Rockwell Automation LiquiFlo 1.0 and 1.5 External Bus Resistor Kit (1200 Amp) User Manual

Rockwell Automation Equipment

What the Kit
Contains

External Resistor Kit M/N 180788-A04 can be used only with D-frame (1200A)
LiquiFlo AC drives, model numbers: 120L4060 and LF151200W4. Verify that you
have the correct resistor assembly by verifying that the harness is labeled, “1200AMP
EXT BUS RESIS KIT.”

This kit is for field upgrade only. You should not use it if you are replacing the drive. If
you replace the drive in the future, you should remove the resistor kit from the drive
system.

ATTENTION: Only qualified electrical personnel familiar with the construction and operation of this
equipment and the hazards involved should install, adjust, operate, or service this equipment. Read and
understand this manual and other applicable manuals in their entirety before proceeding. Failure to
observe this precaution could result in severe bodily injury or loss of life.

ATTENTION: Do not install or remove modification kits with power applied to the drive. Disconnect
and lock out incoming power before attempting such installation or removal. Failure to observe this
precaution could result in severe bodily injury or loss of life.

ATTENTION: DC Bus capacitors retain hazardous voltages after input power has been disconnected.
After disconnecting input power, wait five (5) minutes for the DC bus capacitors to discharge and then
check the voltage with a voltmeter to ensure that the DC bus capacitors are discharged before touching
any internal components. Failure to observe this precaution could result in severe bodily injury or loss of
life.

ATTENTION: The user is responsible for conforming with all applicable local, national, and
international codes. Failure to observe this precaution could result in damage to, or destruction of, the
equipment.

ATTENTION: The drive contains ESD- (Electrostatic Discharge) sensitive parts and assemblies. Static
control precautions are required when installing, testing, servicing or repairing the drive. Erratic machine
operation and damage to, or destruction of, equipment can result if this procedure is not followed.
Failure to observe this precaution could result in severe bodily injury or loss of life.

Quantity:

Description

Resistor Assembly

M4 x 16 Mounting Screws with captive locking hardware

Protective Cover

Drilling Template / Cabinet Guard

External Bus Resistor Kit

for LiquiFlo AC Drives

Drive M/N’s 120L4060, LF151200W4

Instruction Manual D2-3537