Encoder 3: Analog Sensor Channel B Failed; Encoder 3: Alarm Threshold Zero Mark Distance Error; Encoder 3: Alarm Threshold Zero Marked Failed - Siemens Sinamics S120 Diagnostic Manual

SINAMICS alarms
233161 <location>Encoder 3: Analog sensor channel B failed
Message value: %1
Drive object: SERVO_COMBI, SERVO_SINUMERIK828
Reaction: ENCODER (IASC/DCBRAKE, NONE)
Acknowledge: PULSE INHIBIT
Cause: The input voltage of the analog sensor is outside the permissible limits.
Fault value (r0949, interpret decimal):
1: Input voltage outside detectable measuring range.
2: Input voltage outside measuring range set in p4675.
3: The absolute value of the input voltage has exceeded the range limit (p4676).
Remedy: Re fault value = 1:
- check the output voltage of the analog sensor.
Re fault value = 2:
- check the voltage setting for each encoder period (p4675).
Re fault value = 3:
- check the range limit setting and increase it if necessary (p4676).
233400 <location>Encoder 3: Alarm threshold zero mark distance error
Message value: %1
Drive object: SERVO_COMBI, SERVO_SINUMERIK828
Reaction: NONE
Acknowledge: NONE
Cause: The measured zero mark distance does not correspond to the parameterized zero mark distance.
For distance-coded encoders, the zero mark distance is determined from zero marks detected pairs. This means that
if a zero mark is missing, depending on the pair generation, this cannot result in a fault and also has no effect in the
system.
The zero mark distance for the zero mark monitoring is set in p0425 (rotary encoder) or p0424 (linear encoder).
Alarm value (r2124, interpret decimal):
Last measured zero mark distance in increments (4 increments = 1 encoder pulse).
The sign designates the direction of motion when detecting the zero mark distance.
Remedy: - check that the encoder cables are routed in compliance with EMC.
- check the plug connections
. check the encoder type (encoder with equidistant zero marks).
- adapt the parameter for the distance between zero marks (p0424, p0425).
- replace the encoder or encoder cable
233401 <location>Encoder 3: Alarm threshold zero marked failed
Message value: %1
Drive object: SERVO_COMBI, SERVO_SINUMERIK828
Reaction: NONE
Acknowledge: NONE
Cause: The 1.5 x parameterized zero mark distance was exceeded.
The zero mark distance for the zero mark monitoring is set in p0425 (rotary encoder) or p0424 (linear encoder).
Alarm value (r2124, interpret decimal):
Number of increments after POWER ON or since the last zero mark that was detected (4 increments = 1 encoder
pulse).
Remedy: - check that the encoder cables are routed in compliance with EMC.
- check the plug connections
. check the encoder type (encoder with equidistant zero marks).
- adapt the parameter for the clearance between zero marks (p0425).
- replace the encoder or encoder cable
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Diagnostics Manual, 07/2010, 6FC5398-8BP40-0BA0
Alarms