I. INSTALLATION
IM TEMI 770E_C 2nd Edition: Sep. 1. 2003. 7/15
4. Wiring
CAUTION
■
Before carrying out wiring, turn off the power to the controller and check that the cables to be
connected are not alive with a tester or the like because there is a possibility of electric shock.
Personnel who have basic electrical knowledge and practical experience must carry out wiring.
■
The controller must be wired directly from circuit breaker output on inside of temperature &
humidity Chamber for avoid damage of controller or temperature & humidity Chamber.
4-1. How to connect wires
4-1-1. Applicable power source cable : Vinyl insulation cable KSC 3304 0.9~2.0
㎟
4-1-2. Applicable tightening torques
Please use-tightening torque with insulating sleeve for M3.5 screws as shown in the following Figure:
4-1-3. Noise rejections
■
Reason making noise
(1) Relay and relay contact point (2) Solenoid coil, solenoid valve
(3) Power source line (4) Inductive load
(5) Invertors (6) Commentators of motor
(7) Phase-angle SCR (8) Wireless communication
(9) Welder (10) High-tension igniter, etc.
■
Solutions
When wiring, comply with the following to protect the controller from noise sources:
(1) Keep away the cables to the input circuit from the power supply
circuit or the grounding circuit as much as possible.
(2) Using a shielded cable is effective in avoiding noise from electrostatic induction. Connect a
shielded cable to the grounding terminal as required. Avoid two-point grounding.
(3) To avoid noise from electromagnetic induction, it is relatively
effective to mutually twist the input cables at regular short intervals.
5.
8m
m
or
less
5.
8m
m
or
l
ess
Φ3.0mm or more
Φ3.0mm or more
