
OSMEX225-EN
10/12
INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS
WIRING
PRECAUTIONS
When wiring is long distance or handling a weak
current signal, it may be affected by induced voltage
or noise. In this case, please use countermeasures
such as using a shielded wire, separating it from
other power cables.
CONNECTION
• Check the power supply voltage and connect
properly as shown in the wiring diagram.
• Even when not using signal wires, please conduct
insulation treatment so as not to short circuit.
• When connecting electric wires of flexible cable,
please use a waterproof box or waterproof
connector.
• When connecting with flexible cable wires, please
ensure waterproof treatment at the connection part.
• When not waterproofed, moisture may enter the
inside of the actuator from the gap of the insulator
inside the sheath and the conductor gap, which may
cause malfunction. Completely seal the sheath end
and the wire end as shown below.
• CMX type actuator should be electrically grounded.
Use the terminal marked ( ) outside the actuator.
CMX (015 / 030) CMX (070)
CONTROL
CM1 / CA1
Control switch should be prepared one by one for
actuator. Do not operate two or more actuator from
one switch. It might malfunction.
CM2 / CD2 / PM1
• Two or more actuators can be operated with one
control switch.
• When using control switch with current leakage
(more than 1 mA) (PM1: more than 0.1 mA) such as
TRIAC or relay with CR, it can cause malfunction.
DC power supply
• Cannot use a half or full-wave power supply.
• Consider an inrush current of motor.
(It is 1.5 to 3 times of consumed current.)
• When the wiring distance becomes long, please
select the electric wire so that the voltage does not
become 80 % or less at the actuator part during
operation.
USE OF OPEN/SHUT SIGNALS
Use signals within the capacity of output signal
rating.
PM1
If there are many motorized valves, please prepare
the number of power supply capacity and fuse
capacity. This is because all of the motorized valves
at the same time operate at the same time for setting
the initial position of the actuator when turning on the
power for the first time.
INPUT SIGNAL AND OPERATION MODE (CMX)
The input signal and operation mode are set as
follows. (Factory shipped)
Input signal 4 to 20 mA
Operation mode Mode A
Operation SHUT by 4 mA
OPEN by 20 mA
Sheath
Cable end Crimp the conductor
Vinyl tape
Sealing
compound
Insulator
Conductor
Sealing
compound
Ground terminal
(M3)
Ground terminal
(M4)