HUAYUAN SLG-200HF, Manual Instruction, Page: 17 / 53

10
5)
Current display indicator
：
unit “A”
。
6)
Digital meter
：
display current, coolant flow, coolant temperature, error code and secondary menu
7)
Gas pressure indicator
：

Indicator always on
：
gas pressure normal

Indicator on 0.3s then off 0.3s
：
gas pressure shortage
（
<0.2MPa
） ，
machine can;t work

Indicator on 0.1s then off 0.1s
：
the machine have problem for pressure shortage before, but already recover to
normal, machine can work
8)
Coolant level indicator
：
indicator always on, the coolant level normal; Indicator on 0.3s then off 0.3s, the coolant level
not enough, machine can;t work
9)
Coolant flow indicator
：
indicator always on, the coolant flow normal; Indicator on 0.3s then off 0.3s, the coolant flow
not enough, machine can;t work
10)
Starting indicator: it lights on when the cutting is start;
11)
Over-heating indicator:

Indicator off: machine normal

Indicator on 0.3s then off 0.3s, the coolant temperature too high, or the inside parts IGBT over heat, machine
can;t work

Indicator on 0.1s then off 0.1s
：
the machine have problem for pressure shortage before, but already recover to
normal, machine can work
12)
Power abnormal indicator
：
indicator always off, machine normal; Indicator on 0.3s then off 0.3s, machine lack phase
or over voltage or lack voltage, machine can;t work
13)
Current adjusting knot: it adjust the cutting current; under the secondary menu, to adjust the secondary menu
parameter
14)
Gas check indicator
：
turn on the gas check, the indicator on
15)
Gas check knob
：
on/off the gas check function
16)
Power switch
：
SLG-200HF is breaker control on/off, SLG-300HF
、
SLG-400HF is urgent stop knob, press this knob, power
off, turn the knob clockwise, power on
17)
Coolant liquid inlet: Fulfill the coolant liquid;
18)
Coolant liquid outlet: discharge the coolant liquid;
19)
Plasma gas pressure adjust filter
：
Adjust the plasma gas(Air or N
2
) working pressure and filter the water
20)
Shield gas pressure adjust filter
：
Adjust the shield gas(Air or N
2
) working pressure and filter the water
21)
Plasma gas input connector
：
input plasma gas, it can be Air/ N
2
or O
2
according to the cutting requirements. When
input Air/ N
2
, it should through 19 filter, when input O
2
, customer need prepare good quality O
2
gas regulator to
adjust the gas pressure
22)
Shield gas input connector
：
input shield gas, it can be Air or N
2
according to the cutting requirements
23)
Ground connect screw
：
connect ground cable
24)
Three phase input power cable connector
：
connect three phase input power
25)
Control fuse
：
Control the circuit fuse
26)
Solenoid valve power supply fuse
27)
HF control fuse