Power And Grounding Wiring - YOKOGAWA ZR22G User Manual

Notice when closing the cover of the detector
l
NOTE
• Before opening the detector cover, loosen the lock screw. If the screw is not loosened first,
the screw will damage the cover, and the terminal box will require replacement.
When opening and closing the cover, remove any sand particles or dust to avoid gouging
the thread.
• After screwing the cover in the detector body, secure it with the lock screw.
Lock screw
Figure 5.5
5.2.3

Power and Grounding Wiring

This wiring supplies power to the converter and grounds the converter/detector.
Grounding to the ground terminal
on the converter case
Converter case
FG terminal
Figure 5.6
Power Wiring
Connect the power wiring to the L and N terminals of the converter. Proceed as follows:
(1) Use a 2-core or a 3-core cable.
(2) The size of converter terminal screw threads is M4. Each cable should be terminated
corresponding to crimp-on terminals.
Grounding Wiring
The ground wiring of the detector should be connected to the ground terminal of the detector
case. The ground wiring of the converter should be connected to either the ground terminal of the
converter case or the protective ground terminal in the equipment.
The grounding terminals of the detector and the converter are of size M4. Proceed as follows:
Detector cover
Crimp-on terminal of
the ground wire
Lock washer
Power and Grounding wiring
<5. Wiring>
F5-8E.ai
ZR802G ZR22G
Converter Detector
L N G
100 to 240 V AC
50/60 Hz
IM 11M12G01-02EN
5-6
Ground
1sh Edition : Mar. 25, 2021-00