Lenze 9300 Servo Drive

Fault Code and MeaningCause and Remedy
0011 (OC1)
Short circuit of motor cable

Cause: Short circuit or Excessive capacitive charging current in the motor cable.



Remedy:

  • Search for cause of short circuit.

  • Check motor cable.

  • Use motor cable which is shorter or of lower capacitance.


0012 (OC2)
Motor cable earth fault

Cause: One of the motor phases has earth contact.



Remedy:

  • Search for cause of short circuit.

  • Check motor cable.


0015 (OC5)
I x t overload

Cause: Frequent and too long acceleration with overcurrent or Continuous overload with Imotor > 1.05 x Irx.



Remedy:

  • Check drive dimensioning.


0016 (OC6)
I²xt overload

Cause: Frequent and too long acceleration processes with motor overcurrent or Permanent motor overload with Imotor > Irmotor.



Remedy:

  • Check drive dimensioning.


x018 (OC8)
I²xt overload advance warning

Cause: Frequent and too long acceleration processes with motor overcurrent or Permanent motor overload with Imotor > Irmotor.



Remedy:

  • Check drive dimensioning.


1020 (OU)
Overvoltage in DC bus

Cause: Braking energy is too high (DC-bus voltage is higher than set in C0173).



Remedy:

  • Use braking unit or regenerative module.

  • Check dimensioning of the brake resistance.


1030 (LU)
Undervoltage in the DC bus

Cause: DC bus voltage is lower than specified in C0173.



Remedy:

  • Check mains voltage.

  • Check supply cable.


x032 (LP1)
Motor phase failure

Cause: A current-carrying motor phase has failed or The current limit value is set too low.



Remedy:

  • Check motor.

  • Check motor cable.

  • Switch off monitoring (C0597 = 3).

  • Set higher current limit value via C0599.


0050 (OH)
Heatsink temperature > +90 °C

Cause: Ambient temperature Tu > +40 °C or > +50 °C; Heatsink is very dirty; or Wrong mounting position.



Remedy:

  • Allow module to cool and ensure better ventilation.

  • Check ambient temperature in the control cabinet.

  • Clean heatsink.

  • Change mounting position.


x053 (OH3)
Motor temperature > +150 °C threshold

Cause: Motor is thermally overloaded due to impermissible continuous current, frequent/long acceleration, or no PTC/temperature contact connected.



Remedy:

  • Check drive dimensioning.

  • Switch off monitoring (C0583 = 3).

  • Correct wiring.


x054 (OH4)
Heatsink temperature > C0122

Cause: Ambient temperature high, Heatsink dirty, Wrong mounting position, or The value specified under C0122 is set too low.



Remedy:

  • Allow module to cool and ensure better ventilation.

  • Check ambient temperature in the control cabinet.

  • Switch off monitoring (C0582 = 3).

  • Clean heatsink.

  • Change mounting position.

  • Enter a higher value under C0122.


x057 (OH7)
Motor temperature > C0121

Cause: Motor is thermally overloaded, No PTC connected, or value specified under C0121 is set too low.



Remedy:

  • Check drive dimensioning.

  • Switch off monitoring (C0584 = 3).

  • Correct wiring.

  • Enter a higher value in C0121.


x058 (OH8)
Motor temperature via inputs T1 and T2 is too high

Cause: Motor is thermally overloaded or Terminals T1 and T2 are not connected.



Remedy:

  • Check drive dimensioning.

  • Switch off monitoring (C0585 = 3).

  • Connect PTC/temperature contact.


x061 (CE0)
Automation interface (AIF) communication error

Cause: Faulty transfer of control commands via AIF.



Remedy:

  • Plug in the communication module/keypad XT firmly, screw down if necessary.

  • Switch off monitoring (C0126 = 3).


x062 (CE1)
Communication error on CAN1_IN

Cause: CAN1_IN object receives faulty data or communication is interrupted.



Remedy:

  • Check wiring at X4.

  • Check sender.

  • Increase monitoring time under C0357/1, if necessary.

  • Switch off monitoring (C0591 = 3).


x063 (CE2)
Communication error on CAN2_IN

Cause: CAN2_IN object receives faulty data or communication is interrupted.



Remedy:

  • Check wiring at X4.

  • Check sender.

  • Increase monitoring time under C0357/2, if necessary.

  • Switch off monitoring (C0592 = 3).


x064 (CE3)
Communication error on CAN3_IN

Cause: CAN3_IN object receives faulty data or communication is interrupted.



Remedy:

  • Check wiring at X4.

  • Check sender.

  • Increase monitoring time under C0357/3, if necessary.

  • Switch off monitoring (C0593 = 3).


x065 (CE4)
BUS-OFF state of system bus (CAN)

Cause: The controller has received too many faulty telegrams via the system bus (CAN) and has disconnected from the bus.



Remedy:

  • Check wiring at X4: Is the bus correctly terminated?

  • Check shield connection of the cables.

  • Check PE connection.

  • Check bus load, reduce the baud rate if necessary. (Observe cable length!)

  • Switch off the monitoring (C0595 = 3).


0071 (CCr)
System failure

Cause: Strong interference injection on the control cables or Ground/earth loops in the wiring.



Remedy:

  • Screen control cables.

  • Check wiring.

  • Check PE connection.

  • After troubleshooting: Deenergise the device completely (disconnect 24 V supply, discharge DC bus)!


0072 (PR1)
Checksum error in parameter set 1

Cause: Fault when loading a parameter set; Interruption while transmitting; or Stored parameters incompatible with loaded software.



Remedy:

  • Set the required parameters and store them under C0003 = 1.

  • As to PLC devices, check the use of pointers.

  • Store the parameter set under C0003 = 1 first to allow for a faults reset.


0074 (PEr)
Program error

Cause: Error in the program flow.



Remedy:

  • Send the parameter set (on floppy disk/CD-ROM) with a detailed description of the problem to Lenze.

  • After troubleshooting: Deenergise the device completely!


0075 (PR0)
Error in parameter set

Cause: The operating system software has been updated.



Remedy:

  • Storage of the Lenze setting C0003 = 1.

  • After troubleshooting: Deenergise the device completely!


0079 (PI)
Fault during parameter initialisation

Cause: Error detected during parameter set transfer between two devices or Parameter set does not match the controller (e.g. power rating mismatch).



Remedy:

  • Correct parameter set.

  • Send parameter set with description to Lenze.


x082 (Sd2)
Resolver error at X7

Cause: Resolver cable interrupted.



Remedy:

  • Check cable for open circuit.

  • Check resolver.

  • Switch off the monitoring (C0586 = 3).


x083 (Sd3)
Encoder error at X9

Cause: Cable interrupted or Pin X9/8 not connected.



Remedy:

  • Check cable for open circuit.

  • Apply 5 V to pin X9/8 or switch off monitoring (C0587 = 3).


x085 (Sd5)
Encoder error at X6/1 and X6/2

Cause: Current signal at X6/1 X6/2 < 2mA.



Remedy:

  • Check cable for open circuit.

  • Check current signal encoder.

  • Switch off monitoring (C0598 = 3).


x086 (Sd6)
Motor temperature sensor error (X7 or X8)

Cause: Encoder for detecting the motor temperature at X7 or X8 indicates undefined values.



Remedy:

  • Check cable for firm connection.

  • Switch off the monitoring (C0594 = 3).


x087 (Sd7)

Initialisation or Communication error of absolute value encoder at X8

Cause: The absolute value encoder must be initialised, has a defect, or is not sending data. A rotor position adjustment could not be completed.


Remedy:

  • Save parameter set, completely deenergise the device, and switch it on again.

  • Make sure the cable at X8 is tightened properly and check for open circuits.

  • Check absolute value encoder for correct function.

  • Set voltage supply via C0421 to 8.0 V.

  • If no Stegmann encoder is connected, check configuration.

  • Repeat rotor position adjustment (See 6.8-1).

  • Note: After an Sd7 fault, rotor position adjustment must be repeated to prevent uncontrolled movements.


x088 (Sd8)

SinCos encoder at X8 error

Cause: SinCos encoder sends inconsistent data (tracks damaged), interference level on cable is too high, or open circuit detected.


Remedy:

  • Replace SinCos encoder if tracks are damaged.

  • Check correct shield connection of encoder cable.

  • Decelerate actuation of fault message via filter time constant (C0559 for ECSx, C0575 for 9300).

  • Check cable for wire breakage.

  • Connect correct SinCos encoder (Stegmann).

  • Set supply voltage correctly in C0421.


x089 (PL)

Error during rotor position adjustment

Cause: The rotor position adjustment was cancelled, or an error (Sd7 or Sd8) occurred during adjustment.


Remedy:

  • Repeat rotor position adjustment (See 6.8-1).

  • Note: Do not commission without successfully executed rotor position adjustment.


x091 (EEr)

External monitoring triggered via DCTRL

Cause: A digital signal assigned to the TRIP-SET function has been activated.


Remedy:

  • Check external encoder.

  • Switch off the monitoring (Set C0581 = 3).


0105 (H05)

Internal fault (memory)

Cause: Internal memory fault.


Remedy:

  • Contact Lenze.


0107 (H07)

Internal fault (power stage)

Cause: During initialisation, an incorrect power stage was detected.


Remedy:

  • Contact Lenze.


x110 (H10)

Heatsink temperature sensor error

Cause: Sensor for detecting heatsink temperature indicates undefined values.


Remedy:

  • Contact Lenze.

  • Switch off the monitoring (Set C0588 = 3).


x111 (H11)

Temperature sensor error (Internal)

Cause: Sensor for detecting internal temperature indicates undefined values.


Remedy:

  • Contact Lenze.

  • Switch off the monitoring (Set C0588 = 3).


x153 (P03)

Following error

Cause: Angle difference between set and actual position is larger than the limit (C0255), or drive cannot follow digital frequency.


Remedy:

  • Increase following error limit under C0255.

  • Switch off the monitoring (Set C0589 = 3).

  • Check drive dimensioning.


x163 (P13)

Angle overrun

Cause: Phase controller limit reached or drive cannot follow the digital frequency (Imax limit).


Remedy:

  • Enable drive.

  • Check drive dimensioning.


x166 (P16)

Faulty transfer of system bus (CAN) sync telegram

Cause: Sync telegram from master (PLC) is out of sync, not received, or controller enabled too fast.


Remedy:

  • Set “sync cycle” to transmission cycle of master under C1121.

  • Check communication channel, baud rate, and controller address.

  • Delay the controller enable (depends on time interval between sync telegrams).

  • Check C0362 (displays time interval). If C0362 = 0, communication is interrupted.


x169 (P19)

Input values at X9 are limited

Cause: The function block DFIN limits the input values causing loss of increments.


Remedy:

  • Reduce the frequency on the digital frequency connection.

  • Check settings for slave (C0425) and master (C0030). These must be identical.


x190 (nErr)

Speed control error

Cause: Speed out of tolerance margin (C0576). Active load too high (e.g. hoists) or mechanical blockades.


Remedy:

  • Check drive dimensioning.

  • Check for mechanical blockades on load side.


x200 (NMAX)

Maximum system speed exceeded

Cause: Maximum system speed (C0596) exceeded. Active load too high or torque excessively limited.


Remedy:

  • Check drive dimensioning.

  • Increase torque limit if necessary.

  • Switch off monitoring (Set C0607 = 3).