Mitsubishi Electric MELSEC iQ-R Series User Manual page 104

Section 6 SETTING AND PROCEDURE FOR OPERATION
6.3.3 How to wire
Follow the wiring diagram (Figure 6.3.3-1 ~ 6.3.3-5) for external connection of RE81WH.
(1) In the case using 5A current sensor.
(a) Case of using EMU2-CT5
5A current sensor cable
EMU2-CB-Q5A
(b) Case of using EMU-CT5-A
5A current sensor
EMU2-CT5
Figure 6.3.3-1 In the case of Three-phase 3-wire system
(with the voltage transformer for gauge/current transformer)
Power supply side
5A current sensor
EMU-CT5-A
k K
l L
Voltage
transformer
for gauge
Figure 6.3.3-2 In the case of Single-phase 2-wire system
(with the voltage transformer for gauge/current transformer)
Power supply side
1 2 3
k
K
l L
K
k
l
L
Load side
Voltage
*For a low voltage circuit, grounding
transformer
of the secondary sides of VT and
for gauge
CT is not necessary.
1 2
Current
k K
transformer
/5A
l L
*For a low voltage circuit, grounding
of the secondary sides of VT and
CT is not necessary.
Load side
103
RE81WH
Current
transformer
/5A