Diagnostics, Messages; Status Messages; Warnings And Group Errors - Siemens SIRIUS 3RW44 Manual

Diagnostics and Messages
7.1

Diagnostics, Messages

7.1.1 Status Messages

Message
Check voltage
Check line phases
Ready to start
Starting is active
Motor is running
Stopping is active
Motor cool-down time active
Contact block cool-down time

7.1.2 Warnings and Group Errors

Message
No line voltage
Incorrect start conditions
Phase failure L1
7-2
Cause / Remedy
Main voltage not yet applied.
Main voltage is applied, but the motor is not connected or not properly connected, or the motor is properly
connected but no phase voltage is present.
Device is ready to start (main voltage is applied and the motor is connected properly).
The motor will start when a start command is received.
Motor is started in the set starting mode.
Device is in bridging mode (bypass contactor). Starting completed.
Motor is stopped using the selected stopping mode.
After overload tripping of the thermal motor model, it is impossible to start the motor for a defined period of time
(parameter: pre-charge time) to ensure that the motor can cool down.
After overload tripping of the inherent protection, motor start is impossible for 30 s to allow the device to cool
down.
Cause / Remedy
x Start command output even though the main voltage has not yet been applied.
Remedy: switch on line voltage.
x 1. Error occurs without motor starting.
Cause:
- Motor is not connected correctly.
- Inside delta circuit wrongly configured.
- Ground fault present.
Remedy: Check and correct wiring (see inside delta circuit wiring suggestions).
2. Error occurs during starting.
Cause:
- Start voltage too high
- Breakaway pules set (unnecessarily): instable motor start
(Only set breakaway pulse if it is required. In the case of pumps, for example ,a breakaway
pulse often causes misfiring.)
If the idle time < 5 s since the last start, the 3RW44 starts with a higher start voltage. In
combination with a set breakaway pulse this can lead to "Incorrect start conditions".
Remedy: adjust the parameters or increase the idle time.
x Phase L1 missing or it fails while motor is running or it drops off.
Remedy: connect L1 or rectify cause of voltage drop.
Or: the motor that is connected is too small and the error message occurs immediately
after switching over to bridging mode.
Remedy: adjust rated operating current for connected motor or set it to minimum (if motor
current is lower than 10 % of the configured I
starter).
, the motor cannot be operated with this
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SIRIUS 3RW44 manual
GWA 4NEB 535 2195-02 DS 02