54
The device in-use
8.3
Insulation monitoring
“On-site operation” mode is equipped with insulation monitoring with
shut-off. The insulation monitoring provides electrical safety to the gener-
ator and to all connected consumers and cable connections during contin-
uous operation.
A possible insulation fault is displayed in two stages:
1. Yellow warning light with warning tone:
a) There is an insulation fault with transfer resistance lower than 46 kΩ but
higher than 23 kΩ in a current circuit of the power generator, the cable
network or a connected consumer.
Result: Operation is still possible, and the main line circuit breaker is still
on. However, the cause of the insulation fault must be fixed soon. If the
insulation fault occurs only in connection with a specific consumer or ca-
ble connection, the corresponding part must not continue to be used.
If the fault continues to occur after all consumers have been unplugged,
immediately contact service personnel.
2. Red warning light with warning tone:
a) There is an insulation fault with transfer resistance lower than 23 kΩ in a
current circuit of the power generator, the cable network or a connected
consumer.
Result: Operation is no longer possible, and insulation monitoring trips
the main line circuit breaker. The power generator cannot be operated
again until the cause of the insulation fault is fixed.If the insulation fault
occurs only in connection with a specific consumer or cable connection,
the corresponding part must not continue to be used.
If the fault continues to occur after all consumers have been unplugged,
immediately contact service personnel.
WARNING!
Change in the hazardous situation when using the insulation monitoring
option.
Electric shock hazard if consumers are connected wrong
► If you have selected the “insulation monitoring” option, your power generator
becomes a Version A device (also see Fig. 3-3 ).
► Always follow the instructions from the DGUV for Version A power generators
(see infographic Fig. 7-1 and Chapter 7.7 ).
NOTICE!
The operating personnel must check the function before every start-up by
pressing the insulation monitoring test button (see Chapter 5 Checking the
electrical safety as well).
