26
E-AC Drive Hardware Installation Guide Chapter 2 – Installation
as metal shavings or grinding dust, can damage the E-AC Drive and
motor. Do not allow contaminants to come into contact with the drive or
motor.
PANEL LAYOUT
Follow these minimum spacing and clearance requirements when you
mount multiple E-AC Drives.
0.50
(12.7)
Minimum
Clearance
0.25
(6.4)
Minimum
Clearance
1.00
(25.4)
Minimum
Clearance
1.00
(25.4)
Minimum
Clearance
SERIES
DRIVE I/O
MOTOR
PWR/FLT
Compumotor
L1
N
A +
A -
B +
B -
120V
SERIES
DRIVE I/O
MOTOR
PWR/FLT
Compumotor
L1
N
A +
A -
B +
B -
120V
2.39
(60.7)
Minimum
Dimensions in
inches (millimeters)

Panel Layout Dimensions

6 – MOUNT THE MOTOR
Use flange bolts to mount rotary step motors. The pilot, or centering flange
on the motor’s front face, should fit snugly in the pilot hole.
Do not use a foot-mount or cradle configuration, because the motor’s
torque is not evenly distributed around the motor case. When a foot
mount is used, for example, any radial load on the motor shaft is multi-
plied by a much longer lever arm.
Step Motors can produce very high torques and accelerations. If the
mounting is inadequate, this combination of high torque/high accelera-
tion can shear shafts and mounting hardware. Because of shock and
vibration that high accelerations can produce, you may need heavier
hardware than for static loads of the same magnitude.
Under certain move profiles, the motor can produce low-frequency vibra-