Siemens SINUMERIK 840D Diagnostics Manual page 602

1 Alarms
300784
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
300785
Parameters:
Definitions:
1-602
Axis %1 drive %2 zero load voltage invalid
%1 = NC axis number
%2 = Drive number
Error in the no-load voltage (MD 1135):
• MD 1135 <= 0 or
• MD 1135 > MD 1132 or
• MD 1135 x MD 1142/MD 1400 + Uvor > 450V.
• Where
• Uvor = 0.181 x MD 1136 x MD 1142 x MD 1119
• Modify MD 1135: $MD_MOTOR_NOLOAD_VOLTAGE (motor no-load voltage)
• Modify MD 1132: $MD_MOTOR_NOMINAL_VOLTAGE (rated motor voltage)
• Modify MD 1400: $MD_MOTOR_RATED_SPEED (rated motor speed)
• Modify MD 1142: $MD_FIELD_WEAKENING_SPEED (threshold speed for field weak-
ening)
• Modify MD 1136: $MD_MOTOR_NOLOAD_CURRENT (motor no-load current)
• Modify MD 1119: $MD_SERIES_INDUCTANCE (series reactor inductance)
The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY
(channel not ready).
- 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.
Please inform authorized personnel / the service department.
For standard motors: Execute a general drive reset (delete the boot file) and repeat the
startup.
For non-Siemens motors: Check and, if necessary, correct the following machine data
with reference to the data sheet:
• Modify MD 1132: $MD_MOTOR_NOMINAL_VOLTAGE (nominal motor voltage)
• Modify MD 1135: $MD_MOTOR_NOLOAD_VOLTAGE (motor no-load voltage)
• Modify MD 1400: $MD_MOTOR_RATED_SPEED (rated motor speed)
• Modify MD 1142: $MD_FIELD_WEAKENING_SPEED (threshold speed for field weak-
ening)
• Modify MD 1136: $MD_MOTOR_NOLOAD_CURRENT (motor no-load current).
• Call SIEMENS AG, SIMODRIVE Hotline.
Clear alarm with the RESET key in all channels. Restart part program.
Axis %1 drive %2 zero load current less than or equal to zero
%1 = NC axis number
%2 = Drive number
The value in MD 1136: $MD_MOTOR_NOLOAD_CURRENT (motor no-load current) is
less than or equal to zero.
The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY
(channel not ready).
 Siemens AG, 2004. All rights reserved
SINUMERIK 840D/840Di/810D Diagnostics Guide (DA), 10.04 Edition
10.04