Rockwell Automation Publication 20B-IN019E-EN-P - July 2013
65
PowerFlex 700 Adjustable Frequency AC Drive – Frames 0…6
Supplemental Information
Using PowerFlex Drives w/Regen Units
If a Regenerative unit (for example, 1336 REGEN) is used as a bus supply or
brake, the common mode capacitors must be disconnected as described on
page 43
.
Connections to the 1336 REGEN
Regen Brake Mode
Regenerative Bus Supply Mode
DC Input (Common Bus) and Precharge Notes
The following notes must be read and understood. Also refer to pages
26
through
30
for additional DC input information.
Important Application Notes
1.
If drives without internal precharge are used (Frames 5 & 6 only), then:
a. precharge capability must be provided in the system to guard against
possible damage, and
b. disconnect switches Must Not be used between the input of the drive
and a common DC bus without the use of an external precharge device.
2.
If drives with internal precharge (Frames 0…6) are used with a disconnect
switch to the common bus, then:
a. an auxiliary contact on the disconnect must be connected to a digital
input of the drive. The corresponding input (parameter 361…366)
must be set to “30, Precharge Enable.” This provides the proper
precharge interlock, guarding against possible damage to the drive
when connected to a common DC bus.
b. the drive must have firmware version 2.002 or above.
Frame(s)
Terminals
1336 REGEN
PowerFlex 700
0…4
DC+
BR1
DC–
DC–
5…6
DC+
DC+
DC–
DC–
Frame(s)
Terminals
1336 REGEN
PowerFlex 700
0…4
DC+
DC+
DC–
DC–
5…6
DC+
DC+ of Common Bus Drives
DC–
DC– of Common Bus Drives
