Siemens SINUMERIK 840Di Diagnostic Manual page 783

11/2006
310610 Axis %1 drive %2 wrong piston position
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: The error is triggered if the actual position of the drive is negative.
Cause:
- Incorrect counting direction of actual position on drive side.
- Incorrect piston zero alignment.
- If the drive is referenced and the offset between the piston zero (piston stop at A side) and the
machine zero is entered in MD 5040, the piston position in MD 5741 can only indicate positive values
(from zero to piston stroke length).
Reaction: 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.
Remedy: The counting direction for the actual position is correct on the drive side if:
1. Pos. setpoint voltage (e.g. function generator) -> cylinder piston travels from A to B. If not: Invert
the actuation signal (change MD 5476 bit 0).
2. Cylinder piston travels from A to B -> v_act (MD 5707) > 0. If not: Invert the actual value (change
MD 5011 bit 0).
Check the piston zero alignment and correct if necessary:
Set MD 5012 bit 14 and bit 15 to zero, save bootfile, reset NCK, perform a reference point approach
and then align the position.
Program Clear alarm with the RESET key in all channels of this mode group. Restart part program.
Continuation:
310611 Axis %1 drive %2 pressure sensor failed
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: Power limitation or friction compensation is activated: Modify MD 5241: bit 0 or bit 1 is set and both
actual pressure values are less than 2% of the system pressure in MD 5101: WORKING_PRESSURE
on performance enable.
Cause: Pressure sensor or connecting cable defective.
Reaction: 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.
Remedy: Check the connection of both pressure sensors.
If no pressure sensors are installed:
- Deactivate the force limitation: Modify MD 5241: reset bit 0
- Deactivate friction compensation: Modify MD 5241: reset bit 1
Program Clear alarm with the RESET key in all channels of this mode group. Restart part program.
Continuation:
© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
Overview of Alarms
SIMODRIVE alarms
2-783