Siemens SINUMERIK 840D sl Series Diagnostics Manual page 883

08/2005
Definitions: 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).
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 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).
Program Con- Clear alarm with the RESET key in all channels. Restart part program.
tinuation:
300781
Axis %1 drive %2 zero load current > rated current of power section
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: 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).
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.
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.
Program Con- Clear alarm with the RESET key in all channels. Restart part program.
tinuation:
300782
Axis %1 drive %2 reactance less than or equal to zero
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: The value in MD 1139: $MD_STATOR_LEAKAGE_REACTANCE (stator leakage reac-
tance) or MD 1140: $MD_ROTOR_LEAKAGE_REACTANCE (rotor leakage reactance)
© Siemens AG, 2005. All rights reserved
SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
Overview of Alarms
2-883