Siemens Sinumerik 840D sl Diagnostic Manual page 450

Overview of Alarms
NCK alarms
28002 Error on activation of machine data, NCU network-wide machine data
were modified by NCU %1
Parameters: %1 = NCU number
Definitions: During the activation of machine data with NEWCONFIG or during an operator panel RESET, NCU
network-wide machine data were modified on another NCU. This alarm can only occur when a link
connection is active.
Reaction: NC not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy: Repeat the operator action or, if NEWCONFIG is activated by an NC program, terminate the program
with Reset.
Program Con- Clear alarm with the RESET key. Restart part program
tinuation:
28004 NCU link: NCU %1 of the link network is not on the bus
Parameters: %1 = NCU number
Definitions: Error message of the NCU link module. When the NCU link was powered up, the local NCU (indicated
by the alarm) detected that the NCU with the number in the alarm parameter was not on the bus
although it should be connected according to the MD settings.
This fault in the link can have various causes:
- Defective hardware.
- The machine data which configure the NCU link are not identical on all NCUs.
- An identical interpolator cycle time has not been selected on all NCUs.
Reaction: NC not ready.
Channel not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy: Check the machine data configuration and link hardware.
Program Con- Switch control OFF - ON.
tinuation:
28005 NCU link: NCU %1 of the link network not running synchronously
Parameters: %1 = NCU number
Definitions: Error message of the NCU link module. When the NCU link was powered up, the local NCU (indicated
by the alarm) detected that the NCU with the number in the alarm parameter was not running synchro-
nously.
This fault in the link can have various causes:
- The machine data which configure the NCU link are not identical on all NCUs.
- An identical interpolator cycle time has not been selected on all NCUs.
Reaction: NC not ready.
Channel not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy: Check machine data configuration.
Program Con- Switch control OFF - ON.
tinuation:
2-450
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
© Siemens AG, 2009. All Rights Reserved
03/2009