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Automatic Transfer Switch Owner’s Manual iii
Table of Contents
Section 1: Introduction and Safety
Introduction ..................................................................1
Safety Rules .................................................................1
Safety Symbols and Meanings ...................................2
Section 2: General Information
Unpacking .....................................................................3
Equipment Description ................................................3
Service Disconnect ......................................................3
Transient Voltage Surge Suppression .........................3
Automatic Transfer Switch ..........................................4
Panel Board .................................................................4
Transfer Mechanism ....................................................4
Ratings—Data Label ....................................................5
Panel Board Enclosure ................................................5
Safe Use of Transfer Switch .......................................5
Transfer Switch Mechanism ........................................5
Transfer Switch Data Decal .........................................5
Section 3: Installation
Introduction to Installation ..........................................7
Mounting the Enclosure ..............................................7
Connecting Power Source and Load Lines ...............7
2-Pole Mechanism .......................................................7
Connecting Start Circuit Wires ...................................8
On-Site Generator Connections ..................................8
Battery Charger ............................................................9
Auxiliary Contacts .......................................................9
Section 4: Operation
Functional Tests and Adjustments ..........................11
Manual Operation .......................................................11
Close to Normal Source Side ....................................11
Close to Generator Source Side ...............................12
Return to Utility Source Side .....................................12
Voltage Checks ..........................................................12
Utility Voltage Checks ...............................................12
Generator Voltage Checks ........................................13
Main Contacts at Normal (Utility) ..............................14
Main Contacts at Neutral ...........................................14
Main Contacts at Standby (Emergency) ..................14
Sequence of Operation ..............................................15
Sequence 1 - Voltage/Frequency Dropout ................15
Sequence 2 - Line Interrupt Delay .............................15
Sequence 3 - Engine Minimum Run
and Warmup Timers ..................................................15
Sequence 4 - Standby Voltage and Frequency
Sensors .....................................................................15
Sequence 5 - Voltage Pickup ....................................15
Sequence 6 - Return to Utility Timer .........................15
Sequence 7 - Engine Cool Down Timer ....................15
The Human Machine Interface (HMI) ........................16
Home Screen ..............................................................16
Status ........................................................................16
Sequence of Operation Settings ...............................17
Pushbutton Arrow ......................................................17
Configuration Menu ...................................................17
Transfer Switch Settings #1 ......................................18
Transfer Switch Settings #2 ......................................18
Transfer Switch Settings #3 ......................................19
Transfer Switch Settings #4 ......................................19
Exercise and Clock Setup .........................................19
Exercise Setup ..........................................................20
Manual Tests .............................................................20
Input/Output Signal Maintenance ..............................21
Voltage Measurement Display ..................................21
Voltage Measurement Maintenance ..........................21
System Status ...........................................................21
System Utility Menu #1 ..............................................22
System Utility Menu #2 ..............................................22
Generator Tests Under Load ....................................23
Checking Automatic Operation ................................23
Installation Summary .................................................23
Shutting Generator Down While Under Load ..........24
Section 5: Maintenance
Operate Transfer Switch ...........................................25
Clean and Inspect Transfer Switch ..........................25
Main Current Carrying Contacts ...............................25
Twelve-Volt Batteries (Two) ......................................25
Lubrication .................................................................25