Siemens SINAMICS S200 - Page 454

Cause: The power unit has executed too many switching operations for current limitation.
- Closed-loop control is incorrectly par
ameterized.
- Motor has a short-circuit or fault to ground (frame).
- U/f operation: Up ramp set too low.
- U/f operation: Rated motor current is signi󹪝cantly higher than that of the power section.
- Infeed: High discharge and post-charging currents for line voltage dip.
- Infeed: High post-charging currents for overload when motoring and DC link voltage dip.
- Infeed: Short-circuit currents at switch-on as there is no line reactor.
- Power cables are not correctly connected.
- Power cables exceed the maximum permissible length.
- Power unit defective.
Additional causes for a parallel switching device (r0108.15 = 1):
- A power unit has tripped (switched o󹪜) due to a ground fault.
- The closed-loop circulating current control is either too slow or has been set too fast.
Fault value (r0949, interpret bit-serial):
Bit 0: Phase U.
Bit 1: Phase V.
Bit 2: Phase W.
Remedy: - Check the motor data - If required, carry out commissioning.
- Check the motor cir
cuit con󹪝guration (star-delta)
- U/f operation: Increase up ramp.
- U/f operation: Check the rated currents of the motor and power unit.
- Infeed: Check the line quality.
- Infeed: Reduce the motor load.
- Infeed: Correct connection of the line reactor.
- Check the power cable connections.
- Check the power cables for short-circuit or ground fault.
- Check the length of the power cables.
- Replace power unit.
For a parallel switching device (r0108.15 = 1) the following additionally applies:
- Check the ground fault monitoring thresholds (p0287).
- Check the setting of the closed-loop circulating current control (p7036, p7037).
A30082 Power unit: cooling medium 󹪞ow rate too lo
w alarm threshold
Message class: Power electronics faulted (5)
Message value: -
Component: Power Unit
Response: NONE
Acknowledgment: NONE
Cause: The 󹪞o
w rate is too low, and has fallen below the speci󹪝ed alarm threshold. If the
󹪞ow rate is still too low after the
speci󹪝ed time has expired, then fault F30083 is output.
Remedy: - Check the coolant 󹪞ow rate.
- Chec
k the thermal conductivity of the coolant.
- Check the coolant concentration.
F30083 Power unit: cooling medium 󹪞ow rate t
oo low fault threshold
Message class: Power electronics faulted (5)
Message value: -
Component: Power Unit
Response: OFF2
Acknowledgment: IMMEDIATELY
System messages
11.3Faults and alarms
SINAMICS S200 pulse train servo drive system with SIMOTICS S-1FL2
452 Operating Instructions, 11/2023, FW V6.3, A5E51646767B AA