26
1.2
Rear panel illustration and parts number reference
Figure 6: Rear panel
1. Circuit breaker
The function of circuit breaker is to protect cutting machine by automatic trip to
turn-off power supply while the machine is overloaded or in failure. Normally, the circuit
breaker flipped to upward means power-on. Use switch on the switchboard to start or stop
cutting machine, avoiding using the circuit breaker.
2. Input power cable
It is 4-pin cable. The mixed-colored wire must be firmly grounded, the rest wires
connect to corresponding 3-phase power supply.
3. Compressed air filter
Connect to air compressor by gas hose for reducing gas pressure and filtering moisture
in the air. Adjust the knob to alter the output air pressure of filter, the values of air
pressure displaying at the air gauge are normally in the range of 0.6-0.8Mpa.The water
accumulated in the water trap should not touch on the filter element. Please let out the
accumulated water in time by releasing the valve on the bottom. Otherwise, the
accumulated water will enter the cutting torch, thus influencing arc starting and cutting
performance.
4. Specification plate
5. Cooling fan