Where This Kit Is Used
Table A Maximum DC Bus Capacitance with Existing Precharge
Input Voltage
Frame Size
Drive's Internal DC Bus Capacitance (µF)
Maximum External DC Bus Capacitance (µF) 19,150
Maximum Total DC Bus Capacitance (µF)
Table B Maximum DC Bus Capacitance with Precharge Kit Plus Existing Precharge
Input Voltage
Frame Size
Drive's Internal DC Bus Capacitance (µF)
Maximum External DC Bus Capacitance (µF) 89,851
Maximum Total DC Bus Capacitance (µF)
®
PowerFlex
700L Frame 3A and 3B Input Filter
Precharge Resistor Kit (20L-RESPRE-A1)
ATTENTION: To avoid an electric shock hazard, ensure that all
!
power to the complete drive cabinet has been removed before
performing any steps of these instructions.
ATTENTION: To avoid an electric shock hazard, verify that the
!
voltage on the bus capacitors has completely discharged before
performing any work on the complete drive cabinet. After
removing power, wait 5 minutes for the power module bus
capacitors to discharge. Remove the lower front cover of the
power module. Measure the DC bus voltage at the DC+
TESTPOINT and DC- TESTPOINT sockets on the front of the
power module. The voltage must be zero.
ATTENTION: HOT surfaces can cause severe burns. Do not
!
touch the heatsink surface during operation of the power module.
After disconnecting power allow time for cooling.
ATTENTION: The complete drive cabinet contains ESD
!
(Electrostatic Discharge) sensitive parts and assemblies. Static
control precautions are required when installing, testing,
servicing or repairing the complete drive. Component damage
may result if ESD control procedures are not followed. If you are
not familiar with static control procedures, refer to Allen-Bradley
publication 8000-4.5.2, "Guarding Against Electrostatic
Damage" or any other applicable ESD protection handbook.
This kit can only be used with PowerFlex 700L Frame 3A and 3B complete
drives. It is used to increase the precharge power capacity of the drive. This
kit may be required when powering another drive from the DC bus of a
Frame 3A or 3B complete drive. Only one kit per drive is permitted. See the
tables below for comparisons of maximum DC bus capacitance.
400V AC
3A
3B
16,200
32,400
38,301
35,350
70,701
400V AC
3A
3B
16,200
32,400
109,002 57,447
106,051 141,402 73,647
Installation Instructions
480V AC
600V AC
3A
3B
3A
3B
16,200
32,400
10,800
21,600
8,349
16,698
4,911
9,823
24,549
49,098
15,711
31,423
480V AC
600V AC
3A
3B
3A
3B
16,200
32,400
10,800
21,600
65,796
36,334
41,245
98,196
47,134
62,845
690V AC
3A
3B
10,800
21,600
1,080
2,160
11,880
23,760
690V AC
3A
3B
10,800
21,600
24,840
25,920
35,640
47,520
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