SINAMICS G130/G150
List Manual (LH2), 07/2016, A5E03263479A
1533
4 Faults and alarms
4.2 List of faults and alarms
F06909 Braking Module internal Vce fault
Message value: %1
Message class: Braking Module faulted (14)
Drive object: B_INF
Component: None Propagation: GLOBAL
Reaction: OFF2
Acknowledge: IMMEDIATELY
Cause: In the power unit, the monitoring of the collector-emitter voltage (U_ce) of the power semiconductor to control the
braking resistor has responded.
Possible causes:
- short circuit at the braking resistor terminals.
- defective power semiconductor in the braking resistor control.
Note:
Under certain circumstances, this alarm is also output if a braking resistor has not been connected and power is fed
back into the Braking Module.
See also: r3689 (Digital Braking Module Uce fault)
Remedy: - connect a braking resistor.
- check the braking resistor connection.
- check the braking resistor.
- carry out a POWER ON (switch-off/switch-on).
- replace the unit.
A06921 (N) Braking resistor phase unsymmetry
Message value: -
Message class: Braking Module faulted (14)
Drive object: VECTOR_G
Component: Motor Propagation: GLOBAL
Reaction: NONE
Acknowledge: NONE
Cause: - the three resistors of the braking chopper are not symmetrical.
- DC link voltage oscillations caused by fluctuating loads of the connected drives.
Remedy: - check the feeder cables to the braking resistors.
- if required, increase the value for detecting asymmetry (p1364).
See also: p1360 (Braking chopper braking resistor cold), p1362 (Braking chopper activation threshold), r1363
(Braking chopper output voltage), p1364 (Braking chopper resistor asymmetry)
Reaction upon N: NONE
Acknowl. upon N: NONE
F06922 Braking resistor phase failure
Message value: %1
Message class: Braking Module faulted (14)
Drive object: VECTOR_G
Component: Motor Propagation: GLOBAL
Reaction: NONE
Acknowledge: IMMEDIATELY
Cause: A phase failure for the brake resistor was detected.
Fault value (r0949, interpret decimal):
11: Phase U
12: Phase V
13: Phase W
See also: p3235 (Phase failure signal motor monitoring time)
Remedy: Check the feeder cables to the braking resistors.
See also: p1360 (Braking chopper braking resistor cold), p1362 (Braking chopper activation threshold), r1363
(Braking chopper output voltage), p1364 (Braking chopper resistor asymmetry)
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