HUAYUAN SLG-200HF, Manual Instruction, Page: 28 / 53

21
○
5 RS485 communication cable
（
5-2
○
5
）
X4 at back of the power source communicate with the automatic equipment ,RS485 communication signal as:
X4 plug
Signal and function
1 Reservation
2 RS485 +
3 RS485 reference
4 Reservation
5 Connect machine cover
6 Reservation
7 RS485 -
8 Reservation
9 Reservation
○
6
～
○
13 integrated cable
（
5-2
○
6
～
○
13
）
Connect with the power source and arc initiator, same as drawing 5-2. Note: screw for
○
11 negative cable
connect must be fixed well.
○
14 Work cable
（
Earth cable
，
5-2
○
14
）
Screw must fixed well to reliably connect work cable and cutting power source, the other side of the cable
connect with the cutting table reliably
When work cable
（
≥30m
） ，
it will affect the cutting quality, so the square meter of the cable should enlarge
○
15 Torch cable
（
5-2
○
15
）
The cover of the arc initiator need to take away when install the torch cable, each terminal need connect
accordingly with the related connector, as following drawing show
Torch coolant return and supply connector same, customer need pay attention to the color different, wrong
connection will cause torch consumables lift short
○
16
～
○
18
Gas hose
（
5-2
○
16
～
○
18
）

Gas hose installation warnings
For different cutting procedure, the gas hose connection different