7
7.3 List of faults and warnings
7-688
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SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
769 Denominator bandwidth > twice the natural frequency
Cause The denominator bandwidth of a current or speed setpoint filter is
greater than twice the natural frequency.
This alarm is only generated for the general bandstop, if the following is
valid:
Speed setpoint filter 1: P1516 > 2 * P1514 or P1520 <> 100.0
Speed setpoint filter 2: P1519 > 0.0 or P1521 <> 100.0
Current setpoint filter 1: P1212 > 0.0
Current setpoint filter 2: P1215 > 0.0
Current setpoint filter 3: P1218 > 0.0
Current setpoint filter 4: P1221 > 0.0
Remedy The denominator bandwidth of a current or speed setpoint filter must
be less than twice the natural frequency.
Speed setpoint filter 1: P1515 <= 2 * P1514 * 0.01 * P1520
Speed setpoint filter 2: P1518 <= 2 * P1517 * 0.01 * P1521
Current setpoint filter 1: P1211 <= 2 * P1210
Current setpoint filter 2: P1214 <= 2 * P1213
Current setpoint filter 3: P1217 <= 2 * P1216
Current setpoint filter 4: P1220 <= 2 * P1219
Acknowledgement RESET FAULT MEMORY
Stop response STOP II (SRM, SLM) STOP I (ARM)
770 Format error
Cause The calculated bandstop filter coefficients cannot be represented in the
internal format.
Remedy Change filter setting.
Acknowledgement RESET FAULT MEMORY
Stop response STOP II (SRM, SLM) STOP I (ARM)
771 Induction motor oper.: drive converter frequency
motor \%d not permissible
Cause In induction motor operation (selected by P1465 < P1146), drive con-
verter frequencies of 4 or 8 kHz are permissible.
Remedy – Change P1100
– Cancel induction motor operation (P1465 > P1146)
Acknowledgement RESET FAULT MEMORY
Stop response STOP II (SRM, SLM) STOP I (ARM)
772 Induction motor oper.: speed controller gain, motor
\%d too high
Cause The P gain of the speed controller (P1451) is too high.
Remedy For the speed controller, enter a lower value for the P gain (P1451).
Acknowledgement RESET FAULT MEMORY
Stop response STOP II (SRM, SLM) STOP I (ARM)
7 Fault Handling/Diagnostics
04.05
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