Siemens SINUMERIK 840Di Diagnostic Manual page 489

11/2006
28011 IPO time insufficient for NCU link. Link cycle time: %1
Parameters: %1 = Microseconds
Definitions: Error message of the NCU link module. All messages must be transmitted within one interpolator
cycle. This applies particularly to message retries. The time was not sufficient! The parameter
indicates how many microseconds the NCU link module needs in order to send the message.
Reaction: NC not ready.
Channel not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy: Increase the interpolator cycle time, i.e. modify one of the following MDs on all NCUs.
IPO_SYSCLOCK_TIME_RATIO
SYSCLOCK_CYCLE_TIME
Program Switch control OFF - ON.
Continuation:
28012 NCU link: synchronization cycle signal failure %1 times
Parameters: %1 = Number of cycles
Definitions: Error message of the NCU link module that does not occur at NCU 1. The NCU's are synchronized
via their own NCU-link clock line. A large number of cycle signals are missing. The parameter
indicates how many cycles have failed.
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 hardware.
Program Switch control OFF - ON.
Continuation:
28020 NCU link: too many link axes configured %1
Parameters: %1 = Number of link axis connections
Definitions: Unfortunately, the communication capacity of the NCU link is insufficient for this link axis configuration.
The link axis configuration is determined by the following MDs:
- $MN_AXCONF_LOGIC_MACHAX_TAB
- $MN_AXCT_AXCONF_ASSIGN_TAB1 ... and all further container def.
Reaction: NC not ready.
Channel not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy: Connect a smaller number of axes across the link or combine the axes in fewer containers.
Machine data to be changed:
- $MN_AXCONF_LOGIC_MACHAX_TAB
- $MN_AXCT_AXCONF_ASSIGN_TAB1 ... and all further container def.
Program Switch control OFF - ON.
Continuation:
© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
Overview of Alarms
NCK alarms
2-489