Rockwell Automation 20D PowerFlex 700 Installation Instructions - Frames 7…10 - Manual (Page 62)

62 Rockwell Automation Publication 20B-IN014H-EN-P - June 2013
PowerFlex 700 Adjustable Frequency AC Drive – Frames 7…10
Supplemental Information DC Input (Common Bus) and Precharge Notes
The following notes must be read and understood.
Important Application Notes
1. If drives without internal precharge are used (Frame 10 700 Hp 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 7…9) 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 option 30, “Precharge Enable.” This provides the proper
precharge interlock, guarding against possible damage to the drive
when connected to a common DC bus, and …
b. an auxiliary contact on the disconnect must also be connected to TB1
on the Precharge Board. Set JMP1 to the voltage being used and JMP2
to “Interlock.”
3. Set jumpers on the Precharge Board as shown below:
Jumper Setting Description
JMP1 1-2 24V DC input
2-3 (1)
(1) Default setting.
120V AC Input
JMP2 1-2 Interlock
2-3 (1) Bypass
JMP3 1-2 Do Not Use
2-3
(1)
Bypass
JMP3 (W3) JMP2 (W2) JMP1 (W1)
TB1
1
2
3
1
2
3