Acer Dynamic 1722S, Руководство по эксплуатации

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3. ELECTRICAL CIRCUIT CONTROL
3-1 Electrical Wiring
The electrical control box can be found by opening its cover at the back side of bed. Connect
the power source wires to the connecting points (R.S.T)
The wire-grade for the power
source and the connecting points must be
more than cross sectional area of 8mm 2 (5.5
mm
2
for 460V or 18” series).
The main switch between machine
and power source also should be equipped
with fuse-breaker. Besides, the machine
must be connected to ground.
Figure 3-1
3-2 Electrical Equipment
1. The electrical control box is also equipped with overload circuit breaker and electric magnetic
contactors to protect motors from current overload.
2. The main switch is connected with micro switch.
3. The foot brake is connected to a micro switch. Stepping on the footbrake is quicker to stop the
lathe than turning off the spindle on/off switch. The spindle will rotate again by lifting the spindle
control lever.
4. The spindle will run continuously as long as the jog button on the top of the electrical panel is
pressed.
3-3 Electrical Cautions
After power connection, please check the rotation of the spindle. Turn the main switch “ON” and
make sure the safety of spindle. Then push jog button (T) momentarily. The correction direction of
the spindle rotation is counter clockwise. (Please look from tailstock end to the spindle side.) Wrong
direction of rotation can be rectified by interchanging any two of the three phase wires (R.S.T.) in
the power source.