1.3 Functions / Features ................................................................................................................................... 3
SECTOIN 2 : OPERATOR PANEL
2.1 General ....................................................................................................................................................... 4
2.4 Panel Led Outputs ...................................................................................................................................... 5
SECTOIN 3 : OPERATION
3.1 General ....................................................................................................................................................... 7
3.2 AUTO Mode ................................................................................................................................................ 7
3.3 OFF Mode ................................................................................................................................................... 7
4.1 General ..................................................................................................................................................... 12
4.3 Unit Dimensions ...................................................................................................................................... 13
This technical document is intended to cover most
aspects related with the installation, operation and
maintenance of the ATS-33 Automatic Transfer Switch
Controller. This manual is for authorized and qualified
personnel only.
1.2 Product Overview
The ATS-33 controller represents a state-of –the-art
advancement in automatic transfer switch controls,
where utility power is unavailable and generators must
be in a constant operational state. The ATS-33 design
is specifically tailored for the dual generator power
system: a two-generator system, one primary generator
and its back-up or stand-by generator. The ATS-33
controller manages the automatic start-up and transfer
of load between the primary and stand-by generators,
whether the power-loss is an unexpected event or
scheduled. Additionally, the controller can be
programmed to deliver a set operation duty cycle,
which enables both the primary and stand by
generators to operate in relay duty.
The ATS-33 Controller provides an unmatched degree
of programmed flexibility. It provides all the necessary
administration to ensure that the ATS switch operates
properly through a series of programmed sensing and
timing functions.
Controller’s features:
● Microprocessor based with touch screen.
● Smart touch screen (touch sensor) design.
● Compact size with user-friendly LED display.
● Programmable for cycle-mode or fix-mode displays
for 3-phase and 1-phase voltages and frequencies.
● All programming and operations are done from the
front screen interface.
● Monitor both primary and stand-by generator for over
and under voltages.
● Monitor both primary and stand-by generator for over
and under frequency.
● Dry-contact alarm for transfer fail and over-cranking.
● Manual force-bypass.
● Compatible with almost all ATS switches.
● Optional USB / RS485 / Ethernet remote (mobile
proxy) communication functions.
● Program on-site or from remote (mobile) device (PC,
Smart Phone).
● Auto-saved settings (memory preserved throughout
all power disconnects and resets).
● Front panel display provides source status and fail
alarm indications.
1.3 Functions / Features
The primary function of ATS-33 controller is to monitor
power sources and provide the necessary intelligence
to operate a seamless and automatic transfer of load
between two generators.
1.3.1 Operational Simplicity
From installation to programming and to usage, the
ATS-33 controller is designed with operational
simplicity in mind. The user-friendly front panel
interface simplifies routine operation, programming
and setting adjustments.
1.3.2 Standard Features
All logic settings for different ATS’s are
preprogrammed and stored in its non-volatile
random-access memory (NVRAM), this memory
retains its information when power is turned off. Some
features and set points are user adjustable.
You can program the ATS-33 to switch the lead
generator duty by time or start-run attempts. When the
working generator times out, or runs a number of times
the ATS-33 starts the next generator and makes this
one the lead generator. (See lines 3 & 4)
Adjustable duty time range:01 999 Hours.
Feature 2 : Transferring Time Delay
The ATS-33 control unit provides a time delay when
transferring the switch from the primary to standby
generator. Countdown begins when the standby source
becomes available. (Refer to program line 5 & 6)
Adjustable time delay range:00 250 sec
Feature 3 : Time Delay Engine Cool-down
Controller permits the generator to continue to run
unloaded after retransfer to the other generator is
complete. Countdown begins when the transferring is
complete. (Refer to program line 7)
Adjustable time delay range:00 250 sec
Feature 4 : Time Delay OFF Position
Time Delay on OFF keeps the switch in the center
neutral OFF position (completely disengaged) before
transferring to the other side. (Refer to program line 8)
Adjustable time delay range:00 99 sec
Feature 5 : Under / Over voltage Sensing
The controller monitors the voltage of each phase of
both generators’ power source. User adjustable
settings are provided. (Refer to program line 9, 10, 11,
15, 16 & 17)
Adjustable over voltage range:110 500 Vac
Adjustable under voltage range:80 470 Vac
Feature 6 : Under / Over frequency Sensing
The controller monitors the frequency of the normal and
standby power source. User adjustable settings are
provided. (Refer to program line 12, 13, 14, 18, 19 &
20)
Adjustable over frequency range:51 70 Hz
Adjustable under frequency range:45 59 Hz
Feature 7 : Fail Alarm Output
There are three different abnormal statuses whereby
the controller will setoff the dry contact alarm output.
The auxiliary contact may be wired to a highly audible
alarm panel to indicate a malfunction with the ATS
system. The three abnormal statuses are:
● Send start signal failure / generator fails to start.
● Transfer failure occurred.
● Abnormal voltage and frequency during generator
duty time period.
SECTION 2 : OPERATOR PANEL
2.1 General
Get acquainted with the ATS-33:
● Front Display Window
● Operate Touch Buttons
● Panel LEDs Display
2.2 Display Window
The ATS-33 controller has a four-digit, seven-segment
displayer to monitor all parameters, setting and
messages.
When any failure occurs at its duty time, the
controller will shut down the engine, sound an
alarm output and switch to the other generator.
The failed engine will not start again unless the
user manually resets the alarm output by
touching the AUTO key.
LEDs status under Bypass mode
2.3 Operate Touch Buttons
The front panel employs five sensitive capacitive touch
and release buttons.
Touch Buttons Reference Table
2.3.1 Increase (▲) Button
In AUTO, each touch of the up arrow (▲) changes the
display to the next phase voltage reading.
However, when programming every touch of the up (▲)
button increases the displayed parameter by a single
unit. If held, the up (▲) button continues to scroll.
2.3.2 Decrease (▼) Button
Under AUTO operate status, each touch of the
decrease (▼) button will change the real parameter
display between voltage, duty time and frequency.
However, when programming every touch of the down
(▼) button decreases the displayed parameter by a
single unit. If held, the down (▼) button continues to
When selecting the AUTO key, the ATS-33 runs in
automatic mode lighting the corresponding LED to
indicate the selection. The controller automatically
starts the generator, transfer and retransfers from
source to source as commanded by the features
supplied and the preprogrammed setting.
In AUTO, all anomaly are accompanied by its
matching alarm output make sure all failures are
corrected before touching the auto key to reset the
alarm signal.
2.3.4 Bypass Function Button
The Bypass button provides for a manual override of
pre-programmed functions. When the ATS-33 is in
AUTO, touching the Bypass key ignores the current
timers and setting, and the controller will force-start the
second generator and transfer the switch from the
current working generator to the second generator.
The Bypass function can be activated only in AUTO.
2.3.5 OFF Button
Touching the OFF key, turns the ATS-33 OFF
engaging a flashing red LED instantly disabling all
functions.
When in program mode, touching the off button allows
the user to change the program line table and set the
desire parameter using decrease (▼) or increase (▲)
button.
2.4 Panel LED Outputs
Eight individual red and blue LEDs light bars perform
or indicating each function.
The practical use of each operation under each
category will be explained in this section. It is assumed
that prior sections are understood, and the operator
has a basic understanding of the hardware.
3.2 AUTO Mode
The AUTO mode of the ATS-33 controller provides for
automatic start, transfer and retransfers from source to
source as dictated by the programmed values.
The ATS-33 controller constantly monitors the
condition of both generators’ power sources thus
providing the required intelligence for transfer
operations.
For example, the ATS-33 control unit automatically
initiates a start and transfer of power when the working
generator duty time countdown to zero or when power
fails or voltage level drops below a preset value at its
duty time. Exactly what the ATS-33 controller will
initiate in response to a given system condition
depends upon the combination of standard and
selected optional features.
3.3 OFF Mode
In OFF the ATS-33 disables all the transfers and
protection functions, the display window and all the
LEDs are turned off.
Both remote start signals are also disabled in OFF and
the ATS can’t transfer the load to any source
automatically.
However, when 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.
Controller Panel Lighting Test
This checks the LED lights. Press the OFF button, all
panel LEDs must light up.
3.4 Bypass Mode
If the ATS-33 is running in AUTO, pressing the bypass
button ignores its current duties and force starts the
next generator, and transfer’s power from this
generator to the other. If the second generator fail to
start or its voltage and frequency does not become
available, the controller keeps the load connected to
the working generator and triggers an alarm.
Activate the Bypass only when in AUTO.
3.5 Programming Instruction
You program the ATS-33 from the front faceplate.
To start, set the controller to OFF and press & hold the
OFF button for 4 seconds. The word “Vr1.0” appears
on the display for 2 seconds, showing the software
version.
You are now ready to start the line-by-line
programming sequence. Always press the OFF key to
move to the next line. To change the parameter, on
each line use the up (▲) and down (▼) arrows.
Repeatedly pressing the up (▲) or down (▼) key,
changes the displayed by one. To change faster, hold
the buttons down.
Remember to always press 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-33 factory settings).
A remote start signal can activate the ATS-33 and
the engines can start at anytime without warning.
Place a “Danger” warning sign next to the
generator, stating that this generator can start at
anytime! also install a warning buzzer or a flash
light. Unexpected engine starts can result in
serious injury or death. When performing service
or maintenance, always disconnect the remote
start signal input.
NOTE
ATS-33 with KCU-02 module constitutes a closed
LAN network. Each controller address can be set
from 1 to 99 and not to be repeated. Same
transmission rate is a must !!
3.6 Remote Communication Instruction
You can monitor and control the two gen-set on a
remote PC using the optional USB / RS485 / Ethernet
remote communication modules.
If you have an Ethernet module installed on your
ATS-33 you can remotely monitor and operate the ATS
and generator using the IPhone and Android mobile
phones. Free App software currently available for Apple
iOS5.1 system or above and android operating system.
Free software can be downloaded from App Store or
Google Play by simply key in “Kutai” and hit search.
Free software can be downloaded from App Store or
Google Play by simply key in “Kutai” and hit search.
You have the option of using one of these
communications modules.
KCU-01 – USB communication module
KCU-02 – RS-485 communications module
KCU-03 – Ethernet communications module
The corresponding program settings for ATS-33
installed with KCU-XX module includes item (23), (24),
(25) Programming item (23) is a must. When Item (23)
is set to "00", then the remote monitoring software is
restricted to read information only whereas remote
command is strictly forbidden.
If KCU-02 - RS485 communication module is installed,
additional program setting on lines (24) and (25) are
needed.
For more detail, information refers to the KCU-XX
manual.
The installation for the KCU-XX communication
module on the ATS-33 controller is fairly simple.
Step 1:Remove cover on the back of the ATS-33.
Step 2:Plug in tighten the screw on the KCU-XX
module to the ATS-33 PCB.