present across DC-link capacitors: - High voltage Overvoltage condition - Low/normal voltage Undervoltage condition | If the alarm happens during the brake release, check the line contactor contact and the battery power-cable connection. |
| 0xFFCB | 32 | 203 | HW FAULT MC | the Mcu and the Scu check the status of the main contactor is different from each other. | This type of fault is related to internal components. Replace the logic board. |
| 0xFFCC | 63 | 204 | BRAKE RUN OUT | The CPOT BRAKE input read by the microcontroller is out of the range defined by parameters SET PBRK. MIN and SET PBRK. MAX | 1- Check the mechanical calibration and the functionality of the brake potentiometer. 2- Acquire the minimum and maximum potentiometer values. 3- If the alarm is still present, replace the logic board. |
| 0xFFCD | 70 | 205 | EPS RELAY OPEN | The controller receives from EPS information about the safety contacts being open. | Verify the EPS functionality |
| 0x3111 | 31 | 206 | INIT VMN HIGH | Before closing the LC, the software checks the power- bridge voltage without driving it. The software expects the voltage to be in a “steady state” value. If it is too high, this alarm occurs. The hexadecimal value “XX” identifies the faulty phase: 81: phase U 82: phase V 83: phase W | 1- Check the motor power cables. 2- Check the impedance between U, V and W terminals and -B terminal of the controller. 3- Check the motor leakage to truck frame. 4- If the motor connections are OK and there are no external low impedance paths, the problem is inside the controller. Replace it. |
| 0x3121 | 30 | 207 | INIT VMN LOW | Before closing the LC, the software checks the power- bridge voltage without driving it. The software expects the voltage to be in a “steady state” value. If it is too low, this alarm occurs. The hexadecimal value “XX” identifies the faulty phase: 01: phase U 02: phase V 03: phase W | 1- Check the motor power cables. 2- Check the impedance between U, V and W terminals and -B terminal of the controller. 3- Check the motor leakage to truck frame. 4- If the motor connections are OK and there are no external low impedance paths, the problem is inside the controller. Replace it. |
| 0x3610 | 13 | 208 | EEPROM KO | the connection of the EEPROM is not ok | This type of fault is related to internal components. Replace the logic board. |
| 0x0000 | 14 | 209 | PARAM RESTORE | The controller has restored the default settings. If a CLEAR EEPROM has been made before the last key re- cycle, this warning informs you that EEPROM was correctly cleared. | 1- A travel demand or a pump request does cancel the alarm. 2- If the alarm appears at key-on without any CLEAR EEPROM performed, replace the controller. |
| 0xFFD2 | 71 | 210 | WRONG RAM MEM. | The algorithm implemented to check the main RAM registers finds wrong contents: the register is “dirty”. This alarm inhibits the machine operations. | Try to switch the key off and then on again, if the alarm is still present replace the logic board. |
| 0xFFD3 | 11 | 211 | STALL ROTOR | The traction rotor is stuck or the encoder signal is not correctly received by the controller | 1- Check the encoder condition. 2- Check the wiring. 3- Through the TESTER function, check if the sign of FREQUENCY and ENCODER are the same and if they are different from zero during a traction request. 4- If the problem is not solved, replace the logic board. |
| 0xFFD4 | 39 | 212 | POWER MISMATCH | The error between the power setpoint and the estimated power is out of range. | Ask for assistance to a EP technician about the correct adjustment of the motor parameters. |
| 0xFFD5 | 35 | 213 | POSITIVE LC OPEN | The positive voltage of LC is different from expected. | 1- Verify LC coil is properly connected. 2- Verify CONF. POSITIVE LC parameter is set in accordance with the actual coil positive supply (see paragraph 8.2.5). Software, depending on the parameter value, makes a proper diagnosis; a mismatch between the hardware and the parameter configuration could generate a false fault. 3- In case no failures/problems have been found, the problem is in the controller, which has to be replaced. |
| 0x5002 | 9 | 214 | EVP COIL OPEN | No load is connected between the EVP output (A24) and the electrovalve positive terminal. | 1- Check the EVP condition. 2- Check the EVP wiring. 3- If the problem is not solved, replace the logic board. |
| 0x5003 | 9 | 215 | EVP DRIV. SHORT. | 1- The EVP driver (output A24) is shorted. 2- The microcontroller detects a mismatch between the valve set-point and the feedback of the EVP output. | 1- Check if there is a short circuit or a low-impedance conduction path between the negative of the coil and -B. 2- Collect information about: o the voltage applied across the EVP coil, o the current in the coil, o features of the coil. Ask for assistance to EP in order to verify that the software diagnoses are in accordance with the type of coil employed. If the problem is not solved, it could be necessary to replace the controller. |
| 0xFFD8 | 43 | 216 | EB. COIL OPEN | This fault appears when no load is connected between the NEB output (A4) and the EB positive terminal PEB (A2). | 1- Check the EB coil. 2- Check the wiring. 3- If the problem is not solved, replace the logic board. |
| 0xFFDB | 25 | 217 | PEV NOT OK | Terminal PCOM is not connected to the battery or the voltage is different from that defined by parameter SET POSITIVE PEB (see the ADJUSTMENTS list, paragraph 8.2.3). This alarm can occur if output NAUX1 is present (and the related setting is active) or the AUX OUT function is active. | 1- Check PCOM terminal: it must be connected to the battery voltage (after the main contactor). 2- Set the nominal PCOM voltage in parameter SET POSITIVE PEB in ADJUSTMENTS list (see paragraph 8.2.3). |
| 0x4311 | 68 | 218 | SENS MOT TEMP KO | The output of the motor thermal sensor is out of range. | 1- Check if the resistance of the sensor is what expected measuring its resistance. 2- Check the wiring. 3- If the problem is not solved, replace the logic board. |
| 0xFFDB | 73 | 219 | PEB-PEVP NOT OK | only for AC3 and ACE3，thePEB and PEV voltage is not match the parameter setting | 1- Check PCOM terminal: it must be connected to the battery voltage (after the main contactor). 2- Set the nominal PCOM voltage in parameter SET POSITIVE PEB in ADJUSTMENTS list. |
| 0x5101 | 20 | 220 | VKEY OFF SHORTED | At key-on, the logic board measures a voltage value of the KEY input that is constantly out of range, below the minimum allowed value. | 1- Check that the battery has the same nominal voltage of the inverter. 2- Check the battery voltage, if it is out of range replace the battery. 3- If the battery voltage is ok, replace the logic board. |
| 0xFFDD | 46 | 221 | HANDBRAKE | Handbrake input is active. | 1- Check that handbrake is not active by mistake. 2- Check the SR/HB input state through the TESTER function. 3- Check the wirings. 4- Check if there are failures in the microswitches. 5- If the problem is not solved, replace the logic board. |
| 0xFFDE | 15 | 222 | SEAT MISMATCH | This alarm can appear only in a Traction + Pump configuration or in a multimotor one. There is an input mismatch between the traction controller and the pump controller relatively to the TILLER/SEAT input (A1): the two values recorded by the two controllers are different. | 1- Check if there are wrong connections in the external wiring. 2- Using the TESTER function, verify that the seat inputs are in accordance with the actual state of the external switch. 3- In case no failures/problems have been found, the problem is in the controller, which has to be replaced. |
| 0x2250 | 76 | 223 | MC-EF COIL SHOR.(For ACE2, ACE3) MC-EB COIL SHOR.(For ACE2, ACE3) | This alarm occurs when an overload of the MC driver | 1- Check the connections between the controller outputs and the loads. 2- Collect information about characteristics of the coil connected to the driver and ask for assistance to a EP technician in order to verify that the maximum current that can be supplied by the hardware is not exceeded. 3- In case no failures/problems have been found, the problem is in the controller, which has to be replaced. |
| 0x0000 | 0 | 223 | COIL SHOR. MC (For Combi AC0/Combi ACX and ACE4) | This alarm occurs when an overload of the MC driver | 1- Check the connections between the controller outputs and the loads. 2- Collect information about characteristics of the coil connected to the driver and ask for assistance to a EP technician in order to verify that the maximum current that can be supplied by the hardware is not exceeded. 3- In case no failures/problems have been found, the problem is in the controller, which has to be replaced. |
| 0x0000 | 0 | 224 | WAITING FOR NODE | The controller receives from the CAN bus the message that another controller in the net is in fault condition; as a consequence the controller itself cannot enter into an operative status, but it has to wait until the other node comes out from the fault status. | Check if any other device on the CAN bus is in fault condition. |
| 0x0000 | 0 | 225 | CURRENT SENS. KO | the current sensor of the controller can not be drived or always 0 | This type of fault is related to internal components. Replace the logic board. |
| 0xFFE2 | 85 | 226 | VACC OUT RANGE | 1- The CPOT input read by the microcontroller is not within the MIN VACC ÷ MAX VACC range, programmed through the PROGRAMM VACC function . 2- The acquired values MIN VACC and MAX VACC are inconsistent. | 1- Acquire the maximum and minimum potentiometer values through the PROGRAM VACC function. If the alarm is still present, check the mechanical calibration and the functionality of the accelerator potentiometer. 2- If the problem is not solved, replace the logic board. |
| 0xFFE3 | 32 | 227 | HW FAULT | At start-up, some hardware circuit intended to enable and disable the power bridge or the LC driver (output A12) is found to be faulty. The hexadecimal value “XX” facilitates EP technicians debugging the problem. | This type of fault is related to internal components. Replace the logic board. |
| 0x0000 | 51 | 228 | TILLER OPEN | Tiller/seat input has been inactive for more than 120 seconds. | 1- Activate the tiller/seat input. 2- Check the tiller/seat input state through the TESTER function. 3- Check the wirings. 4- Check if there are failures in the microswitches. 5- If the problem is not solved, replace the logic board. |
| 0xFFE5 | 34 | 229 | HW FAULT EB. | At start-up, the hardware circuit dedicated to enable and disable the EB driver (output A4) is found to be faulty. The hexadecimal value “XX” facilitates EP technicians debugging the problem. | This type of fault is not related to external components. Replace the logic board. |
| 0xFFE6 | 22 | 230 | LC COIL OPEN | This fault appears when no load is connected between the NMC output A12 and the positive voltage (for example the KEY voltage). | 1- Check the wiring, in order to verify if LC coil is connected to the right connector pin and if it is not interrupted. 2- If the alarm is still present, than the problem is inside the logic board; replace it. |
| 0xFFE8 | 21 | 232 | CONT. DRV. EV | AUX valve driver is not able to drive the load. | The device or its driving circuit is damaged. Replace the controller. |
| 0xFFE9 | 89 | 233 | POWERMOS SHORTED | The DC-link voltage drops to zero when a high-side or low-side MOSFET is turned on. | 1- Check that motor phases are correctly connected. 2- Check that there is no dispersion to ground for every motor phases. 3- In case the problem is not solved, replace the controller. |
| 0xFFF9 | 21 | 234 | DRV. SHOR. EV | AUX valve driver is shorted. | 1- Check if there is a short circuit or a low impedance path between the negative terminal of the coils and -B. 2- If the problem is not solved, replace the logic board. |
| 0xFFEB | 99 | 235 | CTRAP THRESHOLD | it is a controller internal check fault | check the parameter DUTY PWM CTRAP is correct.If the alarm is still,Ask for assistance to a EP technician |
| 0x6302 | 92 | 236 | CURRENT GAIN | The maximum current gain parameters are at the default values, which means that the maximum current adjustment procedure has not been carried out yet. | Ask for assistance to a EP technician in order to do the adjustment procedure of the current gain parameters. |
| 0xFFFA | 96 | 237 | ANALOG INPUT | This alarm occurs when the A/D conversion of the analog inputs returns frozen values, on all the converted signals, for more than 400 ms. The goal of this diagnosis is to detect a failure in the A/D converter or a problem in the code flow that skips the refresh of the analog signal conversion. | If the problem occurs permanently it is necessary to replace the logic board. |
| 0xFFEE | 16 | 238 | HW FAULT EV. | At start-up, the hardware circuit dedicated to enable and disable the EV drivers is found to be faulty. The hexadecimal value “XX” facilitates EP technicians debugging the problem. | This type of fault is not related to external components. Replace the logic board. |
| 0xFFEF | 12 | 239 | CONTROLLER MISM. | The software is not compatible with the hardware. Each controller produced is “signed” at the end of line test with a specific code mark saved in EEPROM according to the customized part number. According with this “sign”, only the customized firmware can be uploaded. | 1- Upload the correct firmware. 2- Ask for assistance to a EP technician in order to verify that the firmware is correct. |
| 0xFFF8 | 9 | 240 | EVP DRIVER OPEN | The EVP driver is not able to drive the EVP coil. The device itself or its driving circuit is damaged. | This fault is not related to external components. Replace the logic board. |
| 0xFFF1 | 21 | 241 | COIL SHOR. EVAUX | This alarm occurs when an overload of the EV drivers occurs. | 1- Check the connections between the controller outputs and the loads. 2- Collect information about characteristics of the coils connected to the drivers and ask for assistance to a EP technician in order to verify that the maximum current that can be supplied by the hardware is not exceeded. In case no failures/problems have been found, the problem is in the controller, which has to be replaced. |
| 0xFFF2 | 21 | 242 | OPEN COIL EV. | This fault appears when no load is connected between one or more EV outputs and the positive terminal PEV (pin A3). For the meaning of code “XX”, refer to paragraph 10.5 EVP1=BIT 0 EV1=BIT 1 EV2=BIT 2 EV3=BIT 3 EVP2=BIT 4 EV4=BIT 5 EV5=BIT 7 HORN=BIT 6 | 1- Check the coils. 2- Check the wiring. 3- If the problem is not solved, replace the logic board. |
| 0xFFF3 | 48 | 243 | THROTTLE PROG. | A wrong profile has been set in the throttle profile. | Set properly the throttle-related parameters |
| 0xFF01 | 1 | 244 | WARNING SLAVE | Warning on supervisor uC. | Connect the Console to the supervisor uC and check which alarm is present. |
| 0xFFF5 | 24 | 245 | IQ MISMATCHED | The error between the Iq (q-axis current) setpoint and the estimated Iq is out of range. | Ask for assistance to a EP technician in order to do the correct adjustment of the motor parameters. |
| 0x3224 | 42 | 246 | EB. DRIV.OPEN | The EB coil driver is not able to drive the load. The device itself or its driving circuit is damaged. | This type of fault is not related to external components. Replace the logic board. |
| 0x0000 | 0 | 247 | DATA ACQUISITION | Controller in calibration state. | The alarm ends when the acquisition is done. |
| 0x8130 | 67 | 248 | NO CAN MSG. | CANbus communication does not work properly. The hexadecimal value “XX” identifies the faulty node. | 1- Verify the CANbus network (external issue). 2- Replace the logic board (internal issue). |
| 0x0000 | 0 | 249 | CHECK UP NEEDED | This is a warning to point out that it is time for the programmed maintenance. | Turn on the CHECK UP DONE option after that the maintenance service. |
| 0x4211 | 61 | 250 | THERMIC SENS. KO | The output of the controller thermal sensor is out of range. | This kind of fault is not related to external components. Replace the controller. |
| 0x3100 | 41 | 251 | WRONG SET BAT. | At start-up, the controller checks the battery voltage (measured at the KEY input A10) and it verifies that it is within a range of ±20% around the nominal value. | 1- Check that the SET BATTERY parameter inside the ADJUSTMENTS list matches with the battery nominal voltage. 2- If the battery nominal voltage is not available for the SET BATTERY parameter inside the ADJUSTMENTS list, record the value stored as HARDWARE BATTERY RANGE parameter in the SPECIAL ADJUST. list and contact a EP technician. 3- Through the TESTER function, check that the KEY VOLTAGE reading shows the same value as the key voltage measured with a voltmeter on pin A10. If it does not match, then modify the ADJUST BATTERY parameter according to the value read by the voltmeter. 4- Replace the battery. |
| 0xFFFD | 36 | 253 | FIELD ORIENT. KO | The error between the Id (d-axis current) setpoint and the estimated Id is out of range. | Ask for assistance to a EP technician in order to do the correct adjustment of the motor parameters. |
| 0x3222 | 40 | 254 | EB. DRIV.SHRT. | 1- The EB driver is shorted. 2- The microcontroller detects a mismatch between the valve setpoint and the feedback at the EB output. | 1- Check if there is a short or a low impedance path between the negative coil terminal and -B. 2- Check if the voltage applied is in accordance with the parameters settings 3- If the problem is not solved, replace the controller. |