User`s manual

6-3
Note: Observe the following points for direct grounding of the GND cable of the JW300 to the chassis:
- Connect the grounding cable from the GND terminal of the power supply module of JW300 to the
chassis in the minimum distance. The same wiring manner should be used for the expansion
rack panel.
- Install firmly the basic rack panel and the expansion rack panel on the chassis of the control
panel and make sure of the electric conductivity.
- Where the control panel itself is grounded, do not wire between the grounding point and the GND
terminal of the JW300.
Reference: Note for fitting the JW300 on the control panel door.
Ground from the GND terminal of the JW300 to the door.
Use a twisted wire of over 2 mm
2
sectional area for grounding cable of the control panel
from its door (less than 50 cm.)
Chassis
Expansion rack
panel
Basic rack panel
Conducted
PLC
ground
Ground point of the
control panel
Don’t wire here
PLC
Connect the PLC ground cable
with the door.
Door
Connect the door ground cable with the
control panel chassis.
Control panel
Ground
Basic rack panel
Power supply module
Ground cable
Connect the grounding cable to the
fastening screw on the rack panel.