EDS470 - Bender

7 Settings and adjustmen ts
Factory settings
All devices are delivered with the following factory settings:
Insulation monitoring device:
Factory settings depend on the type of device. Refer to the data sheet of the
respective insulation monitoring device.
Insulation fault test device PGH471:
Operating mode of the alarm relay: N/O operation
Address: 111
Operating mode:
SLAVE
Max. test current:
25 mA
Insulation fault evaluator EDS470-12:
Operating mode of the alarm relay: N/O operation
Operating mode:
SLAVE (with PRC470 or PGH471)
Fault memory:
ON
Transformer type:
Standard transformers W1-P … W4-P,
W0-S … W5S, WR
Address: 001
Peak: n = 1
Coupling device AGE470:
No settings required
Control and indicating device PRC470:
Operating mode of the alarm relay: N/O operation
Fault memory:
ON (from Firmware Version 1.6 up)
Address: 100
Operating mode:
MASTER
Peak: n = 1
Transformer type:
Standard current transformer W1-P …
W4-P, W0-S … W5S, WR
Information concerning
the insulation monitoring
device
The following are to be considered when choosing the insulation monitoring
device.
1) The internal DC resistance R i
must be at least 120 kΩ.
Devices with lower internal resistances must be disconnected from the system
during insulation fault location.
2) Device with two adjustable response values.
In this case, response value 1 can for example be set to the value recommended
in DIN VDE 0100 (100 Ω/V) or even more sensitive. This will then be
considered as pre-warning.
Response value 2 must start the EDS system. It should be set to a practicable
and useful value which depends on the nominal voltage of the system.
The setting of a practicable response value depends on some system
parameters. The curves on the following pages can be used for determining this
value.
50
TGH 1243E/02.2000