Asco 200 Series - User Manual

381333–234 E
50 Hanover Road, Florham Park, New Jersey 07932–1591 USA
For sales or service call 1 800 800–2726 (ASCO) www.ascopower.com
Operator’s
Manual
Seri es 200
Automatic Transfer Switching Equipment
D–de si gn 30 t hro ug h 230 amp ere s
DANGER is used in this manual to warn of a
hazard situation which, if not avoided, will result
in death or serious injury.
WARNING is used in this manual to w arn of a
hazardous situation which, if not avoided, could
result in death or serious injury.
CAUTION is used in this m anual to warn of a
hazardous situation which, if not avoided, could
result in minor or moderate injury.
Note: Refer to the outline and wiring drawings
provided with your Series 200 ATSE for all
installation and connection details and accessories.
Nameplate / rating Label
The Series 200 Autom atic Tr ans fer Switc hin g Equipmen t
(ATSE) contain s a namepl ate / rating lab el which incl ud es
data for that spec ific ATSE. It defines the loads and fault
circuit w ithstand/cl osing ratings. Refer to the labels on the
Trans fe r Switc hin g devic e for specif ic valu es and use the
ATSE onl y with in their limits .
An experienced licensed electrician should install the
ATSE.
Do not exceed the values on the rating label.
Exceeding the rating can cause person injury or
serious equipment damage.
TABLE OF CONTENTS
section
INSTALLATION 1.........................
SEQUENCE OF OPERATION 2............
TESTING & SERVICE 3...................
ADJUSTMENTS 4........................
CONTROL FEATURES 5..................
INDEX back of manual....................
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Asco 200 Series Specifications

General

Series	200
Poles	SPDT
Standards	UL, CSA
Switch Type	Pressure
Housing Material	Aluminum

Summary

Installation

Installation Setup and Grounding

Guidance on mounting the ATSE in an enclosure and proper grounding procedures.

Wiring and Connections

Instructions for power, engine starting, interconnecting, and auxiliary circuit wiring.

Functional Test and Manual Operation

Procedure for checking manual operation and performing the functional test of the ATSE.

Voltage Checks

Steps to check phase-to-phase and phase-to-neutral voltages at the ATSE terminals.

Electrical Operation and Transfer Test

Procedure for checking electrical operation and performing the transfer test of the ATSE.

Sequence of Operation

Transfer to Emergency Sequence

Describes the automatic sequence for transferring load to the emergency source when normal source fails.

Retransfer to Normal Sequence

Describes the automatic sequence for retransferring load to the normal source when it is restored.

Testing & Service

Testing and Maintenance Procedures

Covers preventive maintenance, controller handling, and transfer switch testing procedures.

Manual Transfer and Troubleshooting

Procedure for manual load transfer and common troubleshooting checks for the ATSE.

Adjustments

Time Delay and Sensor Adjustments

How to adjust time delay and sensor settings using DIP switches and potentiometers.

How to Change Settings

Step-by-step instructions for changing potentiometer and DIP switch settings on the controller.

Control Features - Engine Exercisers

Built-in Engine Exerciser Functionality

Details on the built-in engine exerciser for weekly testing with or without load transfer.

Optional Programmable Engine Exerciser

Description of the optional exerciser providing seven days of programmable exercise periods.

Exerciser Settings and Operation

Instructions for setting the exerciser clock, programming periods, manual override, and time changes.

Inphase Monitor and Load Disconnect Features

Features for motor load transfer monitoring and load disconnect timing before transfer.

Remote Control Features Configuration

Configuration of remote test, transfer to emergency, and inhibit transfer features.