Multi-drive protection – Rockwell Automation 1336T Wiring and Grounding Guide, (PWM) AC Drives User Manual
Page 43

Rockwell Automation Publication DRIVES-IN001M-EN-P - March 2014
43
Power Distribution Chapter 2
Multi-drive Protection
Use a separate line reactor for each drive that shares a common power line.
Individual line reactors provide filtering between each drive to provide optimum
surge protection for each drive. However, if it is necessary to group more than one
drive on a single AC line reactor, use this process to verify that the AC line
reactor provides a minimum amount of impedance:
•
In general, up to five drives can be grouped on one reactor.
•
Add the input currents of the drives in the group.
•
Multiply that sum by 125%.
•
Refer to 1321 Power Conditioning Products Technical Data, publication
rating greater than the multiplied current.
1336 PLUS,
PLUS II
IMPACT
FORCE
C250
600
187 (250)
2500
3R250-B
0.09
250
C300
600
224 (300)
3000
3R320-B
0.075
320
C350
600
261 (350)
3000
3R400-B
0.06
400
C400
600
298 (400)
4000
3R400-B
0.06
400
C450
600
336 (450)
4500
3R500-B
0.05
500
C500
600
373 (500)
5000
3R500-B
0.05
500
C600
600
448 (600)
5000
3R600-B
0.04
600
C650
600
(650)
5000
3R750-B
0.029
750
C700
600
(700)
5000
3R850-B FN-1
0.027
850
C800
600
(800)
5000
3R850-B FN-1
0.027
850
CP/CPR350
600
261 (350)
N/A
N/A
N/A
N/A
CP/CPR400
600
298 (400)
N/A
N/A
N/A
N/A
(1) Shaded rows identify drive ratings without built-in inductors.
(2) Maximum suggested KVA supply without consideration for additional inductance.
(3) 2000 KVA represents 2 MVA and greater.
(4) N/A = not available at time of printing.
Table 13 - AC Line Impedance Recommendations for Bulletin 1336 Drives (Continued)
Drive
Drive Catalog
Number
(1)
Volts
kW (Hp)
Max Supply
kVA
(2)(3)
3% Line Reactor
Open Style, 1321-
Reactor Inductance
(mH)
Reactor Current
Rating (amps)
(4)
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