Procedure - Emerson Epsilon Eb Series Reference Manual

Epsilon Eb and E Series EN Drives Reference Manual
• Motor power cable (CMDS or CMMS).
• Motor feedback cable (CFCO).
• Terminal strip (18 position suggested) to conveniently connect the motor power and
encoder wires during testing.
• Method to securely hold the motor during operation (a vise or large C-clamp).

Procedure

The steps required to assemble a servo system consisting of a drive, and a non-EMERSON
Motion Control motor are listed below:
1. Determine if your motor is compatible with the drive by verifying its characteristics.
There are a number of restrictions such as encoder line density and motor pole count that
must be considered. Most of these parameters are commonly found on a motor data sheet
and some may have to be determined by testing.
It is important that the encoder used have a repeatable Z channel angle with reference to
one of the commutation channels. This is especially the case if you will be using the same
encoder on several motors and you wish to use the same setup file on them all. Otherwise
you will need to generate a motor file for each individual motor/encoder.
2. Design and assemble the cabling and interface circuitry required to connect the motor
and drive. Motor and feedback cables must be properly shielded and grounded.
3. Determine the encoder alignment. In order to commutate a motor correctly the angular
relationship of the encoder commutation tracks and the marker pulse with respect to the
R, S and T windings in the stator must be known.
4. Enter the motor/encoder data into the MOTOR.DDF file. This data is then read by the
PowerTools software when setting up the drive.
5. Test your system to verify that the servo system is working correctly.
Step 1: Motor Wiring
The first step is to wire the motor terminals to the drive. EMERSON Motion Control
designates the motor terminals as R, S and T.
Use the following procedure to establish the R, S and T mapping:
1. Assume the motor terminals of the non-EMERSON Motion Control motor are
designated A, B and C. If they are not marked, name the terminals randomly. The next
steps will determine their working designations.
2. You can select any of the three motor terminals and call it R. In this procedure we will
choose terminal A.
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