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L1 (A)
L2 (B)
L3 (C)
N
1
3
2
a) Neutral current
2.10 Analog Output Connections
Figure 2-13 shows wiring for an analog output. The analog output is optically
isolated and has an internal source +24 VDC to power the current loop. Analog
output range is 0-20 or 4-20 mA, as per your order.
The permitted range for the current loop resistance is 0 to 510 Ω.
In many industrial applications, it may be necessary to protect the output from
accidental shorts to AC line voltages, in addition to high common-mode voltages.
The circuit shown in Figure 2-14 can be used for this purpose.
26
LOAD
K
L
+
-
+
-
4
6
7
9
5
8
11
10
12
Figure 2-12 Auxiliary Current Input Connections
+
13
-
15
Figure 2-13 Analog Output Connections
+
13
C1
VR1
-
15
Figure 2-14 Protective Circuit For Analog Output
L1 (A)
L2 (B)
L3 (C)
N
+
+
1
3
4
6
7
9
2
5
8
11
10
12
b) Ground leakage current
R L
max 510 Ohm
C1 = 0.1 mF/50V
VR1 = 25 VRMS
R
L
LOAD
-
-
97-04023
Installation
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