Encoder 3: Temperature Sensor Fault; Encoder 3: Unknown Alarm; Vsm: Temperature Fault Threshold Exceeded - Siemens Sinamics S120 Diagnostic Manual

SINAMICS alarms
233920 <location>Encoder 3: Temperature sensor fault
Message value: Fault cause: %1, channel number: %2
Drive object: SERVO_COMBI, SERVO_SINUMERIK828
Reaction: NONE
Acknowledge: NONE
Cause: When evaluating the temperature sensor, an error occurred.
Alarm value (r2124, interpret decimal):
Low word low byte: Cause:
1: Wire breakage or sensor not connected (KTY: R > 1630 Ohm).
2: Measured resistance too low (PTC: R < 20 Ohm, KTY: R < 50 Ohm).
Additional values:
Only for internal Siemens troubleshooting.
Low word high byte: Channel number.
Remedy: - check that the encoder cable is the correct type and is correctly connected.
- check the temperature sensor selection in p0600 to p0603.
- replace the Sensor Module (hardware defect or incorrect calibration data).
233999 <location>Encoder 3: Unknown alarm
Message value: New message: %1
Drive object: SERVO_COMBI, SERVO_SINUMERIK828
Reaction: NONE
Acknowledge: NONE
Cause: A alarm has occurred on the Sensor Module for encoder 3 that cannot be interpreted by the Control Unit firmware.
This can occur if the firmware on this component is more recent than the firmware on the Control Unit.
Alarm value (r2124, interpret decimal):
Alarm number.
Note:
If required, the significance of this new alarm can be read about in a more recent description of the Control Unit.
Remedy: - replace the firmware on the Sensor Module by an older firmware version (r0148).
- upgrade the firmware on the Control Unit (r0018).
234207 <location>VSM: Temperature fault threshold exceeded
Message value: %1
Drive object: AFE_SINUMERIK_828, BIC_SINUMERIK_828, SIC_COMBI, SIC_SINUMERIK_828
Reaction: OFF2 (NONE, OFF1)
Acknowledge: IMMEDIATELY (POWER ON)
Cause: The temperature (r3666) measured using the Voltage Sensing Module (VSM) has exceeded the threshold value
(p3668).
Note:
This fault can only be initiated if the temperature evaluation was activated (p3665 = 2 for a KTY sensor or p3665 = 1
for a PTC sensor).
Fault value (r0949, interpret decimal):
yyxxxx dec:
yy: Component number of the component which detected the fault.
Remedy: - check the fan.
- reduce the power.
836
Diagnostics Manual, 07/2010, 6FC5398-8BP40-0BA0
Alarms