S.& A.S. OMEGA-ATS User manual

OFFICE: BOUTROS BLDG., 1ST BSMT, CHEIKH‐GHABI, BEIRUT 2068 7808
TEL: 961‐1‐216994 (2 LINES), FAX: 961‐1‐339600
HEADQUARTERS AND FACTORY: S. & A. S. BLDG, SEASIDE ROAD, JIEH CHOUF
TEL: 961‐7‐996333 (2 LINES), FAX: 961‐7‐996116
TECHNICAL SUPPORT: 961‐71‐996333 E-MAIL: [email protected]OM
WWW.SASCONTROLLERS.COM
USER’S MANUAL
FOR H/W VERSION 1.2/1.2a
FOR S/W VERSION 1.0 1925
AUTOMATIC TRANSFER SWITCH CONTROLLER
AUTOMATIC TRANSFER SWITCH CONTROLLER
OMEGA-ATS/ATSO
OMEGA-ATS/ATSO
..
..

1 .GENERAL DESCRIPTION
1 .GENERAL DESCRIPTION
2. FRONT PANEL
2. FRONT PANEL
DESCRIPTION
DESCRIPTION
3. TECHNICAL
3. TECHNICAL
SPECIFICATIONS
SPECIFICATIONS
2.1 MEASURED AND DISPLAYED
MEASUREMENTS
2.1.1 DISPLAYED PAGES
2.1.2 SYMBOLS DESCRIPTIONS
2.2 FRONT PANEL LEDS
2.3 DETECTED AND SIGNALED FAULTS
2.3.1 GENSET STATUSES
2.3.2 FAULTS
2.3.3 UTILILTY STATUES
2.3.4 UTILITY FAULT
2.4 MENU DESCRIPTION
2.4.1 PASSWORD
2.4.2 ACCESSING THE MENU
2.4.3 SUBMENUS
2.4.4 CONFIGURATION SUBMENU
2.4.5 GENSET SUBMENU
2.4.6 UTILITY SUBMENU
2.4.7 MODBUS SUBMENU
2.4.8 ETHERNET SUBMENU
2.4.9 LCD DISPLAY SUBMENU
2.4.10 SD CARD SUBMENU
2.4.11 MENU MAPPING WITH
PREVIOUS VERSION
2.5 PARAMETER DESCRIPTION
2.6 TERMINAL DESCRIPTION
5. SD CARD
5. SD CARD
RETRIEVAL
RETRIEVAL
4. FIRMWARE
4. FIRMWARE
UPGRADE
UPGRADE
6. DIMENSIONS
6. DIMENSIONS
& TYPICAL WIRING
& TYPICAL WIRING
DIAGRAM
DIAGRAM
5.1 DATA SAMPLING AND RETRIEVAL
4.1 INSTALLING THE SAS DEVICE
FIRMWARE UPGRADE SOFTWARE
4.2 INSTALLING THE SAS DEVICE
USB DRIVER
4.2.1 DRIVER SETUP FOR
WINDOWS VISTA/WIN7
4.2.2 DRIVER SETUP FOR
WINDOWS XP
4.3 FIRMWARE UPGRADE
PROCESS
4.4 INSTALLING THE SASPTOOL
FIRMWARE APPLICATION ON THE
MOBILE
4.4.1 FIRMWARE UPGRADE
PROCESS
4.5 ONLINE FIRMWARE UPGRADE
6. DIMENSIONS & TYPICAL
WIRING DIAGRAM
1.1 INTRODUCTION
1.2 FEATURES
1.3 OPERATION
3. TECHNICAL SPECIFICATIONS

1 .GENERAL DESCRIPTION
1 .GENERAL DESCRIPTION
1. GENERAL DESCRIPTION
1. GENERAL DESCRIPTION
1.1 INTRODUCTION
1.1 INTRODUCTION
This module controls up to three power sources: mains and two generators (MGG). It is also possible to
congure it to control mains and one generator (MG) or just two generators (GG). It features isolated
measurement of the voltages and frequency on all three sources as well as the current on the load side.
It has four operating modes selectable by the user: OFF, AUTO, MAINS, G1 or G2.
This module can be congured to be used as ATS or ATSO.
The user interface consists of a Graphical LCD display. A mode push button is provided to select the
operating mode and four push buttons are used to access a menu of parameters. The menu gives access to
all timers, set points and other parameters relevant to the control and protection of the installation.
This module comes with RS485, USB and Ethernet communication ports. It also features a 4GB MicroSD card
for data and event logging. Data and event retrieval is done by either USB port or Internet through a
dedicated website.
The rmware could be easily upgraded on site via the USB interface using a desktop application or any smart
phone with a free Android app.
1.2 FEATURES
1.2 FEATURES
• Microcontroller based design
• Measurement and display of the voltages and frequency on the three power sources
• Measurement and display of the current on the load side
• Measurement and display of the power on the load side
• All three supplies are monitored for over/under voltage, phase presence and sequence
• All three supplies are monitored for over/under frequency
• Load side is monitored for over current when it is not supplied by the Mains
• Display of Software version, the internet connection status, the date and time
• Alternate function to keep the running hours of the Gensets similar (For ATS)
• Automatic switching between the two Gensets based on the load (For ATSO)
• Weekly exerciser function
• Ability to control contactor, motorized circuit breakers and motorized changeover switches
• Easy to t DIN standard 184X139 panel mount housing
• Connection is via locking plug and socket connectors
• Front panel LEDs for inputs status
• Menu to provide access to all timers, set points and other parameters
• Over / Under frequency alarm and shut down
• Over / Under voltage alarm and shut down
• Over current alarm and shut down
• Operation by push buttons
• USB interface
• Ethernet interface (optional)
• Serial RS485 Modbus protocol (optional)
• 4GB Micro SD card for event and data logging (optional)
• Internet communication: no software installation required
• Galvanic isolation for all three suppliers AC inputs
• Parameters can be edited and updated from any remote interface at any time even when an
engine is running
• Menu accessible from front panel as well as from the internet.
4

1 .GENERAL DESCRIPTION
1 .GENERAL DESCRIPTION
OMEGA v1.0/1.1 OMEGA v1.2
On-site Firmware Upgrade Not Available Available via USB
Remote Firmware Upgrade Not Available Available via Internet
Faults history Not Available Up to 100 faults if the SD card is mounted
Up to 15 faults if the SD Card is not mounted
User interface
16-char alphanumeric LCD
displays with 5 push buttons
to select between operang modes
New Graphical LCD Display with:
-Easy access to all measurements in
one page
-Easy access to the menu
-One dedicated push buon to select
between modes
-Four push buons to navigate
between displayed pages
Ethernet Interface Not Available Oponal
Modbus Port Not Available Oponal
SD Card Not Available Oponal
Events/Time Logs Not Available Available if the SD card is mounted
5

1.3 OPERATION
1.3 OPERATION
Four operating modes are provided. To switch from one mode to another, press the mode push button till
you reach the required operating mode and then wait for 2 seconds for the operating mode to be applied.
Following is description of the operating modes:
• OFF: In this mode the module cuts power completely from the load.
• AUTO: In MGG and MG installation, the module monitors the Utility supply. When the Utility fails or
its contactor fails to engage, the module counts a “Response” delaybefore starting the genset.
In GG installation, the module monitors the remote control input. When the remote control input becomes
active, the module counts a“Response” delay before starting the genset.
The genset is started only if it is in Ready mode
In MGG and GG installation:
o For ATS type: Following a mains failure, G1 or G2 is started depending on the “Alternate hrs”after
a “Response”delay. Load is engaged after the elapse of the “Warm-up” delay.
If “Alternate hrs”is set to a value of hours, the genset with the less number of run hours is started.
If “Alternate hrs”is set to G1/G2, G1/G2 is started.
Once a genset is feeding the load, it keeps feeding it for the number of hours set in “Alternate hrs”.
o For ATSO type: Following a mains failure, G1 (the smaller genset) or G2 (the bigger genset) is started
depending on the “Req priority”after a “Response” delay. Load is engaged after the elapse of the
“Warm-up” delay.
If the “Req priority” is set to Ld, G2 is requested if the load prior to mains failure was above the“G1 Max
Load %”, Otherwise, G1 is requested. The value of the load supplied by the Mains is retained for 5
minutes only. So if 5 minutes have elapsed from the mains failure, G2 is started always. This could occur
when switching to AUTO mode from Mains or OFF modes.
If the “Req priority” is set to G1/G2, G1/G2 is requested independently from Load.
If G1 is feeding the load and the current goes above the “G1 Max Load %”for a“G1 MaxLd del”delay, G2
is requested. If G2 is feeding the load and the current goes below the“G2 Min Load %”for a“G2 MinLd
del”delay, G1 is requested.
When the Mains is re-established, the power is switched back with a dead transfer time“Transfer”after a
restoration delay “Mains Rest.”and the genset is shut down after the elapse of the“Cooling”time. For
MGG and GG installation, in case the requested genset fails to start or its contactor fails to engage or it
shuts down due to any fault, the other genset will automatically start and supply the load. If the “Hold
Start”is enabled, and in case the genset failed to start, the start signal remains on so that when it
restarts, it will feed the load after disengaging the running genset. When the“Hold Start” is disabled, the
start signal is removed. Manual reset is required to recover from this failure. Please refer to section 2 for
display description.
• Mains: The module monitors the Mains supply. The load is fed exclusively from this supply if it is within the
acceptable limits. No gensets will be started if the Mains fails.
• G1: In this mode, G2 is always in standby mode. G1 is started when it is in ready modeand the Mains
fails.
• G2: In this mode, G2 is always in standby mode. G1 is started when it is in ready modeand the Mains
fails.
In case contactors are used for the transfer switch, each contactor is controlled by one dry contact. The
other dry contact is used as an alarm output (CxD.NO).
If motorized circuit breakers or changeover switches are used, each motorized breaker/ switch is controlled
by two relays. The rst has one normally open dry contact (CxENG) and is used to engage the motorized
circuit by giving a pulse of 2 seconds, the second is controlled by a contact that has a common (CxC),
normally open (CxD.NO) and normally closed (CxD.NC) contacts to disengage the motorized circuit breaker
by giving a pulse of 4 seconds.
1 .GENERAL DESCRIPTION
1 .GENERAL DESCRIPTION
Presettable in the menu. Refer to Section 2.4
Refer to Section 2.5
6

2. TERMINAL
2. TERMINAL
DESCRIPTION
DESCRIPTION
2. FRONT PANEL DESCRIPTION
2. FRONT PANEL DESCRIPTION
2.1 MEASURED AND DISPLAYED MEASUREMENTS
2.1 MEASURED AND DISPLAYED MEASUREMENTS
2.1.1 DISPLAYED PAGES
2.1.1 DISPLAYED PAGES
• Graphical interface showing all power sources with their contactors states, voltages,
frequencies, currents and power in KW.
Display
Display
Notes
Notes
The line-neutral and line-line voltages are all
measured. The voltage displayed is either
fixed on one voltage or allowed to scroll
automatically between all six voltages (RN,
SN, TN, RS, ST, and TR). The ESC
ESC
push
button is used to switch between the two
display modes.
• Statuses page that shows the status of each power source.
Display
Display
Notes
Notes
Refer to section 2.3 for the available status
displayed
• Separate page for each power source showing the status, contactor state, scrolling voltages,
frequency, currents and power in KW.
Display
Display
Notes
Notes
The ESC
ESC
push button is used to start/stop
the voltages scrolling.
Long press on the Select
Select
push button for 3
seconds resets the occurring fault.
• Page showing the running hours for each generator and The Omega operating mode currently
selected.
Display
Display
• Page showing the running hours for each generator and The Omega operating mode currently
selected.
Display
Display
7

2. TERMINAL
2. TERMINAL
DESCRIPTION
DESCRIPTION
• Micro SD card page showing the SD card status, data consumption and last format date.
Display
Display
• Ethernet page showing the Site ID, the Ethernet S/W version, revision number and the communication
state.
Display
Display
The UP
UP
and Down
Down
push buttons are used to scroll between the above pages. To access the parameters menu,
Press and release the Select push button.
2.1.2 SYMBOLS DESCRIPTIONS
2.1.2 SYMBOLS DESCRIPTIONS
Symbol Descripon
Generator is off.
When blinking, it indicates that the generator is requested to start/stop or it is running
with an anomaly or/and no valid OK feedback.
When On, it indicates that the generator supply is within the acceptable limits, the
phases are all present and in the right sequence, and the OK signal is acve.
Mains power source is absent.
When blinking, it indicates that the Mains power source is detected but with no valid
measurements or/and wrong phase sequence.
When On, it indicates that the Mains supply is within the acceptable limits, the phases
are all present and in the right sequence.
Generator is in a faulty status with no start order, Fault reset is needed.
Generator Failed to start and the start order is acve (hold start is enabled).
Order to disengage contactor is given.
Order to engage contactor is given.
The exclamaon mark blinks to indicate that Order to disengage contactor is given but
the contactor feedback is acve.
The exclamaon mark blinks to indicate that Order to engage contactor is given but
the contactor feedback is inacve.
8

2. TERMINAL
2. TERMINAL
DESCRIPTION
DESCRIPTION
2.2 FRONT PANEL LEDS
2.2 FRONT PANEL LEDS
• Five Leds used to indicate the operating mode.
• Seven input Leds used to indicate the status of the inputs.
2.3 STATUS AND FAULTS
2.3 STATUS AND FAULTS
2.3.1 GENSET STATUSES
2.3.1 GENSET STATUSES
Status Display Abbreviation
Standby ( Not ready) Standby Standby
Ready Ready Ready
Counng Response delay to give start order Response RSP
Start order is given (ST.Gx engaged) Starng Starng
Gx OK signal active with No AC signals from genset OK-WaingAC OK-NoAC
Counng Warm-up delay to engage load Warm Up WUp
Engaging load (CGx Engaged) with No CGx F/B detected yet Engaging Engaging
Load engaged (CGx Engaged with CGx F/B detected) with No CG F/B
detected yet Engaged Engaged
Feeding the load (CGx Engaged with CGx F/B & CG F/B detected ) Feeding Load Feeding
Disengaging the load (CGx Disengaged) with CGx and/or CG F/B sll
detected Disengaging Diseng.
Counng Cooling delay to disengage start order Cooling COL
Shuing down ( Start order released) Shutng SDN
2.3.2 GENSET FAULTS
2.3.2 GENSET FAULTS
Fault Display Abbreviaon
Start Fail caused by absence of Gx OK signal StFail-NoOK StF.NoOK
Start Fail caused by Failure of G contactor StFail-CG-F StF.CG-F
Start Fail caused by Failure of Gx contactor StFailCGx-F StF.CGxF
Start Fail caused by Absence of AC signals StFail-NoAC StF.NoAC
Start Fail caused by High voltage StFail-HiV. StF.HiV
Start Fail caused by Low voltage StFail-LoV. StF.LoV
Start Fail caused by High frequency StFail-HiF. StF.HiF
Start Fail caused by Low frequency StFail-LoF. StF.LoF
Start Fail caused by wrong phase sequence StFail-Seq-F StF.Seq
Start Fail caused by G contactor jam StFail-CGJam StF.CG-J
Start Fail caused by Mains contactor jam StFail-CMJam StF.CM-J
Start Fail caused by the other generator contactor jam StFail-CGyJam StF.CGyJ
Start Fail caused by the expire of start failure delay StFail-Time StF.Time
Gx OK Signal lost aer generator has turned on OK Failure OK Fail
Global contactor failure CG Fail CG Fail
CGx Contactor failure CGx Fail CGx Fail
One of the three-phase voltages goes above the over voltage limits set by
OVolt(L-N) for a delay of OVolt del. Hi Voltage Hi Volt.
One of the three-phase voltages goes below the under voltage limits set by
UVolt(L-N) for a delay of UVolt del. Lo Voltage Lo Volt.
The frequency goes above the value set in Over Freq. for a delay of OFreq
del. Hi Freq. Hi Freq.
The frequency goes below the value set in Under Freq. for a delay of UFreq
del. Lo Freq. Lo Freq.
The phases are reversed Wrong Seq. Seq.Fail
The load exceeds the value set by Overload % for a delay of Overld del Over Load Over Ld.
9

2.3.3 UTILITY STATUSES
2.3.3 UTILITY STATUSES
2.3.4 UTILITY FAULTS
2.3.4 UTILITY FAULTS
Status Display Abbreviaon
Standby (not ready) Standby Standby
Ready Ready Ready
Ulity Absent Absent Absent
Counng Restoring delay Restoring Rest.
Engaging load (CM engaged with No CM F/B detected yet) Engaging Engaging
Feeding the load (CM engaged with CM F/B detected ) Feeding Load Feeding
Disengaging load CM Disengaged) with CM sll detected Disengaging Diseng.
Fault Display Abbreviation
Ulity contactor failure C-U Fail CU Fail
One of the three-phase voltages goes above the over voltage limits set by
OVolt(L-N) for a delay of OVolt del. Hi Voltage Hi Volt.
One of the three-phase voltages goes below the under voltage limits set by
UVolt(L-N) for a delay of UVolt del. Lo Voltage Lo Volt.
The frequency goes above the value set in Over Freq. for a delay of OFreq
del. Hi Freq. Hi Freq.
The frequency goes below the value set in Under Freq. for a delay of UFreq
del. Lo Freq. Lo Freq.
The phases are reversed Wrong Seq. Seq.Fail
2. TERMINAL
2. TERMINAL
DESCRIPTION
DESCRIPTION
10

2. TERMINAL
2. TERMINAL
DESCRIPTION
DESCRIPTION
2.4 MENU DESCRIPTION
2.4 MENU DESCRIPTION
2.4.1 PASSWORD
2.4.1 PASSWORD
A password is required for accessing the menu. The password consists of 4 digits. Two passwords can access
the menu. The rst is provided by S. & A.S. Co. Ltd. and is referred to as client password. This password can
only be changed by S. & A.S. Co. Ltd. The second password is referred to as the user password. The user
password can be modied in the menu. The client password accesses all the items in the menu whereas the
user password is denied access to some of the menu items.
2.4.2 ACCESSING THE MENU
2.4.2 ACCESSING THE MENU
Follow the steps described below to access the menu:
1. Press the Select push button once. You will be prompted to enter a four-digit code. The default
password is 0000.
2. Use the UP and DOWN push buttons to scroll to the desired number.
3. Press the Select push button. "*" replaces the rst digit.
4. Repeat steps 2 and 3 until all four digits are entered.
5. If the entered password is valid, the user will have access to the menu below for 10 minutes without
the need to re-enter the password for every menu access.
While in the menu, if no push buttons are pressed for 25 seconds or if the ESC button is pressed, the system
will automatically exit the menu.
While editing a parameter in the menu, if no push buttons are pressed for 10 seconds or if the ESC button is
pressed, the system will automatically exit the edit mode.
While in the menu, The UP/DOWN push buttons are used to scroll up/down the submenus or the parameters
list. The Select push button accesses the submenu or edits the parameter.
While editing a parameter in the menu, The UP/DOWN push buttons are used to increment/decrement the
parameter value. The Select push button saves the changes done on the parameter edited.
2.4.3 SUBMENUS
2.4.3 SUBMENUS
What you see on the display Descripon Visibility Condition
Configuraon Configuraon sub menu N/A
Genset Generator sub menu N/A
Ulity Ulity sub menu For MGG & MG installaon type
Modbus Modbus sub menu Modbus Hardware Available
Ethernet Ethernet sub menu Ethernet Hardware Available
LCD Display LCD Display sub menu N/A
SD Card SD Card sub menu SD Card Hardware Available
View Faults View faults At least one fault exists
Erase Faults Erase faults At least one fault exists
11

2.4.4 CONFIGURATION SUBMENU
2.4.4 CONFIGURATION SUBMENU
2.4.5 GENSET SUBMENU
2.4.5 GENSET SUBMENU
What you see on the
display Descripon Visibility Condition Range Default Value
Omega Type Omega Type Client P/W ATS: for 2 gensets of the same rang
ATSO: for 2 gensets of different rang N/A
ATS Type ATS Type Client P/W
Cont: for contactor outputs
MCB: for motorized circuit breakers
MCO: for motorized changeover
switches
Cont
Inst. Type Installaon Type Client P/W
MGG: 1 Mains and 2 gensets
MG: 1 Mains and 1 genset
GG: 2 gensets
MGG
Company Company Name Client P/W 12 Characters long S.& A.S. LTD
User P/W User password N/A 0000 to 9999 N/A
Date Date N/A N/A N/A
Time Time N/A N/A N/A
What you see on the
display Descripon Visibility Condition Range Default Value
Response Response delay N/A 0 to 999 sec 5 sec
Flt bypass Fault bypass delay N/A 0 to 999 sec 15 sec
Warm-up Warming up delay N/A 0 to (Start Fail - Transfer dead time -
10) sec 10 sec
Offdelay Offdelay “Inst. Type” set to GG 0 to 999 sec 10 sec
Transfer Transfer dead me
delay N/A 0 to (Start Fail – Warm up - 10) sec 0 sec
Cooling Cooling down delay N/A 0 to 999 sec 30 sec
Over Freq Over frequency N/A N, 10 Hz to 70 Hz 55 Hz
OFreq del. Over frequency delay N/A 0 to 999 sec 2 sec
Under Freq Under frequency N/A N, 10 Hz to 70 Hz 45 Hz
UFreq del. Under frequency delay N/A 0 to 999 sec 2 sec
OVolt(L-N) Over voltage (Line-
Neutral) N/A N, 1 to 260 V 240 V
OVolt del. Over voltage delay N/A 0 to 999 sec 3 sec
UVolt(L-N) Under voltage (Line-
Neutral) N/A N, 1 to 260 V 180 V
UVolt del.
Under voltage delay N/A 0 to 999 sec 5 sec
G-Seq Test Generator phase
sequence test N/A N: Phase sequence test disabled
Y: Phase sequence test enabled N
2. TERMINAL
2. TERMINAL
DESCRIPTION
DESCRIPTION
12

Start Fail Start fail delay N/A (Warm up +Transfer dead me+10) to
999 sec 45 sec
Hold Start Hold Start feature Client P/W
N: Start order released aer start
failure
Y: Start order held aer start failure
Time Switch Time Switch operaon N/A N: Operaon disabled
Y: Operaon enabled N
Ready @ Gensets ready at me “Time Switch” set to Y N/A 8:00 AM
Stdby @ Gensets standby at
me “Time Switch” set to Y N/A 5:00 PM
All Days Ready Gensets ready feature N/A N: Have to set the gensets ready days
Y: Gensets ready all days of the week Y
Sunday Gensets readiness on
Sunday “All Days Ready” set to N N: Genset not ready on Sunday
Y: Genset ready on Sunday N
Monday Gensets readiness on
Monday “All Days Ready” set to N N: Genset not ready on Monday N
Tuesday Gensets readiness on
Tuesday “All Days Ready” set to N Y: Genset ready on Tuesday N
Wednesday Gensets readiness on
Wednesday “All Days Ready” set to N N: Genset not ready on Wednesday N
Thursday Gensets readiness on
Thursday “All Days Ready” set to N Y: Genset ready on Thursday N
Friday Gensets readiness on
Friday “All Days Ready” set to N N: Genset not ready on Friday N
Saturday Gensets readiness on
Saturday “All Days Ready” set to N Y: Genset ready on Saturday N
Weekly Ex. Weekly Exercising N/A N/Y N
Alternate hrs Alternate number of
hours “Omega Type” set to ATS
G1: Highest priority to G1
G2: Highest priority to G2
1 to 99 hours
4 hours
Req Priority Request Priority “Omega Type” set to ATSO
G1: Highest priority to G1
G2: Highest priority to G2
Ld (MGG only): Load dependent
priority
G2
G1 hours G1 running hours Client P/W 0 to 999999 hours 0 hours
G2 hours G2 running hours
“Inst. Type” set to MGG or
GG
Client P/W
0 to 999999 hours 0 hours
R.C. Remote control
configuraon N/A
Gensets Rdy: Gensets are ready
U Present: Simulate ulity presence
v1.0 Compt.: Compable with Omega
v1.0
U Present
NB Phases Gensets connecon N/A 1PH: 1 phase
3PH: 3 phases 3PH
CT rao /5 Current transformer
rao N/A N, 1 to 9999 100
Overload % Gensets Overload % of
the current transformer “Omega Type” set to ATS 0 to 100% 90%
Overld del Gensets Overload delay “Omega Type” set to ATS 0 to 999 seconds 10
G1 Overload % G1 Overload % of the
current transformer “Omega Type” set to ATSO 0 to 100% 90
G1 Overld del G1 Overload delay “Omega Type” set to ATSO 0 to 999 seconds 10
What you see on the
display Descripon Visibility Condition Range Default Value
2. TERMINAL
2. TERMINAL
DESCRIPTION
DESCRIPTION
13

2. TERMINAL
2. TERMINAL
DESCRIPTION
DESCRIPTION
What you see on
the display Descripon Visibility Condition Range Default Value
G2 Overload % G2 Overload % of the
current transformer “Omega Type” set to ATSO 0 to 100% 90
G2 Overld del G2 Overload delay “Omega Type” set to ATSO 0 to 999 seconds 10
G1 Max Load % G1 Maximum Load % of
the current transformer “Omega Type” set to ATSO 0 to 100% 50
G1 Maxld del G1 Maximum load delay “Omega Type” set to ATSO 0 sec to 99 min 10 sec
G2 Min Load % G2 Minimum Load % of
the current transformer “Omega Type” set to ATSO 0 to 100% 30
G2 Minld del G2 Minimum load delay “Omega Type” set to ATSO 0 sec to 99 min 10 sec
Recycle reset Recycle aer Ulity
reset N/A
N: No automac reset is done after a
genset fault
Y: Automac reset is done on faulty
genset when Mains is established
Y
2.4.6 UTILITY SUBMENU
2.4.6 UTILITY SUBMENU
What you see on
the display
Descripon Visibility Condition Range Default Value
Mains Rest. Mains Restoraon delay “Inst. Type” set to MGG or
MG
0 to 999 seconds 10 sec
Over Freq Over frequency “Inst. Type” set to MGG or
MG
N, 10 Hz to 70 Hz 55 Hz
OFreq del Over frequency delay “Inst. Type” set to MGG or
MG
0 to 999 seconds 2 sec
Under Freq Under frequency “Inst. Type” set to MGG or
MG
N, 10 Hz to 70 Hz 45
UFreq del Under frequency delay “Inst. Type” set to MGG or
MG
0 to 999 seconds 2 sec
OVolt(L-N) Over voltage (Line-
Neutral)
“Inst. Type” set to MGG or
MG
N, 1 to 260 V 240 V
OVolt del Over voltage delay “Inst. Type” set to MGG or
MG
0 to 999 seconds 3 sec
UVolt(L-N) Under voltage (Line-
Neutral)
“Inst. Type” set to MGG or
MG
N, 1 to 260 V 180 V
UVolt del Under voltage delay “Inst. Type” set to MGG or
MG
0 to 999 seconds 5 sec
U-Seq Test Ulity phase sequence
test
“Inst. Type” set to MGG or
MG
N: Phase sequence test disabled
Y: Phase sequence test enabled
N
NB Phases Ulity connecon “Inst. Type” set to MGG or
MG
1PH: 1 phase
3PH: 3 phases
3PH
14

2. TERMINAL
2. TERMINAL
DESCRIPTION
DESCRIPTION
2.4.7 MODBUS SUBMENU
2.4.7 MODBUS SUBMENU
What you see on
the display
Descripon Visibility Condition Range Default Value
Modbus Modbus feature Modbus HW available N: Modbus disabled
Y: Modbus enabled
Y
Slave ID Slave node ID “Modbus” set to Y 1 to 247 20
Baudrate Baud rate “Modbus” set to Y 9600
14400
19200
28800
38400
56000
57600
115200
9600
Parity Parity “Modbus” set to Y None
Odd
Even
None
Stop Bits Stop Bits “Modbus” set to Y 1
1.5
2
1
Mode Communicaon Mode “Modbus” set to Y RTU
ASC
RTU
2.4.8 ETHERNET SUBMENU
2.4.8 ETHERNET SUBMENU
What you see on
the display
Descripon Visibility Condition Range Default Value
Ethernet Ethernet feature Ethernet HW available N: Ethernet disabled
Y: Ethernet enabled
Y
DHCP DHCP “Ethernet” set to Y N: DHCP disabled
Y:DHCP enabled
Y
SITEID SITE ID “Ethernet” set to Y 6 Characters long XXXXXX
IP ADDRESS IP ADDRESS “Ethernet” set to Y “DHCP”
set to N
N/A 192.168.0.21
SUBNET MASK SUBNET MASK “Ethernet” set to Y “DHCP”
set to N
N/A 255.255.255.
0
GATEWAY GATEWAY “Ethernet” set to Y “DHCP”
set to N
N/A 192.168.0.1
P.ServerName Primary server name “Ethernet” set to Y 30 Characters long www.sascont
rollers.com
S.ServerName Secondary server name “Ethernet” set to Y 30 Characters long www.sascont
rollers.com
15

2. TERMINAL
2. TERMINAL
DESCRIPTION
DESCRIPTION
2.4.9 LCD DISPLAY SUBMENU
2.4.9 LCD DISPLAY SUBMENU
What you see on
the display Descripon Visibility Condition Range Default Value
LCD Contrast LCD Contrast N/A 0 to 30 12
LCD Backlight LCD Backlight
percentage N/A 0 to 100 % 70 %
2.4.10 SD CARD SUBMENU
2.4.10 SD CARD SUBMENU
What you see on
the display Descripon Visibility Condition Range Default Value
DSR SD Data sampling rate SD card available N, 1 sec to 24 hours 20 sec
2.4.10 SD CARD SUBMENU
2.4.10 SD CARD SUBMENU
OMEGA v1.0/1.1 PARAMETER NAME OMEGA v1.2 PARAMETER NAME OMEGA v1.2 SUBMENU
Response Response GENSET SUBMENU
Flt bypass Flt bypass GENSET SUBMENU
Warm-up Warm-up GENSET SUBMENU
Mains Rest. Mains Rest. GENSET SUBMENU
Cooling Cooling GENSET SUBMENU
U-OverFrq. Hz Over Freq UTILITY SUBMENU
U-OvrFrq dly OFreq del. UTILITY SUBMENU
U-UndrFrq. Hz Under Freq UTILITY SUBMENU
U-UndrFrqdly UFreq del. UTILITY SUBMENU
U-OverVolt. V OVolt(L-N) UTILITY SUBMENU
U-OvrVlt.dly OVolt del. UTILITY SUBMENU
U-UnderVolt. V UVolt(L-N) UTILITY SUBMENU
U-UndrVltdly UVolt del. UTILITY SUBMENU
G-OverFrq. Hz Over Freq GENSET SUBMENU
G-OvrFrq dly OFreq del. GENSET SUBMENU
G-UndrFrq. Hz Under Freq GENSET SUBMENU
G-UndrFrqdly UFreq del. GENSET SUBMENU
G-OverVolt. V OVolt(L-N) GENSET SUBMENU
G-OvrVlt.dly OVolt del. GENSET SUBMENU
G-UnderVolt. V UVolt(L-N) GENSET SUBMENU
G-UndrVltdly UVolt del. GENSET SUBMENU
CT rao /5 CT rao /5 GENSET SUBMENU
Overload % Overload % GENSET SUBMENU
Overld dly Overld del GENSET SUBMENU
Start Fail Start Fail GENSET SUBMENU
Xfr deadm Transfer GENSET SUBMENU
Hold Start Hold Start GENSET SUBMENU
Time switch Time Switch GENSET SUBMENU
G1 hh:mmy hh:mmy G1 Rdy@, G1 Stby@ GENSET SUBMENU
G2 hh:mmy hh:mmy G2 Rdy@, G2 Stby@ GENSET SUBMENU
16

OMEGA v1.0/1.1 PARAMETER NAME OMEGA v1.2 PARAMETER NAME OMEGA v1.2 SUBMENU
G1Alternat hrs G1 Alt. hrs GENSET SUBMENU
G2Alternat hrs G2 Alt. hrs GENSET SUBMENU
W.Exercise Weekly Ex. GENSET SUBMENU
ATS Type ATS Type CONFIGURATION SUBMENU
Installat. Inst. Type CONFIGURATION SUBMENU
LCD Contrast LCD Contrast LCD DISPLAY SUBMENU
Co. Company CONFIGURATION SUBMENU
Time Time CONFIGURATION SUBMENU
Date Date CONFIGURATION SUBMENU
User P/W User P/W CONFIGURATION SUBMENU
G1 hours G1 hours GENSET SUBMENU
G2 hours G2 hours GENSET SUBMENU
2. TERMINAL
2. TERMINAL
DESCRIPTION
DESCRIPTION
2.5 PARAMETERS DESCRIPTION
2.5 PARAMETERS DESCRIPTION
The over/under frequency/voltage could be disabled by setting the corresponding parameter in the menu
to 'N'.
When transferring load from one generator to another, the transfer dead time and the warm up delay are
counted. To avoid getting a fault on the generator, the sum of these delays should not exceed the start fail
delay of the generator. Thus, the“Start Fail” delay should never fall below (“Transfer” + “Warm-up” +10sec).
When “Hold Start” feature is enabled, the start signal is held on the generator after a start failure or an OK
failure fault occurs. Thus, when this fault no longer exists, the generator starts without user intervention.
When it is disabled, the start signal is removed and a manual reset of the fault is required to resume use of
the specic generator.
For ATS, the “Alternate hrs” parameter indicates the number of hours that a generator must run before the
other generator is requested. If set to G1, G1 is given priority and if set to G2, G2 is given priority.
The “Weekly Ex.” parameter enables/disables the weekly exerciser. When enabled, any generator that did
not operate between Sunday and Friday would be started on Saturday at 8:00 am for half an hour. If both
were not used during the whole week, they will be started on Saturday at 8:00AM in sequence and each for
half an hour.
The “Time Switch” manages the operating time of the genset daily. Two parameters control the daily time
switch: “Ready @” and “Stdby @”. “Ready @” sets the time at which the genset becomes ready. “Stdby @” sets
the time at which the genset goes to standby mode. If genset is required to be in ready mode all day then
set “Time Switch” to N.
The “All Days Ready” manages the operating time of the genset weekly. Under “All Days Ready”, if Y is
selected then the genset will be ready all week long. Otherwise, the genset will be ready only in days set to
Y. It will be in standby in days set to N.
As a result, the genset will be ready during the hours set by “Ready @” and “Stdby @” only on days set to
Y under Rdyday.
When “R.C.” is set to “Gensets Rdy”, when remote control is active and genset in ready mode, following a
mains failure, the genset is started. Otherwise, the genset is stopped.
When “R.C.” is set to “U Present”, when remote control is active and genset in ready mode, the genset is
stopped.
When “R.C.” is set to “v1.0 Compt.”, the remote control input will be at the place of CM F/B as in Omega v1.0
& v1.1
17

2. TERMINAL
2. TERMINAL
DESCRIPTION
DESCRIPTION
2.6 MODBUS REGISTERS
2.6 MODBUS REGISTERS
Name type Address Size Access Descripon
Omega Type input register 30001 1 R
Omega Type
0 = ATS
1 = ATSO
Hardware Version input register 30002 1 R Hardware Version
Soware Version input register 30003 1 R Soware Version
Revision number input register 30004 1 R Revision number
Modbus Status input register 30005 1 R Modbus status: 0(normal), 1(malfuncon)
Operang Mode input register 30006 1 R
Operating Mode:
1 = Auto Mode
2 = Mains-Only Mode
3 = G1-Only Mode
4 = G2-Only Mode
Status input register 30010 Ulity 1 R
0 = Ulity Standby
1 = Ulity Ready
2 = Ulity Absent
3 = Ulity Counng restoring delay
4 = Ulity Engaging
5 = Ulity Feeding Load
6 = Ulity Disengaging
7 = C-U Fail
8 = Ulity High Voltage
9 = Ulity Low Voltage
10 = Ulity High Frequency
11 = Ulity Low Frequency
12 = Ulity Wrong Sequence
G1 Status input register 30011 1 R
13 = Engine Standby
14 = Engine Ready
15 = Engine Counting response delay
16 = Engine Starting
17 = Engine OK-WaingAC
18 = Engine Warming Up
19 = Engine Engaging load
20 = Engine Cooling down
21 = Engine Shuing down
22 = Engine's Contactor Engaged
23 = Engine Feeding Load
24 = Engine Disengaging load
25 = Engine OK Failure
26 = Engine - CG Fail
27 = Engine - CGx Fail
28 = Engine - High Voltage
29 = Engine - Low Voltage
30 = Engine - High Frequency
31 = Engine - Low Frequency
32 = Engine - Wrong Sequence
33 = Engine - Over Load
34 = Engine - Start Fail-NoOK
35 = Engine - Start Fail-CG-F
36 = Engine - Start FailCGx-F
37 = Engine - Start Fail-NoAC
38 = Engine - Start Fail-High Voltage
39 = Engine - Start Fail-Low Voltage
40 = Engine - Start Fail-High Frequency
41 = Engine - Start Fail-Low Frequency
42 = Engine - Start Fail-Seq-Fail
43 = Engine - Start Fail-CGJam
44 = Start Fail-CMJam
45 = Engine - Start Fail-CGyJam
46 = Engine - Start Fail-Time
G2 Status input register 30012 1 R Same as G1 Status
18

2. TERMINAL
2. TERMINAL
DESCRIPTION
DESCRIPTION
Name type Address Size Access Descripon
G1 Exercising status input register 30014 1 R
0 = Not Exercising
1 = Exercising Needed
2 = Exercising requested
3 = Exercising stopped
G2 Exercising status input register 30015 1 R
0 = Not Exercising
1 = Exercising Needed
2 = Exercising requested
3 = Exercising stopped
Ulity RN voltage input register 30016 1 R Ulity phase R-Neutral voltage in V
Ulity SN voltage input register 30017 1 R Ulity phase S-Neutral voltage in V
Ulity TN voltage input register 30018 1 R Ulity phase T-Neutral voltage in V
Ulity RS voltage input register 30019 1 R Ulity phase R to phase S voltage in V
Ulity ST voltage input register 30020 1 R Ulity phase S to phase T voltage in V
Ulity TR voltage input register 30021 1 R Ulity phase T to phase R voltage in V
G1 RN voltage input register 30022 1 R G1 phase R - Neutral voltage in V
G1 SN voltage input register 30023 1 R G1 phase S - Neutral voltage in V
G1 TN voltage input register 30024 1 R G1 phase T - Neutral voltage in V
G1 RS voltage input register 30025 1 R G1 phase R to phase S voltage in V
G1 ST voltage input register 30026 1 R G1 phase S to phase T voltage in V
G1 TR voltage input register 30027 1 R G1 phase T to phase R voltage in V
G2 RN voltage input register 30028 1 R G2 phase R - Neutral voltage in V
G2 SN voltage input register 30029 1 R G2 phase S - Neutral voltage in V
G2 TN voltage input register 30030 1 R G2 phase T - Neutral voltage in V
G2 RS voltage input register 30031 1 R G2 phase R to phase S voltage in V
G2 ST voltage input register 30032 1 R G2 phase S to phase T voltage in V
G2 TR voltage input register 30033 1 R G2 phase T to phase R voltage in V
Ulity frequency input register 30034 1 R Ulity frequency in Hz *10 format (i.e. if this register value is
504 this means that the frequency is 50.4Hz)
G1 frequency input register 30035 1 R G1 frequency in Hz *10 format (i.e. if this register value is
504 this means that the frequency is 50.4Hz)
G2 frequency input register 30036 1 R G2 frequency in Hz *10 format (i.e. if this register value is
504 this means that the frequency is 50.4Hz)
RN current input register 30037 1 R Line R current in A *10 format (i.e. if this register value is
125 this means that the current is 12.5A)
SN current input register 30038 1 R Line S current in A *10 format (i.e. if this register value is
125 this means that the current is 12.5A)
TN current input register 30039 1 R Line T current in A *10 format (i.e. if this register value is
125 this means that the current is 12.5A)
Power (KW) input register 30040 1 R Power in KW
Digital Inputs input register 30041 1 R
Surf Digital Inputs
Each bit represents an input (first input is the LSB)
Bit0: IP1
Bit1: IP2
...
Bit6: IP7
Digital Outputs input register 30042 1 R
Surf Digital Outputs
Each bit represents an output (first output is the LSB)
Bit0: OP1
Bit1: OP2
...
Bit7: OP8
Operang Mode holding register 40001 1 R/W
Operang Mode:
1 = Auto Mode
2 = Mains-Only Mode
3 = G1-Only Mode
4 = G2-Only Mode
19

2. TERMINAL
2. TERMINAL
DESCRIPTION
DESCRIPTION
2.6 TERMINAL DESCRIPTION
2.6 TERMINAL DESCRIPTION
C ONNECTOR
TERMINAL
P3 P4
14
CG 1
C Contactor (or motorized CB) G1 – common 20
CG 2
D . NC
Motorized CB G2 disengage – normally
closed
15
CG 1
ENG
Contactor (or motorized CB) G1 engage –
normally opened 21
CG 2
D . NO
Motorized CB G2 disengage – normally
opened
16
CG 1
D . NC
Motorized CB G1 disengage – normally
closed 22
CM
C
Contactor (or motorized CB) Mains –
common
17
CG 1
1
D . NO
Motorized CB G1 disengage – normally
opened 23
CM
ENG
Contactor (or motorized CB) Mains engage
– normally opened
18
CG 2
C Contactor (or motorized CB) G2 – common 24
CM
D . NC
Motorized CB Mains disengage – normally
closed
19
CG 2
ENG
Contactor (or motorized CB) G2 engage –
normally opened 25
CM 
D . NO
Motorized CB Mains disengage – normally
opened
C ONNECTOR
TERMINAL
P5 P6
26 CT T
P 2 Current transformer on line T – p2 32
N
MAIN Neutral - Mains supply
27 CT T
P 1 Current transformer on line T – p1 33
LINE
TM Line T - Mains supply
28 CT S
P 2 Current transformer on line S – p2 34
NOT
USED Not used
29 CT S
P 1 Current transformer on line S – p1 35
LINE
SM Line S - Mains supply
30
CT R
P 2 Current transformer on line R – p2 36
NOT
USED Not used
31 CT R
P 1 Current transformer on line R – p1 37
LINE
RM Line R - Mains supply
C ONNECTOR
TERMINAL
P7 P8
38 N
G 1 Neutral - G1 supply 44
N
G 2 Neutral – G2 supply
39 LINE
TG 1 Line T - G1 supply 45
LINE
TG 2 Line T – G2 supply
40 NOT
USED Not used 46
NOT
USED Not used
41 LINE
SG
1 Line S - G1 supply 47
LINE
SG
2 Line S – G2 supply
42
NOT
USED Not used 48
NOT
USED Not used
43 LINE
RG 1 Line R – G1 supply 49
LINE
RG 2 Line R – G2 supply
C ONNECTOR
TERMINAL
P1 P2
1 -V BAT
SUP -ve baery supply 8
CG
F / B Feedback from G contactor (-ve)
2 +V BAT
SUP +ve baery supply 9
CM
F / B F/B M contactor (-ve)
3 G 1
OK Signal from Autostart of G1 (-ve) 10
ST . G 1
C Output to start G1 - common
4 G 2
OK Signal from Autostart of G2 (-ve) 11
ST . G 1
NO Output to start G1 - normally opened
5 CG 1
F / B Feedback from G1 contactor (-ve) 12
ST . G 2
C Output to start G2 - common
6 CG 2
F / B Feedback from G2 contactor (-ve) 13
ST . G 2
NO Output to start G2 - normally opened
7 RC Remote control input (-ve)
 Used as an alarm output if fault exists on G1 or G2 in case contactors are used for the transfer switch
 Used as an alarm output if utility is absent in case contactors are used for the transfer switch
20