FXV3/CXVT Rigging & Assembly Instructions
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Accessory Installation
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ENDURADRIVE
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Fan System Installation
The ENDURADRIVE
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Fan System is optional for select Series FXV3 and CXVT models. The ENDURADRIVE
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Fan System
variable frequency drive (VFD) is to be installed per the N5350 Cooling Tower Drives User’s Guide available at
www.abb.com. The fan motor must be wired directly into the VFD and cannot be wired across the line. For wiring details, refer
to the submittal drawings.
Warnings for the ENDURADRIVE
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Fan System
: ENDURADRIVE
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Fan System motors can induce voltage and current in the motor leads by
rotating the motor shaft, even when the motor is completely disconnected from the power source, which can lead to
severe bodily injury or death from electrical shock. Mechanically lock or tie down the fan until all wiring has been
completed and before servicing the drive system, or when performing any motor maintenance procedure.
: Magnetic and electromagnetic fields in the vicinity of current carrying conductors and
ENDURADRIVE
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Fan System motors can result in a serious health hazard to persons with cardiac pacemakers, metal
implants, and hearing aids. To avoid risk, stay away from the area surrounding the ENDURADRIVE
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Fan System
motor.
: The ENDURADRIVE
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Fan System variable frequency drive may apply hazardous voltages to
the motor leads after power to the controller has been turned off. To avoid the risk of severe bodily injury or death from
electrocution, verify that the controller is incapable of delivering hazardous voltages and that the voltage at the motor
leads is zero before servicing the drive system, or when performing any motor maintenance procedure.
Important Notes for the ENDURADRIVE
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Fan System
•
VFD must be powered on at all times so that trickle current can remove moisture from motor when idle.
•
Use only a shielded motor power cable with a complete circumferential braided or copper film/tape ground jacket around
the power leads. This ground should be secured to the motor frame from within the motor terminal box and must return
without interruption to the drive ground.
•
To prevent equipment damage, be sure that the electrical service is not capable of delivering more than the maximum
motor rated amps listed on the rating plate.
