Siemens SINUMERIK 840Di Diagnostic Manual page 386

Overview of Alarms
NCK alarms
21613 Axis %1 measuring system changing
Parameters: %1 = Axis name, spindle number
Definitions: The measuring system for this axis is changing.
Reaction: Alarm display.
Remedy: -
Program Alarm display showing cause of alarm disappears. No further operator action necessary.
Continuation:
21614 Channel %1 axis %2 hardware limit switch %3
Parameters: %1 = Channel number
%2 = Axis name, spindle number
%3 = String (+, - or +/-)
Definitions: The VDI signal "Hardware limit switch" (DB 31 - 48, DBX 12.0 or DBX 12.1) has been set at the
NC/PLC interface.
Reaction: NC Start disable in this channel.
Alarm display.
Remedy: Please inform the authorized personnel/service department.
1. With axes that have already been referenced, the software limit switch 1 or 2 should respond before
the hardware limit switch is reached. Check MD 36110 POS_LIMIT_PLUS, 36100
POS_LIMIT_MINUS, 36130 POS_LIMIT_PLUS2 and 36120 POS_LIMIT_MINUS2 and the interface
signal for selection of 1st/2nd software limit switch (DB 31 - 48, DBX 12.2 and 12.3) and correct if
necessary (PLC user program).
2. If the axis has not yet been moved to the reference point, it is possible to depart from the hardware
limit switch in the opposite direction in JOG mode.
3. Check PLC user program and the connection from the switch to the PLC input module, provided
the axis has not yet reached the hardware limit switch at all.
Program Clear alarm with the RESET key. Restart part program
Continuation:
21615 Channel %1 axis %2 taken from traverse mode to follow-up mode
Parameters: %1 = Channel number
%2 = Axis name, spindle number
Definitions: This axis has been taken from traverse mode and put into "Follow-up" mode, for instance because the
pulse enable for the drive has been reset.
Reaction: NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy: -
Program Clear alarm with the RESET key. Restart part program
Continuation:
21616 Channel %1 block %2 overlaid motion active at transformation
switchover
Parameters: %1 = Channel number
%2 = Block number, label
Definitions: The overlaid motion in the BCS changes its significance because of the transformation change and
can therefore lead to undesired axis movements.
Reaction: Local alarm reaction.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy: Take out the overlaid movement.
Program Clear alarm with NC START or RESET key and continue the program.
Continuation:
2-386
© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
11/2006