Internal Armature Short-Circuit Active; De-Activation Only Effective After Power On - Siemens Sinamics S120 Diagnostic Manual

SINAMICS alarms
207908 <location>Internal armature short-circuit active
Message value: -
Drive object: SERVO_COMBI, SERVO_SINUMERIK828
Reaction: NONE
Acknowledge: NONE
Cause: The Motor Module signals that the motor is short-circuited through the power semiconductors (r1239.5 = 1). The
pulses cannot be enabled. The internal armature short-circuit is selected (p1231 = 4):
Remedy: For synchronous motors, the armature short-circuit braking is activated if a 1 signal is present via binector input p1230.
See also: p1230 (Armature short-circuit / DC brake activation), p1231 (Armature short-circuit / DC brake configuration)
207909 <location>Internal voltage protection: De-activation only effective after POWER ON
Message value: -
Drive object: SERVO_COMBI, SERVO_SINUMERIK828
Reaction: NONE
Acknowledge: POWER ON
Cause: The de-activation of the internal voltage protection (p1231 not equal to 3) only becomes effective after POWER ON.
The status signal r1239.6 = 1 indicates that the internal voltage protection is ready.
Remedy: None necessary.
This a note for the user.
207910 <location>Drive: Motor overtemperature
Message value: %1
Drive object: SERVO_COMBI, SERVO_SINUMERIK828
Reaction: NONE
Acknowledge: NONE
Cause: KTY:
The motor temperature has exceeded the fault threshold (p0604 or p0616).
PTC or bimetallic NC contact:
The response threshold of 1650 Ohm was exceeded.
Alarm value (r2124, interpret decimal):
- if SME/TM120 is not selected (p0601 < 10),
1: No output current reduction.
2: Output current reduction active.
- if SME/TM120 is selected (p0601 = 10, 11),
this is the number of the temperature channel leading to the message.
See also: p0604 (Motor temperature alarm threshold)
Remedy: - reduce the motor load.
- check the ambient temperature and the motor ventilation.
- check the wiring and the connection of the PTC or bimetallic NC contact.
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Diagnostics Manual, 07/2010, 6FC5398-8BP40-0BA0
Alarms