SAMWONTECH
4th Edition of TEMI880 IM : Jan. 29. 2007 Page 9 / 119
1.4 Wiring
▶ 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. Person 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.
1.4.1 How to connect wires
1.4.1.1 Applicable power source cable
▶ Vinyl insulation cable KSC 3304 0.9~2.0 ㎟
1.4.1.2 Applicable tightening terminal
▶ Please use-tightening terminal with insulating sleeve for M3.5 screws as shown in the following Figure :
1.4.1.3 Noise rejections
■ Reason making noise
(1) Relay and relay contact point
(2) Solenoid coil, solenoid valve
(3) Power source line
(4) Inductive load
(5) Inverters
(6) Commutators 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.
CAUTION (Wiring)
Φ5.8mm or less
5.8mm or less
3.0mm or more
Φ3.0mm or more
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