Glentek Inc. 208 Standard Street, El Segundo, California 90245, U.S.A. (310) 322-3026
51
APPENDIX D
D - Matching motor phase leads to amplifier commands using Hall sensors.
Below you will find the steps necessary to insure that the command phases of a digital amplifier are
properly matched to any three-phase motor that has Hall sensors. This method applies to a fully digital
amplifier with digital current loops. Section labeled “System Setup” must have been completed before
attempting this appendix.
Please read this procedure prior to working with the motor and amplifier.
It is intended that this procedure be done once by the engineering staff, whereupon they will incorpo-
rate the findings into production drawings, wiring labels and procedures.
A) Locate or prepare the required equipment.
1. A 2 channel oscilloscope
2. A 3-phase Y-connected resistive load as illustrated be-
low.
3. A computer with MotionMaestro
©
installed.
B) With the power off, connect the motor encoder outputs and
the Hall sensor outputs to the amplifier.
Leave the motor
power leads disconnected
. Connect the RS232 serial ca-
ble from the amplifier to the serial port on the computer
(MotionMaestro
©
).
C) Apply power to the amplifier and establish communications between
the amplifier and MotionMaestro
©
.
D) Prepare the amplifier using the following dialogs.
1.) Insure that the amplifier is in
current mode
. Deselect all
modes except the
current mode
.
2.) Check then clear all faults by referring to the Amplifier Faults
and Amplifier Status displays on the toolbar. For example, if
there is an External Inhibit status warning you must open the
Setup Digital IO dialog and check the inhibit box, then fix all
remaining amplifier faults. After all faults have been corrected
a fault reset must be completed. You may perform a reset
with SynqNet® controller by using Mo-
con.
Commutation alignment can
not begin until all faults are cleared
.
R1
R2
R3
R1, R2 and R3 = 20K 10watt resistors.
Specification for resistive load
Appendix D
Summary of Contents for Omega SMC9930
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