Siemens SIRIUS 3RW40, Manual

Page: 97 / 212

WARNING
Commissioning
12.3 3RW30: LEDs and troubleshooting
SIRIUS 3RW30 / 3RW40
Manual, 01/2010, 535 1995-02 DS01
97
12.3 3RW30: LEDs and troubleshooting
1) The fault is automatically reset by an outgoing event. An automatic restart is initiated and
the 3RW restarted if a start command is present at the input.
2) The fault can be acknowledged by removing the start command at the start input.
3) Switch off the control voltage, then switch it on again. If the fault is still present, contact
your SIEMENS partner or Technical Assistance.
For notes on troubleshooting, refer to the table below.
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Automatic restart
Danger of death, serious injury, or property damage.
If you do not want the motor to start automatically, you must integrate suitable additional
components, e.g. phase failure or load monitoring devices, into the control and main circuits.
Fault Cause Remedy
Impermissible electronics supply
voltage The control supply voltage does not
correspond to the soft starter's rated
voltage. Check the control supply voltage; an
incorrect control supply voltage could be
caused by a power failure or a voltage
dip.
Bypass overload A current > 3.5 x I
e
of the soft starter
occurs for > 60 ms in bypass mode (e.g.
because the motor is blocked).
Check the motor and load, and check the
soft starter's dimensions.