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)
Φ5.8m
m
o
r
le
ss
5.8m
m o
r le
s
s
3.0mm or more
Φ3.0mm or more
