Siemens SINUMERIK 840D sl Series Diagnostics Manual page 391

08/2005
Remedy: $MA_SPIND_ON_SPEED_AT_IPO_START = 1. Program G09 before the alarm output in
the block to allow the path interpolation to stop as planned.
Program Con- Clear alarm with the Delete key or NC START.
tinuation:
26052
Channel %1 in block %2: path velocity too high for auxiliary function output
Parameters: %1 = Channel number
%2 = Block number, label
Definitions: This alarm usually occurs in a block with auxiliary function output during a movement. In
this case, the wait for acknowledgement of the auxiliary function was longer than planned.
The alarm occurs if internal control inconsistencies cause continuous path mode (G64,
G641, ...) to be blocked unexpectedly.
The path interpolation stops abruptly at the end of the block indicated in the message
(regenerative stop). On the next block change, the path continues unless the abrupt stop
has caused an error in the position controller (e.g. because the $MA_CONTOUR_TOL
setting was over-sensitive).
Reactions: - Alarm display.
Remedy: • If the alarm occurred in a block with auxiliary function output during the movement: from
SW 5.1 or higher, increase machine $MN_PLC_CYCLE_TIME_AVERAGE or
• Program G09 in the block indicated in the message to allow the path interpolation to
stop as planned.
Program Con- Clear alarm with the Delete key or NC START.
tinuation:
26070
Channel %1 axis %2 cannot be controlled by the PLC, max. number exceeded
Parameters: %1 = Channel number
%2 = Axis name, spindle number
Definitions: An attempt has been made to control more axes than allowed from the PLC.
Reactions: - Interface signals are set.
- Alarm display.
Remedy: Check the machine data MD_NUM_MAX_PLC_CNTRL_AXES and correct if necessary
or reduce the number of PLC-controlled axes.
Program Con- Clear alarm with the Delete key or NC START.
tinuation:
26072
Channel %1 axis %2 cannot be controlled by the PLC
Parameters: %1 = Channel number
%2 = Axis name, spindle number
Definitions: Axis cannot be made a PLC-controlled axis. For the time being, the axis cannot be con-
trolled at any state from the PLC.
Reactions: - Interface signals are set.
- Alarm display.
Remedy: Use Release or Waitp to make the axis a neutral one.
Program Con- Clear alarm with the Delete key or NC START.
tinuation:
26074
Channel %1 switching off PLC control of axis %2 not allowed in the current state
Parameters: %1 = Channel
%2 = Axis, spindle
Definitions: The PLC can return the control rights for an axis to program processing only, if there is no
alarm pending for the axis.
Reactions: - Interpreter stop
© Siemens AG, 2005. All rights reserved
SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
Overview of Alarms
2-391