PowerTec Regenerative Brushless DC Motor Control 1000AR - Manual (Page 12)

Model 1000AR Installation and Operation Manual P AGE
11
OFFICIAL 6/4/2001
HO W DO I …
PHYSI CALLY I NSTALL THE M O DEL 1000AR DRI VE?
Use of the Model 1000AR 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.
WARNING: DANGEROUS HIGH VOLTAGES ARE NORMAL IN THIS EQUIPMENT! WHEN THE AC INPUT POWER IS
REMOVED, THE CAPACITORS ARE NOT DISCHARGED AT ONCE! BE SURE INPUT POWER IS OFF
AND CAPACITORS ARE DISCHARGED BEFORE WORKING ON THE MOTOR OR THE DRIVE.
WARNING! : IF YOU TESTED THE DRIVE BEFORE INSTALLATION MAKE SURE THAT THE BUS HAS DISCHARGED.
Mount a Model 1000AR drive of the NEMA 1 style with the fuses at the top.
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) open space on all sides of a NEMA1
box. Do not mount it directly above a heat source, such as another drive. There
must be at least 18 inches (450 mm) open space between the units.
When you move a drive chassis, DO NOT handle the chassis by parts that
may bend or come loose. This applies to the front cover of the drive.
Mount the chassis style Model 1000AR drive in an upright position (fuses
at top) inside an enclosure to promote air flow through the heatsink.
The temperature of the air around the chassis unit may not exceed 55 °C
(131 °F). Relative humidity must be 95% or less, and 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 free panel space of at least 3 inches (75 mm) above and
below the chassis.. This allows air flow through the heatsink fins.
The total heat dissipation within the electrical enclosure determines its size.
A list of heat outputs of the Model 1000AR is in the table on page 6.
NEMA1 and NEMA12 ventilated boxes depend on 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 cu meter / min 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 surfaces. Enclosure surfaces not exposed to cooling
air do not count.
For further information, consult the publication THERMAL MANAGEMENT,
available from your distributor.
If a separate bus loader has been supplied, mount it on the panel near the drive. Mount it with the fins
vertically oriented, and make sure that air can flow through its heatsink.
Bus Loader Resistors become VERY HOT in the performance of their duty. Bus loader resistors
must be mounted OUTSIDE THE ENCLOSURE in a dry, well ventilated area, where there are no
flammable materials. Bus loader resistors are supplied in an expanded metal cage for wall mounting.
M O DEL 1000AR AC I NPUT ELECTRI CAL RATI NG S
Mount with 1/4-20 bolts
and nuts in 4 places
R+ R-
R
+
R-