Siemens SINUMERIK 840Di Diagnostic Manual page 710

Overview of Alarms
SIMODRIVE alarms
300513 Axis %1, drive %2 ground fault detected
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: Firmware has detected a ground fault.
Measured phase currents are greater than the response threshold for detecting a ground fault
configured in MD1167 $MD_CURRENT_GROUND_IDENT or the movement is greater than the
maximum permitted movement during ground fault detection configured in MD1168
$MD_MAX_TURN_MOTORIDENT.
Reaction: Mode group 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: Ground fault in power cables or on motor.
At least one phase current overruns threshold MD1167 $MD_CURRENT_GROUND_IDENT or
MD1168 $MD_MAX_TURN_MOTORIDENT during the ground fault detection.
Detailed information in the machine date Diagnostics MD1169 $MD_DIAG_MOTORIDENT.
Program Switch control OFF - ON.
Continuation:
300515 Axis %1 drive %2 power section heat sink temperature exceeded
Parameters: %1 = NC axis number
%2 = Drive number
Definitions: The temperature of the power section is acquired from a temperature switch on the heatsink. 20
seconds after the heatsink temperature warning, drive shutdown is initiated immediately in order to
avoid thermal damage to the power section (regenerative stop).
Reaction: Mode group 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. Provide better ventilation of the drive
modules, e.g. by means of:
- Greater air throughput in the switching cabinet, if necessary cool the ambient air of the 611D
modules.
- Avoid numerous acceleration and deceleration operations in rapid sequence by modifying the
workpiece programming.
- Incorrect motor/power section dimensioning
- Excessive ambient temperature (see Planning Guide)
- Exceeding of the installation height (see Planning Guide)
- Excessive pulse frequency (see Planning Guide)
- Defective module
- Fan failure
- Observance of the minimum clearance over and under the power section (see Planning Guide)
Program Switch control OFF - ON.
Continuation:
2-710
© Siemens AG, 2006. All rights reserved
SINUMERIK, SIMODRIVE Diagnostics Manual (DA), 11/2006 Edition
11/2006