Drive – Rockwell Automation 1325L DC Motors, Frames C210ATZ - C440ATZ User Manual

Page 9

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DC Motors

9

Important: Vertical mount hand hole covers are required to provide

protection to vertically mounted Drip-Proof motors. Stock
motors and other motors designed for horizontal mounting
can be adapted for vertical mounting by ordering vertical
mount hand hole covers from Allen-Bradley.

Motor C-Face is intended for mounting auxiliary equipment such as
pumps, gears, etc. When mounted horizontally, these motors should
be supported by the feet and not by the C-Face. Installations requiring
a horizontally mounted motor without feet should use a D-Flange. In
addition, frame sizes C2515AT and C2815AT require additional
support.

Direction of Rotation

Unless otherwise ordered, brush rigging is assembled for NEMA
standard direction of rotation, counterclockwise for motors and
clockwise for generators facing the commutator end. These motors
will operate in either direction of rotation, without changing the angle
of the brush holders for normal field weakened speed ranges.
Extended field weakened speed range motors should have the
direction of rotation specified.

Drive

C210ATZ-C320ATZ frame motors are supplied with a shaft suitable
for a belt or coupled drive.

C400ATZ and C440ATZ frame sizes will be supplied with a short
shaft for coupled drives unless specified for belt duty.

Proper alignment is a key step for long life of bearings, shafts and
belts, and minimum downtime. Misalignment can cause excessive
vibration and damaging forces on shaft and bearings. For direct
coupled drives, flexible couplings facilitate alignment. For belt drives,
the sheave must be placed as close as possible to the motor bracket.

!

ATTENTION: Surface temperature of the motor enclosure
may reach temperatures which can cause discomfort or
injury to personnel coming into contact with hot surfaces.
The user must apply appropriate guards and/or shields to
protect against accidental contact with motor surface.
Failure to observe this precaution may result in personal
injury.

!

ATTENTION: To guard against personal injury and/or
machine damage caused by incorrect motor rotation, verify
direction of motor rotation before coupling motor to load.

!

ATTENTION: Ensure that all guards are properly
installed, to guard against personal injury caused by contact
with rotating parts,

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