Siemens SINUMERIK 840D Diagnostics Manual page 556

1 Alarms
Definitions:
Reactions:
Remedy:
Program Continuation:
300512
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
300515
Parameters:
Definitions:
Reactions:
1-556
The measuring function (e.g. frequency response measurement was active during the
switching on operation (power supply start-up active). Illegal activation of the measuring
function may have occurred internally.
- 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.
- Channel not ready.
• Stop the measuring function
• NCK reset
Switch control OFF - ON.
Axis %1 drive %2 direct feedback recognized
%1 = NC axis number
%2 = Drive number
The current rotor position and the position information read out by the encoder on ramp-
up were compared with each other and a deviation of more than 45 degrees was found.
- 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.
- Channel not ready.
• The deviation points to a local contamination of the encoder or an erroneous or loose
encoder assembly. The encoder must be examined accordingly.
Operation may commence again only after successful error correction as there is a risk of
uncontrollable movements!
• NCK reset
Switch control OFF - ON.
Axis %1 drive %2 power section heat sink temperature exceeded
%1 = NC axis number
%2 = Drive number
The temperature of the power section is acquired from a temperature switch on the heat-
sink. 20 seconds after the heatsink temperature warning, drive shutdown is initiated
immediately in order to avoid thermal damage to the power section (regenerative stop).
- Mode group 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.
- Channel not ready.
 Siemens AG, 2004. All rights reserved
SINUMERIK 840D/840Di/810D Diagnostics Guide (DA), 10.04 Edition
10.04