Siemens Sinumerik 840D sl Diagnostic Manual page 342

Overview of Alarms
NCK alarms
Remedy: Please inform the authorized personnel/service department.
Check the interface signals DB31, ... DBX2.1 (Servo enable), DB31, ... DBX21.7 (Pulse enable),
check the drive signals DB31, ... DBX93.7 (Pulses enabled), DB31, ... DBX93.5 (Drive ready) for
example with the PLC status display in the DIAGNOSTICS operating area. Check the encoder selec-
tion (for axes) as well as other signals enabling motion (such as SIMODRIVE 611D terminal 663 etc.)
according to the drive type used.
When the terminal enables of the drive have failed, trace back the wiring or hardware function (for
example relay function) or proceed as stated in the relevant drive documentation.
With SAFETY: With active actual-value linkage, output of the error message on the slave axis can be
prevented by increasing MD36060 $MA_STANDSTILL_VELO_TOL (default value is 5 mm).
Program Con- Clear alarm with the Delete key or NC START.
tinuation:
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 Con- Alarm display showing cause of alarm disappears. No further operator action necessary.
tinuation:
21614 [Channel %1: ] Axis %2 hardware limit switch %3
Parameters: %1 = Channel number
%2 = Axis name, spindle number
%3 = String (+, - or +/-)
Definitions: The signal DB31, ... DBX12.1 / 12.0 (Hardware limit switch plus/minus) 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 MD36110 $MA_POS_LIMIT_PLUS, MD36100
$MA_POS_LIMIT_MINUS, MD36130 $MA_POS_LIMIT_PLUS2 and MD36120
$MA_POS_LIMIT_MINUS2 and the NC/PLC interface signal for the selection DB31, ... DBX12.3 /
12.2 (1st/2nd software limit switch plus/minus) and correct, if necessary (PLC user program).
2. If the axis has not yet been referenced, it is possible to depart from the hardware limit switch in the
opposite direction in JOG mode.
3. Check the PLC user program and the connection from the switch to the PLC input module, provided
the axis has not reached the hardware limit switch at all.
Program Con- Clear alarm with the RESET key. Restart part program
tinuation:
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 Con- Clear alarm with the RESET key. Restart part program
tinuation:
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SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
© Siemens AG, 2009. All Rights Reserved
03/2009