Figure 4-4 An Example Of Wiring In The Cubicle - Hitachi HSC-2100 Hardware Manual

2
2 mm or
more in size
Shield
ground wire
Cubicle
ground
To control power source
2
5.5 mm or more
A separate grounding
from the grounding for the
programmable controller
NFB
H
N
LG
NFB
H
N
LG
Electrostatic-shielded
isolation transformer
Cubicle must be electrically insulated
from the floor.
Grounding metal piece for
mounting units -- this metal
piece must be electrically
insulated from the cubicle.

Figure 4-4 An Example of Wiring in the Cubicle

LPU or CPU unit
I/O unit
Terminal block (TB)
4-5
5.5 mm
Class D grounding for
programmable controller
4 WIRING
2
2 mm or
more in size
2
or more