Model
1000
Installation and Operation Manual
Page
9
OFFICIAL 6/1/2001
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OW
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PHYSICALLY INSTALL THE MODEL 1000 DRIVE?
WARNING:
DANGEROUS HIGH VOLTAGES ARE NORMAL IN THIS EQUIPMENT! WHEN THE AC INPUT POWER IS
REMOVED, THE CAPACITORS ARE NOT DISCHARGED AT ONCE! WAIT FIVE MINUTES AND THEN CHECK
TO BE SURE THAT THE CAPACITORS ARE DISCHARGED BEFORE WORKING ON THE DRIVE.
WARNING! :
IF YOU TESTED THE DRIVE BEFORE INSTALLATION, CHECK THE BUS VOLTAGE. YOU WANT TO MAKE
SURE THAT THE BUS CAPACITORS HAVE DISCHARGED.
Mount a Model 1000 series drive of the NEMA 1 style with the fuses at
the top. Do not block air flow around the unit. Free air must flow up through
the fins on the back of the drive.
The temperature of the air around the drive (the ambient) must not
exceed 40°C (104°F) with a relative humidity of 95% or less.
Leave at least 6 inches (150 mm) of open space on all sides of the
NEMA 1 box. Do not mount it directly above a heat source, such as another
drive. If you mount two drive units in line vertically, there must be at least 18
inches (450 mm) of open space between the units.
When you move the Model 1000 series drive chassis to an enclosure,
DO NOT handle the chassis by parts that may bend or come loose. This
applies to the front cover of the drive. Support the chassis by the outside
edges of the heatsink.
Mount the chassis style Model 1000 series drive in an upright position (fuses at
top) inside an enclosure. Mount the chassis this way to promote cooling air flow
through the heatsink fins.
The temperature of the air around the chassis (ambient) may not exceed 55 °C
(131 °F). Relative humidity should be 95% or less, non-condensing.
Avoid mounting one chassis directly above another. This will result in hot air from
the lower chassis flowing up into the upper chassis. Leave at least 12 inches (300
mm) of open space between them.
There must be a minimum free panel space of 3 inches (75 mm) above and
below the chassis. This allows proper air flow through the heatsink fins.
The total heat dissipation within the electrical enclosure, for chassis units,
determines the size. There is a list of the heat output of the Model 1000 series drives
in the table on page 10.
NEMA 1, NEMA 1A, and NEMA 12 ventilated boxes depend upon air flowing
through the enclosure for cooling. They must have an air flow of 1 CFM (cubic feet
per minute) per 10 watts of dissipation (1 cubic meter/minute per 350 watts).
The allowance for totally enclosed units is 1 square foot of enclosure surface per
7 watts of dissipation (75 watts per square meter). Surface area includes front, sides,
top and bottom surface areas. Enclosure surfaces not exposed to cooling air do not
count.
For further information, consult the publication THERMAL MANAGEMENT,
available from your distributor.
Use of the Model 1000 Series drive above 3300 ft (1000 meters) requires de-rating.
If the drive is to be stored, store it in its original packaging in a dry environment.
Storage temperature should be between -40°C and +65°C.
Mount with 1/4-20 bolts
and nuts in 4 places
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