Troubleshooting; Maintenance And Troubleshooting; Troubleshooting Tables - Siemens SIKOSTART 3RW34 Instructions De Service

10 Troubleshooting

10.1 Maintenance and Troubleshooting

Regularly check (the frequency depends upon the amount of airborne particulate matter) the fans and heatsink fins
for unimpeded air flow and check that the fans are moving freely.
This checklist does not provide an exhaustive survey of maintenance steps necessary to ensure safe operation of
the equipment. Particular applications may require further procedures. Should further information be desired or
should particular problems arise which are not covered sufficiently for the purchaser's purposes, the matter should
be referred to the local Siemens sales office.
Dangerous voltages are present in the equipment which can cause death, serious injury, or property damage. Always
de-energize and ground the equipment before maintenance. Maintenance should be performed only by qualified
personnel.
The use of unauthorized parts in the repair of the equipment or tampering by unqualified personnel will result in
dangerous conditions which can cause death, serious injury, or equipment damage. Follow all safety instructions
contained herein.

10.2 Troubleshooting Tables

Two LED indicators on the SIKOSTART Soft Starter provide fault indications as listed in Table 14 which includes
recommended checks and remedies. Table 15 is a general troubleshooting table listing faults, their possible causes,
and recommended checks and remedies.
Inside Delta wiring problems are described in Table 16.
LED 1 single flashing
LED 1 double flashing
LED 2 double flashing
Table 14 : LED Fault Indications
3ZX1012-0RW34-1AN1
Hazardous voltage/fire hazard.
Failure to properly maintain this equipment can result
in death, serious injury, property damage or product
failure. The instructions referred to below should be
carefully reviewed, understood and followed regularly.
Indication Cause
Phase loss
EEPROM error
Shorted SCR
DANGER
Check/Remedy
Verify that proper three-phase incoming power is present per
Section 7.5, steps 3 and 4.
Inside Delta wiring problem. See problem 2, Table 16.
Replace the logic board. Replacement instructions are included
with the new logic board.
Check SCRs as described in Section 10.4.
Troubleshooting
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