voltages capable of causing shock, burns, or death.
4–line
LCD
display
Enter/Save
Settings
key
Refer to the Operator’s Manual for the ASCO 4000 or
7000 Series ATS product for installation, functional
testing, sequence of operation,and troubleshooting.
Description
ASCO 4000 & 7000 Series Automatic Transfer Switch
products utilize the Group 5 Controller for sensing,
timing, and control functions. This state–of–the art
microproce ssor– based controller includes a built–in
keypad and a four–line LCD display. All monitoringand
control functions can be done with the enclosure door
closed for greater convenience. In addition, all changes
in voltage settings (except for nominal voltage) and time
delayscanbemadethroughasystemofmenus.
TABLE OF CONTENTS
section-page
OVERVIEW
Controls1-1..............................
Settings1-2..............................
SETTINGS
How to Change a Setting2-1...............
Voltage & Frequency2-2...................
Time Delays2-4..........................
Features2-6..............................
General2-8..............................
Engine Exerciser2-10.....................
View Event Log2-12.......................
Service — Statistics / Diagnostics2-13......
OPERATING the CONTROLS
Status of ATS and Sources3-1.............
WARNINGisusedinthismanualtowarn
of possible personal injury.
CAUTIONisusedinthismanualtowarn
of possible equipment damage.
Refer to the outline and wiring drawings provided with
the 4000 or 7000 Series ATS product for all inst allation
and connection details and accessories.
50 Hanover Road, Florham Park, New Jersey 07932–1591 USA
For sales or service call 1 800 800–2726 (ASCO)www.ascopower.com
ASCO POWER TECHNOLOGIES CANADA PO Box 1238, 17 Airport Road, Brantford, Ontario, Canada N3T 5T3
telephone 519 758–8450, fax 519 758–0876, for service call 1 888 234–2726 (ASCO)www.asco.ca
Display Messages and Their Meanings3-2...
DESCRIPTION of OPERATION
Open–Transition4-1.......................
Closed–Transition4-3......................
Delayed–Transition4-6....................
APPENDIX
DIP switch actuatorsA-2...................
Voltage jumper blocksA-4.................
INDEXback page..........................
381333–126 K
Page 2
1--1Overview
Control Overview
4–line LCD display
On the Power Control Center, six keys allow access to all monitoring and setting
functions. Two levels of screens are used. The status level provides information
about the automatic transfer switch. The settings level allows configuration of the
controller. Access to some settings may require entering a password (if the
controller is set for one – see page 2–1 and Appendix A–3).
top 2 lines show the
cause of any action
lower 2 lines show the
status of transfer sequence
tactile keys
(see below)
Power Control Center display and keypad.
Left–Right Arrows
The left A and right " arrow keys (Menu Scroll) navigate through the screens.
Enter/Save Settings
The Enter/Save Settings ¿ key move from the status level to the settings level
screens. It also is used to enter a new s etting.
Up–Down Arrows
The up Y and down B arrow keys (Increase Value and Decrease Value) modifies
a setting (setup parameter) while in the settings level screens.
Esc key
The Esc key ignores a change and returns to the status level.
Page 3
Settings Overview
1--2Overview
The controller settings can be displayed and changed from the keypad.
Some settings may require a password (if the controller is set up for one).
From the ATS Status display, press Enter/Save Settings ¿ keytomovetothe
Settings level of menus.
SETTINGS
SETTINGS
Voltage DO PU
Frequency DO PU
VIEW
Event Log
Press the right arrow key " to see the eight parameter information headings (as
shown below). An overview of each setting is listed below. The detailed menus
for each setting are on the following pages.
8 Parameter Menus (loop back to beginning)
SETTINGS
General
SETTINGS
Time Delays
SETTINGS
Engine Exerciser
SERVICE
Statistics
Diagnostics
SETTINGS
Features
SERVICE
Factory
Selectable Features
Voltage and Frequency Settingsseepage2–2
CP settings and Normal & Emergency voltage and frequency pickup & dropout.
Time Delay Settingsseepage2–4
Bypass running time delay, and settings for all standard time delays.
Features Settingsseepage2–6
Commit on transfer, shed load, phase rotation, and inphase monitor settings.
General Settingsseepage2–8
Reset settings, language, communication, logging, and password.
Engine Exerciser Settingsseepage2–10
Present date and time, seven exercise programs each with six parameters.
View Event Logseepage2–12
Last 99 events in date and time order; six types and seven reasons are logged.
Service Statistics/Diagnostics, Factory Selectable Features
¢ Press up Y and downB arrow keys to changeflashing digit(s)or word and press
Enter/Save Settings ¿ keytomovetonextfield.
£ Repeat step ¢until all the fields have been entered.
If a field is blinking, the CP is waiting for information to be entered.
The Esc key will end the editing session.
Tip
Enter
Password
0
000
Tip
☞
☞
Password
Default password is 1111 (see page 2–8)
If Enter Password displays, y ou must enter the correct password first.
Use the up Y and down B arrow keys to change the flashing digit of the
password. Press the Enter/Save Settings ¿ keytomovetonextnextdigit
(left to right). When the correct password is displayed, press the Enter/Save Settings ¿ key.
If WRONG PASSWORD !!! displays, you are returned to the first flashing
digit. When the correct password is displayed, press the Enter/SaveSettings ¿ key.
You can now change the settings on the selected screen.
Once the password is entered it will stay unlocked for 5 minutes after last
key is pushed so that you do not have to keep entering it. So, to save time,
plan to make all your settings at one time.
Page 5
Voltage & Frequency Settings
S
S
Frequency
Frequency
Unless otherwise specified on the order, the controller voltage and frequency
settings are set at the factory to the default values. If a setting must be changed,
carefully follow the procedure on the next page. Some settings may require a
password (if the controller is set up for one).
Any indiscriminate change in these settings may affect the normal
operation of the Automatic Transfer Switch. This change could allow
the load circuits to remain connected to an inadequate source.
2 --- 2Settings
DescriptionSettings
Dropout85 %70 to 98 %
Pickup90 %85 to 100 %
Normal
ource
Voltage
Emergency
ource
Voltage
Normal
Source
Emergency
Source
Over Voltage Trip *off102 to 115 %
Unbalance Enablenoyes or no
Unbalance Dropout20 %5to20%
Unbalance Pickup10 %3to18%
Dropout75 %70 to 98 %
Pickup90 %85 to 100 %
Over Voltage Trip *off102 to 115 %
Unbalance Enablenoyes or no
Unbalance Dropout20 %5to20%
Unbalance Pickup10 %3to18%
Dropout90 %85 to 98 %
Pickup95 %90 to 100 %
Over Frequency Trip *off102 to 110 %
Dropout90 %85 to 98 %
Pickup95 %90 to 100 %
Over Frequency Trip *off102 to 110 %
Default Setting
%ofnominal
Adjustment Range
increments of 1%
Display Screen
(see next page)
NORMAL VOLTAGE
Dropout
NORMAL VOLTAGE
Pickup
NORMAL VOLTAGE
OV Trip
NORMALVOLTAGEUNBAL
Enable
NORMALVOLTAGEUNBAL
Dropout
NORMALVOLTAGEUNBAL
Pickup
EMERG VOLTAGE
Dropout
EMERG VOLTAGE
Pickup
EMERG VOLTAGE
OV Trip
EMERG VOLTAGE UNBAL
Enable
EMERG VOLTAGE UNBAL
Dropout
EMERG VOLTAGE UNBAL
Pickup
NORMAL FREQUENCY
Dropout
NORMAL FREQUENCY
Pickup
NORMAL FREQUENCY
OF Trip
EMERG FREQUENCY
Dropout
EMERG FREQUENCY
Pickup
EMERG FREQUENCY
OF Trip
* The Over Voltage and Over Frequency reset is fixed at 2% below the trip setting.
Page 6
2--3Settings
Voltage & Frequency Settings
The controller (CP) voltage and frequency setting can be displayed and changed
from the keypad. See the table on the previous page. Some settings may require
a password (if the controller is set up for one).
¡ From any of the Status displays, press the Enter/Save Settings ¿ key to move
5 Voltage & Frequency Menus (last menu loops back to first)
CP Settingsseepage2–1
This display shows the base configuration of the controller. These settings are
hardware activated and cannot be changed from the keypad:
Nominal source voltage — Normal and Emergency sources
Nominalsourcefrequency—50or60Hz
Normal & Emergency source sensing — single or 3 phase
Switch type — open, closed, or delayed transition
Normal Voltageseepage2–1
This display shows pickup, dropout, and over–voltage trip settings for the
Normal source. They are in percentage of nominal voltage and volts rms.
Normal Frequencyseepage2–1
This display shows pickup, dropout, and over–frequency trip settings for the
Normal source. They are in percentage of nominal frequency and Hz.
Normal Voltage Unbalanceseepage2–1
This display appears only if the CP is set for3 phase sensing onNormal. When
enabled, the CP considers the Normal source unacceptable if the calculated
voltage unbalance is greater than the specified dropout.
Emerg Voltageseepage2–1
This display shows pickup, dropout, and over–voltage trip settings for the
Emergency source. They are in percent of nominal voltage and volts rms.
Emerg Frequencyseepage2–1
This display shows pickup, dropout, and over–frequency trip settings for
Emergency source. They are in percentage of nominal frequency and Hz.
Emerg Voltage Unbalance (not shown)see page 2–1
This display appears only if the CP is set for 3 phase sensing on Emergency.
When enabled, the CP considers the Emergency source unacceptable if the
calculated voltage unbalance is greater than the specified dropout.
Page 7
Time Delay Settings
A
4ACTS
Unless otherwise specified on the order, the Controller time delay settings are set at the
factory to the default values. If a setting must be changed, follow the procedure on the
next page. Some settings may require a password (if controller is set up for one).
Any indiscriminate change in these settings may affect the normal operation of the Automatic Trans-
fer Switch. This change could allow the load circuits to remain connected to an inadequate source.
2 --- 4Settings
FeatureTime DelayDefault Setting
1C ③
1F
2Btransfer to Emergency00to60min59secTD N>E
2E
3
31F ④
31M ④
31F, 31M
31G ④
31N ④
31G, 31N
,
7ACTS,
7ACTB
only①
4ADTS,
7ADTS/B
only
②
override momentary
Normal source outages
override momentary
Emergency source outages
unloaded running
(engine cooldown)
retransfer to Normal
(if Normal fails)
retransfer to Normal
(if just a test)
Normal to Emergency
pre–transfer signal
Normal to Emergency
post–transfer signal
bypass 31F & 31M
if Normal fails
Emergency to Normal
pre–transfer signal
Emergency to Normal
post–transfer signal
bypass 31G & 31N
if Emergency fails
in sync1.5 second
failure to s ynchronize5 minutes0to5min59sec
extended parallel time0.5 second
delay transition time00to5min59sec
1second
00to60min59secTD EmrgFail
5 minutes0to60min59secTD EngCool
30 minutes0to60min59sec
30 seconds
00to5min59sec
00to5min59sec
noyes or no
00to5min59sec
00to5min59sec
noyes or no
Adjustment Range
1 sec. increments
0to6sec
see CAUTION below
0 to 9 hours
59 min 59 s ec
0to3.0seconds
0.1 sec increments
0.100 to 1.000 sec
0.01 sec increments
Display Screen
(see next page)
TD NormFail
TD E>N if
Normal Fail
TD E>N if
Tes t M od e
TD N>E Xfer Signal
TD N>E Xfer Signal
TD N>E Xfer Signal
BypassIfNFail
TD E>N Xfer Signal
TD E>N Xfer Signal
TD E>N Xfer Signal
BypassIfEFail
CTTS TD
SyncMonitorTD
CTTS TD
FailToSyncTD
CTTS TD
XtdParallelTD
DTTS TD
LoadDisconnDelay
PreXfer
PostXfer
PreXfer
PostXfer
① These time delays appear only on the display for a 4ACTS, 7ACTS, or 7ACTB closed–transition transfer switch.
② This time delay appears only on the display for a 4ADTS, 7ADTS, or 7ADTB delayed–transition transfer switch
③ Standard adjustment up to 6 seconds (total power outage). For additional time delay contact ASI. See CAUTION.
④ If output contacts required, contact ASI at 1–800–800–2726.
Do not set Feature 1C TD longer than 6 sec. unless an external 24 V dc
power supply is included. Contact ASI if longer than 6 sec. is required.
Page 8
2 --- 5
Settings
Time Delay Settings
The controller time delay (TD) settings can be displayed and changed from the
keypad. Some settings may require a password (if the control panel is set up for
one).
①
SETTINGS
Voltage DO PU
Frequency DO PU
②
SETTINGS
Time Delays
③
Bypass Currently
Running TD:_
External Battery: No
④
TD NormFail:mins
TD N>E:mins
TD EmrgFail:mins
TD EngCool:mins
① From any of the Status displays, press the Enter/Save Settings key to move to
the Settings level of menus.
② Press the right arrow keytomovetotheSetting Time Delays display.
③ Now press Enter/Save Settings keytomovetothefirstTime Delay menu.
④Yo u c a n p r e s s t h e right arrow key to see the other time delay menus (as shown
below). An overview explanation of each setting is listed below.
5 Time Delay Menus (last menu loops back to first)
Bypass Currently Runni ng TDseepage2–1
This display allows you to bypass some time delays. When the display is set
to Yes the controller will bypass any of these time delays
Feature 1C — Momentary Normal failure time delay
Feature 2B — Normal to Emergency transfer time delay
Feature 3A — Emergency to Normal transfer time delay
External Battery: see CAUTION on bottom of page 2–4
Ye s means externalbattery connected, Feature 1C can be set longer than 6 sec.
No mean there is no external battery, Feature 1C can be set for 0–6 sec. only
Standard Time Delaysseepage2–1
This display shows the settings for the following standard time delays:
Feature 1C — Momentary Normal source failure time delay
Feature 2B — Normal to Emergency transfer time delay
Feature1F—MomentaryEmergencysourcefailuretimedelay
Feature 2E — Engine cooldown time delay
TD E>N if
Normal Fail:mins
Test Mode:hmins
TD N>E X fer Signal
BypassIfNFail:
PreXfer:mins
PostXfer:mins
TD E>N X fer Signal
BypassIfEFail:
PreXfer:mins
PostXfer:mins
TD E>N ifseepage2–1
This display shows the settings for Feature 3A retransfer to Normal time
delay. There are two modes:
Normal source outage — retransfer TD if Normal fails
Transfer Test — retransfer TD if just a test
TD N>E Xfer Signalseepage2–1
This display shows the settings for the time delays used to signal external
equipment before and after transfer from Normal to Emergency:
Feature 31F — Pre–transfer time delay signal
Feature 31M — Post–transfer time delay signal
TD E>N Xfer Signalseepage2–1
This display shows the settings for the time delays used to signal external
equipment before and after retransfer from Emergency to Normal:
Feature 31G — Pre–transfer time delay signal
Feature 31N — Post–transfer time delay signal
CTTS TDs (not shown)see page 2–1
DTTS TD (not shown)see page 2–1
Page 9
Features Settings
Unless otherwise specified on the order, the controller features settings are set at the
factory to the default values. If a setting must be changed, follow the procedure on the
next page. Some settings may require a password (if the controller is set up for one).
Any indiscriminate change in these settings may affect the normal operation of the Automatic Trans-
fer Switch. This change could allow the load circuits to remain connected to an inadequate source.
2 --- 6Settings
FeatureDefault SettingAdjustment Range
commit to transfernoyes or no
shed load directionfrom Efrom N or from E
shed load in phasenoyes or no
shed load in phase time delay1.5 second
shed load isolate load
on source failure
shed load isolate load on test 17②
phase rotation monitor enable ③
phase rotation monitor reference ③
inphase monitor enable ④
②
0to3.0seconds
0.1 sec increments
yesyes or no
noyes or no
noyes or no
ABCABC or CBA
noyes or no
Display Screen
(see next page)
Commit to Xfer After
TD Norm Fail
SHED LOAD
Direction
SHED LOAD
InPhase
SHED LOAD
TD
SHED LOAD
IsoLoadOnSrcFail
SHED LOAD
IsoLoadOnTest17
PHASE ROTATION
MONITOR
Enable
PHASE ROTATION
MONITOR
Reference
IN–PHASE
MONITOR
Enable
inphase monitor time delay ④
failure to sync auto bypass ①
bypass time delay ①
bypass in phase ①
Y–Y primary failure detection enablenoyes or no
Y–Y primary failure sensing time delay1.0 second
Y–Y primary failure retransfer time delay1.0 hour
1.5 second
noyes or no
0second
noyes or no
0to3.0seconds
0.1 sec increments
0to59seconds
1 sec increments
0to9.9seconds
0.1 sec increments
0to23hrs59min.
1 min. increments
CTTS BYPASS/SHED LD
CTTS BYPASS/SHED LD
CTTS BYPASS/SHED LD
IN–PHASE
MONITOR
Time Delay
FailSyncAutoByps
Bypass DT Delay
Bypass InPhase
Y–Y PRI FAIL DETECT
Enable
Y–Y PRI FAIL DETECT
Sense Delay
Y–Y PRI FAIL DETECT
TD E>N Y–Y
① These features appear only on the display for a 4ACTS, 7ACTS, or 7ACTB closed–transition transfer switch.
② These features appear only on the display for a 4ACTS, 7ACTS or 7ACTB closed–transition transfer switch
or a 4ADTS, 7ADTS, or 7ADTB delayed–transition transfer switch.
③ These features do not appear on the display unless both sources have 3 phase sensing enabled.
④ These features appear only on a 4ATS, 7ATS, or 7ATB (open–transition automatic transfer switch).
The controller (CP) Features settings can be displayed and changed from the keypad. Some settings may require a password (if the controller is set up for one).
¡ From any of the Status displays, press the Enter/Save Settings ¿ key to move
below). An overview explanation of each setting is listed below.
7 Features Menus (last menu loops back to first)
Commit to Xfer After TD Normal Failseepage2–1
This display shows the commit to transfer setting. It affects the transfer
sequence as follows:
Ye s — If Normal fails, CP continues transfer sequence to emergency
even if Normal returns before Emergency becomes acceptable.
No — If Normal fails, C P cancels the transfer sequence to emergency
if Normal returns before Emergency becomes acceptable.
Shed Loadseepage2–1
This display shows status of 3 load shed parameters:
Direction — from Emergency or from Normal
InPhase — yes means transfer delayed until sources are in phase
TD — 3 second default time delay
¤
SHED LOAD
Direction:
InPhase:TD:s
SHED LOAD
IsoLoadOnSrcFailyes
IsoLoadOnTest17no
PHASE ROTATION
MONITOR
Enable:
Reference:
IN--PHASE
MONITOR
Enable:
Time Delay:s
Shed Load Optionsseepage2–1
This display appears only for 4ACTS, 4ADTS, 7ACTS, 7ACTB, 7ADTS, or
7ADTB. It determines switch position after the shed load transfer.
IsoLoadOnSrcFail — determines switch position during a source failure.
IsoLoadOnTest17 — deterines switch position during feature 17 activation.
Ye s — Load is not connected to eithersource.(see wiring diagram
No — Load is connected to the opposite source. for feature 17 desc.)
Phase Rotation Monitorseepage2–1
This display shows status of phase rotation monitor and desired reference
phase rotation. It only appears if both sources are set to 3–phase sensing.
Enabled — Ye s means phase rotation is considered as part of the
source acceptability criteria for each source. If the phase rotation of the
source does not match the reference phase rotation, that source is considered
unacceptable. If phase rotation of the two sources is different, the load will
be transferred to the source with the reference phase rotation.
Reference — phase rotation order: ABC or CBA (ABC is default)
In–Phase Monitorseepage2–1
This display appears only for 4ATS, 7ATS or 7ATB. This display shows status
of in–phase monitor and in–phase time delay (1.5 seconds is default setting).
Enabled — Ye s means in–phase transfer is initiated when any of these
conditions are met: Transfer Test (Feature 5) signal, connected source fails,
retransfer to acceptable Normal occurs and Emergency source acceptable.
CTTS Bypass / Shed Load (not shown)see page 2–1
This display shows status of the closed–transition bypass options.
FailSyncAutoBy pass — Ye s means if the fail to sync alarm occurs, the controller
will bypass the closed–transition mode and will make a delayed–transiton
transfer. The load disconnect time is set by the Bypass DT Delay parameter.
Bypass InPhase — Ye s means the inphase monitor is active during load transfer.
Page 11
General Settings
2 --- 8Settings
Y–YPrimaryFailureDetection(not shown)see page 2–1
This display shows status of a special control algorithm which is described in
Application Note 381339–276.
Enable – Ye s means the algorithm is activated to detect Normal primary single
phase failure in Y–Y systems.
Sense Delay — 1 second default time delay.
TD E>N Y–Y — 1 hour default time delay.
Note: This function should only be considered for use where the Normal source
is provided through a Y–Y transformer. This function requires the Normal
source voltage unbalance monitoring to be enabled.
Unless otherwise specified on the order, the controller general settings are set at
the factory to the default values. If a setting must be changed, follow the procedure
on the next page. Some settings may require a password (if the controller is set
up for one).
Any indiscriminate change in these settings may affect the normal
operation of the Automatic Transfer Switch. This change could allow
the load circuits to remain connected to an inadequate source
ParameterDefault SettingAdjustment Range
ENGLISH
FRENCH CDN
ENGLISH EU
languageENGLISH*
serial communications baud rate19.2k
serial communications address10to63
event log enablenoyes or no
print enablenoyes or no
clear lognoyes or no
door–mounted user controls locked
but not the Power Control Center
(this setting on 4000 Series only)
noyes or noKeypad Locked
ENGLISH EU S1–S2
ENGLISH S1–S2*
SPANISH
GERMAN
PORTUGUESE
off, x9600, 9600,
19.2k, Mbus9600,
Mbus19.2k
Display Screen
(see next page)
Menu Language
ENGLISH
SERIAL
COMMUNICATION
Baud Rate
SERIAL
COMMUNICATION
Address
EVENT LOGGING
Enable
EVENT LOGGING
Print Enable
EVENT LOGGING
Clear Log
password1111
4characters
letters or numbers
Change
Password
* Note: If the language setting ENGLISH S1–S2 is selected the usual display words
Normal (N) and Emergency (E) are changed to Source 1 (S1) and Source 2 (S2).
The controller (CP) general setting can be displayed and changed from the keypad.
Some settings may require a password (if the controller is set up for one).
¡ From any of the Status displays, press Enter/Save Settings ¿ key to move to
This display allows the user to enable the event logging feature of the
controller and to clear the event log.
Enable — YES means to start event logging; NO means turn it off.
Print Enable — YES means enables printer option; NO turns it off.
Clear Log — YES means erase the event log; NO means keep it.
Change
Password:
0001
PrintEventLog(not shown)see page 2–1
This display shows the status of the optional printer.
Also see Printer Interface Module instructions 381339---218.
User Controls Locked (on 4000 Series only)
seepage2–1
This display allows the user to lock or unlock the door–mounted user controls.
(not the Power Control Center). YES means locked. NO means unlocked.
Change Passwordseepage2–1
This display allows the user to change the controller password.
Page 13
Engine Exerciser Settings
Unless otherwise specified on the order, the controller engine exerciser settings
are set at the factory to the default values. If a setting must be changed, follow the
procedure on the next page.Some settings may require a password (if the
controllerissetupforone).
Any indiscriminate change in these settings may affect the normal
operation of the Automatic Transfer Switch. This change could allow
the load circuits to remain connected to an inadequate source
2 --- 1 0Settings
ParameterDefault SettingAdjustment Range
monthJAN
day11to31
year *100 to 99
hour10to23
minute10to59
engine exerciser enable
(P1 to P7)
engine exerciser transfer load
(P1 to P7)
engine exerciser start hour
(P1 to P7)
engine exerciser start minute
(P1 to P7)
engine exerciser run week
(P1 to P7)
JAN, FEB, MAR,
APR, MAY, JUN, JUL,
AUG, SEP, OCT ,
NOV, DEC
noyes or no
noyes or no
00to23
00to59
all, alternate,
all
first, second, third,
fourth, or fifth
Display Screen
(see next page)
PRESENT DATE/TIME
Date
PRESENT DATE/TIME
Date
PRESENT DATE/TIME
Date
PRESENT DATE/TIME
Time
PRESENT DATE/TIME
Time
P1 ENGINE EXERCISER
Enable
P1 ENGINE EXERCISER
wLoad
P1 ENGINE EXERCISER
Starth
P1 ENGINE EXERCISER
Startmin
engine exerciser run day
(P1 to P7)
engine exerciser duration hours
(P1 to P7)
engine exerciser duration minutes
(P1 to P7)
SUN
00to23
00to59
SUN, MON, TUE,
WED, THU, FRI, SAT
* For the year 2000, enter 00.
P1 ENGINE EXERCISER
Run TImeh
P1 ENGINE EXERCISER
Run TImemin
Page 14
2 --- 1 1Settings
Engine Exerciser Settings
The controller (CP) engine exerciser setting can be displayed and changed from
the keypad. Some settings may require a password (if the controller is set up for
one).
① From any of the Status displays, press Enter/Save Settings keytomovetothe
①
Settings level of menus.
SETTINGS
Voltage DO PU
Frequency DO PU
②③
④⑤
SETTINGS
Engine Exerciser
➅
PRESENT DATE/TIME
US DST:
Date:
Time:
➆
P1 ENGINE EXERCISER
Enable:wLoad:
Start:h
Run Time:hmin
Set the seven
independent
engine exercise
routines,
if desired.
② Press the right arrow key to move to Setting Time Delays menu.
③ Press the right arrow key again to move to Settings Features menu.
④ Press the right arrow key again to move to Settings General menu.
⑤ Press the right arrow key again to move to Settings Engine Exerciser.
➆ You can press the right arrow key to see the other Engine Exerciser menus
(as shown below). An overview explanation of each setting is listed below.
8 Engine Exerciser Settings Menus
(last menu loops back to first)
Present Date/Timeseepage2–1
This display allows the user to change the controller date and time.
US DST — US Daylight Saving Time.APR – OCT, MAR – NOV, or OFF.
MAR – NOV begins in 2007.
P(1—7) Engine Exerciser(s)seepage2–1
These displays (P1 through P7) allow the user to set the controller’s seven
independent engine exerciser routines. Each routine functions in the same
manner. Six parameters need to be configured for each routine (P1, P2, P3,
P4, P5, P6, P7 — not all have to be used).
Enable — YES enables the routine; NO turns it off.
wLoad — YES transfers load to Emergency; NO = no transfer.
P7 ENGINE EXERCISER
Enable:wLoad:
Start:h
Run Time:hmin
Start — when the routine will start the generator
– time (hour, minute)
– week (all, alternate, 1st, 2nd, 3rd, 4th, or 5th week)
–dayoftheweek(mon,tue,wed,thu,fri,sat,sun)
Run Time — duration (length of time) that the generator will run.
Page 15
View Event Log
¡
2--12Settings
The controller event logging feature can be displayed from the keypad. Some
settings may require a password (if the controller is set up for one).
¡ From any of the Status displays, press Enter/Save Settings key to move to
¢ Press the right arrow " key again to move to Settings Features menu.
£ Press the right arrow " key again to move to Settings General menu.
¤ Press the right arrow " key again to move to Settings Engine Exe rciser.
¥ Press the right arrow " key again to move to View Event Log.
¦ Now press Enter/Save Settings keytomovetotheeventsloggeddisplay.
§You can press the right arrow " key to see the other events logged.
An overview explanation of each setting is listed below.
Logged Events
This display shows the last 99 logged events. Each event display shows the
event number (1 is the most recent, 99 is the oldest), the time and date of the
event, the event type, and the event reason (if applicable).
Event Types
Nine types of events are logged. They are (displayed event & meaning) :
Eng StartThe controller has signaled the engine to start
Xfer N>E The controller has initiated transfer from normal to emergency
Xfer E>N The controller has initiated transfer from emergency to normal
Eng StopThe controller has signaled the engine to stop
EmergAcc The emergency source has become acceptable
EmergNAccThe emergency source has become not acceptable
NormAccThe normal source has become acceptable
NormNAcc The normal source has become not acceptable
XfrAbortThe transfer has been aborted
Event Reasons
Twenty–onereasons for events are logged. They are (displayed r eason & meaning):
LoadShed Load shed requested
NormFailNormal source failureNormOFNormal source over frequency
ManualXfr Manual transferNormPHRNormal source phase rotation
Test 5Test requested (Feature 5)NormVUNBNormal source voltage unbalance
Test 17Test requested (Feature 17)EmergUVEmergency source under voltage
CommSerial communicationsEmergOVEmergency source over voltage
EngExercEngine ExerciserEmergUFEmergency source under frequency
EmergFail Emerg source failureEmergOFEmergency source over frequency
NormUVNormal source under voltageEmergPHREmergency source phase rotation
NormOVNormal source over voltageEmergVUNB Emergency source voltage unbalance
NormUFNormal source under frequencyFeature 6Feature 6 activated
Page 16
2--13Settings
Service — Statistics / Diagnostics
The controller service statistics / diagnostics can be displayed from the keypad.
Some settings may require a password (if the controller is set up for one).
¡ From any of the Status displays, press Enter/Save Settings key to move to
§ Now press Enter/Save Settings keytomovetothefirstService menu.
¨ You can press the right arrow " key to see the other Service menus (as shown
below). An overview explanation of each setting is listed below.
7 Service Menus (last menu loops back to first)
ATS Statistics
This display shows the total number of transfers, the total number of transfers
due to source failures, and the total number of days that the ATS has been energized since the controller has been installed. These values cannot be reset.
Source Statistics
This display shows the total time that the normal and emergency sources have
been acceptable since installation of the controller. These values cannot be
reset.
View Service Data
This display is for service personnel only.
VIEW SERVICE DATA
Addr:
Data:
SERIAL
COMMUNICATION
Loop Test:
CP SOFTWARE
Version:
Date:
Serial Communication
This display allows the user to test the serial communications port of the
controller.To perform the test, the transmit lines of the serial
communications port are connected to the receive lines so that the signals sent
by the controller are also received by the controller. The test is activated by
pressing the Enter/Save Settings key while viewing this display. If the
controller receives the same information that it sent, test is passed, otherwise
it fails.
I/O Status (not shown)
These displays show the status of several of the controller’s input and output
lines.
CP Software
This display shows the version of the loaded software and the date of its
release.
Page 17
Service — Factory Selectable Features
The controller service factory selectable features can be displayed from the
membrane controls. These factory settings should not be changed by the customer
NORMAL OK
¡
(they cannot be changed without entering the factory password).
¡ From the ATS Status display (NORMAL OK), press Enter/Save Settings
button to move down to the Settings level of menus.
¨ Now press Enter/Save Settings button to move down to the first Service
factory selectable feature.
You can press the right arrow " button to see the other Service menus (as shown
below). An overview explanation of each setting is listed below.
8 Service Menus (last menu loops back to first)
ATS Information
This display shows the transfer switch ampere size, whether the switch is a
bypass switch or a non–bypass switch, and any name or description inform–
ation that has been assigned to it through the serial communications port.
Test or Manual Mode Input
This display shows the setting of the Feature 5/6Z input. This input can be
used for either Feature 5 or 6Z. Yes means active; no means not used.
Test Operation — Feature 5
Manual Operation — Feature 6Z
This Feature is not available for automatic operation.
Retransfer Mode Input
This display shows the settings for Features 6B/6C inputs. This input can be used
for either Feature 6B or 6C. Yes means active; no means not used.
TD Bypass — Feature 6B
Manual R e Xfer — Featu re 6C
These Features are typically set to Ye s with the inhibit Feature overridden with
external factory wiring. These Features are not available for customer use.
Xfer to Normal Inhibit and Emergency (not shown)
This display shows whether the Feature 34A input is enabled (yes) or disabled
(no).
Likewise, the next display Xfer to Emergshows whether the Feature 34B input
is enabled (yes) or disabled (no).
Temp Calibr:
ATS Idle Time:ms
CT Parallel TD:ms
Factory Calibration (not shown)
This display is for factory calibration only and should be used by factory
personnel only.
Other
These displays show various parameters that should be accessed by factory
personnel only.
Page 18
3--1Operating the Controls
Status Information
The controller (CP) provides the status of the automatic transfer switch (ATS) and
of both the normal and emergency sources. This information is at the status level
of all screens and no password is required to view them.
Youcan press the right arrow " key to see the status of the Normal Source or press
the left arrow A key to see the status of the Emergency source (the menus loop
back).
EMERG SOURCE
Tip
☞
NORMAL OK
NORMAL SOURCE
ATS Status
The ATS Status is the primary display. It shows the present status of the AT S.
Transfer sequence status and running time delays are shown. For inphase or
closed–transition transfers, phase relation between the sources is also shown.
The A TS Status display can be directly reached from anywhere in the menu
structure by pressing the Esc key three times.
Normal Source Status
The Normal Source Status display shows the rms voltage of each of the phases, the
source frequency in Hz, and the phase rotation. If enabled, the voltage unbalance
will also be displayed.
Emergency Source Status
The Emergency Source Status display shows the rms voltage of each of the phases,
the source frequency in Hz, and the phase rotation. If enabled, the voltage
unbalance will also be displayed.
Source Acceptability
The CP considers a source unacceptable if any of these conditions are true:
SAny phase voltage of the source is less than the voltage dropout setting.
SAny phase voltage is greater than voltage trip setting for more than 3 sec.
SFrequency of the source is less than the frequency dropout setting.
SFrequency is greater than frequency trip setting for more than 3 seconds.
SPhase rotation does not match specified phase rotation (only if enabled).
SThe phase unbalance is greater than the unbalance dropout setting (only if enabled).
The CP considers a source acceptable
SEach phase voltage is greater than the voltage pickup setting.
SEach phase voltage is less than trip voltage setting by more than 2% of nom
SThe frequency of the source is greater than the frequency pickup setting.
SFrequency is less than the frequency trip setting by more than 2% of nom.
SPhase rotation matches the specified phase rotation (only if enabled).
SThe phase unbalance is less than the unbalance pickup setting (only if enabled).
again when all these conditions are true:
Page 19
Display Messages and their Meaning
The following messages (in alphabetical order) can appear on the CP display:
Display MessageMeaning or ExplanationAlso Refer To
3--2Operating the Controls
An error condition has occurred and the controller
ATS LOCKED OUT!
EMERG SOURCE
ENGINE EXERCISE WITH LOAD
ENGINE EXERCISE WITHOUT LOAD
Enter Password:
FAI LURE TO SYNCHRONIZE ALA RM
Load DisconnectedThe load is disconnected (4ADTS,7ADTS,7ADTB)
has locked out all further attempts to transfer the
load. Press the Alarm Reset pushbutton to clear
this message.
The emergency status display shows the
emergency voltages, voltage unbalance
(if enabled), and frequency.
The engine exerciser is running the engine–
generator set with load (the transfer switch
transfers the load to the generator).
The engine exerciser is running the engine–
generator set without load (the transfer switch
does not
A password is required to proceed further in the
change process. Enter the correct password to
continue or press the Esc key to clear this
message.
Thefailuretosynchronizetimedelayhasexpired.
This alarm occurs when the sources fail to
synchronize within the specified time. Press the
Alarm Reset pushbutton to clear this message.
(4ACTS, 7ACTS, 7ACTB)
transfer the load to the generator).
Transfer
Switch
Operator’s
Manual
page 3–1
pages
2–10, 2–11
pages
2–10, 2–11
pages
2–1, 2–8
pages
4–4, 4–5
pages
4–6, 4–7
Load on EmergThe load is connected to the emergency source.
Load on NormalThe load is connected to the normal source.
LOAD SHED FROM EMERG
LOAD SHED FROM NORMAL
NORMAL FAILEDThe normal source is not acceptable.page 3–1
NORMAL OKThe normal source is accepted.page 3–1
NORMAL SOURCE
POWER–UP INHIBITstays on
TD Emerg>Normal:
TD Engine Cooldown:
TD Load Disconnect:
The load shed signal is active and the load has
been shed from the emergency source.
The load shed signal is active and the load has
been shed from the normal source.
The normal status display shows the normal
source voltages, voltage unbalance (if enabled),
and frequency.
Thecontrollerhaspoweredupandhas
recognized an error condition.
The emergency to normal load transfer time delay
(Feature 3A) is running. The amount of time
remaining is shown.
The engine–generator set unloaded cooldown
time delay (Feature 2E) is running. The amount
of time remaining is shown.
The load disconnect time delay is running.
The amount of time remaining is shown.
(4ADTS, 7ADTS, 7ADTB)
page 2–6
page 2–6
page 3–1
Contact
ASI
page 2–4
page 2–4
pages
4–6, 4–7
continued on next page
Page 20
3--3Operating the Controls
Display Messages and their Meaning (continued)
The following messages (in alphabetical order) can appear on the CP display:
Display MessageMeaning or ExplanationAlso Refer To
Thenormalsourcefailuretimedelay(Feature1C)
TD Normal Fail:
TD Normal>Emerg:
TD Post Transfer
TD Pre Transfer
is running. The amount of time remaining is
shown.
The normal to emergency load transfer time delay
(Feature 2B) is running. The amount of time
remaining is shown.
The post–transfer time delay (Feature 31M or
31N) is running. The amount of time remaining is
shown.
The pre–transfer time delay (Feature 31F or 31G)
is running. The amount of time remaining is
shown.
page 2–4
page 2–4
page 2–4
page 2–4
TEST MODE SERIAL COMM
TEST MODE TEST CIRCUIT 5Test circuit Feature 5 is a ctive (Transfer Test).
TEST MODE TEST CIRCUIT 17Test circuit Feature 17 is active (remote test).page 2–6
Transfer to Emerg I nhibitedLoad transfer to emergency is inhibited.
Transfer to Normal InhibitedLoad transfer to normal source is inhibited.
Waiting for Emerg Acceptable
Waiting for In–Phase
Waiting for In–Sync
A test has been initiated via the serial commu-
nications port.
The controller is waiting for the emergency source
to become acceptable so that it can continue in
the transfer sequence.
The controller is waiting for the sources to come
in phase so that it can make an in phase load
transfer. The phase angle and frequency
difference are also displayed. This message will
be displayed until the s ources come in phase.
(4ATS, 7ATS, 7ATB)
The controller is waiting for the sources to come
into synchronism so that it can make a
closed–transition load transfer. The three
parameters required for synchronization (phase
angle, frequency difference, and voltage
difference) are also displayed. If the sources do
not have the same rotation, this will also be
displayed. (4ACTS, 7ACTS, 7ACTB)
page 2–13
Transfer
Switch
Operator’s
Manual
page 3–1
pages
4–1, 4–2
pages
4–4, 4–5
WRONG P ASSWORD !!!An incorrect password has been entered.page 2–1
The extended parallel time delay has expired,
which indicates that the sources have been
XTD P ARALLEL ALARM
PA RM CHCKSUM ERROR
UNKNOWN ERRORSystem error.
paralleled for longer than the specified extended
parallel time. Press the Alarm Reset pushbutton
to clear this message. (4ACTS, 7ACTS, 7ACTB)
An internal memory error has been detected. On
occurance of this error message, memory is
cleared and all parameters need to be reset.
pages
4–4, 4–5
Contact
ASI
Contact
ASI
Page 21
4--1Description of Operation
Open–Transition (2–position) Automatic Transfer (4ATS,7ATS,7ATB)
Load Transfer To Emergency
NORMAL FAILED
TEST MODE
TEST CIRCUIT 5
Waiting for Emerg
Acceptable
Feature 31F
NORMAL FAILED
TD PreTransfer
__ min, __ s
NORMAL FAILED
Load on Emerg
NORMAL FAILED
The sequence for load transfer to the emergency source begins automatically when the
controller detects a normal source failure or a transfer test signal.
Normal Source Failure. The Normal source is considered unacceptable when any one
of six voltage, frequency, or phase rotation conditions occur (see page 3–1).
Transfer Test Signal. Te st transfer signal can be from the Tr a n sf e r C on t ro l switch
(Feature 5), the engine–generator exerciser clock (Feature 11C), or via the serial port
(Feature 72A). When using the Tr a n sf e r C o nt r ol switch,itmustbeheld
in the TransferTest
position until the emergency source becomes available (within 15 seconds).
The controller begins the load transfer sequence by de–energizing the SE relay and
starting the Feature 1C time delay. Feature 1C time delay on engine starting prevents
nuisance starting of the engine–generator set and load transfer to emergency due to
momentary failures of the normal source. If the normal source is restored (voltage returns
above the dropout point) while Feature 1C time delay is running, the SE relay is
re–energized and the transfer sequence is terminated. (For transfer test the Feature 1C
time delay is bypassed.)
Engine Start Signal. When the Feature 1C time delay ends, the controller de–energizes
the NR relay which signals the engine–generator to start. The cont roller monitors the
emergency source, waiting for it to become acceptable. Usually about 10 seconds elapse
from dropout of the NR relay to acceptance of the emergency source. This interval occurs
because the engine–generator must crank, start, and run up to nominal pickup points. If
the emergency source is available immediately, the controller will accept it as soon as the
NR relay drops out.
When the emergency source becomes acceptable, the controller starts the Feature 2B time
delay on transfer to emergency (if desired). Feature 2B time delay allows the emergency
sourceto stabilize before load transfer. If the emergencysourcefails whileFeature2B time
delay is running, the controller again waits for the emergency source to become acceptable
again and restarts Feature 2B.
At the conclusionof the Feature 2B time delay, the controller is ready to transfer the load
to emergency. If enabled, Feature 31F time delay will run prior to transfer and the Feature
31 output will be active while the time delay runs. Also, if Feature 27 inphase monitor
control (for motor loads) is enabled, the controller will inhibit transfer until the sources
are in phase.
Load Transfer. To transfer the load to the emergency source the controllerenergizes ER
relay. The transfer switch TS coil energizes, and all transfer switch contacts (mains,
controls, auxiliaries) reverse position. Transfer switch is now supplying the load from
emergency source.
If enabled, Feature 31M time delay will run after the transfer and the Feature 31
output will be active while the time delay runs.
TD PostTransfer
__ min, __ s
Feature 31M
Page 22
4--2 Description of Operation
Open–Transition (2–position) Automatic Transfer Switches continued
Load Retransfer To Normal
NORMAL OK
Load on Emerg
NORMAL OK
TD Emerg>Normal
__min __s
NORMAL OK
TD Engine Cooldown
__min __s
Thesequenceforloadretransfertothenormalsourcebeginsautomaticallywhenthe
controller detects a restored normal source or a cancelled transfer test signal.
Normal Source Restoratio n. The Normal source is considered acceptable again when
all
six voltage, frequency, or phase rotation conditions occur (see page 3–1).
Cancel Transfer Test. Removal of the test transfer signal can be by the Tr an s fe r C o n t ro l
switch (Feature 5), engine–generator exerciser clock (Feature 11C), or via serial port
(Feature 72A). When using the Tra ns f er C o nt r ol switch, it must be released
from the
Transfer Test position.
The controller begins the load retransfer sequence by starting the Feature 3A time delay.
Feature 3A time delay on retransfer to normal allows the normal source to stabilize. If the
normal source fails while the Feature 3A time delay is running, the controller waits for the
normal source again to become acceptable and restarts the Feature 3A time delay. If the
emergency source fails while Feature 3A is running, the controller bypasses the time delay
for immediately load retransfer. To bypass Feature 3A time delay, turn the Tr a n s fe rControl switch to the Retransfer Delay Bypass position.
At the conclusionof the Feature 3A time delay, the controller is ready to transfer the load
to normal. If Feature 27 inphase monitor control is enabled, the controller will inhibit
transfer until the sources are in phase.
Load Retransfer. To retransfe r the load to the normal source the controller de–energizes
ER relay and energizes SE relay. The transfer switch TS coil energizes, and all transfer
switch contacts (mains, controls, auxiliaries) reverse position. The transfer switch is now
supplying the load from the normal source again
Engine Cooldown & Stop. After load retransfer to the normal source, the controller
starts Feature 2E time delay. Feature 2E time delay provides an unloaded cooldown
running period for the engine–generator. At t he end of the time delay, the controller
energizes the NR relay and the engine–generator is signalled to shutdown.
NORMAL OK
Load on Normal
Page 23
Closed–Transition Automatic Transfer (4ACTS, 7ACTS, 7ACTB)
The 4ACTS, 7ACTS, and 7ACTB provides load transfer in either closed (make–before–break) or open (break–before–make) transition modes depending upon the condition
of the two power sources. Control logic automatically determines whether the load trans-
NORMAL FAILED
TEST MODE
TEST CIRCUIT 5
Load on Emerg
fer should be open or closed transition. If both
transfer test or when retransferring back to Normal, closed–transition transfer occurs
without interrupting the electrical loads. If either source is not
mal fails, open–transition load transfer occurs in the break–before–make mode.
Open–Transition Load Transfer to Emergency Source
due to Normal Source Failure
The sequence for open–transition load transfer to the emergency source begins
automatically when the controller detects an unacceptable normal source. The Normal
source is considered unacceptable when any one of six voltage, frequency, or phase
rotation abnormal conditions occur (see page 3–1).
Normal Source Failure. An under voltage condition on any phase of the normal source
means that the voltage has fallen below the preset dropout point.
The controller begins the load transfer sequence by de–energizing the SE and SE2 relays
and starting the Feature 1C time delay. Feature 1C time delay on engine starting prevents
nuisance starting of the engine–generator set and load transfer to emergency due to
momentary failures of the normal source. If the normal source is restored (voltage returns
above the dropout point) while Feature 1C time delay is running, the SE and SE2 relays
are re–energized and the transfer sequence is terminated. (For transfer test the Feature
1C time delay is bypassed.)
Engine Start Signal. When the Feature 1C time delay ends, the controller de–energizes
the NR relay which signals the engine–generator to start. The cont roller monitors the
emergency source, waiting for it to become acceptable. Both
reach preset pickup points before the emergency source is accepted. Usually about 10
seconds elapse from dropout of the NR relay to acceptance of the emergency source. This
interval occurs because the engine–generator must crank, start, and run up to nominal
pickup points. If the emergency source is available immediately, the controller will accept
it as soon as the NR relay drops out.
When the emergency source becomes acceptable, the controller starts the Feature 2B time
delay on transfer to emergency (if desired). If the emergency source fails while Feature 2B
time delay is running, the controller again waits for the emergency source to become
acceptable again and restarts Feature 2B.
At the conclusionof the Feature 2B time delay, the controller is ready to transfer the load
to emergency. If enabled, Feature 31F time delay will run prior to transferand the Feature
31F output will be active while the time delay runs.
Load Transfer. To transfer the load to the emergency source the controller energizes the
ER relay. The transfer switch CN coil energizes, and all CN transfer switch contacts
(mains, controls, auxiliaries) reverse position to disconnect the Normal source. Then the
controller energizes the ER2 relay. The transfer switch CE coil energizes, and all CE
transfer switch contacts (mains, controls, auxiliaries) reverse position to connect the
Emergency source. The transfer switch is now supplying the load from emergency source.
If enabled, Feature 31M time delay will run after the transfer and the Feature 31M output
will be active while the time delay runs.
sources are acceptable, such as during a
present, such as when nor-
voltage and frequency must
4--3Description of Operation
Page 24
4--4 Description of Operation
Closed–Transition Automatic Transfer Switches continued
Closed–Transition Load Transfer to Emergency Source
due to Transfer Test
The sequence for closed–transition load transfer to the emergency source begins
automatically when the controller detects a transfer test signal.
Transfer Test Signal. Te st transfer signal can be from the Tr a n sf e r C on t ro l switch
TEST MODE
TEST CIRCUIT 5
Waiting for Emerg
Acceptable
TEST MODE
TEST CIRCUIT 5
Load on Emerg
(Feature 5), the engine–generator exerciser clock (Feature 11C), or via the serial port
(Feature 72A). When using the Tr a n sf e r C o nt r ol switch,itmustbeheld
position until the emergency source becomes available (within 15 seconds).
The controller begins the load tra nsfer sequence by de–energizing the SE, SE2, and NR
relays. Feature 1C engine starting time delay is bypassed during transfer test.
Engine Start Signal. When the NR relay de–energizes it signals the engine–generator
to start.The controller monitors the emergency source, waiting for it to become
acceptable. Both
emergency source is accepted. Usually about 10 seconds elapse from dropout of the NR
relay to acceptance of the emergency source. This interval occurs because the
engine–generatormust crank, start, and run up to nominal pickup points. If the emergency
source is available immediately, the controller will accept it as soon as the NR relay drops
out.
When the emergency source becomes acceptable, the controller starts the Feature 2B time
delay on transfer to emergency (if desired). If the emergency source fails while Feature 2B
time delay is running, the controller again waits for the emergency source to become
acceptable again and restarts Feature 2B.
At the conclusion of the Feature 2B time delay, the controller starts the synchronization
time delay which allows both sources to stabilize. After the synchronization time delay,
the controller starts the in–sync monitor. Three criteria must be met for the sources to be
consideredin–sync. The phase difference between thesources mustbe less than 5degrees,
thefrequencydifferencemustbelessthan0.2Hz,andthevoltagedifferencemustbeless
than 5%. These parameters are displayed. The controller waits for the sources to become
in–sync. At the same time, the failure to sync time delay is running. If the failure to sync
time exceeds the user selected time, the failure to sync output is activated and remains
active until it is reset via the alarm reset. The controller continues the transfer sequence
even after the failure to synchronize alarm becomes active.
Whenthe sourcesbecome in–sync the controller is ready to transfer the load to emergency.
Load Transfer. To transfer the load to the emergency source the controller energizes the
ER2 relay. The transfer switch CE coil energizes, and all CE transfer switch contacts
(mains, controls, auxiliaries) reverse position. The load is connected to both the Normal
and Emergency sources. The extended parallel time delay is started and the controller
energizes the ER relay. The transfer switch CN coil energizes, and all CN transfer swi tch
contacts (mains, control, auxiliaries) reverse position to disconnect the Normal source.
The load is now only connected to the Emergency source. If the sources are paralleled
longerthan the extended paralleltime setting the controlleractivates an extended parallel
output. It also deenergizes the ER and ER2 relays, energizes the SE and SE2 relays, and
it locks out any further transfer operations. This lock–out condition is reset via the alarm
reset.
voltage and frequency must reach preset pickup points before the
in the TransferTest
Page 25
Closed–Transition Automatic Transfer Switches continued
Closed–Transition Load Retransfer To Normal
Thesequenceforloadretransfertothenormalsourcebeginsautomaticallywhenthe
controller detects a restored normal source or a cancelled transfer test signal.
NORMAL OK
Load on Emerg
NORMAL OK
TD Emerg>Normal
__min __s
NORMAL OK
TD Engine Cooldown
__min __s
NORMAL OK
Load on Normal
Normal Source Restoratio n. The Normal source is considered acceptable again when
all
six voltage, frequency, or phase rotation conditions occur (see page 3–1).
Cancel Transfer Test. Removal of the test transfer signal can be by the Tr an s fe r C o n t ro l
switch (Feature 5), engine–generator exerciser clock (Feature 11C), or via serial port
(Feature 72A). When using the Tra ns f er C o nt r ol switch, it must be released
Transfer Test position.
The controller begins the load retransfer sequence by starting the Feature 3A time delay.
Feature 3A time delay on retransfer to normal allows the normal source to stabilize. If the
normal source fails while the Feature 3A time delay is running, the controller waits for the
normal source again to become acceptable and restarts the Feature 3A time delay. If the
emergency source fails during while Feature 3A is running, the controller bypasses the
time delay for immediately load retransfer. To bypass Feature 3A time delay, turn the
Tra ns f er Co nt r ol switch to the Retransfer Delay Bypass position.
At the conclusion of the Feature 3A time delay, the controller starts the synchronization
time delay which allowsboth sources to stabilize. After the synchronizationtime delay the
controller starts the in–sync monitor and the failure to sync time delay. When the sources
become in–sync the controller i s ready to transfer the load to normal.
Load Retransfer. To retransfer the load to the normal source the controller de–energize
the ER and ER1 relays and energizes the SE relay. The transfer switch CN coil energizes,
and all CN transfer switch contacts (mains, controls, auxiliaries) reverse position to
connect the Normal source. The load is now connected to both sources. The extended
parallel time delay is started and the SE2 relay is energized. The transfer switch CE coil
energizes, and all CE transfer switch contacts (mains, controls, auxiliaries) reverse
position to disconnect the Emergencysource. The transfer switch i s now supplying the load
from the normal source again. If the sources are paralleled longer than the extended
parallel time setting the controller activates an extended parallel output. It also
deenergizes the SE and SE2 relays, energizes the ER and ER2 relays, and it locks out any
further transfer operations. This lock–out condition is reset via the alarm reset.
Engine Cooldown & Stop. After load retransfer to the normal source, the controller
starts Feature 2E time delay. Feature 2E time delay provides an unloaded cooldown
running period for the engine–generator. At t he end of the time delay, the controller
energizes the NR relay and the engine–generator is signalled to shutdown.
4--5Description of Operation
from the
Bypass Closed–Transition Load Transfer
A pendi ng closed–transiti on load transfer can be bypassed by using the Closed Transi tion
Bypass switch.Depending upon the configuration of the controller, bypassing the
closed–transition load transfer sequence will result in either an open or delayed–
transition transfer.
Page 26
4--6Description of Operation
Delayed–Transition Automatic Transfer (4ADTS, 7ADTS, 7ADTB)
Load Transfer To Emergency
NORMAL FAILED
TEST MODE
TEST CIRCUIT 5
Waiting for Emerg
Acceptable
TEST MODE
TEST CIRCUIT 5
TD Load Disconnect
__min __s
TEST MODE
TEST CIRCUIT 5
Load on Emerg
The sequence for load transfer to the emergency source begins automatically when the
controller detects a normal source failure or a transfer test signal.
Normal Source Failure. The Normal source is considered unacceptable when any one
of six voltage, frequency, or phase rotation conditions occur (see page 3–1).
Transfer Test Signal. Te st transfer signal can be from the Tr a n sf e r C on t ro l switch
(Feature 5), the engine–generator exerciser clock (Feature 11C), or via the serial port
(Feature 72A). When using the Tr a n sf e r C o nt r ol switch,itmustbeheld
in the TransferTest
position until the emergency source becomes available (within 15 seconds).
The controller begins the load transfer sequence by de–energizing the SE and SE2 relays
and starting the Feature 1C time delay. Feature 1C time delay on engine starting prevents
nuisance starting of the engine–generator set and load transfer to emergency due to
momentary failures of the normal source. If the normal source is restored (voltage returns
above the dropout point) while Feature 1C time delay is running, the SE and SE2 relays
are re–energized and the transfer sequence is terminated. (For transfer test the Feature
1C time delay is bypassed.)
Engine Start Signal. When the Feature 1C time delay ends, the controller de–energizes
the NR relay which signals the engine–generator to start. The cont roller monitors the
emergency source, waiting for it to become acceptable. Both
voltage and frequency must
reach preset pickup points before the emergency source is accepted. Usually about 10
seconds elapse from dropout of the NR relay to acceptance of the emergency source. This
interval occurs because the engine–generator must crank, start, and run up to nominal
pickup points. If the emergency source is available immediately, the controller will accept
it as soon as the NR relay drops out.
When the emergency source becomes acceptable, the controller starts the Feature 2B time
delay on transfer to emergency (if desired). Feature 2B time delay allows the emergency
sourceto stabilize before load transfer. If the emergencysourcefails whileFeature2B time
delay is running, the controller again waits for the emergency source to become acceptable
again and restarts Feature 2B.
At the conclusionof the Feature 2B time delay, the controller is ready to transfer the load
to emergency.
Load Transfer. To transfer the load to the emergency source in a delayed–transition
mode the controller energizes ER relay first. The transfer switch CN coil energizes and
opens the CN transfer switch contacts. The load is disconnected from both sources. The
load disconnect time delay starts. When this time delay ends, the controller energizes the
ER relay. The transfer switch CE coil energizes and closes the CE transfer switch main
contacts. The transfer switch is now supplying the load from emergency source.
Page 27
Delayed–Transition Automatic Transfer Switches continued
Load Retransfer To Normal
4--7Description of Operation
NORMAL OK
Load on Emerg
NORMAL OK
TD Emerg>Normal
__min __s
TEST MODE
TEST CIRCUIT 5
TD Load Disconnect
__min __s
NORMAL OK
TD Engine Cooldown
__min __s
Thesequenceforloadretransfertothenormalsourcebeginsautomaticallywhenthe
controller detects a restored normal source or a cancelled transfer test signal.
Normal Source Restoratio n. The Normal source is considered acceptable again when
all
six voltage, frequency, or phase rotation conditions occur (see page 3–1).
Cancel Transfer Test. Removal of the test transfer signal can be by the Tr an s fe r C o n t ro l
switch (Feature 5), engine–generator exerciser clock (Feature 11C), or via serial port
(Feature 72A). When using the Tra ns f er C o nt r ol switch, it must be released
from the
Transfer Test position.
The controller begins the load retransfer sequence by starting the Feature 3A time delay.
Feature 3A time delay on retransfer to normal allows the normal source to stabilize. If the
normal source fails while the Feature 3A time delay is running, the controller waits for the
normal source again to become acceptable and restarts the Feature 3A time delay. If the
emergency source fails during while Feature 3A is running, the controller bypasses the
time de lay for immediately load retransfer. To bypass Feature 3A time delay , turn the
Tra ns f er Co nt r ol switch to the Retransfer Delay Bypass position
At the conclusionof the Feature 3A time delay, the controller is ready to transfer the load
to normal.
Load Retransfer. To retransfer the load to the normal source in a delayed–transition
mode the controller de–energizes the ERand ER2 relaysand energizesthe SE2 relay. The
transfer switch CE coil energizes and opens the CE transfer switch main contacts. The
load is disconnected from both sources. The load disconnect time delay starts. When this
time delay ends the controller energizes the ER relay. The transfer switch CN coil
energizes and closes the CN transfer switch main contacts. The transfer switch is now
supplying the load from the normal source again
Engine Cooldown & Stop. After load retransfer to the normal source, the controller
starts Feature 2E time delay. Feature 2E time delay provides an unloaded cooldown
running period for the engine–generator. At t he end of the time delay, the controller
energizes the NR relay and the engine–generator is signalled to shutdown.
NORMAL OK
Load on Normal
Page 28
A --- 1Appendix
Controller Cover Removal
Hazardous voltage capable of causing shock,
burns, or death is connected to controller.
Deenergize all power before removing cover.
NOTICE
ATTENTION
Observe precautions for
handing electrostatic
sensitive devices.
Touch ground first !
Electrostatic
sensitive device.
The Group 5 controller (CP) is used for sensing, timing,
and control functions with 4000 & 7000 Series Automatic
Transfer Switches. This Appendix shows the controller
DIP switch actuator settings and jumper block settings
for input voltage, frequency, phases, and type of transfer
switch used (open, closed, delayed transition). These
controls should only be used by trained technicians from
ASCO Services, Inc. (ASI 1–800–800–2726).
DIP switch actuators see page A–2
Voltage jumper blocks see page A–4
base with circuit
boards & membrane
controls
press latches
(both sides)
cover with pocket
for manual & drawings
Figure A–1. Cover release latches.
Any indiscriminate change in DIP switch and jumper block set-
tings may damage the controller and/or cause an inoperative ATS.
Risk of explosion if battery is replaced by an incorrect type.
Dispose of used batteries according to local ordinances.
Page 29
A --- 2Appendix
i
tch
DIP Switch Actuators
DIP switch
(10 actuators)
right side of
controller
The DIP switch in the Group 5 controller is located on
the right side through a opening in the base.The
following tables show what each actuator does.
Transfe r Swit ch Type
DIP switch actuators 1 and 2 select the type of transfer
switch used with the controller (open–transition,
closed–transition, or delayed–transition). See Table A.
TableA. Transferswitchtype—DIPactuators1&2.
DIP
switch
actuator
1
2
* For open–transition, both actuators 1 & 2 must be
in the same position (either both right or both left).
open
transition
or *
closed
transition
delayed-
transition
DIP
sw
actuator
3
4
5
6
To avoid permanently damaging the Group 5
controller and/or disabling it, be certain that the
setting matches the transfer switch type.
Nominal Source Voltage Selection
DIP switch actuators 3, 4, 5, and 6 select the input voltage to the controller. See Table B.
To avoid permanently damaging to the Group 5
controller, be certain that the voltage setting
matches the transfer switch system voltage.
Figure A–2. Location of DIP switch.
Table B. Nominal Input Voltage — DIP actuators 3, 4, 5, & 6.
Input Voltage to Controller
115120208220230240277380400415440460480550575600
Page 30
A --- 3Appendix
Frequency of Sources
DIPswitchactuator7selectseither50or60Hzsource
frequency. See Table C.
TableC. SourceFrequency—DIPactuator7.
DIP
switch
actuator
7
50 Hz60 Hz
Phases of Normal & Emergency Sources
DIP switch actuators 8 and 9 select either 1 phase or 3
phase for the Normal and Emergency sources. See
Ta b l e s D a n d E .
Table D. Normal Source Phases — DIP actuator 8.
DIP
switch
actuator
8
Table E. Emergency S. Phases — DIP actuator 9.
DIP
switch
actuator
9
1Phase3Phase
1Phase3Phase
Data Input Lock
The Group 5 controller has an external input for a dry
contact that, if closed, prevents setting changes from
the keypad. DIP switch actuator 10 selects either yes
or no for the external input (such as a key switch).
Placing DIP switch actuator 10 in the Ye s position
enables the controller to respond to the external input.
See Table F.
Lost or Forgotten Password
Moving DIP switch actuator 10 to the Ye s position will
allow a new password to be input (as long as the
external input is open). Once the new password has
been entered, return DIP switch actuator 10 to the No
position. See Table F.
Table F. Lock Input — DIP actuator 10.
DIP
switch
actuator
10
YesNo
Page 31
A --- 4Appendix
Voltage Jumper Blocks
To avoid permanently damaging the Group 5
controller, be certain that the voltage setting
matches the transfer switch sy stem voltage.
Eight jumper blocks on the Group 5 controller are
arranged in one of two patterns for the power supply to
meet the requirements of the 16 different voltage
inputs (shownin Table B on page A–2). These jumpers
are located on the front right side near the ribbon
cable. See Figures A–3 and A–4.
Note: Also see page A–2 for
Nominal Source Voltage Selection
DIP switch actuator settings.
jumper blocks
(see Figure A–4)
Figure A–3. Location of jumper blocks.
Nominal voltageNominal voltage
115 — 277 V380 — 600 V