Siemens SINUMERIK 840D sl Series Diagnostics Manual page 865

08/2005
Definitions: For the safe end position monitoring, there is a smaller value in the MD for the upper limit
value than in the MD for the lower limit value.
Request: During boot-up of the control.
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 the MDs
• Modify MD 1334: $MD_SAFE_POS_LIMIT_PLUS[n] (upper limit value for safe limit
position) and
• Modify MD 1335: $MD_SAFE_POS_LIMIT_MINUS[n] (lower limit value for safe limit
position)
and modify so that the upper limit value exceeds the lower limit value.
Program Con- Switch control OFF - ON.
tinuation:
300746
Axis %1 drive %2 SBH/SG not enabled
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: In the machine data 1301: $MD_SAFE_FUNCTION_ENABLE (safe functions enable) the
function SBH/SG has not been enabled although the function SE/SN has been selected in
this MD.
Request: During boot-up of the control.
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. Enable the function SBH/SG
via MD 1301: $MD_SAFE_FUNCTION_ENABLE (safe functions enable).
Program Con- Switch control OFF - ON.
tinuation:
300747
Axis %1 drive %2 monitoring cycle time MD 1300 invalid
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: Check and, if necessary, correct MD 1300: $MD_SAFETY_CYCLE_TIME (monitoring
cycle) has not been set as a multiple of the NC position control cycle.
Request: During boot-up of the control.
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. Set the monitoring cycle via
MD 1300 to n * NC position control cycle, n must be >= 1.
© Siemens AG, 2005. All rights reserved
SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
Overview of Alarms
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