January 27, 2020
© S&C Electric Company 2019-2020, all rights reserved
Instruction Sheet 661-500
Three-Phase Battery Charger
For 24-Volt Batteries
Operation
Table of Contents
Section Page
Section Page
Introduction
Qualified Persons . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Read this Instruction Sheet . . . . . . . . . . . . . . . . . . . 2
Retain this Instruction Sheet . . . . . . . . . . . . . . . . . . . 2
Proper Application . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Warranty Qualifications . . . . . . . . . . . . . . . . . . . . . . 2
Safety Information
Understanding Safety-Alert Messages . . . . . . . . . . . 3
Following Safety Instructions . . . . . . . . . . . . . . . . . . 3
Replacement Instructions and Labels . . . . . . . . . . . 3
Safety Precautions
. . . . . . . . . . . . . . . . . . . . . . . . . 4
Ratings and Standards
. . . . . . . . . . . . . . . . . . . . . . 6
Components
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Wiring Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
LCD Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Operation
Accessing the GUI Application Software . . . . . . . . .11
Navigating the GUI Application Software . . . . . . . . .12
Power Switch Operation and Configuration . . . . . . .17
Connecting and Powering On the Charger with
a 24-Volt Battery . . . . . . . . . . . . . . . . . . . . . . . . . .18
Removing the Battery for Maintenance
or Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Connecting and Powering On the Charger
with a 120-Vac Single-Phase Source . . . . . . . . . 20
Connecting and Powering On the Charger
with S&C Three-Phase Voltage Sensors . . . . . . . .21
Troubleshooting Tips . . . . . . . . . . . . . . . . . . . . . . . 23
Appendix A
Using the Charger Pushbuttons for
Manual Operation . . . . . . . . . . . . . . . . . . . . . . . . 24
Appendix B
Connector Pin Descriptions . . . . . . . . . . . . . . . . . . 28
Appendix C
System Line-to-Ground Voltage Calibration . . . . . . 30
Appendix D
Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
