Siemens SINUMERIK 840D sl Series Diagnostics Manual page 880

Overview of Alarms
300774
Axis %1 drive %2 asynchronous mode: changeover speed invalid
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: In mixed operation MSD/AM (MD 1465 > 0) only closed-loop controlled AM mode is
allowed (MD1466 <= MD1465).
• Modify MD 1465: $MD_SWITCH_SPEED_MSD_AM (switchover speed MSD/AM)
• Modify MD 1466: $MD_SWITCH_SPD_OPEN_LOOP_AM (switchover speed closed-
loop/open-loop control AM)
The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY
(channel not ready).
Reactions: - NC 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.
Rectify error by selecting pure AM mode (MD1465 = 0) or by deselecting the AM-con-
trolled mode (MD1466 < MD1465).
• Modify MD 1465: $MD_SWITCH_SPEED_MSD_AM (switchover speed MSD/AM)
• Modify MD 1466: $MD_SWITCH_SPD_OPEN_LOOP_AM (switchover speed closed-
loop/open-loop control AM)
Program Con- Clear alarm with the RESET key in all channels. Restart part program.
tinuation:
300775
Axis %1 drive %2 fixed link voltage of axes differ
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: An unequal fixed voltage MD1161: $MD_FIXED_LINK_VOLTAGE (DC link fixed voltage)
has been found for axes of a drive module. Since a fixed voltage <> 0 replaces the mea-
sured DC link voltage value, but the DC link voltage value is measured only once for all
axes of a drive module, the fixed voltage must be identical on all module axes before it is
accepted.
The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY
(channel not ready).
Reactions: - NC 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. Set the same fixed voltage
(MD 1161) on all module axes. $MD_FIXED_LINK_VOLTAGE (DC link fixed voltage) has
been found for axes of a drive module.
Program Con- Clear alarm with the RESET key in all channels. Restart part program.
tinuation:
2-880
SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
© Siemens AG, 2005. All rights reserved
08/2005