Rockwell Automation RELIANCE ELECTRIC SP500 - 3.1.2 Providing Proper Air Flow Clearances; 3.2 Wiring Requirements; 3.2.2 Recommended Power Wire Sizes

3.1.2 Providing Proper Air Flow Clearances
Be sure there is adequate clearance for air ventilation around the drive. For best air
movement, do not mount SP500 drives directly above each other. Note that no
devices are to be mounted behind the drive. This area must be kept clear of all control
and power wiring. See table 3.1 for listing of the recommended air flow clearances.
Table 3.1 — Air Flow Clearances
Enclosure
A B Cc D
Minimum distance from the sides of the drive if adjacent to non-heat 51mm |}102 mm| 102 mm} 102 mm
producing equipment
(2’) (4’) (4°) (4’)
Minimum distance from the top and bottom of the drive if adjacent to 102 mm/102 mm] 102 mm| 102 mm
non-heat producing equipment (4”) (4”) (4”) (4”)
Minimum distance from the sides of the drive if adjacent to other drives 51 mm 102 mm] 102 mm| 102 m
(2”) (4”) (4”) (4”)
Minimum distance from the top and bottom of the drive if adjacent to 254 mm| 254 mm] 254 mm} 102 m
other drives
(10”) (10) (10) 4)
3.1.3
3.2
3.2.1
3.2.2
Verifying the Drive’s Power Loss Rating
When installing an SP500 drive inside of another enclosure, you should consider the
drive’s watts loss rating shown in table 2.2. This table lists the typical full load power
loss watts value under all operating carrier frequencies. Ensure adequate ventilation is
provided based on the drive’s watts loss rating.
Wiring Requirements
Evaluate the following areas of drive wiring before you do the installation: size of
available conduit, size of power and control wiring, and motor lead lengths.
Verifying Conduit Sizes
Itis important to determine the size of the conduit openings accurately so that the wire
planned for a specific entry point will fit through the opening. Figures 4.1 through 4.4
show conduit opening sizes.
Recommended Power Wire Sizes
Size input power wiring according to applicable codes to handle the drive’s
continuous-rated input current. Size output wiring according to applicable codes to
handle the drive’s continuous-rated output current. Tables 3.2, 3.3, and 3.4 provide
recommended power wiring sizes. Use only copper wire with a minimum temperature
rating of 60/75°C. Table 3.5 contains the recommended tightening torque values for all
power wiring terminals.
3-4 SP500 AC Drive Installation and Operation Manual Version 3.1