Diagnosis and Messages
SIRIUS 3RW44 System Manual
GWA 4NEB 535 2195-02 DS 04
7-7
7.1.3 Device Errors
Note
Some error messages may be incorrect (e.g. Loss of phase L1, although L2 is
missing).
Note
When using the 3RW44 soft starter in an IT system with ground fault monitoring:
3RW44, product version ≤
*E06* and the PROFIBUS DP communication module
may not be used in this network configuration. 3RW44 soft starters as of product
version *E07* can be used in combination with the PROFIBUS DP
communication module. However, phase voltage values (UL-N) and phase-to-
phase voltage values (UL-L) may be displayed incorrectly on the measurement-
value display of the 3RW44.
Message Cause / Remedy
Contact block damaged (for
product version ≥*E04* devices)
At least one bypass element is welded and/or at least one thyristor has shorted. This message is generated when
the control supply voltage is applied and the current flow is being measured, but no start command has been
issued.
Remedy: Contact your SIEMENS contact partner or Technical Assistance (see Chapter “Important notes”)
Switching element 1 failed Thyristor in phase L1 has shorted. (This message is displayed when the start command is issued.)
Remedy: Contact your SIEMENS contact partner or Technical Assistance.
Switching element 2 failed Thyristor in phase L2 has shorted. (This message is displayed when the start command is issued.)
Remedy: Contact your SIEMENS contact partner or Technical Assistance.
Switching element 3 failed Thyristor in phase L3 has shorted. (This message is displayed when the start command is issued.)
Remedy: Contact your SIEMENS contact partner or Technical Assistance.
Flash memory error The device memory is faulty.
Remedy: Contact your SIEMENS contact partner or Technical Assistance.
Device not identified Device has not yet been identified. It must be given identification data.
Remedy: Contact your SIEMENS contact partner or Technical Assistance.
Versions not matching The version does not match the firmware.
Remedy: Contact your SIEMENS contact partner or Technical Assistance.
Bypass part fault The bypass contactor is welded or defective.
Remedy: Contact your SIEMENS contact partner or Technical Assistance.
Heatsink thermistor open Option 1: The temperature sensor at the heatsink of the starter is not connected or is defective.
Option 2: 3RW4465 or 3RW4466 may have a defective fan on the front of the starter.
Remedy: For 3RW4465 and 3RW4466 only: Try to rectify the fault after a cooling down period of approx. 30 to 60
minutes by switching the control supply voltage on and off again. If successful, check whether the fan on the front
of the soft starter runs when a start command is issued. If not, it may be necessary to replace the fan. (The fan on
the front of the starter and the fan on the bottom of the device must both be running in trouble-free operation).
For all 3RW44 starters:
If switching the control supply voltage on and off did not cause the error message to reset, contact your SIEMENS
contact partner or Technical Assistance.
Heatsink thermistor short The temperature sensor at the heatsink of the starter is defective.
Remedy: Contact your SIEMENS contact partner or Technical Assistance.
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