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4.2 Fastening on a mounting surface
While pressing the latch (4) in the base of the device (Fig. 6,
left) pull out the transducer securing brackets (1). To return
the brackets to their original positions, the latch (5) in the
base of the device has to be depressed before applying
pressure to the securing brackets (1) (see Fig. 6, right).
(1)
(2)
(3)
(2)
(4)
(1)
Fig. 6. Rear of device.
(4) Latch for pulling the screw hole
(1) Screw hole brackets
(2) Top-hat rail clips
(5) Latch for pushing the screw hole
(3) Rubber buffers
Function
Measuring input
Outputs
RS 485
(MODBUS)
Power supply
AC
DC
If power supply is taken from the measured voltage
internal connections are as follow:
Application (system)
Single-phase AC current
4-wire 3-phase
symmetric load
All other (apart from
A15 / A16 / A24)
(1)
(5)
(1)
brackets out
brackets in.
Connect.
AC current IL1
1 / 3
IL2
4 / 6
IL3
7 / 9
AC voltage UL1
2
UL2
5
UL3
8
N
11
Analogue
+
15
A
–
16
+
17
B
–
18
+
19
C
–
20
+
21
D
–
22
Tx + / Rx +
23
Tx – / Rx –
24
GND
25
26
~
13
~
14
+
13
–
14
Internal connection
Terminal / System
2 / 11
(L1 – N)
2 / 11
(L1 – N)
2 / 5
(L1 – L2)
Drill 2 holes in the wall or panel as shown in the drilling pattern
(Fig. 7). Now secure the power pack to the wall or panel using
two 4 mm diameter screws.
Fig. 7. Drilling plan.
5. Electrical connections
The connectors are designed as screw terminals. They are
suited for single-wire leads of 4 mm
2 × 2.5 mm
2
cross section.
Make sure that the cables are not live when
making the connections!
Connect the leads according to the table.
A
B
C
D
+
+
+
+
–
–
–
–
15
16
17
18
19
20
21
22
RS 232
1
2
3
4
5
6
7
8
I L1
I L1
I L2
I L2
I L3
U L1
U L1
U L2
U L3
Measuring range
2
or multiple-wire leads of
RS 485
Tx/Rx
+
GND
–
Front
23
24
25
26
9
11
13
14
I L3
N
(+)
(–)
29
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