Siemens SINUMERIK 840Di Diagnostic Manual page 421

11/2006
26003 Axis %1 parameterization error: lead screw pitch
Parameters: %1 = Axis name, spindle number
Definitions: The pitch of the ballscrew/trapezoidal leadscrew set in the axis-specific machine data 31030
LEADSCREW_PITCH is zero.
The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY (channel not
ready).
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: Determine the leadscrew pitch (specify the machine manufacturer or pitch measurement with spindle
cover removed) and enter it in the machine data 31030: LEADSCREW_PITCH (mostly 10 or 5
mm/rev.).
Program Switch control OFF - ON.
Continuation:
26004 Axis %1 encoder %2 parameterization error: grid point distance with
linear encoders
Parameters: %1 = Axis name, spindle number
%2 = Encoder number
Definitions: The scale division of the linear scale set in the axis-specific MD 31010 ENC_GRID_POINT_DIST is
zero or differs from the corresponding drive parameters.
The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY (channel not
ready).
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: Please inform the authorized personnel/service department. Enter the encoder grid point distance
according to the data given by the machine (or measuring device) manufacturer in the machine data
31010 ENC_GRID_POINT_DIST.
Program Switch control OFF - ON.
Continuation:
© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
Overview of Alarms
NCK alarms
2-421