Control Board Power-Up

LCX9000 Liquid-Cooled Drives User Manual

January 2007

Control Board Power-Up

The control board can be powered (+24V) in two different ways: either 1) directly from the power board ASIC, terminal X10; or 2) externally using the customer’s own power source. This voltage is sufficient for parameter setting and for keeping the fieldbus active.

By factory default, the control unit is powered using the terminal X10 on the power board. However, if an external supply is used to power up the control unit, a load resistor must be connected to terminal X10 on the power board. This applies to all chassis CH61.

Notice

IMPORTANT NOTE FOR CHASSIS CH3, CH4 and CH5: If you power the control board from the power board be sure to connect the cable to the correct terminal. Terminal J2 on the power board is reserved for this purpose. Do not connect the cable to terminal J1.

See Figures 4-4 and 4-5.

Figure 4-4: Connection of Control Board Cable from the Power Board

WRONG: Terminal J1 (Upper)

MN04005001E

For more information visit: www.EatonElectrical.com

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J. T. Eaton LCX9000 Control Board Power-Up, See Figures 4-4 and, 4 Connection of Control Board Cable from the Power Board