CKD MN4E0 Series

[SM-P00081-A]
―21―
4
INSTALLATION
CAUTION
● Always check the polarity and rated voltage thoroughly before connecting cables.
● Calculate the current consumption to select the power cable.
● Consider the voltage drop due to cables when selecting and wiring the cables if power is
supplied to more than one slave unit (remote I/O unit) from one power supply.
● Take measures to secure the specified power supply voltage if voltage drop cannot be avoided.
For example, wire the power cables in multiple systems or install other power supplies to secure
the specified power supply voltage.
● Install a terminal block if multi-drop wiring of the power cables is needed.
Install the terminal block so that it comes before the power plug.
2) Wiring of the power cable
Figures 1 to 3 are examples of the wiring for the power plug.
Change the circuit configuration as necessary.
power plug
24V
0V
Valve
power
24V
0V
Unit
power
DC power
Terminal block
power plug
24V
0V
Valve
Power
24V
0V
Unit
power
power plug
24V
0V
Valve
power
24V
0V
Unit
Power
Valve power switch
1. Common connection for
u
nit power and
v
alve power
2. Connection for turning on/off
valve power
3. Separate connection for
unit power and valve power
DC Power
Terminal block
Terminal block
To the
next
slave
unit
To the
next
slave
unit
To the
next
slave
unit
DC Power