INSTALLATION AND OPERATION
SX TRANSISTOR CONTROL
SEPARATELY EXCITED (SX) TRANSISTORIZED DUAL MOTOR TRACTION CONTROLLERS
Note: The information contained herein is intended to assist OEM's, Dealers and Users of electric vehicles in the
application, installation and service of GE solid-state controllers. This manual does not purport to cover all
variations in OEM vehicle types. Nor does it provide for every possible contingency to be met involving vehicle
installation, operation or maintenance. For additional information and/or problem resolution, please refer the matter
to the OEM vehicle manufacturer through his normal field service channels. Do not contact GE directly for this
assistance.
Section 1.0
INTRODUCTION ........................................................................................................................................................ 4
1.1
1.2
1.3
1.4
Section 2.0
FEATURES OF SX FAMILY OF MOTOR CONTROLLERS .................................................................................... 6
2.1
2.1.1
2.1.1.a
2.1.1.b
2.1.1.c
2.1.2
2.1.3
2.1.3.a
2.1.3.b
2.1.4
2.1.4.a
2.1.4.b
2.1.5
2.1.6
2.2
2.2.1
2.2.2
INSTALLATION AND OPERATION MANUAL
(IC3645SR4R333AS1)
Table of Contents
Copyright by General Electric Company April 1999
Motor Characteristics .............................................................................................................. 4
Solid-State Reversing ............................................................................................................... 5
Flexible System Application..................................................................................................... 5
More Features with Fewer Components ................................................................................ 5
Performance.............................................................................................................................. 6
Oscillator Card Features .................................................................................................. 6
Standard Operation .................................................................................................. 6
Creep Speed............................................................................................................... 6
Control Acceleration ................................................................................................ 6
Current Limit ...................................................................................................................... 6
Braking ............................................................................................................................... 6
Regenerative Braking to Zero Speed ...................................................................... 6
Auto Braking.............................................................................................................. 6
Auxiliary Speed Control.................................................................................................... 6
Field Weakening........................................................................................................ 6
Speed Limits .............................................................................................................. 6
Ramp Start ......................................................................................................................... 7
On-Board Coil Drivers and Internal Coil Suppression ................................................. 7
System Protective Override ..................................................................................................... 7
Static Return to Off (SRO) ............................................................................................... 7
Accelerator Volts Hold Off............................................................................................... 7
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April 1999