Program Continuation:

Drive power failure

In one or several (all) drive modules, there is a power failure although power was previously available. (The timeout is checked for write/read accesses. Timeouts are interpreted as power failure because this is the most probable case. The test takes place in the cyclic mode only but not at system power-up.)

Since the drives in the SINUMERIK 840D and the NC-CPU have the same power supply, this error does not occur here because then the NCU is also without power supply. In the SINUMERIK FM-NC, this error can arise because the power supply is separate.

-    NC not ready.

-    The NC switches to follow-up mode.

-    Channel not ready.

-    NC Start disable in this channel.

-    Interface signals are set.

-    Alarm display.

-    NC Stop on alarm.

Switch off the power to the system and switch on again - the drives start up again.

Clear alarm with the RESET key in all channels. Restart part program.


© Siemens AG 2005 All Rights Reserved