Settings
Settings
isoHR685W-x-I-B_D00261_05_M_XXEN/12.2021
32
9.2
(1.12.1.1) TEST
The functional test of the relay can be activated or deactivated. This only applies to the
manual test and not to the cyclic device self test:
9.2
(1.12.1.2) Relay mode
The relay mode can be adapted to the application:
9.2
(1.12.1.3) Function 1
Up to three functions can be assigned to one output. The functions are linked to an OR
operator:
The following parameters can be set.
•on
The manual test checks the switching function of the relay. The
relays switch for approx. 2 seconds.
•off
The manual test does not check the switching function of the relay
•N/C
Normally closed - N/C operation contacts 11-12-14 / 21-22-24 (in
fault-free condition, the alarm relay is energised).
•N/O
Normally open - N/O operation contacts 11-12-14 / 21-22-24 (in fault-
free condition, the alarm relay is de-energised).
•Flash
Relay flashs. Flashrate: 1 s ON / 1 s OFF
Function
Description
•off
The function is not used.
•Ins. alarm 1
The status of the output changes when the value falls below the set
response value
R
an1
.
•Ins. alarm 2
The status of the output changes when the value falls below the set
response value
R
an2
.
•Connection fault
The status of the output changes when one of the following connection
fault occurs:
• No low-resistance connection between the line conductors.
• No low-resistance connection between terminals "E" and "KE" to earth.
• Load at voltage output too small
• Load at voltage output too high
• Load on "X1" too high.
≥ 1
Reaktion
Funktion 1
Funktion 2
Funktion 3
9.2
(1.12.1.4) Funktion 2
Refer to
chapter 9.2 (1.12.1.3) “Function 1” on page 32
.
9.2
(1.12.1.5) Funktion3
Refer to
chapter 9.2 (1.12.1.3) “Function 1” on page 32
.
9.2
(1.12.2) Relais 2
Refer to
chapter 9.2 (1.12.1) “Relay 1” on page 31.
•DC- alarm
The status of the output changes in case of an earth fault in the direction
of DC when 75 % of the value are exceeded. This does not concern sym-
metrical faults. This function will only be carried out when the value falls
below the response value
R
an1
and when the nominal system voltage is
U
n
≥ 50 V.
•DC+ alarm
The status of the output changes in case of an earth fault in the direction
of DC+ when 25 % of the value are exceeded. This does not concern sym-
metrical faults. This function will only be carried out when the value falls
below the response value
R
an1
and when the nominal system voltage is
U
n
≥ 50 V.
•Symmetrical
alarm
The status of the output changes in the event of a resistance ratio
between DC+ and DC- of 25 % to 75 %.
•Device fault
The status of the output changes in the event of an internal device fault.
•Common alarm
The status of the output changes on the occurrence of any alarm and
fault messages (Ins. alarm 1 & 2, DC-/DC+ alarm, symmetrical alarm, con-
nection and device errors).
•Measurement com-
plete
The status of the output changes at the end of the initial measurement.
•Device inactive
The status of the output changes when the device has been deactivated
via a digital input or the "Control" menu.
•DC offset alarm
The status of the output changes on the occurrence of a DC offset volt-
age in the system.
•Connection error
Change of state when one of the following events occurs:
• ISOnet general error
• ISOnet device timeout
• ISOnet missing device
• ISOloop fault
Function
Description
DC+ Alarm
Symmetrischer Alarm
DC- Alarm
0 %
25 %
50 %
75 %
100 %
