Siemens SINUMERIK 840Di Diagnostic Manual page 758

Overview of Alarms
SIMODRIVE alarms
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 reactance) or MD
1140: $MD_ROTOR_LEAKAGE_REACTANCE (rotor leakage reactance) or MD 1141:
$MD_MAGNETIZING_REACTANCE (magnetizing reactance) is less than or equal to zero.
The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY (channel not
ready).
Reaction: 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.
- For standard motors: Reset the drive (delete the bootfile) and repeat the startup.
- For third-party motors: Check and, if necessary, refer to the motor data sheet to correct MD 1139:
$MD_STATOR_LEAKAGE_REACTANCE (stator leakage reactance) or MD 1140:
$MD_ROTOR_LEAKAGE_REACTANCE (rotor leakage reactance) or MD 1141:
$MD_MAGNETIZING_REACTANCE (magnetizing reactance).
Program Clear alarm with the RESET key in all channels. Restart part program.
Continuation:
300783 Axis %1 drive %2 rotor resistance invalid
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: The value in drive MD 1138: $MD_ROTOR_COLD_RESISTANCE (cold rotor resistance) is less than
or equal to zero or a format overflow has occurred.
The alarm can be reprogrammed in the MD ALARM_REACTION_CHAN_NOREADY (channel not
ready).
Reaction: 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.
- For standard motors: Reset the drive (delete the bootfile) and repeat the startup.
- For third-party motors: One of the following machine data may contain an invalid value:
- Modify MD 1001: $MD_SPEEDCTRL_CYCLE_TIME (speed controller cycle)
- Modify MD 1134: $MD_MOTOR_NOMINAL_FREQUENCY (rated motor frequency)
- Modify MD 1138: $MD_ROTOR_COLD_RESISTANCE (cold rotor resistance)
- Modify MD 1139: $MD_STATOR_LEAKAGE_REACTANCE (Staenderstreureaktanz)
- Modify MD 1140: $MD_ROTOR_LEAKAGE_REACTANCE (rotor leakage reactance)
- Modify MD 1141: $MD_MAGNETIZING_REACTANCE (magnetizing reactance)
Fulfill the condition according to the folowing formula:
16 * P1001 * 0.00003125 * P1138 * 2PI * P1134 / (P1140 + P1141) < 1
Call the SIEMENS AG, SIMODRIVE Hotline.
Program Clear alarm with the RESET key in all channels. Restart part program.
Continuation:
2-758
© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
11/2006