Installation Instructions
PowerFlex DC Stand-Alone Regulator (SAR)
Fan Assembly
ATTENTION: Only qualified personnel familiar with DC drives and
associated machinery should plan or implement the installation,
start-up, and subsequent maintenance of the system. Failure to comply
may result in personal injury and/or equipment damage.
ATTENTION: To avoid an electric shock hazard, ensure that all power to
the SAR has been removed before performing the following.
ATTENTION: This SAR contains ESD (Electrostatic Discharge) sensitive
parts and assemblies. Static control precautions are required when
installing, testing, servicing, or repairing this assembly. Component
damage may result if ESD control procedures are not followed. If you are
not familiar with static control procedures, reference A-B publication
8000-4.5.2, “Guarding Against Electrostatic Damage,” or any other
applicable ESD protection handbook.
What This Kit Includes
Tools That You Need
What You Need to Do
• Two fans wired together with one wiring harness and plug
• Four self-tapping sheet-metal screws
• Static strap
• Phillips® screwdriver
• Hexalobular screwdriver
®
Phillips
The list below is an overview of the steps needed to remove and replace the fan
assembly. See each step for detailed procedures.
is a registered trademark of Phillips Screw Company.
1. Remove Power
2. Remove the Fan Assembly
3. Install the New Fan Assembly
4. Document the Change
23P-IN006A-EN-P
Step 1: Remove Power
ATTENTION: Remove power before making or breaking cable
connections. When you remove or insert a cable connector with power
applied, an electrical arc may occur. An electrical arc can cause
personal injury or property damage by:
• sending an erroneous signal to your system’s field devices, causing
unintended machine motion
• causing an explosion in a hazardous environment
Electrical arcing causes excessive wear to contacts on both the module
and its mating connector. Worn contacts may create electrical resistance.
Remove and lock-out all incoming power to the SAR.
Step 2: Remove the Fan Assembly
=
L1 L2 L3
I
O
1. Remove the cooling vent mounting screws (4) on top of the SAR, and save
for reassembly.
2. Disconnect the fan plug from the XV connector on the switching power
supply circuit board.
3. Remove the cooling vent and fan assembly from the chassis.
4. Remove the fan assembly mounting screws (4), and save for reassembly.
Fan Plug (behind
the vent, not shown
in this figure)
Fan Assembly
Mounting Screws (4)
Tightening torque:
3.0 N•m (26.5 lb•in)
Cooling Vent Mounting
Screws (4)
Tightening torque:
1.0 N•m (8.9 lb•in)
2 Rockwell Automation Publication 23P-IN006A-EN-P - June 2011
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