Siemens SINUMERIK 840D Series Diagnostics Manual page 49

11.02
4240
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
4250
Definitions:
Reactions:
Remedy:
Program Continuation:
4252
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
4254
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
 Siemens AG, 2002. All rights reserved
SINUMERIK 840D/840Di/810D Diagnostics Guide (DA) – 11.02 Edition
Runtime overflow for IPO cycle or position controller cycle, IP %1
%1 = Program location
The settings for the interpolation and position control cycle were modified before the last
power-up such that too little computing time is now available for the requisite cyclic task.
The alarm occurs immediately after power-up if too little runtime is available even when
the axes are stationary and the NC program has not started. However, task overflow can
occur only when computation-intensive NC functions are called during program execu-
tion.
- NC not ready.
- Mode group not ready, also effective for single axes
- Alarm reaction delay is canceled.
- NC Start disable in this channel.
- NC Stop on alarm.
- The NC switches to follow-up mode.
- Alarm display.
- Interface signals are set.
Please inform the authorized personnel/service department. Take greater care when opti-
mizing the clock times NCK MD 10050 SYSCLOCK_CYCLE_TIME, MD 10060
POSCTRL_SYSCLOCK_TIME_RATIO and/or MD 10070
IPO_SYSCLOCK_TIME_RATIO.
The test should be performed with an NC program that represents the worst case. For
safety, a margin of 15 to 25% should be added to the times determined in this way.
Switch control OFF - ON.
FastPlcCom functionality not available
This alarm indicates that the PLC provides the None FastPlcCom functionality during
start-up although this functionality is requested by the NCK.
- Alarm display.
Retrofit the PLC with the FastPlcCom functionality or deactivate the FastPlcCom function-
ality by means of NCK machine data.
Clear alarm with the RESET key. Restart part program
PLCIO read error: %1
%1 = PLCIO error code
This alarm indicates that errors occured when reading the PLCIO with the FastPlcCom
functionality.
- Alarm display.
Correct the machine data or check the PLC hardware configuration.
Clear alarm with the RESET key. Restart part program
PLCIO write error: %1
%1 = PLCIO error code
This alarm indicates that errors occured when writing on the PLCIO with the FastPlcCom
functionality.
- Alarm display.
Correct the machine data or check the PLC hardware configuration.
Clear alarm with the RESET key. Restart part program
1 Alarms
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