Si Mm Mm: Defect In A Monitoring Channel - Siemens Sinamics S120 Diagnostic Manual
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230711
<location>SI MM MM: Defect in a monitoring channel
Message value:
%1
Drive object:
SERVO_COMBI, SERVO_SINUMERIK828
Reaction:
NONE
Acknowledge:
IMMEDIATELY (POWER ON)
Cause:
When cross-checking and comparing the two monitoring channels, the drive detected a difference between the input
data or results of the monitoring functions and initiated a STOP F. One of the monitoring functions no longer reliably
functions - i.e. safe operation is no longer possible.
If at least one monitoring function is active, then after the parameterized timer has expired, the message C30701 "SI
Motion: STOP B initiated" is output. The message is output with message value 1031 when the Sensor Module hard-
ware is replaced.
The following message values may also occur in the following cases if the cause that is explicitly mentioned does not
apply:
- differently parameterized cycle times (p9500/p9300, p9511/p9311).
- differently parameterized axis types (p9502/p9302).
- excessively fast cycle times (p9500/p9300, p9511/p9311).
- incorrect synchronization.
Message value (r9749, interpret decimal):
0 ... 999: Number of the cross-checked data that resulted in this message. Refer to safety message C01711for a
description of the individual data.
The significance of the individual message values is described in safety message C01711 of the Control Unit.
1000: Watchdog timer has expired. Too many signal changes have occurred at safety-relevant inputs.
1001: Initialization error of watchdog timer.
1005: Pulses already suppressed for test stop selection.
1011: Acceptance test status between the monitoring channels differ.
1012: Plausibility violation of the actual value from the encoder.
1020: Cyc. communication failure between the monit. cycles.
1021: Cyc. communication failure between the monit. channel and Sensor Module.
1023: Error in the effectiveness test in the DRIVE-CLiQ encoder
1030: Encoder fault detected from another monitoring channel.
1031: Data transfer error between the monitoring channel and the Sensor Module (p9526/p9326).
1040: Pulses suppressed with active encoderless monitoring functions.
1041: Current absolute value too low (encoderless)
1042: Current/voltage plausibility error
1043: Too many acceleration phases
1044: Actual current values plausibility error.
5000 ... 5140: PROFIsafe message values.
The significance of the individual message values is described in safety message C01711 of the Control Unit.
6000 ... 6166: PROFIsafe message values (PROFIsafe driver for PROFIBUS DP V1/V2 and PROFINET).
The significance of the individual message values is described in safety message C01711 of the Control Unit.
See also: p9555 (SI Motion transition time STOP F to STOP B (Control Unit)), r9725 (SI Motion, diagnostics STOP F)
Remedy:
Re message value = 1030:
- check the encoder connection.
- if required, replace the encoder.
Re message value = 1031:
When replacing a Sensor Module, carry out the following steps:
- start the copy function for the node identifier on the drive (p9700 = 1D hex).
- acknowledge the hardware CRC on the drive (p9701 = EC hex).
- save all parameters (p0977 = 1).
- carry out a POWER ON (power off/on) for all components.
The following always applies:
- check the encoder connection.
- if required, replace the encoder.
Alarms
Diagnostics Manual, 07/2010, 6FC5398-8BP40-0BA0
SINAMICS alarms
725
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