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iso685-D-P_D00170_00_M_XXDE/06.2016
32
Commissioning
7. Commissioning
7.1 General initial commissioning process
1. Check that the ISOMETER® is properly connected to the system to be monitored.
2. Connect the supply voltage to the ISOMETER®. Adjust the device using the commis-
sioning wizard. Afterwards, the ISOMETER® performs a self test in four steps. The
alarm relays are not checked during this test. After completion of the test, the meas-
ured insulation resistance is shown on the display. If the value exceeds the response
values indicated in the lowest line of the display, the message "OK" will additionally
be displayed.
3. Check the ISOMETER® in the system being monitored, e.g. using a suitable resistance
to earth.
After setting the response value
R
an2
for alarm 2, the device starts a self test, makes the
first measurement and outputs the measured insulation resistance values of the IT sys-
tem being monitored, then commissioning is completed.
For customer-specific configured devices, the commissioning wizard
might be deactivated and cannot be run. In this case, the device is preset.
However, the commissioning wizard can be started as described at
Observe device status!
The device is in an alarm state until initial commissioning has been
completed.
Commissioning flow chart
Commissioning the ISOMETER
®
Adjust basic settings if
necessary
Control and/or connect the EDS
to the ISOMETER
®
:
* EDS44…-L: use BS bus
* EDS44…-S: use BB-Bus
Make any other necessary
settings for the EDS44… in the
ISOMETER
®
menu:
EDS
Set the maximum locating current
in the ISOMETER
®
menu:
EDS
General
Current
* EDS440…: 10…50 mA
* EDS441…: 1…5 mA
Install the device according to the
wiring diagram
and documentation
Connect the supply voltage
Connect the system voltage
The ISOMETER
®
performs a self
test
Function test with a suitable
resistance between system and
earth. Resistance value: 50% of
the response value Alarm 2
Remove the resistance
The ISOMETER
®
is properly
connected and
functions reliably
Commissioning the EDS44…
Function test with a suitable
resistance between system and
earth. Resistance value: 50% of
the response value Alarm 2
Remove the resistance
The ISOMETER
®
and EDS44...
combination is properly connected
and functions reliably
Set BS address = 1 (Master)
System commissioning of
ISOMETER
®
with EDS44…
Install the device according to the
wiring diagram and documentation
Connect the supply voltage
Delete the alarm messages as
described in the device
documentation
The EDS44… is properly
connected and ready for operation
Disconnect supply voltage
of all devices
Connect the supply voltage
to all devices
Search for adjustable measuring
channels in the ISOMETER
®
menu:
EDS
Scan for channels
Activate measuring channels in
ISOMETER
®
menu:
EDS
Enable channel
Run the commissioning
wizard
The
ON
LED flashes until the
device is ready for use
Set EDS mode in the ISOMETER
®
menu:
EDS
General
Mode
EDS44…-L:
Set the BS adress using
the rotary switches on the EDS
For further information regarding de-
vice settings, refer to chapter