Haas TL-1 Operator's page 8

Connecting the Toolroom Lathe to Power
1. Ensure the main circuit breaker is in the OFF position. Connect the power
lines to the top terminals 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 circuit breaker terminals L1
and L3 are used.
2. T5 is the small transformer mounted on the power supply assembly next to
the main circuit breaker. Two input connectors allow it to be connected to either
240V or 200V. If incoming power is 220-250 VRMS, use the 240V connection.
If incoming power is 187-219 VRMS, use the 200V connection. Failure to use
the correct input connector results in either overheating of main contactor or
failure to reliably engage the main contactor.
3. The main power transformer is located at the bottom-right corner of the
control cabinet. It also has two different input connections located at terminal
board TB2. If incoming power is 187-215 VRMS, connect wire 74 to the 208V
position (center). If incoming power is 216-250 VRMS, connect wire 74 to the
240V position (left).
4. Turn main circuit breaker ON and press control panel Power-On button.
Verify 320V Power Supply fault indicator displays "1" (normal power-up se-
quence). Verify DC bus voltage on pins 6 & 7 is approximately 335VDC if
powered from 240V, or closer to 290V if powered from 208V. If voltage is not at
least 260VDC, call Service Department.
5. Turn the main circuit breaker Off, close the door, lock the latches and turn
the power back on.
6 96-0112 Rev W
July 2010