J. T. Eaton LCX9000 user manual 2 Basic and Option Board Connections of the Control Board

Models: LCX9000

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Figure 4-2: Basic and Option Board Connections of the Control Board

LCX9000 Liquid-Cooled Drives User Manual

B

A

C

D

January 2007

E

Figure 4-2: Basic and Option Board Connections of the Control Board

Usually, when the drive is delivered from the factory, the control unit includes at least the standard compilation of two basic boards (I/O board and relay board) which are normally installed in slots A and B. On the next pages you will find the arrangement of the control I/O and the relay terminals of the two basic boards, the general wiring diagram and the control signal descriptions. The I/O boards mounted at the factory are indicated in the catalog number.

The control board can be powered externally (+24V, ±10%) by connecting the external power source to either of the bidirectional terminals, #6 or #12, see Page 4-7. This voltage is sufficient for parameter setting and for keeping the fieldbus active.

Note: If the 24V inputs of several drives are parallel connected, we recommend using a diode in terminal #6 (or #12) in order to avoid the current flowing in opposite directions. This might damage the control board. See Figure 4-3.

+

#6

#7

+

#6

#7

+

#6

#7

+

#6

#7

External

+24V

Figure 4-3: Drives Connected in Parallel

4-2

For more information visit: www.EatonElectrical.com

MN04005001E

Page 60
Image 60
J. T. Eaton LCX9000 user manual 2 Basic and Option Board Connections of the Control Board, 3 Drives Connected in Parallel