6
6.2 Faults and warnings
6-239
E Siemens AG 2013 All Rights Reserved
SIMODRIVE POSMO A User Manual (POS1) – 08/2013 Edition
702 / P947.2 Electronics temperature
Cause The electronics temperature is > 90 degrees Celsius and has been pre-
sent for longer than specified in P29 (electronics temperature tolerance
time).
An excessive electronics temperature is first signaled using warning
800 (warning, electronics temperature).
The ambient temperature is too high.
Remedy Observe the de-rating characteristic.
Reduce ambient temperature.
Acknowledgement Remove cause, set STW.7 = 1/0 and STW.0 = 0/1
Stop response Braking with maximum acceleration (P22)
703 / P947.3 Overcurrent fault
Cause The current limit has been exceeded.
The motor or the electronics is defective.
Remedy Replace the positioning motor.
Acknowledgement Remove cause, set STW.7 = 1/0 and STW.0 = 0/1
Stop response Pulse suppression
704 / P947.4 Encoder fault
Cause The signal sequence for the rotor position identification is not permissi-
ble.
The number of increments between two rotor position signals lies out-
side the permissible tolerance.
The motor or the electronics is defective.
Remedy Replace the positioning motor.
Acknowledgement Remove cause, set STW.7 = 1/0 and STW.0 = 0/1
Stop response Pulse suppression
705 / P947.5 Standstill monitoring
Cause The motor was moved out of the standstill area (P14) in the closed-loop
controlled status.
Note:
The fault can be changed-over to a warning using P30 (fault suppression).
Remedy Check P14 (standstill area).
Acknowledgement Remove cause, set STW.7 = 1/0 and STW.0 = 0/1
Stop response Pulse suppression
6 Fault Handling and Diagnostics
02.9904.0108.06
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