Idiomas disponibles
Idiomas disponibles
Mini Mill
Power Supply
Haas Circuit Breaker
If service run from elec. panel is less than 100' use: 1PH - 8 GA WIRE / 3PH -
If service run from elec. panel is more than 100' use: 1PH - 6 GA WIRE / 3PH -
WARNING!
A separate earth ground wire of the same conductor size as the input power
is required to be connected to the chassis of the machine. This ground wire is
required for operator safety and for proper operation. This ground must be sup-
plied from the main plant ground at the service entrance, and should be routed
in the same conduit as the input power to the machine. A local cold water pipe,
or ground rod adjacent to the machine cannot be used for this purpose.
Input power to the machine must be grounded. The machine will not function
properly on ungrounded power.
The maximum voltage leg-to-leg or leg-to-ground should not exceed 260 volts.
p
c
ower
onnection
The Mini Mill can be powered from either 3 Phase
208 Wye Power (Neutral Grounded) or Single Phase
240V. In either case, a separate ground wire of the
same size as the main conductors must be provided
in the power cable.
1. With the main circuit breaker in the OFF position
(rotate the shaft that connects to the breaker coun-
terclockwise), hook up the power lines to the termi-
nals on top of the main circuit breaker. Connect the
separate ground line to the ground bus to the left of the circuit breaker.
NOTE: For Single Phase operation, only terminals L1 and L3 of the circuit
breaker are used. L2, the center connection, should be left open.
CAUTION! Make sure that the main circuit breaker is in the OFF
position BEFORE changing the following transformer connections.
2. T5 is a small transformer mounted on the power supply assembly next to the
main circuit breaker. This transformer supplies 24VAC to energize the main
contactor. This transformer has two input connectors located about two-inches
from the transformer that allow it to be connected to either 240V or 200V. If the
incoming power is 220-250 VRMS, use the 240V connection. If the incoming
power is 187-219 VRMS, use the 200V connection. Failure to use the correct
input connector will result in either overheating of the main contactor or failure
to reliably engage the main contactor.
4
Voltage Requirement
208 3PH / 240V 1PH ±10%
40 AMP
40 AMP
10 GA WIRE
8 GA WIRE
Ground
Line
L1
L2 L3
Main
Circuit
Breaker
96-0038 Rev M
August 2010
