Siemens SINUMERIK 840D sl Series Diagnostics Manual page 333

08/2005
tion, one reversal point was shifted against the oscillating direction beyond the other
reversal point. The axis is not traversed.
Reactions: - Local alarm reaction.
- NC Start disable in this channel.
- Interface signals are set.
- Alarm display.
- NC Stop on alarm.
Remedy: Specify correct target position (reversal position, end position).
Program Con- Clear alarm with the RESET key. Restart part program
tinuation:
20080
Channel %1 axis %2 no handwheel assigned for overlaid motion
Parameters: %1 = Channel number
%2 = Axis number
Definitions: No handwheel has been assigned for this specified axis after handwheel overlay has
been started in automatic mode. If the axis identifier is missing in the alarm with active
velocity overlay FD > 0, then the 1st geometry axis has not been defined in the NC chan-
nel. In this case the block is executed without handwheel control.
Reactions: - Alarm display.
Remedy: If handwheel control is required, a handwheel must be activated.
Program Con- Alarm display showing cause of alarm disappears. No further operator action necessary.
tinuation:
20081
Channel %1 axis %2 braking position cannot be accepted as a new reversing posi-
tion
Parameters: %1 = Channel number
%2 = Axis number
Definitions: On changing the reciprocation reversal from external sources, the braking position cannot
be accepted as a new reversing position, since changing the reversal point via handwheel
or JOG key is active.
Reactions: - Alarm display.
Remedy: Deselect VDI signal "Change reversal point" and reselect it either
• with "Reciprocation reversal from external sources" or
• by changing the reversal point by means of handwheel or
• by changing the reversal point via JOG key.
Program Con- Alarm display showing cause of alarm disappears. No further operator action necessary.
tinuation:
20085
Channel %1 contour handwheel: traverse direction or overtravel of beginning of
block not allowed
Parameters: %1 = Channel number
Definitions: Travel takes place on the path with the contour handwheel in the opposite direction to the
programmed travel direction and the starting point of the path has been reached at the
start of the block.
Reactions: - Alarm display.
Remedy: Turn the contour handwheel in the opposite direction.
Program Con- Alarm display showing cause of alarm disappears. No further operator action necessary.
tinuation:
20090
Axis %1 travel to fixed stop not possible. Check programming and axis data.
Parameters: %1 = Axis name, spindle number
© Siemens AG, 2005. All rights reserved
SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
Overview of Alarms
2-333