Bender FTC470XET, Руководство по эксплуатации

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55 TGH1375en/02.2010
7.4.1 Setting the parameters for response values, operating principle of the relays
and starting time of the automatic self test
Higher response values R
an1
and R
an2
are to be assigned to an IRDH275B so that in case of
higher insulation values Alarm 1 and 2 will be triggered:
R
an1
=100 k
Ω
R
an2
= 40 k
Ω
In addition, the operating principle of both alarm relays has to be changed from "N/O oper-
ation Test" into "N/O operation" , to prevent the relays from switching during the test.
Also the starting time of the self test is to be changed from 12:00 to 17:00 in order to meet
the operational requirements.
1. Select "Set device parameters" from the submenu of the IRDH275. The respective window will
appear.
2. Enter the appropriate response value in K
Ω
into the edit field at the top: 100.
(The supported value range is 1...10 000 k
Ω)
.
3. Open the selection list in line 3 and line 4 by clicking the respective Down key. Click N/O operation.
4. Open the selection list in the line "Time of test" and select 17:00.
5. Click "Save"“. After a few seconds, the new value appears in the "New value" column of the "Set
device parameters" window.
If you find a mistake after the completion of parameter setting, you can call up the "Set device
parameters" window again and overwrite the wrong values and save them.