37
Operation and setting
Setting of the coupling devices (AGH: no)
Factory setting, when no coupling device is used.
AGH: 204 AK80
The terminal AK of the IRDH375 is connected to terminal AK80 of the
AGH204S-4. The nominal voltage range is extended to 3AC 0...1650 V. Only
power converters the output voltage of which do not exceed DC 1000 V may be
connected (see page 25 „operation with coupling device“).
AGH: 520S
The terminal AK of the IRDH375 is connected to terminal 5 of the AGH520S.
The nominal voltage range is extended to AC 0...7200 V. Only power converters
the output voltage of which do not exceed DC 1000 V may be connected.
AGH: 204 AK160
The terminal AK of the IRDH375 is connected to terminal AK160 of the
AGH204S-4. The nominal voltage range is extended to 3AC 0...1300 V. Power
converters with a voltage of DC 0...1840 V may be connected (see page 25
„operation with coupling device“).
AGH: 150 AK160
The terminal AK of the IRDH375 is connected to terminal AK160 of
the AGH150W-4. The nominal range can be extended to DC 0...1760 V.
If an external coupling device is connected, the coupling monitoring will be
deactivated.
Adaptation to the system leakage capacitance (C
emax
: 150 µF)
This menu allows to adapt the A-ISOMETER
®
to the maximum system leakage
capacitance (max. 500 µF). Please note that the basic measuring time will be
increased to approx. 10 seconds when the setting is C
e
=500 µF
Automatic self-test (Autotest: 24h)
The automatic self-test can be set to 1 hour respectively 24 hours (factory
setting) or it can be deactivated.
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