Siemens SINUMERIK 840Di Diagnostic Manual page 675

11/2006
120006 The channel switchover is currently disabled by area %1.
Parameters: %1 = Operating area name
Definitions: The area %1 has disabled the channel switchover at the moment, as it is performing a critical
operation (e.g. execution from external sources, etc.), during which no channel switchover may occur.
Reaction: Alarm display.
Remedy: Wait until the critical operation is finished or end the critical operation manually.
Program Internal
Continuation:
120007 The channel switchover is currently disabled.
Definitions: The channel switchover is currently disabled, as a critical operation, during which no channel
switchover may occur, is being carried out.
Reaction: Alarm display.
Remedy: Wait until the critical operation is finished or end the critical operation manually.
Program Internal
Continuation:
120008 Control unit switchover, PLC timeout: %1
Parameters: %1 = --
Definitions: 001: MMC would like to go offline from this NCU. MMC has made the offline request in the online PLC
and is waiting for the positive / negative acknowledgement from the PLC.
002: MMC would like to go online to this NCU. MMC has called the target PLC and is waiting for the
release to go online.
003: MMC has requested the active operating mode and is waiting for acknowledgement from the
PLC.
Remedy: Check whether the switchover blocks are loaded and started in the online PLC.
120010 PCU temperature alarm
Definitions: The temperature sensor on the PCU module has reached the response threshold.
Interface bit DB10.DB103.6 will be set.
Remedy: Switch off the PCU and let it cool off.
Improve the ventilation of the PCU module.
Check the function of the fan of the PCU module (fan defect).
If the error is displayed again, please inform the authorized service personnel.
120011 Request for authority to operate from another station.%nTo retain
authority to operate=>Recall key,%nto transfer authority to
operate=>wait (no entry)
Definitions: The operator of another station requests authority to operate. This can be refused to him through
Recall. After approx. 5 seconds, the authority to operate will automatically be transferred to the other
station.
Reaction: Alarm display.
Remedy: The alarm automatically disappears after approx. five seconds or if the Recall key is pressed within
this time limit.
Program Internal
Continuation:
© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
Overview of Alarms
HMI alarms
2-675