DeWalt DC841 Instrukcje Operacyjne Pobierz pdf (Strona 5)

Electrical Hookup -

Recommended Copper Wire Sizes (A.W.G.)

To obtain maximum efficiency from your saw motor, the feeder wire from the power source to the machine should comply

with the table below.

1 Phase 3 Phase 3 Phase

Motor Horsepower

200-240 V 200-240 V 440-480 V

6 6 —

3 — 4 6

NOTE: This table is based on 60-100’ distances from power supply. Less than 60’ may use one even size smaller (high number

= smaller size); 100-160’ use one even size larger, over 160’ use two even sizes larger.

Connecting Electrical Current

The motor is properly connected to the magnetic switch at the factory for operation on the electrical voltage specified on the tag

attached to the guard stud. Make sure incoming voltage from your power supply conforms to the voltage specified on the tag.

Remove the magnetic switch cover and insert power supply cable through the dust proof fitting. Connect wires to L1, L2 and L3

for 3 phase; L1 and L2 for single phase (See below left). The capped wires leading from the transformer should remain

capped. Do not attach power to the transformer. Attach the ground wire to the ground lug inside the switch enclosure. Wiring

must conform to the National Electrical Code and any applicable local codes.

Check Arbor Rotation (3 Phase Only)

Check arbor rotation with arbor nut and arbor collars removed. Open line disconnect to the saw to remove arbor nut and col-

lars, close the line disconnect and start saw. The rotation of the arbor must be clockwise as indicated on the arrow on the

nameplate. If the rotation is counterclockwise, the incoming wires are not properly connected to the switch box. To change the

direction reverse any two of the wires leading to the switch box from the power supply.

Changing Voltage on dual voltage motors

and Resetting Thermal Protection

Dual voltage motors can be operated on either of the two voltages indicated on the motor nameplate. The voltage setting from

the factory can be found on the tag attached to the guard stud. To change the voltage:

1. Change the motor lead connections as shown on the diagram on the inside cover of the motor conduit box. This is also

found on pages 24-25 in this manual. Disconnect and lockout the power supply before attempting voltage change.

2. Reconnect the transformer in the magnetic starter as shown in the diagram on the inside of the starter box cover. This is

also found on pages 25 of this manual.

3. Replace or adjust the thermal overload protectors (D) using dial (A), see below right) with those rated at the desired am-

perage range. See page 24 of this manual. Dial (B) changes the thermal reset from automatic to manual. In automatic

operation the thermals automatically reset after cooling; to proceed push the start button. If set to manual the reset but-

ton (C) will need to be pushed in to resume operation.

4. Contact your dealer for correct thermal overload protectors.

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DeWalt DC841 Instrukcje Operacyjne Strona 5