Observe Chapter, "Safety instructions" when carrying out any work at the converter.
Safety instructions for operation
Operating the drive when a fault has arisen can result in death, serious injury or substantial
● Observe the fault and alarm messages.
● Eliminate the source of the fault. Only put the drive back into operation once this is
● If it is not possible to correct a fault, inform the manufacturer's service personnel
Unpermitted operation 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 at the winding overhang of the machine may
result in a fault signal. In the event of continued operation, serious aftereffects all the way to
electric arcs are possible. This can result in death, serious injury or material damage.
If a ground fault is experienced during drive operation, the drive must be switched off
immediately. Then identify and eliminate the source of the ground fault.
The plant operating company is responsible for the consequences, if the drive is still operated
after a ground fault has been detected. Carry out a risk analysis.
Exceeding the permitted short-circuit currents
Serious follow-on faults are possible, if the specified short-circuit current values are exceeded.
This can result in death, serious injury or material damage.
Observe the maximum permitted short-circuit currents and maximum specified short-circuit
SINAMICS SM120 6SL38715
Operating Instructions 07/2015
resolved. You can find further information on alarms and faults in the section "Fault
indications and correction."
immediately. For additional information, see Chapter "Service & support".