Siemens SINUMERIK 840D sl Series Diagnostics Manual page 668

Overview of Alarms
Remedy: - check the physical bus configuration (terminating resistor, shielding, etc.).
- check the interconnection of the master sign-of-life (p2045).
- check whether the master correctly sends the sign-of-life (e.g. set-up a trace with
STW2.12 ... STW2.15 and trigger signal ZSW1.3).
- check the permissible telegram failure rate (p0925).
- check the bus and master for utilization level (e.g. bus cycle time Tdp was set too short).
201913 <location>COMM INT: Monitoring time, sign-of-life expired
Reaction: OFF1 (NONE, OFF2, OFF3)
Acknowledge: IMMEDIATELY
Cause: The monitoring time for the sign-of-life counter has expired.
Remedy: - acknowledge faults that are present.
- carry-out a POWER ON (power off/on) for all components.
- upgrade the firmware release.
- contact the Hotline.
201914 <location>COMM INT: Monitoring time, configuration expired
Reaction: OFF1 (NONE, OFF2, OFF3)
Acknowledge: IMMEDIATELY
Cause: The monitoring time for the configuration has expired.
Fault value (r0949, decimal):
0: The transfer of the send-configuration data has been exceeded (time).
1: The transfer of the receive-configuration data has been exceeded (time).
Remedy: - acknowledge faults that are present.
- carry-out a POWER ON (power off/on) for all components.
- upgrade the firmware release.
- contact the Hotline.
201920 <location>PROFIBUS: Interruption, cyclic connection
Reaction: NONE
Acknowledge: NONE
Cause: The cyclic connection to the PROFIBUS master is interrupted.
Remedy: Set up the PROFIBUS connection and activate the PROFIBUS master in the cyclic mode.
201921 <location>PROFIBUS: Clock cyc synchron
Reaction: NONE
Acknowledge: NONE
Cause: Output data of PROFIBUS master (setpoints) received at the incorrect instant in time within
the PROFIBUS clock cycle.
Remedy: Check the bus configuration:
- parameters for clock synchronization: Ensure the instant in time for setpoint acceptance
To > data exchange time Tdx
201930 <location>PROFIBUS: Current controller clock cycle for clock
synchronous operation, not the same
Reaction: NONE
Acknowledge: NONE
Cause: The current controller clock cycle of all drives must be set the same for the clock
synchronous PROFIBUS.
Alarm value (r2124, decimal):
Number of the drive object with the different current controller clock cycle.
Remedy: - set current controller clock cycles to identical values (p0115[0]).
See also: p0115
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SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
© Siemens AG, 2005. All rights reserved
08/2005