Siemens SINUMERIK 840D Diagnostics Manual page 600

1 Alarms
300780
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
300781
Parameters:
Definitions:
Reactions:
Remedy:
Program Continuation:
300782
Parameters:
1-600
Axis %1 drive %2 zero load current > rated motor current
%1 = NC axis number
%2 = Drive number
The no-load current of the motor (MD 1136: $MD_MOTOR_NOLOAD_CURRENT) has
been set at a greater value than the rated current of the motor (MD 1103:
$MD_MOTOR_NOMINAL_CURRENT).
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, refer to the motor data sheet to cor-
rect machine data MD 1103: $MD_MOTOR_NOMINAL_CURRENT (nominal motor cur-
rent) and MD 1136: $MD_MOTOR_NOLOAD_CURRENT (motor no-load current).
Clear alarm with the RESET key in all channels. Restart part program.
Axis %1 drive %2 zero load current > rated current of power section
%1 = NC axis number
%2 = Drive number
On the basis of its no-load current (MD 1136: $MD_MOTOR_NOLOAD_CURRENT
(motor no-load current), the connected motor is too large for the power section in use
(continuous thermal current MD 1108: $MD_INVERTER_MAX_THERMAL_CORR (cur-
rent limit for power section).
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 the authorized personnel/service department.
1. Reset the drive (delete the bootfile) and repeat the startup.
2. Check the configuration and install a suitable power section for the motor. Repeat the
startup.
Clear alarm with the RESET key in all channels. Restart part program.
Axis %1 drive %2 reactance less than or equal to zero
%1 = NC axis number
%2 = Drive number
 Siemens AG, 2004. All rights reserved
SINUMERIK 840D/840Di/810D Diagnostics Guide (DA), 10.04 Edition
10.04