GE ZTSCT Controls Power Supply (CPS)

GE Zenith Controls 29■

ZTSCT / ZBTSCT Operation and Maintenance Manual (71R-5000A)

Closed Transition

Each Entelli-Switch 250 microprocessor based ATS

controller requires a Controls Power Supply (CPS) to

apply line voltage to the ATS operator via SCRs. Also

required is power for the Entelli-Switch 250 printed

circuit board and an application of sensing voltage

proportional to line voltage. This is accomplished by the

Controls Power Supply (CPS). This method of switching

operator voltage and applying power and sensing voltage

to the printed circuit board isolates the MX250 from

the line voltage, further protecting the controller from

harmful line transients.

Controls Power Supply (CPS)

Primary CPS CPS

Voltage Assembly Board

at 50/60 Hz Part No. No.

120V 50P-1224 50P-1200

208-220V 50P-1225 50P-1201

230-240V 50P-1226 50P-1202

277V 50P-1227 50P-1203

380-400V 50P-1228 50P-1204

416-440V 50P-1229 50P-1205

460-480V 50P-1230 50P-1206

575-600V 50P-1231 50P-1207

Contents

Main Table of Contents Page Authorized Service For GE parts and service, call: 773 299-6600 Introduction Safety Mounting Equipment Inspection and Storage Final Equipment Inspection Installation Power Connections Engine Start Power Connections: Screw Type Terminals for External Power Connections GE Zenith Controls E CAUTIONS Initial Energization Page Entelli-Switch 250 Controller Entelli-Switch 250 Controller Entelli-Switch 250 Controller LCD & Keypad * E * Entelli-Switch 250 S1 OK 01: 50 FRI 31 MAY 2003 User Setting for Voltage & Frequency Standard 3-Phase Sensing on 3 and 4 Pole Units Source 1 Source 2 Accessory Group Packages ** Accessory Definitions Page R50 S5P S12P S13P S14 How to Set the System Clock How to Set the System Clock Set System Clock, time and date Setting the System Clock CDT One Event Timer Exerciser Load / No-Load How to CONFIGURE (CFG) and Set (SET) the Timer Exerciser Set (SET) the Exerciser: How to Initiate CDT Exerciser and to start an exercise cycle every 1, 7, 14, or 28 days CDP Clock Exerciser Load / No-Load Clock Exerciser How to Configure (CFG) the Exerciser How to set (SET) the DAILY Exerciser How to Bypass (Cancel) an exercise during an exercise cycle Entelli-Switch 250 User Setup - CFG Menu TM Turn options ON or OFF via keypad through the CFG menu 1 Engine Start Relay (De-Energized) Entelli-Switch 250 User Setup - SET Menu TM Change adjustable values through the SET menu. 1 Engine Start Relay (De-Energized) Entelli-Switch 250 User Setup - System Info TM View System Data 1 Engine Start Relay (De-Energized) Testing Introduction Test Options ATS Testing Open Transition NOTICE Emergency Service Procedure for Extended Parallel Time ZTSCT Transfer Switch ZBTSCT Transfer/Bypass Switch Sequence of Operation Open Transition Timer Designations as they appear in the SET menu Page Bypass-Isolation Operation 100-400 AMP 600-1200 AMP 1600-4000 AMP Controls Power Supply (CPS) 30 GE Zenith Controls Relay/Transformer (R/T Box) Closed Transition CPS Schematic Figure 16 Troubleshooting and Diagnostics Table 4 Symptom Annunciation Possible Cause(s) Corrective Action General Troubleshooting NOTE: When you use the troubleshooting charts, Maintenance and Testing Inspection and Cleaning Servicing Testing Page GE Zenith Controls