User Manual 08/2003 Edition

02.99 08.03
6.2.2 List of faults and warnings
Version: 04.01.03
700 / P947.0 Overvoltage
Siemens AG 2003 All rights reserved
SIMODRIVE POSMO A User Manual (POS1) – 08.03 Edition
6 Fault Handling and Diagnostics
6.2 Faults and warnings
Reader’s note
The faults and warnings, listed in the following, are valid for all
software releases of SIMODRIVE POSMO A.
The complete list is updated corresponding to the Edition of the
documentation (refer to the Edition status in the header line) and
corresponds to the software release of SIMODRIVE POSMO A
documented here.
The individual faults and warnings are not designated as a function of
the software release.
Cause The load voltage has exceeded 35 V (75 W motor) or 60 V (300 W
motor).
When braking, the braking energy is excessive which causes an inadmissible
increase in the load voltage.
Remedy Provide regenerative feedback protection.
Acknowledgement Remove cause, set STW.7 = 1/0 and STW.0 = 0/1
Stop response Pulse suppression
701 / P947.1 Undervoltage of the load current supply
Cause The load voltage has fallen below 17 V.
The load power supply is overloaded.
SITOP: The load voltage was powered-down when braking due to overvoltage.
Remedy Increase load power supply rating.
SITOP: Provide regenerative feedback protection.
Acknowledgement Remove cause, set STW.7 = 1/0 and STW.0 = 0/1
Stop response Pulse suppression
702 / P947.2 Electronics temperature
Cause The electronics temperature is > 90 degrees Celsius and has been present
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)
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