Rockwell Automation 1336T Master/Slave Parallel AC Drv - Manual (Page 15)

1336 FORCE-5.19 – August, 2000
Mounting and Wiring Your 1336 FORCE Master/Slave Drive 2-3
Distance Between the Motor and the Drive
Distance requirements for motor cables on a 1336T Drives are the
same as with a standard G or H frame FORCE Drive. Follow the
recommendations in Chapter 2 and Appendix A of the 1336 FORCE
User manual on motor cable size, type and cable termination issues.
Grounding
Grounding for the 1336 FORCE Master/Slave Drive is primarily the
same as for a standard G or H unit. Ground the Master and the Slave
independently following the recommendations in Chapter 2 of the
FORCE User Manual and in the Motor Setup instructions in this
chapter.
Note: Encoder grounding varies slightly from the standard drive in
relation to cable shield grounding. Follow the recommendations in the
Encoder Setup instructions in relation to cable shield grounding for
the Slave drive.
Note: Grounding for the Dual winding induction motor is covered in
the Motor Setup section in this chapter.
Encoder Setup
Encoder signals should be run to the Master Drive Main Control
Board TB10. From the master drive, the A, A Not, B and B Not
signals should be daisy chained to the slave drive with twisted,
shielded pairs. The encoder wiring should be routed with the
Interconnect cable through the ferrite cores at the top of each cabinet.
The encoder faults MUST be enabled for both drives (i.e. parameter
88, bit 0 set) for encoder operation. Terminate the shields at the
Master drive only. DO NOT terminate the shields at the Slave drive.
Common Bus
The DC Bus is critical and must be hard wired between the two
drives. The Master and Slave drives must be set up for common bus
(or shared bus) operation. Each drive should have its own precharge
circuit.
Encoder
A
A
B
B
+12 V
Common
Shield
TB10
7
6
5
4
3
1
2
Master
To
TB10
Slave
Drive
Drive