Protection Function Of Ground Fault Detection; Fault And System Messages; External Warnings And Faults - Siemens SINAMICS GL150 Operating Instructions Manual

Operation

8.5 Fault and system messages

8.4.4

Protection function of ground fault detection

The entire power unit is isolated. An insulation fault alone will not normally impair operation.
However, in the event of such a fault, the voltage of the other two phases increases with respect
to ground. In the medium term, this rise in voltage can result in damage. An additional error can
cause a short-circuit.
Danger when operating with ground fault
The type and location of the fault cannot be established just from a ground fault error
message. For example, the glow discharge in the machine's coil end may be the cause of the
fault message. In the event of continued operation, serious aftereffects (all the way up to
electric arcs) are possible. This can result in death, serious injury or material damage.
● If a ground fault is experienced during converter operation, the converter must be switched
● The plant operating company is responsible for the consequences, if the converter is still
8.5 Fault and system messages
Hardware trace
The drive saves data to the CompactFlash card each time there is a fault trip. Customer
Supports requires this data in the case of a fault.
Save your data as follows:
1. Switch off the drive.
2. Switch off the power supply for the control cabinet. Remove the CompactFlash card from
3. Save all data of directory "Install\Sinamics\Trace".
4. Send these data to Customer Support.
8.5.1

External warnings and faults

With the terminal blocks TM15/TM31, there are 24 terminals. With STARTER or SCOUT, you
can select which predefined messages are displayed and which protection devices are to be
triggered. The list of parameterized faults and alarms can be found in the List Manual in the
"Faults and alarms" section.
114
WARNING
off immediately. Then identify and eliminate the source of the ground fault.
operated after a ground fault has been detected. Carry out a risk analysis.
the Control Unit.
SINAMICS GL150 6SL38555UN113KA0Z
Operating Instructions Rev.201910281450 EXAMPLE