Encoder 3: Zero Mark Distance Error; Encoder 3: Zero Marked Failed; Encoder 3: Amplitude Error, Track R - Siemens Sinamics S120 Diagnostic Manual
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233100
<location>Encoder 3: Zero mark distance error
Message value:
%1
Drive object:
SERVO_COMBI, SERVO_SINUMERIK828
Reaction:
OFF1 (IASC/DCBRAKE, NONE, OFF2, OFF3, STOP1, STOP2)
Acknowledge:
PULSE INHIBIT
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).
Fault value (r0949, 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).
- if message output above speed threshold, reduce filter time if necessary (p0438).
- replace the encoder or encoder cable
233101
<location>Encoder 3: Zero marked failed
Message value:
%1
Drive object:
SERVO_COMBI, SERVO_SINUMERIK828
Reaction:
OFF1 (IASC/DCBRAKE, NONE, OFF2, OFF3, STOP1, STOP2)
Acknowledge:
PULSE INHIBIT
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).
Fault value (r0949, 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).
- if message output above speed threshold, reduce filter time if necessary (p0438).
- when p0437.1 is active, check p4686.
- replace the encoder or encoder cable
233103
<location>Encoder 3: Amplitude error, track R
Message value:
R track: %1
Drive object:
SERVO_COMBI, SERVO_SINUMERIK828
Reaction:
OFF1 (IASC/DCBRAKE, NONE, OFF2, OFF3)
Acknowledge:
IMMEDIATELY
Cause:
The amplitude of the reference track signal (track R) does not lie within the tolerance bandwidth for encoder 3.
The fault can be initiated when the unipolar voltage level is exceeded (RP/RN) or if the differential amplitude is under-
shot.
Fault value (r0949, interpret hexadecimal):
xxxx hex:
xxxx = Signal level, track R (16 bits with sign).
The response thresholds of the unipolar signal levels of the encoder are between < 1400 mV and > 3500 mV.
The response threshold for the differential signal level of the encoder is < -1600 mV.
A signal level of 500 mV peak value corresponds to the numerical value 5333 hex = 21299 dec.
Alarms
Diagnostics Manual, 07/2010, 6FC5398-8BP40-0BA0
SINAMICS alarms
805
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