GE manual Entelli-Switch 250 Controller

Page 7

Entelli-Switch 250 Controller

Entelli-Switch 250 Controller

Consists of two major assemblies:

I. The Microprocessor contains the following:	I/O Interface
	I/O Interface
A. Entelli-Switch 250 Board - Customer Input
and Output (I/O) for system interface. Located
on the left hand side of the back of the unit
(see figure 6)

1.I/O accessories that can be found here are:

a.Engine start relay P output

b.Pre-Signal to transfer T3, W3 and UMD output (optional)

c.Transfer Inhibit Q3 and Q7 input (optional)

d.Remote test Q2 input (optional)

e.Network interface ZNET input/output (optional)

B.LCD and Keypad located on the exterior of the door (see figure 7)

1.User accessibility to the following:

a.LED indication of source availability

b.LED indication of transfer switch position

c.LCD screen indicates:

(1)timer count down (numeric)

(2)event reporting (text)

d.Keypad provides user interface to: [in conjunction with LCD screen]

(1)Setting sensors and timers

(2)Configuring logic accessories

II.The R/T box (relay transformer box) contains the following: (see figure 6)

A.Relays which are required for controller output

to energize the transferring mechanism of the transfer switch at line voltage.

B.Transformers which drop line voltage to control level for controller input.

Engine Start Relay P

Entelli-Switch 250

Board

Battery Strip

and

Access

Code Label

R/T Box

Figure 6

S 1 O K

2 1 : 5 6

M O N 2 3 A P R 2 0 0 2

M O R E T E S T

Figure 7

■ GE Zenith Controls

Entelli-Switch 250 Operation and Maintenance Manual (71R-2000)

7 ■

Image 7

Contents GE Zenith Controls Table of Contents Authorized ServiceIntroduction Equipment Inspection and Storage Safety / InstallationFinal Equipment Inspection Engine Start Control Connections Installation cont’dInitial Energization R E T E S T Initial Energization cont’dInstallation cont’d Entelli-Switch 250 Controller Entelli-Switch 250 ControllerLCD & Keypad Entelli-Switch 250 Controller cont’dUser Setting for Voltage & Frequency Stds Exes Cons Sens Spes Psgs Accessory Group PackagesA62 Accessory DefinitionsCalibrate Accessory Definitions cont’d S14 Approximate out of phase degreesS12P S13PPress More and scroll to SET System Clock using the More key How to Set the System ClockPress Cancl Bpass CDT One Event Timer ExerciserPress Exer Cancl Press Start Timer Test Press Bypass ExerLoad / No-Load Clock Exerciser CDP Clock ExerciserTurn options on or OFF via keypad through the CFG menu Entelli-Switch 250 User Setup CFG MenuChange adjustable values through the SET menu Entelli-Switch 250 User Setup SET MenuView System Data Entelli-Switch 250 User Setup System InfoAuto Position TestingIntroduction Test OptionsStandard Transition Testing cont’dATS Testing Delayed TransitionInitiating a Closed Transition Closed TransitionRe-Transfer with Closed Transition Auto Location Emergency Service Procedure for Extended Parallel TimeTest Location ATS Type Sequence of OperationSequence of Operation cont’d Relay/Transformer R/T Box Amp Molded Power Section Transformer Usage see FigureRelay/Transformer R/T Box cont’d Delayed / Closed TransitionDelayed / Closed Transition R/T Box Schematic Standard Transition R/T Box SchematicGeneral Troubleshooting Troubleshooting and DiagnosticsServicing Maintenance and TestingInspection and Cleaning TestingPage GE Zenith Controls