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A1/+
A2/–
L1/+
ETH
X1
R
R
OFF
ON
X1
Deactivate
Device
high
low
active
active
TEST RESET
+24 V
L2
L3/-
KE
R
11
12
14
21
22
24
RS-485
I1 I2
I3
A B
+
Q1 Q2 M+
active adjustable
A
Currentmeter
V
Voltagemeter
Connection
Wire up the device according to the wiring diagram taking
account of the technical data. After connecting the device,
E
install the enclosed upper and lower terminal cover!
I
W
arninG
to a short circuit! When coupling the terminals
L1/+, L2, L3/- to the IT system ≤ 690 V to be monito-
red, devices for protection against a short-circuit
can be omitted according to IEC 60364-4-43:2008 or
DIN VDE 0100430 if the wiring is carried out in such
a way as to reduce the risk of a short-circuit to a
minimum. Pay attention to short-circuit proof and
earth-fault proof wiring.
Legend to terminal diagrams
Terminal
A1/+ A2/- **
L1/+, L2, L3/-
KE E
I1...I3 (X1)
A, B (X1)
+ (X1)
Q1, Q2 (X1)
M+ (X1)
(X1)
RJ45 (ETH)
R
11 12 14
21 22 24
i
** Provide line protection! According to DIN VDE 0100-
430, a line protection shall be provided for the supply
voltage
iso685-x_D00022_11_Q_INTE/03.2021
ISOMETER® iso685...
! Injury, fire and damage to property due
Connections
Power supply,
U
= 24...240 V (50...400 Hz)
s
Connections to the system to be monitored
AC, 0...690 V
AC, 0...600 V für UL applications
DC, 0...1000 V
Connection to ground
Configurable digital inputs (e.g. Test, Reset,...)
Serial interface RS-485 (BS bus)
Supply voltage of the inputs and outputs I, Q and M.
Electrical overload protection. Automatic shutdown
in the event of a short circuit and transient
(resettable).
If the supply is via an external 24 V source, then
A1/+, A2/- must not be connected.
Configurable digital output
Configurable analogue output (e.g. measuring
instrument)
Reference potential ground
Ethernet connector, webserver, modbus, IP
Termination for the BS bus
Relay 1
Relay 2
7
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