Kutai electronics ATS-380 User manual

ATS-380 Ver1.0
A UTOMATIC T RANSFER S WITCH
CONTROL UNIT
OPERATOR’S MANUAL
Headquarters : No.3, Lane 201, Chien Fu ST., Chyan Jenn Dist., Kaohsiung, TAIWAN
Tel : + 886-7-8121771 Fax : + 886-7-8121775 URL : http://www.kutai.com.tw

ATS-380 Automatic Transfer Switch
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TABLE OF CONTENTS
Section Page
SECTOIN 1 : INTRODUCTION
1.1 Preliminary Comments and Safety Precautions .............................................................................. 3
1.2 Overview .......................................................................................................................................... 3
1.3 Product Overview............................................................................................................................. 3
1.4 Functions / Features ........................................................................................................................ 4
SECTOIN 2 : HARDWARE DESCRIPTION
2.1 General............................................................................................................................................. 6
2.2 Display Window................................................................................................................................ 6
2.3 Operate Pushbuttons ..................................................................................................................... 6
2.4 Panel LEDs Outputs ....................................................................................................................... 6
2.5 Rear Access Area .......................................................................................................................... 6
SECTOIN 3 : OPERATOR PANEL
3.1 General............................................................................................................................................. 9
3.2 Display Window................................................................................................................................ 9
3.3 Operate Pushbuttons....................................................................................................................... 9
3.4 Panel LED Outputs .......................................................................................................................... 9
SECTOIN 4 : OPERATION
4.1 General........................................................................................................................................... 10
4.2 Automatic Mode ............................................................................................................................. 10
4.3 Engine Test Mode.......................................................................................................................... 11
4.4 Off Mode ........................................................................................................................................ 11
4.5 Programming Mode........................................................................................................................ 11
4.6 Specification Summary .................................................................................................................. 13
SECTOIN 5 : INSTALLATION INSTRUCTIONS
5.1 General........................................................................................................................................... 13
5.2 Panel Cut-Out ............................................................................................................................... 13
5.3 Unit Dimensions ........................................................................................................................... 14
SECTOIN 6 : TYPICAL WIRING
6.1 General........................................................................................................................................... 14
6.2 3Phase 3Wire Connecting Wire Diagram......................................................................................15
6.3 1Phase 3Wire Connecting Wire Diagram......................................................................................19
6.4 Single Phase Connecting Wire Diagram........................................................................................ 23
6.5 Connecting Wire Diagram When The Transfer Current Over 6 Amps .......................................... 27

ATS-380 Automatic Transfer Switch
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SECTION 1 : INTRODUCTION
1.1 Preliminary Comments and Safety
Precautions
This technical document is intended to cover most
aspects associated with the installation, application,
operation and maintenance of the ATS-380
Automatic Transfer Switch Controller. It is provided
as a guide for authorized and qualified personnel
application of the ATS-380 Automatic Transfer
Switch Controller.
1.2 Overview
Transfer switches are used to protect critical
electrical loads against loss of power. The load's
normal power source is backed up by a standby
(emergency) power source. A transfer switch is
connected to both the normal and emergency
sources and supplies the load with power from one
of these two sources. In the event that power is lost
from the normal source, the transfer switch transfers
the load to the standby source. Once normal power
is restored, the load was transferred back to the
normal power source.
When using the ATS-380 module in automatic
transfer switch equipment, the switch's intelligence
system initiates the transfer when normal power
falls below or over a preset voltage or frequency. If
the emergency source is a standby generator, the
transfer switch initiates generator starting and
transfers to the standby source when sufficient
generator voltage and frequency is available. When
normal power is restored, the transfer switch
automatically transfers back and initiates engine
shutdown after a preset engine cooling down time
delay.
An automatic transfer switch consists of three basic
elements:
1. Main contacts to connect and disconnect the load
to the source of power.
2. A transfer mechanism to affect the transfer of the
main contacts from one source to another source.
3. Intelligence control unit to constantly monitor the
condition of the power sources and thus provide
the intelligence necessary for the switch and
related circuit operation.
This manual deals with the third basic element of
the automatic transfer switch, the required
intelligence automatic control module. All the
Automatic Transfer Switch functions were
performed by a door mounted logic panel ATS-380
control unit. The ATS-380 logic panel brings
intelligence, supervisory and programmable
capabilities to automatic transfer switch equipment.
1.3 Product Overview
The ATS-380 Automatic Transfer Switch control
module is an intelligence, comprehensive,
multi-function, microprocessor based automatic
transfer switch controller. It is a compact panel
mounted device designed to replace traditional relay
and solid state logic panels and meet the needs of
markets worldwide.
The ATS-380 controller provides an unmatched
degree of programmed flexibility to address the
needs of most switches system. It can be
programmed for 3Ø and 1Ø system operation.
( Refer to program line 2.)
The ATS-380 controller provides the necessary
intelligence to insure that the switch operates
properly through a series of programmed sensing
and timing functions. The ATS-380 controller will :
●Monitor Normal and Standby source over and
under voltages.
●Monitor Normal and Standby source over and
under frequencies.
●Permit customer programming display real time
information.
●Permit customer programming cyclic mode or fix
mode display for 3 phase voltages and frequency.
( Refer to program line 29.)
●Permit system testing the transfer switch
with/without load from front panel. ( Refer to
program line 4.)
●Store customer / factory established parameters
in memory without losing.

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●Built-in one week exerciser timer.
●Permit customer plant engine test with / without
load on a preset period.
●Provide programmable per-exerciser warming
signal.
●Provide a pre-transfer signal to elevator controller
before transfer switch.
●Provide programmable alarm output when
transfer failure.
●There is no need for a PC connection and
programming software. Any and all changes can
be made in the field.
●Provide the source status and fail alarm
indications on the front panel.
1.4 Functions / Features
The primary function of ATS-380 controller is to
accurately monitor power sources and provide the
necessary intelligence to operate a transfer switch
in an appropriate and timely manner.
1.4.1 Operational Simplicity
From installation to programming to usage, the
ATS-380 controller was designed with operational
simplicity in mind. The ATS-380 controller operates
with system voltage from 280 VAC to 480 VAC at 50
or 60 Hz. The user-friendly front panel interface
simplifies routine operation, programming and
setting adjustments.
1.4.2 Standard Features
A variety of programmable features are available to
meet a wide variety of application requirements.
Individual features or feature combinations provide
the Intelligence required tailoring switches to
individual needs. The features can be programmed
by customer via friendly setting procedure,
depending upon customer requirements. The
specific variable set points associated with standard
and factory activated features are stored in a
nonvolatile memory. Activated feature set points are
available for customer adjustment.
Feature 1 :Time Delay Normal to Emergency
(TDNE)
TDNE provides a time delay when transferring the
Normal source to the Standby source. It ensures
stability of the Standby source. Timing begins when
the Standby Source becomes available. ( Refer to
program line 6.)
Adjustable TDNE range : 0 ~ 60 (0 ~ 300 sec)
Feature 2 : Time Delay Engine Start (TDES)
TDES delays the initiation of the engine start circuit
in order to override momentary power outages or
voltage fluctuations of the Normal source. The
TDES timer shall start when the Normal source
becomes unavailable. If the Normal source
becomes available while timing, the TDES timer will
reset. The ATS-380 controller can perform the time
delay engine start function without control power for
30 seconds. ( Refer to program line 7.)
Adjustable TDES range : 0 ~ 6 (0 ~ 30 sec)
Feature 3 : Time Delay Emergency to
Normal (TDEN)
TDEN delays the transfer from the Standby source
to the Normal Source to permit stabilization of the
Normal Source before retransfer is made. Timing
begins when the Normal Source becomes available.
( Refer to program line 5.)
Adjustable TDEN range : 0 ~ 60 (0 ~ 300 sec)
Feature 4 : Time Delay Engine Cool-down
(TDEC)
TDEC permits the generator to continue to run
unloaded after retransfer to the Normal Source has
occurred. Timing begins when the transfer to normal
has been completed. ( Refer to program line 8.)
Adjustable TDEC range : 0 ~ 60 (0 ~ 300 sec)

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Feature 5 : All Phase Under / Over voltage
Sensing
The controller monitors the voltage of each phase of
the normal and standby power source. User
adjustable settings are provided. ( Refer to program
line 9,10,11,15,16 & 17.)
Adjustable Over voltage range: 390VAC ~ 480VAC
Adjustable Under voltage range: 280VAC ~ 370VAC
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 : 51Hz ~ 70Hz
Adjustable Under frequency range : 40Hz ~ 59Hz
Feature 7 : Plant Exerciser
This feature provides for automatic test operation of
the generator. The interval is fixed at once per week
with a specific test day and time. The test period is
also programmable by customer setting. The
ATS-380 control unit permit customer plant engine
test with / without load on a preset period. ( Refer to
program line 21,22,23,25,26,27 & 28.)
Feature 8 : Pre-transfer Signal Output
When the auxiliary contactor was set to be a
pre-transfer signal output. The ATS-380 controller
will provide a pre-transfer signal to elevator
controller before transfer the load from one source
to another source with a preset time delay. The
pre-transfer return to normal state after the transfer
is complete. ( Refer to program line 30 & 31.)
Adjustable range : 1 ~ 99 sec.
Feature 9 : Pre-exerciser Signal Output
When the auxiliary contactor was set to be a
pre-exerciser signal output. The ATS-380 controller
will provide a pre-transfer signal output before
exerciser the engine. It is an advance warring to
avoid person damaged before the generator auto
start itself. ( Refer to program line 30 & 32.)
Adjustable range : 1 ~ 99 sec.
Feature 10 : Transfer Fail Alarm Signal
Output
When the auxiliary contactor was set to be a
transfer fail alarm output. The auxiliary contactor
may be wired to an alarm enunciator panel to
indicate problem with the Automatic Transfer
Switch.
An alarm condition will occur if a transfer has been
initiated but it is never completed. This may indicate
that something is wrong with the motor or transfer
mechanism. ( Refer to program line 30 )
NOTICE
The ATS-380 controller provided an aux.
contactor for external signal output only. So,
this contactor just can define to one of the
three features used. (Pre-transfer, Pre-exerciser
or Transfer fail alarm output.)
Feature 11 : Fail Alarm On Display
FAIL on the front panel of the ATS-380 indicates that
a transfer was initiated but never completed. This
can point toward a defective motor, transfer
mechanism or the wrong programming for line
3.When the transfers fail alarm occurred, the ATS
will hold this position until the OFF button is pressed
to reset alarm signal.
NOTE! Normally, MCCB type ATS need longer
running time to complete there cycle, so if line 3 is
set wrong the switch stops before completing it’s
cycle and the ATS-380 will give you a FAIL transfer
Alarm. Make sure the line 3 setting is set right
before checking any other parts of the ATS
mechanism.

ATS-380 Automatic Transfer Switch
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SECTION 2 : HARDWARE DESCRIPTION
2.1 General
The purpose of this section is to familiarize the
reader with ATS-380 hardware, its nomenclature,
and to list the unit specifications. The information
presented is divided into the following parts:
●Front Display Window
●Operate Pushbuttons
●Panel LEDs Outputs
●Rear Access Area
2.2 Display Window (Refer to Figure 1)
A 4 digit 7-segment display is used to display all
ATS-380 controller monitored parameters, setting
parameters and messages in easy to read formats.
For details concerning the kind of information that
can be viewed in the display window refer to
Paragraph 3.2.
2.3 Operate Pushbuttons (Refer to Figure 1)
The front operator panel supports five long-life
pushbuttons. Pushbuttons accomplish their function
when pressed and released. Refer to Paragraph 3.3
for information concerning the function of specific
pushbuttons.
2.4 Panel LEDs Outputs (Refer to Figure 1)
Thirteen individual LEDs are lit when performing or
indicating a specific function. For detailed
information on individual LEDs refer to Paragraph
3.4.
2.5 Rear Access Area (Refer to Figure 2)
The rear access area of the ATS-380 controller is
normally accessible from the rear of panel. A wiring
connection to the ATS-380 controller is made at the
rear of the chassis.
For detailed information of connecting wire diagram
refer to Paragraph 6.

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Figure 1
Front Panel
Display
Window
Operator
Pushbutton
ATS status
LEDs

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Figure 2
Rear Area
TB1
TB2
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
10

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SECTION 3 : OPERATOR PANEL
3.1 General
The operator panel, which is normally accessible
from the outside of a panel or door, provides a
means for being alerted to specific conditions,
receiving functional help, programming and
parameter monitoring.
3.2 Display Window
The ATS-380 controller includes a 4 digit 7-segment
display is used to display all monitored parameters,
setting parameters and messages in easy to read
formats.
Different displays can be presented via the display
window:
●Normal source voltage and frequency parameter
display.
●Standby source voltage and frequency parameter
display.
●TDEN,TDNE and TDEC real time countdown
display.
●Program setting parameter display.
NOTICE
Although a wide variety of parameters and
setting can be displayed, they are not
displayed if they were not originally ordered
and programmed.
3.3 Operate Pushbuttons
There are five front panel pushbuttons accomplish
their function when pressed and released. Certain
pushbuttons, like the increase(▲)and decrease(▼)
pushbuttons, will also continue to scroll if they are
pressed and not released at program procedure.
3.3.1 Increase (▲
▲▲
▲) Pushbutton
When the ATS-380 controller operated at normal
status, each press of the increase (▲) key will
change the real parameter display from one phase
to another phase. When the user initiates the
program mode, each press of the Increase (▲) key
will scroll through all available parameter. When
pressing and releasing the increase (▲) button the
displayed parameter can be increased by one. The
Increase (▲) pushbutton will continue to scroll if it is
pressed and not released.
3.3.2 Decrease (▼
▼▼
▼) Pushbutton
At the normal operate status, each press of the
decrease (▼) key will change the real parameter
display between voltage and frequency. When the
user initiates program mode, each press of the
decrease (▼) key will scroll through all available
parameter. When pressing and releasing the
decrease (▼) button the displayed parameter can
be decreased by one. The decrease (▼) pushbutton
will continue to scroll if it is pressed and not
released.
3.3.3 Auto Function Pushbutton
Pushing the AUTO select key, the ATS-380 will run
in automatic mode and a LED is provided to indicate
the auto position. The ATS transfer and retransfer
from source to source as dictated by the features
supplied and their programmed setting values.
3.3.4 Test Function Pushbutton
The ATS-380 is provided with a test pushbutton that
simulates a loss of normal source. Pushing the
TEST select key, the ATS-380 will run in engine test
mode and a LED is provided to indicate the test
position.
3.3.5 Off Function Pushbutton
Pushing the OFF select key, the ATS-380 will run in
off mode. All the functions of the ATS-380 controller
Will be disable.
When in program mode, pushing the off pushbutton
allows the user to change the program line table and
set the selected parameter using decrease (▼) or
increase (▲) button.
3.4 Panel LED Outputs
Auto Position ( Green )
Indicates that the ATS-380 controller is setting to
AUTO function.

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Test Position ( Green )
Indicates that the ATS-380 controller is setting to
TEST function.
Normal Source Available ( Green )
Indicates that the normal source is available and the
voltage and frequency are within the programmed
parameters.
Normal Source Connected ( Green )
Indicates that the transfer switch is connected to the
normal source.
Standby Source Available ( Green )
Indicates that the standby source is available and
the voltage and frequency are within the
programmed parameters.
Standby Source Connected ( Green )
Indicates that the transfer switch is connected to the
standby source.
Load Connected ( Green )
Indicates that the load is connected to the normal or
standby source.
Normal Over Voltage ( Red )
Indicates that the normal source is unavailable and
the voltage is over the programmed parameters.
Normal Under Voltage ( Red )
Indicates that the normal source is unavailable and
the voltage is below the programmed parameters.
Normal Over Frequency ( Red )
Indicates that the normal source is unavailable and
the frequency is over the programmed parameters.
Normal Under Frequency ( Red )
Indicates that the normal source is unavailable and
the frequency is below the programmed parameters.
Standby Over Voltage ( Red )
Indicates that the standby source is unavailable and
the voltage is over the programmed parameters.
Standby Under Voltage ( Red )
Indicates that the standby source is unavailable and
the voltage is below the programmed parameters.
Standby Over Frequency ( Red )
Indicates that the standby source is unavailable and
the frequency is over the programmed parameters.
Standby Under Frequency ( Red )
Indicates that the standby source is unavailable and
the frequency is below the programmed parameters.
SECTION 4 : OPERATION
4.1 General
This section specifically describes the operation and
functional use of the ATS-380 controller. It is divided
into four main categories:
●Automatic mode
●Engine test mode
●Off mode
●Programming mode
The practical use of and operation within each
category will be discussed. In this section it is
assumed that prior sections were reviewed and that
operator has a basic understanding of the hardware.
4.2 Automatic Mode
The automatic mode of the ATS-380 controller
provides for automatic transfer and retransfers from
source to source as dictated by the features
supplied and their programmed values.
The ATS-380 controller intelligence and supervisory
circuits which constantly monitor the condition of
both normal and standby power sources thus
providing the required intelligence for transfer
operations.
For example, automatically initiate an transfer of
power when power fails or voltage level drops below
a preset value. Exactly what the ATS-380 controller
will initiate in response to a given system condition
depends upon the combination of standard and
selected optional features.

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4.3 Engine Test Mode
The ATS-380 is provided with a test pushbutton that
simulates a loss of normal source. Pushing the
TEST key on the front of panel, the ATS-380 will run
in engine test mode. The TDES and TDNE
programmed time delays will be performed as part
of the Test. There are two test modes:
●With load engine test.
●Without load engine test. (The TDNE time delay
will not be performed)
When the user terminated the engine test mode by
press the AUTO pushbutton, then the controller will
return to automatic mode. When normal power is
available, the transfer switch automatically transfers
back from standby source to normal source and
initiates engine shutdown after a preset engine
cooling down time delay.
When the user terminated the engine test mode by
press the OFF pushbutton, the ATS will keeps the
present status and the ATS-380 controller initiates
engine shutdown immediately without cooling down
time delay and returns to off mode.
4.4 Off Mode
The off mode of the ATS-380 controller will disable
all the transferred and protected functions, and all
the status LEDs will be turned off in this mode. The
real time clock will be showed on the front display
window.
In the event that power is lost from the normal
source, the ATS-380 controller will not start the
engine and the ATS can’t transfer the load to the
standby source automatically.
When in program mode, pushing the off pushbutton
allows the user to change the program line table and
set the selected parameter using decrease (▼) or
increase (▲) button.
4.5 Programming Mode
The ATS-380 controller is fully programmable from
the devices faceplate once in the Programming
Mode. Any operator associated with programming
the ATS-380 controller will quickly discover that
ATS-380 controller programming is just a matter of
simple.
Begin to start programming mode, set the
ATS-380on off mode, push the button “ increase (▲)
& decrease (▼) ” on the front panel for 4 seconds.
The word “ Ver 1.0 ” will appear on the front display
window for 2 seconds. This number indicates the
version of the software.
You are now ready to start a line by line
programming sequence. To advance to the next line,
push the OFF button on the front panel. To change
each line’s programming parameters, press the
increase (▲) and decrease (▼) buttons. When
pressing and releasing the increase ( ▲) or
decrease (▼) key the displayed parameter can be
increased or decreased by one. The Increase (▲)
or decrease (▼) pushbutton will continue to scroll if
it is pressed and not released.
Always push the “ OFF ” button to advance to next
programming line or until the word “ END ” appears
on the screen. To immediately end the programming
mode, you can simply push the “ OFF ” button for 4
seconds at any time. Then the word “ END ” on the
display window indicates the end of the
programming mode.
Should you make an error or desire to return to
factory settings, stay in programming mode and
simultaneously press all 3 buttons : increase (▲),
decrease (▼) and OFF for 4 seconds. The ATS-380
controller will now automatically program itself to
factory settings and the word “ Au.Po ” will appear
on the display window. ( See line by line
programming table for ATS-380 factory settings. )

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＊
＊＊
＊LINE BY LINE PROGRAMMING TABLE
LINE
DESCRIPTION VALUE Factory
Setting
1 System voltage setting ( 250V ~ 500V ) Key in the real volt of normal side R & T 380V
2 Is this ATS operator in 1Ø or 3Ø 1) 1Ø 2) 3Ø 2
3 Selected the Switch type of ATS 1) MCCB type
2) Double throw type
3) Magnetic contactor type 1
4 Plant Manual test with or without load 1) Test without load 2) Test with load 2
5 TDEN – Time delay emergency to normal 0 ~ 60 ( 0 ~ 300sec ) 2
(10sec)
6 TDNE – Time delay normal to emergency 0 ~ 60 ( 0 ~ 300sec ) 2
(10sec)
7 TDES – Time delay engine start 0 ~ 06 ( 0 ~ 30sec ) 1
(5sec)
8 TDEC – Time delay engine cool-down 0 ~ 60 ( 0 ~ 300sec ) 12
(60sec)
9 Normal source over voltage setting 39 ~ 48 ( 390V ~480V ) 42
(420V)
10
Normal source under voltage setting 28 ~ 37 ( 280V ~ 370V ) 34
(340V)
11
Time delay if there is a problem with normal
source voltage output 0 ~ 99sec
( 0 = Without voltage monitor function ) 10 Sec
12
Normal source over frequency setting 51 ~ 70Hz 55Hz
13
Normal source under frequency setting 40 ~ 59Hz 45Hz
14
Time delay if there is a problem with normal
source frequency output 0 ~ 99sec
( 0 = Without freq monitor function ) 10 Sec
15
Standby source over voltage setting 39 ~ 48 ( 390V ~480V ) 42
(420V)
16
Standby source under voltage setting 28 ~ 37 ( 280V ~ 370V ) 34
(340V)
17
Time delay if there is a problem with standby
source voltage output 0 ~ 99sec
( 0 = Without volt monitor function ) 10 Sec
18
Standby source over frequency setting 51 ~ 70Hz 55Hz
19
Standby source under frequency setting 40 ~ 59Hz 45Hz
20
Time delay if there is a problem with standby
source frequency output 0 ~ 99sec
( 0 = Without freq monitor function ) 10 Sec
21
Current day of week setting 1 ~ 7 (Mon to Sun) current
22
Current hour setting 00 ~ 23 current
23
Current minute setting 00 ~ 59 current
24
Plant exerciser test day of week 1 ~ 7 (Mon to Sun) 6(Sat)
25
Plant exerciser hour 00 ~ 23 12
26
Plant exerciser minute 00 ~ 59 00
27
Engine run time on exerciser 0 ~ 60 min ( 0 = Without exerciser function )
0
28
Plant exerciser test with or without load 1) Without load 2) With load 1
29
Display mode setting 1) Cyclic mode 2) Fix mode 1
30
Auxiliary contactor feature (The contactor just
can define to one of the three features) 1) Transfer fail alarm 2) Pre-
transfer signal
3) Pre-exerciser signal 2
31
Pre-transfer time delay before transfer load
from one source to another source 1 ~ 99 sec
10 Sec
32
Pre-exerciser time delay before engine
exerciser test 1 ~ 99 sec
10 Sec

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4.6 Specification Summary
PARAMETER SPECIFICATION
Input Control Voltage 280 VAC to 480 VAC 50/60 Hz
Voltage Measurement Range 280 VAC to 480 VAC 50/60 HZ
Frequency Measurement Range 40HZ to 70HZ
Generator Start Relay 7A @ 250VAC Max
Transfer to Normal Relay 7A @ 250VAC Max
Transfer to Standby Relay 7A @ 250VAC Max
Auxiliary Relay 0.5A @ 120VAC
1.0A @ 24VDC
Operating Temperature -20
°
C ~ 70
°
C
Storage Temperature -35
°
C ~ 85
°
C
Operating Humidity 0 to 95% relative humidity
SECTION 5 : INSTALLATION INSTRUCTIONS
5.1 General
The ATS-380 controller has been designed for front panel mounting.
5.2 Panel Cut-Out ( All Dimensions in MM. )

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5.3 Unit Dimensions ( All Dimensions in MM. )
SECTION 6 : TYPICAL WIRING
6.1 General
It is dangerous to feed high voltage to the ATS-380
Printed Circuit boards. The ATS-380 controller
operates with system voltage from 280 VAC t0 480
VAC at 50 or 60 Hz.
The ATS-380 allowed User to adjust the display
voltage by key in the real voltage value of normal
source L1 ~ L3.The ATS-380 controller will follow
the scale between input volt and key in volt and
show the correct voltage on the display window.
(refer to program line 1)
The ATS-380 maximum transfer current is 6 Amps,.
When the switch transfer current over 6 Amps, two
external power relays is recommended. ( The
connecting wire diagram refer to 6.5 section. )
ATS Controller

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6.2 4P 380V Connecting Wire Diagram
6.2.1 MCCB Type Wiring Diagram
ATS-380 CONTROL UNIT
MOTOR

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6.2.2 One Coil Double Throw Typical Wiring Diagram
ATS-380 CONTROL UNIT

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6.2.3 Two Coils Double Throw Type Wiring Diagram
ATS-380 CONTROL UNIT

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6.2.4 Magnetic Contactor Type Wiring Diagram
ATS-380 CONTROL UNIT

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6.3 3P 380V Connecting Wire Diagram
6.3.1 MCCB Type Wiring Diagram
Normal Phase N Emergency Phase N
MOTOR
ATS-380 CONTROL UNIT

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6.3.2 One Coil Double Throw Typical Wiring Diagram
Normal Phase N Emergency Phase N
ATS-380 CONTROL UNIT