Lenze 931K - Manual (Page 61)

Troubleshooting and fault elimination
Fault elimination
9
l
61 KHB 13.0004−EN 2.1
9 Troubleshooting and fault elimination
9.1 Fault elimination
Fault Remedy
The controller operates faultlessly but the
PLC does not receive any process data. Correct the message assignment in SDC:
l Assign the response message 0 to the receive message 0 and
the response message 1 to the receive message 1.
The controller is in the wrong operating
mode / does not receive any control
commands. Check the telegram identifier in byte 0:
l "Positioning" mode: Byte 0 = E0
h
(receive message 0/response
message 0).
l "Speed control" mode: Byte 0 = E1
h
(receive
message 1/response message 1).
The master signals an error during data
transmission (e.g. access error). Check the memory area used by the PLC in the hardware
configuration.
The power stage is active but the motor
does not rotate. Enter the torque setpoint limitation in the receive message:
l For limitation via analog input (PNU 1022.0 = 1, 2), apply a
voltage at input (AIN).
l For limitation via PROFIBUS (PNU 1022.0 = 7), enter the setpoint
directly via PNU 1022.1.
No processing of the PROFIdrive profile, but
the motor is rotating. Check that the controller enable logic is entered in the receive
message and that the value is set appropriately.
9.2 Error messages
9.3 Transfer of error messages
The error messages of the controller are coded in the error numbers 1 ... 64. These error
numbers can be read via PNU 1601:
ƒ PNU 1601.0 transfers the error numbers 1 ... 32
ƒ PNU 1601.1 transfers the error numbers 33 ... 64
PNU Name Possible settings Characteristics
Lenze Selection Description
1601 Error Code Error messages
0 Error Field 0 Ċ UINT32 RO Ċ
Error numbers 1 ... 32 of the
controller
1 Error Field 1 Ċ UINT32 RO Ċ
Error numbers 33 ... 64 of the
controller