MTS Systems ATS-21AG User manual

ATS-21/22AG
Automatic Transfer Switch
And Control PLC
Operator’s Manual
MTS Power Products
MIAMI FL 33142
Dedicated Single Phase
Transfer Switch
With Touch Screen Controls

400 amp size in typical enclosure with location of customer connections
Normal
Power
Connections
Emergency
Power
Connections
Manual Override
LOAD
Power
Connections
ATS-22AG Control
and position indicators
Remote Start
plus
Alarm connection
Active for 60 sec ONLY
When ATS is on Generator

ATS-22AG Automatic Transfer Switch
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1
INTRODUCTION
1.1 Preliminary Comments and Safety
Precautions
The manual covers installation, operation and
maintenance of the ATS-22AG Automatic Transfer
Switch and Controller. This manual is for use by
authorized and qualified personnel only.
WARNING
High voltages cankill.
1.2 Overview
Transfer switches protect critical electrical loads
against loss of power. A standby (emergency)
generator backs up the normal grid power. The
transfer switch connects either the NORMAL
(Power Co. Grid) or the generator EMERGENCY to
the LOAD. When power is lost the switch transfers
the load to the generator. Eventually after the grid is
restoration, the ATS connects the load back to the
grid.
1.3 Product Overview
The ATS-22AG is a programmable automatic
transfer switch Controller. It’s suitable for single
phase systems only, and including all necessary
monitoring and protections.
The ATS-22AG features:
●Smart touch screen (touch sensor) design.
●Compact size with user-friendly LED display.
●All programming and operations are done from
the front screen interface.
●Monitors grid and emergency for over and under
voltage anomalies.
●Monitors grid and emergency for over and under
frequency anomalies.
●Programmable exerciser with Load.
●Exerciser set for one time per week wih load.
●Emergency position contacts for Auto-Dialer
●Simple programming on-site
●Auto-saved settings (memory preserved
throughout all power disconnects and resets).
●Front panel display provides source status and
fail alarm indications.
1.4 Functions / Features
The primary function of ATS-22AG controller is to
monitor grid / normal street power and provide the
necessary intelligence to operate the ATS switch
1.4.1 Operational Simplicity
Installation, programming and use of the ATS-22AG
controller is designed to be easy. The friendly front
panel simplifies routine operation, programming
and adjustments.
Emergency Manual override

Line 1: Time Delay Emergency to Normal
(TDEN)
TDEN delays the transfer from the emergency
back to the grid, permitting the stabilization of the
grid before returning. Timing begins when the grid
becomes available.
Adjustable TDEN time range: 00to 990 sec
Line 2: Time Delay Normal to Emergency
(TDNE)
TDNE delays the transfer from normal to emergency
to permit stabilization of the generator before the
transfer is made. Timing begins when the generator
becomes available. (sometimes called the warm-up
timer)
Adjustable TDEN time range: 0.0 to 250 sec
Line 3: Time Delay Engine Start (TDES)
This timer prevents nuisance start because of
momentary electrical glitches. If power normalizes
before the countdown ends, the controller skips the
engine start and resets the timer.
Adjustable TDES time range: 0 to 30 sec
Line 4: Time Delay Engine Cool-down
(TDEC)
TDEC permits the generator to run unloaded after
the ATS return to the grid. Timing begins when the
ATS connects back to grid power (If you already
have cool-down on the Generator Controler this
time is also added to the ATS cool-down timer)
Adjustable TDEC range: 0 to 999 sec
Line 5: Time Delay Center OFF Position
This timer temporally stops the switch in the center
OFF position (completely cut off) before proceeding
to normal. Useful is some computerizes system that
need time in OFF to reset.
Adjustable time delay range: 0 to 99 sec
Lines 6, 7, 8, & 9: Over / Under Voltage
and Loss of one wire sensing
The controller monitors the voltage from grid and the
generator. The client can program over & under
voltage window. (Refer to program table line 6, 7, 8,
& 9
O/V adjustment range : 110VAC to 300VAC
O/V reset value: −10VAC (Not adjustable)
U/V adjustment range: 80VAC to 240VAC
U/V reset value: +10VAC (Not adjustable)
Programmable exerciser
It can be set to exercise one time per week at any
day and time, with load. The length of the exercise
is also set. (Refer programming lines10, 11, 12,
13, 14 & 15)
NOTICE
COMMON ALARM provides AN auxiliary dry
contact for use when the ATS is in
Emergency position (Its ON only for 60 sec)
ATS-22AGAG Automatic Transfer Switch
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REPLACEMENT PARTS
Replacement parts are available. When ordering
parts provide the Model and Serial Number. From
the transfer switch name-Plate. Contact MTS Power
in United States call 1-800- 541-7677
World Wide call 305-634-1511

ATS-22AGAG Automatic Transfer Switch
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3
1: LED Test
Touch & hold the OFF button , all LEDs light up.
2: OPERATION
2.1 Display Window
The ATS-22AG controller has a 4-digit, 7-segment
displayer to monitor all parameters, setting and
messages. The screen displays:
●Voltage / frequency
●Current Time HH:MM (In OFF only)
●Sec. delay countdown
●Program setting parameters
2.3 Operate Touch Buttons
The front panel has 5 sensitive capacitive touch
buttons.
2.3.1 Increase (▲) Button
When programming the up (▲) button increases the
displayed parameter by one unit. If held, the up (▲)
button continues to scroll.
2.3.2 Decrease (▼) Button
When programming touching the down (▼) button
decreases by one unit. If held, the down (▼) button
continues to scroll.
2.3.3 Auto Button
In AUTO, the ATS-22AG runs in automatic mode
lighting the corresponding LED to indicate the ATS
is in AUTO. In AUTO controller automatically starts
the generator, transfer and retransfers from grid to
generator as commanded.
2.3.4 Test Button
Touching the TEST button simulates a power failure
and begins a testing sequence. for 20 min and then
return to AUTO.
If at any time the generator fails in TEST mode the
ATS returns to AUTO if Normal power is available.
2.3.5 OFF Button
Touching the OFF turns the ATS-22AG OFF
engaging a flashing red LED disabling all functions
and the screen shows the Time of Day

2.4 Panel LED Outputs
Eight individual red and blue LEDs light bars
perform or indicating each function.
Information concerning the LEDs output
Power available display normal / grid &
emergency
Normal / grid over voltage
Normal / grid under voltage
Normal / grid over frequency
Normal / grid under frequency
Emergency over voltage
Emergency under voltage
Emergency over frequency
Emergency under frequency
Normal / grid transfer failure
Emergency transfer failure
ATS-22AG Automatic Transfer Switch
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ATS-22AG Automatic Transfer Switch
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SECTION 3: OPERATION
3.1 General
The four functions of the ATS-22AG:
●In AUTO
●In OFF
●In TEST mode
●Programming
The practical use of each operation under each
category is explained in this section. It is assumed
that prior sections are understood, and the operator
has a basic understanding of the hardware.
3.2 IN AUTO
The AUTO mode of the ATS-22AG controller
provides automatic engine start, stop, and power
transfer and retransfers from source to source as
dictated by the values previously programmed.
The ATS-22AG constantly monitors the condition of
both the grid and/or generator providing the
intelligence for the transfer operations.
3.3 IN OFF
In OFF the ATS-22AG disables all the transfers and
protection functions with all LED indicators OFF
leaving the display screen showing only the time of
day. The user can test the LEDs by touching the
OFF button.
Reset the clock once a year. The wrong time can
affect the schedule exerciser. Without power, the
controller can maintain the clock working for up to a
week.
However, when in programming, the OFF button
allows you to move to the next program line and
then change the values for that line using down (▼)
and up (▲) buttons.
3.4 Manual TEST (TEST)
Touching TEST simulate a loss of normal/grid
power. Permitting the controller to start the engine
and carry out a power transfer UNDER load for 20
min.
After 20 Minutes the Control automatically return to
AUTO.
If at anytime the Generator stops when under TEST
and NORMAL Power is available the ATS return to
Normal.
3.5 Programming Instruction
You program the ATS-22AG from the front
faceplate.
To start, set the controller to OFF and touch & hold
the OFF button for 5seconds (The screen flashes 3
times). The word “Vr2.0” appears on the display for
2 seconds, showing the software version.
You are ready to start the line-by-line programming
sequence. Always touch the OFF key to move to the
next line, to change the parameters, on each line
use the up (▲) and down (▼) arrows. Repeatedly
touching the up (▲) or down (▼) key, changes the
displayed by one. To change faster, hold the buttons
down.
Remember to always touch the “OFF” button to
move to the next line or until the “End” appears on
the screen. Note: To end and exit at any time, hold
the “OFF” key down for 4 seconds.
If you make an error or need to return to factory
settings, stay or reenter programming and then hold
the AUTO keys down for 4 seconds, until the word
“Au.Po” appears on the screen verifying that all
programming lines are factory reset back like in the
manual. (See line-by-line programming table for
ATS-22AG factory settings).
In AUTO the ATS can starts the generator, using
anormally open dry remote start connection. Next
to the remote is the connections for the Common
Alarms which are activated only for 60 sec. when
the ATS moves to the Emergency Position

3.7 To enter the Line by Line Programming Table – Simply touch and hold the OFF
button for 5 sec. and after the screen flashes 3 times – remove finger
To go from one line to the next touch OFF each time & change values by using the
UP/Down Arrows.
LINE DISCRIPTION VALUE FACTOR
Y
SETTING
1 TDEN Time Delay Emergency to Normal 00 to 999 sec 10sec
2 TDNE Time Delay Normal to Emergency 00 to 250 sec 10sec
3 TDES Time Delay Engine Start 00 to 30 sec 05sec
4 TDEC Time Delay Engine Cool-down 00 to 999 sec 00sec
5 Time Delay in the OFF Position 00 to 25 sec 02sec
6 Normal over voltage protection setting 11 to 30 ( 110V to 300V ) 27(270V)
7 Normal Under voltage protection setting 08 to 24 ( 80V to 240V ) 18 (180V)
8 Generator over voltage protection setting 11 to 30 ( 110V to 300V ) 27(270V)
9 Generator Under voltage protection setting 08 to 24 ( 80V to 240V ) 18 (180V)
10 Set today’s day of the week– Day 1 to 7 (Monday to Sunday) current
11 Set today’s hour – Hour 00 to 23 current
12 Set today’s minutes 00 to 59 current
13 Set day of week to do the engine exercise 1 to 7 (Monday to Sunday) 6
14 Set the time to start the exercise 00 to 23 ( 24 Hr Clock ) 12
15 Exercising duration 00 to 99 Minutes ( 0 = Do not exercise) 00
16 Exercise with load or without load 00) Without load 01) With load 01
17 Install & Enable Remote Ethernet Module
KCU-30. 00) Disable 01) Enable 01
18 Restore Passwords to factory settings
Monitor & Control-0000, Monitor only-9999 00) No 01) Yes 00
In case a KCU-30 is not installed Line 18 vanishes & is not used.
Line 18 comes in handy if you forget your password for the KCU-30 when
using remote monitoring software on your PC or Smart Phone. After a
password reset remember to use a new password on your PC or Smart Phone
App for your protection.
To EXIT programming, press OFF for 5 sec.

ATS-22AG Automatic Transfer Switch
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3.8 Specification Summary
PARAMETER SPECIFICATION
AC Voltage Measurement Range 50 VAC to 300 VAC 50/60 HZ
Frequency Measurement Range 40HZ to 75HZ
Remote Start Contact 7A @ 250VAC Max
Normal ON Contact 7A @ 250VAC Max
Emergency ON Contact 7A @ 250VAC Max
Auxiliary Contact Output 7A @ 250VAC Max
Operating Temperature
Storage Temperature
Operating Humidity Maximum 90% relative humidity
Weight 0.55lbs 2%
SECTION 4: INSTALLATION INSTRUCTIONS
4.1 General
The ATS-22AG is made for front panel mounting.
4.2 Panel Cut-Out (All Dimensions in Inches)
-4F to 160F
-4F to 160F
4.45
6.6

ATS-22AG Automatic Transfer Switch
4.3 Unit Dimensions ( All Dimensions in MM. )
4.4 Installation Reference
Silicon waterproof seal Panel Cut-out
A T S
Metal door
Fix bracket
Screw
Screw
Fix bracket
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ATS-22AG Automatic Transfer Switch
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SECTION 5 : TYPICAL WIRING AG Unit
GENSET
LOAD
MAINS
ATS-22AG Control Unit
#ELS>>Genset Auxiliary Switch
#NLS>>Normal Auxiliary Switch
L1 L2
MCCB TYPE BTS
L2
L1
L1
L2