Siemens SINUMERIK 840D Series Diagnostics Manual page 370

1 Alarms
Reactions:
Remedy:
Program Continuation:
27256
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
27299
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
28000
Definitions:
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- Mode group not ready.
- NC Start disable in this channel.
- Interface signals are set.
- Alarm display.
- NC Stop on alarm.
Check wiring.
Clear alarm with the RESET key. Restart part program
PROFIsafe: Current cycle time %1 [ms] > parameterized cycle time
%1 = Current PROFIsafe communication cycle time
The current PROFIsafe communication cycle time is greater than the value set via MD
$MN_PROFISAFE_IPO_TIME_RATIO. The parameterized PROFIsafe communication
cycle time is continually exceeded on the PLC side.
- Mode group not ready.
- NC Start disable in this channel.
- Interface signals are set.
- Alarm display.
- NC Stop on alarm.
Adapt cycle time via MD $MN_PROFISAFE_IPO_TIME_RATIO.
The displayed value, at least, has to be set.
The set cycle time affects the runtime load of the PLC module. This also has to be taken
into consideration when making the setting.
Clear alarm with the RESET key. Restart part program
PROFIsafe: Diagnosis %1 %2 %3 %4
%1 = Error code 1
%2 = Error code 2
%3 = Error code 3
%4 = Error code 4
Internal error in the NCK PROFIsafe implementation.
- Alarm display.
Make a note of the error text and contact Siemens A&D MC, Hotline
• Tel 0180 / 5050 - 222 (Germany)
• Fax 0180 / 5050 - 223
• Tel +49-180 / 5050 - 222 (International)
• Fax +49-180 / 5050 - 223
• email techsupport@ad.siemens.de
Clear alarm with the Delete key or NC START.
NCU link connection to all other NCUs of the link network has been aborted
All NCUs in the NCU link network exchange data cyclically (sign-of-life). If this alarm
occurs, sign-of-life signals have not been received from any other NCUs on the NCU net-
work. This fault in the link can have various causes:
• Defective hardware.
• The machine data which configure the NCU link are not the same on all NCUs.
• An identical interpolator cycle time has not been selected on all NCUs.
SINUMERIK 840D/840Di/810D Diagnostics Guide (DA) – 11.02 Edition
 Siemens AG, 2002. All rights reserved
11.02