User`s manual

6-20
[2] Wiring for 5 VDC cable, process of panel wiring
Be sure to supply 5 VDC to the expansion rack panel without power supply module, through the 5 VDC
terminal block of the basic/expansion rack panel with power supply module. Without a supply of 5
VDC power supply, the I/O module cannot run.
- Be careful not to mistake polarity in connection of basic/expansion rack panel into the 5 VDC terminal
block. Mis-connections might damage the module or cause fire.
- Do not use a 5 VDC cable for connection between rack panels that are used to install power supply
modules. Connect these may cause malfunction.
- For wiring to the 5 VDC terminal block, use crimp-style terminals.
- In order to prevent wire wastes from dropping into the module through a ventilation hole of the
module during the wiring work, keep the caution label stuck onto the upper side of the module. Peel
the caution label off of the module.
- Fasten the screw on the terminal block with a torque of less than 1.18 N-m.
(1) Wiring processing example of four rack systems
- Connect AC/DC power supply to the power supply module from the same power.
- Do not place the I/O expansion cable and the 5 VDC cable in the same duct or pipe as the I/O lines
and the power lines of the JW300.
▲
Halt output
AC/DC
power supply
5 VDC cable
I/O expansion cable
Class-D grounding
When using the JW-22EC
/25EC/210EC with the I/O
expansion cable, be sure to
install a short connector (for
termination resistance,
attached to I/O expansion
cable.) Otherwise, an error
may occur.
When using only JW-203EC
/207EC, installation of short
connector is unnecessary.
Wiring duct
Wiring duct
Wiring duct
Wiring duct