Siemens SINUMERIK 840D sl Series Diagnostics Manual page 434

Overview of Alarms
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 Con- Switch control OFF - ON.
tinuation:
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 syn-
chronized via their own NCU-link clock line. A large number of cycle signals are missing.
The parameter indicates how many cycles have failed.
Reactions: - 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 Con- Switch control OFF - ON.
tinuation:
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.
Reactions: - 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 contain-
ers.
Machine data to be changed:
• $MN_AXCONF_LOGIC_MACHAX_TAB
• $MN_AXCT_AXCONF_ASSIGN_TAB1 ... and all further container def.
Program Con- Switch control OFF - ON.
tinuation:
28030
Serious alarm on NCU %1, axes in follow-up mode
Parameters: %1 = NCU number
Definitions: All axes are trailing because of a serious alarm on another NCU.
Reactions: - NC not ready.
- Mode group not ready, also effective for single axes
- NC Start disable in this channel.
- Interface signals are set.
- Alarm display.
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SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
© Siemens AG, 2005. All rights reserved
08/2005