Bender ISOMETER isoHR685W Series, Руководство пользователя

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Settings Settings
isoHR685W-x-I-B_D00261_05_M_XXEN/12.2021
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9.2 Settings in the device menu
9.2 (1.0) Alarm settings
The limit values for the insulation resistances of "Alarm 1" and "Alarm 2" can be specified
in the alarm settings menu and can be adapted to the user profile of the ISOMETER®. A
device password is required for entering the settings. You can adjust the following func-
tions:
9.2 (1.1) Insulation alarm
In the "Insulation alarm" menu, the ISOMETER® limit values for "Alarm 1" and "Alarm 2"
can be set.
Activation or deactivation of the two alarm levels R
an1
for "Alarm 1" and R
an2
for
"Alarm 2" are illustrated in the graphic below.
An alarm will become inactive as soon as the hysteresis of the set operating value
is exceeded.
9.2 (1.1.1) Alarm 1
For "Alarm 1" an insulation resistance of 1 kΩ…3 GΩ can be set independently
of "Alarm 2".
9.2 (1.1.2) Alarm 2
For "Alarm 2" an insulation resistance of 1 kΩ…3 GΩ can be set independently
of "Alarm 1".
Representation of the menu items in the headings
The settings of the ISOMETER® are explained in the order of the device
menu. The menu items shown in the device display are indicated in brack-
ets in the headings of this chapter.
t
R
R
an1
R
an2
Alarm 1
aktiv
Alarm 2
aktiv Alarm 2
inaktiv
Hysterese
Alarm 1
inaktiv
Hysterese
9.2 (1.1.3) Fault memory
Automatic reset of inactive faults at the outputs relay 1, relay 2, digital output 1, digital
output 2:
9.2 (1.2) DC alarm
The DC alarm is triggered in the event of a DC offset voltage ( U
DC-E
) in the system.
9.2 (1.2.1) Alarm
9.2 (1.2.2) U(DC-E)
Set the DC alarm to a value between 20 V and 1 kV.
•on
If a fault becomes inactive, the programmed outputs remain in fault
condition until the system has been reset manually.
•off
If a fault becomes inactive, the programmed outputs automatically
change the state.
•on
The DC alarm is triggered in the event of a DC offset voltage.
•off
The DC alarm is NOT triggered in the event of a DC offset voltage.
120 V
t
U
DC+
DC-
100 V
200 V
0 V
-80 V
-100 V
R
f
R
f
U1
U1
U2
U2
U
DC-E
= ( U
1
+U
2
)/2=(120 V- 80 V) /2=20 V
U
DC-E