Publication 2094-UM001A-EN-P — September 2006
40 Planning the Kinetix 6000 Drive System Installation
External Shunt Resistor
Observe the following guidelines when mounting your external shunt
resistor outside the enclosure:
• Mount circuit components and wiring in the very dirty zone or in
an external shielded enclosure. Run shunt power and fan wiring
inside metal conduit to minimize the effects of EMI and RFI.
• Mount resistors (other than metal-clad) in a shielded and
ventilated enclosure outside the cabinet
• Keep unshielded wiring as short as possible. Keep shunt wiring as
flat to the cabinet as possible.
• Route thermal switch and fan wires separate from shunt power.
External Shunt Resistor Outside the Enclosure
C
D
D
D
D
D
VD
C
VD
D
1394 Digital Servo Controller
300W Shunt Module
BULLETIN 1394 300W SHUNT MODULE
ALLEN-BRADLEY
FOR USE WITH 1394-SJT22-X SYSTEM MODULE
CAT. PART SER.
INPUT DC INPUT AC
FOR FUSE REPLACEMENT USE:
BUSSMAN CAT. NO.
R
(1)
Line Interface Module
Kinetix 6000
System
Dirty Wireway
Clean Wireway
Motor Power Cables
Very Dirty Connections Segregated
(not in wireway)
Customer-supplied
Metal Enclosure
150 mm (6.0 in.)
clearance (min) on all four
sides of the shunt module.
Enclosure
2094-BSP2
Shunt Module
Shunt Power Wiring Methods:
Twisted pair in conduit (1st choice).
Shielded twisted pair (2nd choice).
Twisted pair, two twists per foot (min) (3rd choice).
Metal Conduit
(where required
by local code)
I/O and Feedback Cables
Shunt thermal Switch and Fan Wires (when present)
No sensitive
equipment within
150 mm (6.0 in.).
Route 24V dc I/O
shielded cable.
Route encoder/analog/registration
shielded cables.
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