Isometer® iso685-d-p iso685W-d-p iso685-s-p iso685w-s-p insulation Monitoring Device with integrated locating current injector for it ac systems with galvanically connected rectifiers and inverters and for it dc systems

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iso685-D-P D00170 M XXEN

3.7 Compatibility with EDS Full compatibility, communication with ISOMETER® via BS bus

CAUTION
3.6 Self test
After switching on the supply voltage, the ISOMETER® automatically and continuously
checks all internal measuring functions, the components of the process control such as
the data and parameter memory, as well as the connections to the IT system and earth.
Additionally, all EDS devices connected to the ISOMETER® are tested.
The self test can also be activated manually by means of the test button to check the func-
tions of the relays (depending on the configuration) or it can be selected via the "Control"
menu (refer to
page 61
).
The progress of the manual self test is shown on the LC display by a bar graph. Depending
on the conditions in the IT system being monitored, the self test is completed after
15…20 seconds. The device then returns to the standard mode (measurement mode)
and the actual measured value will be displayed after the measuring time has expired.
The display shows the message Initial measurement until the first valid value is meas-
ured (refer to
“Initial measurement” on page 40
).
If a fault is detected during the self test, the respective LEDs of the device light (refer to
“Alarm messages” on page 79
). In addition, the respective message will be indicated on
the display and a previously programmed output will provide the respective signal.
The test has been run and the result was positive.
The test has been run and the result was negative.
The test is not available and is not carried out
(e.g. due to specific device settings).
The test is running.
TEST
√ Measurement
Coupling
Earth connection
Outputs
33 %
√

Function
Function
iso685-D-P_D00170_03_M_XXEN/07.2017
15
3.7 Compatibility with EDS
Full compatibility, communication with ISOMETER® via BS bus

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