Siemens SINUMERIK 840D sl Series Diagnostics Manual page 900

Overview of Alarms
Reactions: - Mode group not ready.
- Channel not ready.
- NC Start disable in this channel.
- Interface signals are set.
- Alarm display.
- NC Stop on alarm.
Remedy: Please inform the authorized personnel/service department. Check and, if necessary, cor-
rect MDs 1011: $MD_ACTUAL_VALUE_CONFIG (actual value sensing configuration IM),
1040, 1041 and 1042.
Program Con- Switch control OFF - ON.
tinuation:
301706
Axis %1 drive %2 parameterization of cam position invalid
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: At least one of the parameterized cams enabled via MD 1301:
$MD_SAFE_FUNCTION_ENABLE (safe functions enable) does not comply with the rule
stating that cam positions are not allowed to be within the tolerance range around the
modulo position.
The valid tolerance range is:
With inactive cam synchronization (MD 1301 bit 7 = 0):
Lower modulo value + POS_TOL <= cam position
Upper modulo value - POS_TOL > cam position
With active cam synchronization (MD 1301 bit 7 = 1):
Lower modulo value + POS_TOL <= cam position
Upper modulo value - POS_TOL - CAM_TOL > cam position
Explanations:
• POS_TOL: Actual value tolerance (MD 1342: $MD_SAFE_POS_TOL (actual value tol-
erance cross-comparison))
• CAM_TOL: Cam tolerance (MD 1340: $MD_SAFE_CAM_TOL (tolerance for safe
cams))
• Upper/lower modulo value: is determined by MD 1305: $MD_SAFE_MODULO_RANGE
(actual value range for safe cam with rotary axes)
Reactions: - Mode group not ready.
- Channel not ready.
- NC Start disable in this channel.
- Interface signals are set.
- Alarm display.
- NC Stop on alarm.
Remedy: Please inform the authorized personnel/service department.
Check parameterization of the cam positions in
• Modify MD 1336: $MD_SAFE_CAM_POS_PLUS (plus cam position for safe cam) and
• Modify MD 1337: $MD_SAFE_CAM_POS_MINUS (minus cam position for safe cam)
and perform POWER ON.
• Modify MD 1305: $MD_SAFE_MODULO_RANGE (actual value range for safe cam with
rotary axes).
Program Con- Switch control OFF - ON.
tinuation:
301707
Axis %1 drive %2 parameterization of modulo value for safe cam (SN) invalid
Parameters: %1 = NC axis number
2-900
SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
© Siemens AG, 2005. All rights reserved
08/2005