Asco 200 Series User manual

381333–234 E
50 Hanover Road, Florham Park, New Jersey 07932–1591 USA
For sales or service call 1 800 800–2726 (ASCO) www.ascopower.com
Operator’s
Manual
Series 200
Automatic Transfer Switching Equipment
D–design 30 through 230 amperes
DANGER is used in this manual to warn of a
hazard situation which, if not avoided, will result
in death or serious injury.
WARNING is used in this manual to warn of a
hazardous situation which, if not avoided, could
result in death or serious injury.
CAUTION is used in this manual to warn of a
hazardous situation which, if not avoided, could
result in minor or moderate injury.
Note: Refer to the outline and wiring drawings
provided with your Series 200 ATSE for all
installation and connection details and accessories.
Nameplate / rating Label
The Series 200 Automatic Transfer Switching Equipment
(ATSE) contains a nameplate / rating label which includes
data for that specific ATSE. It defines the loads and fault
circuit withstand/closing ratings. Refer to the labels on the
Transfer Switching device for specific values and use the
ATSE only within their limits.
An experienced licensed electrician should install the
ATSE.
Do not exceed the values on the rating label.
Exceeding the rating can cause person injury or
serious equipment damage.
TABLE OF CONTENTS
section
INSTALLATION 1.........................
SEQUENCE OF OPERATION 2............
TESTING & SERVICE 3...................
ADJUSTMENTS 4........................
CONTROL FEATURES 5..................
INDEX back of manual....................
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A typical Catalog Number is shown below with its elements explained:
Catalog Number Identification
Typical D–design Series 200 ATS catalog no. for a solid neutral, 3 pole, 100 amp, 400 V, open type:
200 A 3 100 J 5X
Phase Poles
Neutral
A–solid
C– overlapping
Amperes Voltage Controller
B– switching 5X –if
accessories
ordered
5–standard
3–threeØ
2–singleØ
D220
C208
E230
K415
M460
J400
L440
N480
G277
F240
H380
30
blank – none
70
design
prefix
letter
D
100
150
200 *
230 *
* 200 & 230 A are limited to 480 volts
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SECTION 1 INSTALLATION
1--1
The ASCO Series 200 automatic transfer switching
equipment (ATSE) consists of a transfer switching device,
monitoring and transfer control device (controller), and
membrane controls (for door mounting). The ATSE is
factory tested. Installation requires mounting the devices
into an appropriate size enclosure and connection of
power conductors, engine start signal wires, and auxiliary
circuits.
Mounting
The Outline and Mounting Diagram furnished with the
ATSE shows all mounting details and instructions.
NOTICE
Protect the automatic transfer switching
equipment from construction grit and metal chips
to prevent malfunction or shortened life of the
transfer switching device.
Mount the transfer switch vertically in the back of the
enclosure as shown on the Outline and Mounting
Diagram provided. Level all mounting points of the
rigid supporting structure by using flat washers behind
the holes to avoid forced distortion of the transfer
switch.
Mount the membrane controls and the controller on the
inside of the enclosure door as shown on the Outline
and Mounting Diagram provided. The membrane
controls must be accessible through a cutout in the
door. Connect the membrane controls to the right side
of the controller with the ribbon cable provided. Then
connect the transfer switching device harness plugs to
the left side of the controller. See Figures 1–1 and 1–2.
An add-on rail is provided for some optional accesso-
ries. If provided, mounted it below the controller. Then
make the connections shown on the Wiring Diagram.
Grounding
Grounding (earthing) is accomplished by mounting the
automatic transfer switching equipment in a metal
enclosure. Connect the control panel grounding wire
(lower left side) to equipment (enclosure or clean earth)
ground. This wire can be connected to the controller’s
lower left mounting stud. Because the controller is
mounted on a door, a conductive strap must be used
between the enclosure and the door. This connection
provides proper grounding which does not rely upon the
door hinges. See Figure 1–3.
membrane
controls
ribbon
cable
controller
gasket
cut out in
enclosure
door
enclosure
door
controller
must be within a
steel enclosure
Figure 1-1. Membrane controls and controller mount-
ing on inside of enclosure door. Refer to
Outline & Mounting Diagram for mounting hardware.
Figure 1-2. Membrane controls with gasket
suitable for IP65 enclosure.
ribbon cable
to membrane
controls
ground
wire
mounting
stud
2 plugs for
transfer
switching
device
harness
connections
for control
features &
options
Figure 1-3. Controller grounding (clean earth)
wire and other connections.
NOTICE
The controller must be grounded for proper
operation.
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INSTALLATION (continued)
1--2
De–energize the conductors before making
any line or auxiliary circuitry connections.
Be sure that Normal and Emergency line
connections are in proper phase rotation.
Place engine generator starting control in the
OFF position. Make sure engine generator is not
in operation.
Power connections
AWiring Diagram is furnished with the Series 200
ATSE. All wiring must be made in accordance with the
local codes.
Do not run cables in front of the transfer switching
device. Conductors can be bundled on the right side of
the transfer switching device. Maintain proper electrical
clearance between the live metal parts and grounded
metal: 13 mm minimum.
It is not necessary to remove the barriers from the
transfer switching device to install the conductors. If
you do remove them, however, be sure to reinstall the
barriers carefully.
Connect main source and load conductors to clearly
marked power terminals on the transfer switching
device. Be careful when stripping insulation from the
conductors; avoid nicking or ringing the conductor.
Remove surface oxides from conductors by cleaning
with a wire brush. Follow conductor manufacturer’s
instructions when aluminum conductor is used. Apply
joint compound to conductor, then carefully wipe away
excess compound. Tighten the terminals to the torque
specified on the label on the transfer switching device.
Three conductor spacers are included with 150, 200,
and 230 ampere transfer switching devices. When
installing power conductors, run them through the
conductor spacers as shown in Figure 1–4. Position the
spacers within 38 mm of the power terminals.
NOTICE
Three conductor spacers must be located as
shown for 150, 200, and 230 ampere transfer
switching devices.
conductor spacer
conductor spacers
38 mm approximate
Figure 1-4. Required conductor spacers for
150, 200, & 230 amp transfer switching devices.
Engine Starting Contacts
The engine control contact connections (if used) are
located on the transfer switching device. Connect signal
wires to appropriate terminals as specified in Table A
and shown in Figure 1–5.
Table A. Engine start connections
When normal
source fails
Te r m i n a l s o n
transfer switching device
contact closes TB1 and TB2
contact opens TB1 and TB3
TB 1
TB 2
TB 3
ENGINE STARTING CONTACTS
( SHOWN DE–ENERGIZED )
TOP
STUD
MIDDLE
STUD
BOTTOM
STUD
1
2
3
TS
NR
NR
Figure 1-5. Engine starting contact label and
location on left side of transfer switching device.
Interconnecting harness
Connect the plug–in harness (two plugs) from the
transfer switching device to left side of the controller, if
not already connected.
Auxiliary Circuits
Connect auxiliary circuit wires (if necessary) to
appropriate terminals by referring to the Wiring
Diagram.
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INSTALLATION (continued)
1--3
Functional Test
The Functional Test consists of three checks: manual
operation, voltage checks, and electrical operation.
NOTICE
Do these checks in the order presented to avoid
damaging the automatic transfer switching
equipment.
Read all instructions on the Wiring Diagrams and labels
affixed to the ATS. Note the control features that are
provided and review their operation before proceeding.
1 – Manual Operation
A detachable manual operator handle is provided on the
Transfer Switching device for maintenance purposes only.
Manual operation of the transfer switching device must
be checked before it is operated electrically.
Do not manually operate the transfer switching
device until both power sources are
disconnected: open both circuit breakers.
1. After deenergizing both power sources, open the
enclosure door. Locateandthemaintenance
handle on the left side of the transfer switching
device. See Figure 1–6.
2. Grasp the attached maintenance handle and turn it
with thumb and fingers as shown to manually
operate it. The maintenance handle turns the
opposite direction of the weight. Turn it up or down
as shown to manually operate the transfer switching
device. It should operate smoothly without any
binding. If it does not, check for shipping damage
or construction debris.
3. Return the transfer switching device to the N
(normal) position.
Now continue to 2–VoltageCheckson next page.
maintenance
handle
With ALL POWER OFF grasp
maintenance handle and turn it
quickly with your thumb and fingers.
weight marked N(normal)
and E(emergency)
floating
weight
weight
Position of the transfer switch is indicated here
Figure 1-6. Maintenance handle and positions.
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INSTALLATION (continued)
1--4
observe these lights
Figure 1–7. Standard controls and indicators.
2–VoltageChecks
First check nameplate on transfer switching device;
rated voltage must be the same as normal and
emergency line voltages.
Use extreme caution when using a meter to
measure voltages in the following steps.
Do not touch power terminals; shock, burns, or
death could result !
Perform steps 1 through 6 at the right. Observe the status
lights. See Figure 1–7.
OBlack circle means light is on.
PWhite circle means light is off.
* If necessary, adjust voltage regulator on the generator
according to the manufacturer’s recommendations. The
Automatic Transfer Switching Equipment will respond
only to the rated voltage specified on the Transfer
Switching device nameplate.
Also see page 4–1 for the HI–LOW voltage adjust
setting in the controller. The LOW setting shifts all
voltage settings down 4.2%; for example, 240 V to 230
V.
1
Close the normal source circuit
breaker. The Normal Transfer
Switch Position and the Normal
Source Accepted lights should
come on.
Source Accepted
Normal
Emergency
2
Use an accurate voltmeter to
check phase to phase and
phase to neutral voltages pres-
entatthetransferswitchingde-
vice normal source terminals.
3
Close the emergency source
circuit breaker. (Start generator,
if necessary.) The Emergency
Source Accepted light should
come on.
Source Accepted
Normal
Emergency
4
Use an accurate voltmeter to
check phase to phase and
phase to neutral voltages pres-
entatthetransferswitchingde-
vice emergency source termi-
nals.*
5
Useaphaserotationmeterto
check phase rotation of emer-
gency source; it must be the
same as the normal source.
UVW
6
Shut down the engine–genera-
tor, if applicable. The Emergen-
cy Source Accepted light should
go off. Then put the starting
control selector switch (on the
generator set) in the automatic
position. Close enclosure door.
Source Accepted
Normal
Emergency
Now continue to 3 – Electrical Operation on next page.
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INSTALLATION (continued)
1--5
pressthisbutton
observe these lights
Figure 1–8. Standard controls and indicators.
3 – Electrical Operation
This procedure will check the electrical operation of the
Automatic Transfer Switching Equipment.
Close the automatic transfer switching
equipment enclosure door and tighten the
screws before you test electrical operation.
Transfer Test
Both normal and emergency sources must be available
and the emergency source generator (if used) must be
capable of being started in this procedure.
Perform steps 1 through 8 at the right. Observe the status
lights. See Figure 1–8.
OBlack circle means light is on.
PWhite circle means light is off.
NOTE: If Motor Load Transfer
feature is activated, then transfer may
not occur immediately after the
respective time delays. Transfer will
only occur when the phase relationship
betweensourcesiscorrect.
NOTE: The operating transfer time of the transfer
switching device is 0,17 second maximum, which is
measured from the time that power is applied to the
operating coil of the transfer switching device until the
main contacts close on the alternative source.
This completes the Functional Test of the ASCO
Series 200 Automatic Transfer Switching Equipment.
Leave the engine–generator starting control in the
automatic position.
1
The normal source must be
available and the generator
must be ready to start.
Check that the Normal Source
Accepted light is on.
Source Accepted
Normal
Emergency
2
Press and hold the Transfer Test
button until the engine starts
and runs. This should happen
within 15 sec.
Transfer
Tes t
3The Emergency Source
Accepted light should come on.
Source Accepted
Normal
Emergency
4
The transfer switching device
should transfer to the
Emergency position. The
Emergency Transfer Switch
Position light should come on
and the Normal light should go
off.
Transfer Switch
Position
Normal
Emergency
5
If the transfer to emergency
delay is used the transfer
should occurs after a time delay
(up to 5 minutes).
Forimmediatetransferpress
the Bypass Time Delay button.
Bypass
Time Delay
6
The transfer switching device
should transfer back to the
Normal position. The Normal
Transfer Switch Position light
should come on and the
Emergency light should go off.
Transfer Switch
Position
Normal
Emergency
7
If the retransfer to normal delay
is used the retransfer should
occur after a time delay
(up to 30 minutes).
Forimmediateretransferpress
the Bypass Time Delay button.
Bypass
Time Delay
8
The unloaded running delay
keeps the generator running for
5 minutes (cool–down period).
Then the generator should stop
and the Emergency Source
Accepted light should go off.
Source Accepted
Normal
Emergency
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Hold 15 sec.to
start the engine
generator and to
transfer the load
to emergency.
Press to cancel the
active exercise period
(stops engine now or
after cooldown) See
page 5–1.
Hold 5 sec.toset
20 min. engine exercise
period immediately (engine
starts) and weekly thereafter.
³blinks slowly when
button is released (set)
and during 20 min.
exercise period.
³blinks rapidly when
button is held 5 sec.
while being set
Lights show position of transfer switching device. Lights show the sources accepted.
Light for built–in
engine exercise timer:
Seepage5–1
for complete
instructions
Figure 2–1. Membrane controls and indicator lights.
³stays on after engine
stops (exerciser is
enabled for weekly
operation)
SECTION 2 SEQUENCE OF OPERATION
2 --- 1
Transfer To Emergency
Thesequenceforloadtransferto
emergency source begins
automatically when normal
source voltage falls below the
preset dropout point or when
Transfer Test button is pressed. An
under voltage condition on any
phase of the normal source is
detected by the sensor.
When the normal
source voltage fails
or the Transfer Test
button is pressed, the
SE relay de-ener-
gizes and relay NR
begins its timing
cycle (1 or 3 seconds,
momentary normal
source outage delay). The NR relay is provided with a time
delay on dropout to override momentary outages and
prevent nuisance starting of the engine-driven generator.
If the normal source voltage returns above the sensor
dropout setting before the time delay expires, the NR
relay timing cycle is reset to zero and relay SE energizes.
If the normal source voltage does not return above the
sensor dropout setting before the time delay expires, the
NR relay de-energizes and signals the engine-driven
generator to start. At the same time, a voltage and
frequency sensor begins monitoring the emergency
source. The sensor will accept the emergency source only
when both voltage and frequency reach preset pickup
points. Usually about ten seconds elapse from dropout of
the NR relay to acceptance by the sensor. This time span
occurs because the engine-driven generator must crank,
start, and run up to nominal pickup points. For this
reason, if the Transfer Test buttonispresseditmustbe
held for 15 seconds. If the emergency source is available
immediately, the sensor may accept it as soon as NR relay
drops out.
When the emergency source is accepted by the sensor,
relay ER begins its timing cycle (transfer to emergency
delay). ER relay is provided with an adjustable (0 to 5
minutes) time delay on pickup to delay transfer of the
load to the emergency source. For immediate transfer
press Bypass Time Delay button.
ER relay energizes, the TS coil is energized, the
transfer switching device operates, and all switch
contacts (mains, controls, auxiliaries) reverse position.
The transfer switch is now supplying the load from the
emergency source.
The transfer switching device will remain in the
Emergency position until the normalsource is restored.
If the Transfer Test button is used, the transfer switching
device will remain on emergency until the retransfer to
normal delay times out.
Retransfer to Normal
The sequence for load retransfer to the normal source
automatically begins when the voltage sensor detects
restoration of the normal source. The voltage level
must rise above the preset pickup point on all phases
before the sensor will accept the normal source.
When the normal source is accepted by the sensor,
relay SE begins its timing cycle (adjustable 1 sec. to 30
min., retransfer to normal delay). For immediate
retransfer press Bypass Time Delay button. SE relay is
provided with a time delay on pickup to prevent
immediate load retransfer to the normal source. The
delay insures that the normal source has stabilized
before reconnection of vital loads. If the normal source
voltage falls below the present dropout point before the
time delay expires, the timing cycle is reset to zero. If
the emergency source fails for more than 4 seconds
during the timing cycle, ER relay drops out and the load
is immediately retransferred to the normal source, if
that source is acceptable.
SE relay energizes and ER relay is dropped out. The TS
coil is energized, the transfer switching device oper-
ates, and all switch contacts (mains, controls, auxilia-
ries) reverse position. The transfer switching device is
now supplying the load from the normal source again.
Upon retransfer to the normal source, NR relay begins
its timing cycle (unloaded running delay [engine cool-
down] ). NR relay is provided with a 5 minute time
delay on pickup to keep the engine running for a
cool-down period.
NR relay energizes after the time delay and signals the
engine-driven generator to shut down. All circuits are
reset for any future normal source failure.
Activation of standard control features shown in Section
5 will alter the sequence of operation and introduce
additional time delays during transfer operations.
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SECTION 3 TESTING & SERVICE
3--1
PREVENTIVE MAINTENANCE
Reasonable care in preventive maintenance will insure
high reliability and long life for the automatic transfer
switch.
Operate the switch at least once a month.Performthis
four step Electrical Operation Test. This is a test with
load transfer.
Transfer Switch Test
1. Press and hold the door-mounted TRANSFER
SWITCH TEST button until the engine starts and
runs. This should happen within 15 seconds.
2. The transfer switching device will operate to the
Emergency position. If the Transfer To Emer-
gency Delay is used, the transfer will occur after
a time delay (up to 5 minutes). For immediate
transfer press BYPASS TIME DELAY button.
3. The transfer switching device will operate back
to Normal position after the Retransfer To Nor-
mal Delay (up to 30 minutes). For immediate
retransfer press BYPASS TIME DELAY button.
4. Unloaded Running (Engine Cooldown) Delay
allows engine to run unloaded for 5 minutes.
Clean and inspect the switch once a year. De-energize
all sources, then brush and vacuum away any excessive
dust accumulation. Remove the transfer switch barriers
and check contact condition. The non–replaceable main
contacts are designed to last the life of the transfer switch.
Reinstall the barriers carefully.
Maintain transfer switch lubrication.Thetransfer
switch has been properly lubricated, and under normal
operating conditions no further lubricating is required.
Renew factory lubrication if the switch is subjected to
severe dust or abnormal operating conditions.
Relubricate the solenoid operator if a coil is replaced.
Do not use oil. Order lubrication 625550–001 (Castrol
EndurexR4000 lubricant).
Replacement parts. Replacement parts are available in
kit form. When ordering parts provide the Serial No. and
Catalog No. from the transfer switch nameplate.
Contact your local ASCO Power Technologies sales
office.
DISCONNECTING THE CONTROLLER
The harness disconnect plugs are furnished for repair
purposes only and should not have to be unplugged. If the
controller must be isolated, follow these steps carefully.
Disconnecting the Plugs
1. Observe the position of the transfer switching device.
a. If the transfer switching device is in the Normal
position, place standby engine starting control in the
off position. Then open the emergency source circuit
breaker.
b. If the transfer switching device is in the Emergency
position, open the normal source circuit breaker.
Place the engine starting control in the test or run
position.
2. Separate the quick disconnect plugs by squeezing
the latches. Do not pull on the harness wires.
3. Label, remove, and tape the signal wires connected
to the engine start terminals on the transfer switch-
ing device: TB1 and TB3, or TB1 and TB2.
Reconnecting the Plugs
1. Observe the position of the transfer switching device.
a. If the transfer switch is in the Normal position, be
sure that the standby engine starting control is still
in the off position. The emergency source circuit
breaker still should be open.
b. If the transfer switch is in the Emergency position,
normal source circuit breaker still should be open.
2. Reconnect the signal wires connected to the
appropriate engine start terminals on the transfer
switch. See Section 1,Engine Starting Contacts.
3. The harness plugs and sockets are keyed. Carefully
align the plugs with the sockets and press straight in
until both latches click.
4. Restore the opposite source as follows:
a. If the transfer switch is in the Normal position,
place the standby engine starting control in the
automatic position. Then close the emergency
source circuit breaker.
b. IfthetransferswitchisintheEmergency position,
close the normal source circuit breaker. The load will
be automatically retransferred to the normal source
after the Retransfer to Normal Delay. For immediate
retransfer, press BYPASS TIME DELAY button.
Place the engine starting control in the automatic
position.
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TESTING & SERVICE (continued)
3--2
MANUAL LOAD TRANSFER
This procedure will manually transfer the load if the
controller is disconnected.
Do not manually operate the transfer switching
device until both power sources are
disconnected: open both circuit breakers.
1. Open normal and emergency source circuit
breakers.
2. Use the maintenance handle to manually operate
transfer switching device to the opposite source.
See page 1–4, Manual Operation Test.
3. If the transfer switching device is in the
Emergency position manually start the engine
generator and then close the emergency source
circuit breaker.
TROUBLE-SHOOTING
Note the control features that are activated or
furnished on the switch and review their operation.
Refer to Section 5,Control Features.Proceed with care! The automatic transfer
switching equipment is energized.
Table 3-1. Trouble-Shooting Checks.
P
R
O
B
L
E
M
CHECK IN NUMERICAL SEQUENCE
P
R
O
B
L
E
M
1OPERATION 2 GEN-SET 3VOLTAGE
Gen-Set does not start when
the TRANSFER SWITCH TEST
button is pressed and held for
15 seconds or when the
normal source fails.
Hold the TRANSFER SWITCH
TEST button 15 sec. or the
outage must be long enough
to allow for the 1 or 3 sec.
Momentary Normal Source
Outage Delay plus engine
cranking and starting time.
Starting control must be in
automatic position. Batteries
must be charged and
connected. Check wiring to
engine starting contacts.
—
Transfer switching device
does not transfer the load to
emergency source after the
gen-set starts.
Wait for Transfer to Emergen-
cy Delay (0 to 5 min.) to time
out. For immediate transfer,
press the BYPASS TIME
DELAY button. If Motor Load
Transfer is active, wait for in-
phase condition (see below).
Generator output circuit
breaker must be closed.
Generator frequency must be
at least 95% of nominal
(48Hzfora50Hzsystem).
Voltmeter should read at least
90% of nominal phase to
phase voltage between
transfer switch terminals U2
and W2 (or L1 and L5 for 2
pole switches). *
* These are factory settings.
Transfer switching device
does not transfer the load to
normal source when normal
returns or when TRANSFER
SWITCH TEST button is
released.
Wait for Retransfer to Normal
Delay (1 sec. to 30 min.) to
time out. For immediate re–
transfer, press BYPASS TIME
DELAY button. If Motor Load
Transfer is active, wait for in-
phase condition (see below).
—
Voltmeter should read at least
90% of nominal phase to
phase voltage between
transfer switching device
terminalsV1andW1,W1and
U1, and U1 and V1 (or L2 and
L6 for 2 pole switches).
Gen-Set does not stop after
load retransfer to the normal
source.
Wait for the 5 minute
Unloaded Running Delay to
time out.
Starting control must be in
automatic position. —
Trouble-Shooting the Motor Load Transfer Feature (refer to page 5–3)
Use extreme caution when using a meter to
measure voltages in the following steps. Do not
touch power terminals; shock, burns, or death
could result !
1. Connect a voltmeter (set for twice system
phase–to–phase voltage) between transfer
switching device terminals U1 and U2 (for 3 pole)
or L1 and L2 (for 2 pole).
2. Manually start generator. Voltmeter needle should
sweep back and forth at a regular rate between 0
and about twice system voltage.
3. Press and hold the Tra n s f er Te s t button. The load
should transfer to emergency source when meter
needle is near 0 volts. If transfer does not occur,
Motor Load Transfer feature is not operating.
4. Release the Tr a n s fe r Te s t button. The load should
retransfer back to the normal source after the
Retransfer to Normal Delay,ifused. Theretransfer
should occur when the needle is near 0 volts. If
retransfer does not occur after the time delay, the
Motor Load Transfer feature is not operating.
5. For immediate retransfer, press the Bypass Time
Delay button. Then disconnect the voltmeter.
If the problem is isolated to circuits on the controller or the transfer switching device, call your local ASCO
Power Technologies sales office. Furnish Serial No., Bill of Material (BOM) No., & Catalog No. from the
transfer switching device nameplate.
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SECTION 4 ADJUSTMENTS
4--1
Time Delay Adjustment
Standard time delays are set to customer specifications
(if none specified, standard factory settings are used).
To change a setting, follow procedure on page 4-2. Use
Table 4-1 as a guide to time delay values and their corre-
sponding adjustment DIP switch or potentiometer.
Table4-1.TimeDelaySettings
DESCRIPTION LABELS FACTORY
SETTING
ADJUSTMENT
RANGE
S3 DIP
SWITCH
ADJUSTMENT
POTENTIOMETER
Override Momentar
y
T
D
E
S
3
s
e
c
o
n
d
s
1second Actuator 1 on
1
O
v
e
r
r
i
d
e
M
o
m
e
n
t
a
r
y
Normal Source Outages
T
D
E
S
3secon
d
s
3seconds Actuator 1 off
1
—
T
r
a
n
s
f
e
r
t
o
E
m
e
r
g
e
n
c
y
TIMER 0 minutes 0to5
P
2
T
rans
f
er to
E
mergency
T
I
M
E
R
N
/
E
0
m
i
n
u
t
e
s
(full ccw)
0
t
o
5
minutes
—
—
P
2
Override Momentary
Emergency S. Outages —4seconds non-adjustable — — —
R
e
t
r
a
n
s
f
e
r
t
o
N
o
r
m
a
l
TIMER 30 minutes 1secondto
P
1
R
etrans
f
er to
N
orma
l
T
I
M
E
R
E
/
N
3
0
m
i
n
u
t
e
s
(full cw)
1
s
e
c
o
n
d
t
o
30 minutes
—
—
P
1
Unloaded Running
(Engine Cooldown) —5 minutes non-adjustable — — —
Sensor Adjustments
Voltage and frequency sensor pickup and dropout
points are set to customer specifications (if none
specified, standard factory settings are used). To change
a setting, follow procedure on page 4–2. Use Tables 4-2
and 4–3 for settings and corresponding DIP switch
actuators.
NOTICE
Any change in these settings may affect the
normal operation of the automatic transfer
switching equipment. This change could allow
the load circuits to remain connected to a low
voltage source.
Table 4-2. Voltage and Frequency Settings. ( Shaded DIP switches are standard factory settings).
D
E
S
C
R
I
P
T
I
O
N
L
A
B
E
L
S
S
E
T
T
I
N
G
%ofnominal S1 DIP
D
E
S
C
R
I
P
T
I
O
N
L
A
B
E
L
S
S
E
T
T
I
N
G
FACT. SET ADJ RANGE
S
1
D
I
P
SWITCH
P
U
/
N
P
i
c
k
u
p
9
0
%
95 % * Actuator 3 off
3
P
U
/
N
P
i
c
k
up 90 %
90 % Actuator 3 on
3
90 % * Actuator 1 off
Actuator 2 off
21
Normal Source Voltage
D
O
/
N
D
r
o
p
o
u
t
8
5
%
85 % Actuator 1 on
Actuator 2 off
21
DO
/
NDropout 85 %
80 % Actuator 1 off
Actuator 2 on
21
70 % Actuator 1 on
Actuator 2 on
21
Emer
g
enc
y
Source Volt- –– Pickup 90 % non-adjustable
E
m
e
r
g
e
n
c
y
S
o
u
r
c
e
V
o
l
t
age –– Dropout 75 % non-adjustable ––
–– Pickup 95 % non-adjustable
E
m
e
r
g
e
n
c
y
S
o
u
r
c
e
–– Dropout 85 % non-adjustable ––
Emergency Source
Frequency 60
/
50
6
0
/
5
0
H
z
6
0
H
z
60 Hz Actuator 4 off
4
e
q
u
e
c
y
6
0
/
5
0
Hz 60
/
50
H
z60
H
z
50 Hz Actuator 4 on
4
V
o
l
t
a
g
e
P
h
a
s
e
s
3
4
1
4
3
4
/
1
4
3
4
3phase Actuator 6 off
6
V
o
l
tage
P
h
ases 34,1434
/
1434
1phase Actuator 6 on
6
* If dropout voltage is set to 90%, the pickup voltage must be set to 95%.
Table 4-3. Transformer Voltage Adjust.
(Low setting shifts all voltage settings down 4.2%; for example, 240 V to 230 V, or 480 V to 460 V)
DESCRIPTION LABELS FACTORY SETTING ADJUSTMENT S3 DIP SWITCH
V
o
l
t
a
g
e
A
d
j
u
s
t
(
4
2
%
)
L
OW
/
H
I
LOW Actuator 2 off
2
V
o
l
tage
A
d
j
ust
(
4.2%
)
L
O
W
/
HI
H
I
HI Actuator 2 on
2
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ADJUSTMENTS (continued)
4--2
NOTICE
Do not make any setting changes while the
controller is energized.
How to Change a Setting
1. Prevent the transfer switching device from operat-
ing by disconnecting one source first, then the
other, as follows:
a. If the transfer switching device is in the Normal
position, open the emergency source circuit
breaker. Turn the engine starting control to off.
Then open the normal source circuit breaker.
b. If the transfer switching device is in the
Emergency position, open the normal source
circuit breaker. Turn engine starting control to
test or run. Then open the emergency source
circuit breaker.
2. Disconnect both harness plugs from controller by
squeezing the latches. Do not pull on the wires.
3. Remove cover from the controller by releasing latch
on right side with your thumb. See Figure 4-1.
4. Locate the appropriate adjustment potentiometer or
DIP switch for the setting that you want to change.
Refer to Table 4-1 and Table 4–2 on page 4-1 and
Figure 4-2, Figure 4–3, Figure 4–4 on page 4–2.
5. Use a small screwdriver to turn the potentiometer
clockwise to increase the time delay or counter-
clockwisetodecreaseit. SeeFigure4-3.
6. Use a ball-point pen (or similar pointed tool) to
slide the switch actuators left or right so they match
the illustration next to the setting(left =off, right =
on). Recheck the setting. See Figure 4-4.
7. Install the cover on the controller by hooking it on
the left side and latching the right side.
8. Reconnect both harness plugs to the controller by
aligning and pressing straight in until latches click.
Close the automatic transfer switching
equipment enclosure door and tighten the
screws before restoring power.
9. Close the enclosure door, then restore bothsources:
a. If the transfer switching device is in the Normal
position first close the normal source circuit
breaker, then close the emergency source cir-
cuit breaker.
b. If the transfer switching device is in the
Emergency position, close the normal source
circuit breaker. The load will be automatically
retransferred to the normal source. Then close
the emergency source circuit breaker.
10. Turn the engine starting control to automatic.
thumb
latch
cover
hook on
left side
Figure 4-1. Controller cover latch.
9volt
alkaline
battery
battery
on/off
jumper
retransfer
to normal
time delay
transfer to
emergency
time delay
harness
plugs
S3 DIP
switch
S1 DIP
switch
S2 DIP
switch
P1
P2
J5
Figure 4-2. Location of potentiometers,
DIP switches, battery, and battery jumper.
P1 or P2
potentiometer
clockwise to
increase
counterclockwise
to decrease
Figure 4-3. Changing time delay potentiometers.
DIP
switches
SW1
SW2
SW3 actuator
onoff
(8 on each DIP switch)
Figure 4-4. Setting DIP switch actuators.
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SECTION 5 CONTROL FEATURES – ENGINE EXERCISERS
5--1
These timers periodically exercise the emergency engine-generator plant. They can be set to exercise with or without
load transfer, or they can be completely disabled. The engine-generator should be exercised under load once a week for
a minimum time period of 20 minutes, or follow the recommendations of the engine-generator set manufacturer. Refer
to page 4–2 for location of DIP switches, battery (provided), and jumper block in the controller.
BUILT–IN ENGINE EXERCISER
The engine exerciser included in the Series 200 automatic
transfer switching device provides a once a week
20–minute exercise period. It occurs immediately when
the SET ENGINE EXERCISER push button is pressed
(and held for at least 5 seconds), and then at the same
time weekly thereafter. A 9 volt alkaline battery
(DuracellRMN1604, EverreadyR522, or PanasonicR
6AM6) is furnished and installed in the controller to
maintain the setting. The battery jumper block must be
shifted to the ON position. See Figure 4–2 on page 4–2.
Fill in day and time set. Week Day ______ Time _______.
DIP Switch Settings
FUNCTION S1 DIP
SWITCH
S2 DIP
SWITCH
Std. Timer
Enabled
Actuator
7on
7
Actuator
5on
5
Std. Timer
Disabled
Actuator
7off
7
Actuator
5on
5
Exercise
without
Load
Actuator
8off
8
Exercise
with Load
Actuator
8on
8
Shaded DIP switches are standard factory settings.
status light
If Exerciser with Load is set,
transfers load to Emergency.
If Exercise with Load is set, retransfers load to
Normal, then stops generator after min. cooldown.
Press to cancel an active exercise
period (stops generator). Press and hold for 5 sec. or until status light
blinks rapidly to set exercise period immediately
and every week hereafter (generator starts).
Figure 5-1. Operator panel pushbuttons and light.
Select below either Exercise without Load or Exercise with Load according to the setting of DIP switch S1, actuator 8. The
load transfers from the Normal source to Emergency source (generator) and back again if Exercise with Load is selected.
Exercise without Load, DIP Switch S1, Actuator 8 off
8
How to Set Built–In Timer
Step Function Explanation
Push Button Status Light
1
SET ENGINE
EXERCISER
hold 5sec.
blinks rapidly
FfFfFf set exercise period Exercise the generator now and every week at this time hereafter.
2release blinks slowly
FffFff exercise period now active Generator starts and runs.
3press BYPASS
TIME DELAY Fstays on cancel active exercise period Generator stops.
4 — Fstays on generator off Exerciser enabled; repeats every 7 days.
Exercise with Load, DIP Switch S1, Actuator 8 on
8
How to Set Built–In Timer
Step Function Explanation
Push Button Status Light
1
SET ENGINE
EXERCISER
hold 5sec.
blinks rapidly
FfFfFf set exercise period Exercise the generator now and every week at this time hereafter.
2release blinks slowly
FffFff exercise period now active Generator starts and runs; the load transfers to Emergency.
3press BYPASS
TIME DELAY
blinks slowly
FffFff cancel active exercise period
The load retransfers to Normal; then
generator runs for 5 minute cooldown
( light blinks slowly during cooldown ).
4 — Fstays on generator off Exerciser enabled; repeats every 7 days.
NOTE:EverytimeSET ENGINE EXERCISER push button is pressed (held 5 seconds) the exercise period is changed.
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CONTROL FEATURES (continued)
5--2
OPTIONAL PROGRAMMABLE ENGINE EXERCISER (Accessory 11CD)
The optional programmable engine exerciser provides
seven days of different exercise periods. The timer is
connected and mounted below the controller. A
permanent backup battery maintains the setting; when
power is lost to timer, output switch deenergizes.
DIP Switch Settings
FUNCTION S1 DIP
SWITCH
S2 DIP
SWITCH
Opt. Timer
Enabled
Actuator
7off
7
Actuator
5off
5
Opt. Timer
Disabled
Actuator
7off
7
Actuator
5on
5
Exercise
without
Load
Actuator
8off
8
Exercise
with
Load
Actuator
8on
8
Shaded DIP switches are standard factory settings.
The Accessory 11CD Programmable Engine Exerciser
incorporates a 7 day time base, and therefore, each day of
the week can be uniquely programmed to test the engine
generator set either with or without load. The proper
controller settings must be made to determine whether or
not the test will be conducted with or without load (refer
topage5–1forproperselection). Forconvenience,Block
Programming is also provided,wherebyuptosevendays
can be grouped together if the ON and OFF times are the
same.
See next page for instructions on setting the timer. 
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CONTROL FEATURES (continued)
5--3
How to Set Optional Programmable Engine Exerciser (Accessory 11CD)
Proceed with care! The automatic transfer
switching equipment is energized.
Setting the Clock (Time and Day)
Step Press Button Display Meaning
1reset
1234567 (blink)
00 00
¬f
after self-test,
clears memory
2
↓
hold h,then
press ±1h
1234567
AM 12 00
¬f
military 24 hr
or AM/PM
12 hr time
Note Repeat step 2 to toggle between
military (blank display) and AM/PM time.
3
hold ¬
(clock symbol)
1234567 (blink)
00 00
¬f
hold ¬while
setting thru
step 7
4
±1h once
(if Daylight
Saving Time)
±1h
do nothing if it
is Standard
Time.
5h(hold for
fast count) [00] 00 hour
6m(hold for
fast count) 00 [00] minute
7Day Mo Tu We Th Fr
Sa Su day
8release ¬:blinking time & date set,
clock starts
Programming Engine On-Off Period(s)
Step Press Button Display Meaning
1Prog.
(do not hold)
1234567
–– : –– begin
2hand ¬on
3hstart hour
4mstart minute start engine
5Day start day
g
Note Successive pressing displays blocks of days:
Mon–Sat, Mon–Fri, Sat & Sun (1 is Monday)
6Prog. 1234567
–– : –– begin
7Press hand
(2 times)
foff
8hstop hour
9mstop minute stop engine
10 Day stop day
p
g
11 ¬:blinking program set
display
clock
button
Figure 5-2. Exerciser display and push buttons
program
button
±1h
button
hour
button
minute
button
day
button
reset
button
on/off button
Changing or Checking Time Programs
By operating the Prog. button, the individual commands
as programmed can, at any time, be brought consecutively
into the display for revision or checking. Revisions are
accomplished by programming over the existing programs
using the steps at the left.
Canceling Time Programs
After the selecting the desired program, use the hand
mbuttons to set hours and minutes to zero; the ––:–– will
be displayed. This program has been made ineffective
and will no longer be carried out. To cancel all programs,
press the Res. (reset) button. This clears all memory
including the time base and program storage.
Manual Override
Do not manually override the exerciser unless you
are sure that the controller has been set for
exercisewithoutload(seepage5–2).Failuretodo
so could result in possible injury if the transfer
switch operates while the enclosure door is open.
Step Press Button Display Meaning
1hand ¬hand on
2hand [¬]permanent on
3hand [f]permanent off
4hand ¬fback to automatic
Daylight Savings / Standard Time Change
To change to Daylight Savings time (Summer time), press the
¦1h button once. Clock advances by one hour and +1h
appears in display.
To change to Standard Time (Greenwich mean time in UK,
Middle European time in Germany), press the ¦1h button
again; the clock sets back one hour and +1h disappears.
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CONTROL FEATURES (continued)
5--4
INPHASE MONITOR
FOR MOTOR LOAD TRANSFER
Inphase monitoring logic controls transfer and retransfer
of motor loads, so that inrush currents do not exceed
normal starting currents. It avoids nuisance tripping of
circuit breakers and mechanical damage to motor
couplings.
The Motor Load Transfer feature is built into the
controller. DIP switch S1 (actuator 5) activates this
feature: right = ON, left = OFF.
FUNCTION S1 DIP SWITCH
enable Actuator 5 on
5
disable Actuator 5 off
5
Shaded DIP switches are standard factory settings.
If the Motor Load Transfer feature is enabled,
it will be activated following the Load
Disconnect Feature Delay Before Transfer
delay.
Note
LOAD DISCONNECT FEATURE
Connect external circuits to the terminals indicated on
the Wiring Diagram provided with the ATSE.
The double throw (Form C) contact is rated for 28 VDC
or 120 VAC (5 amps resistive). The contact operates prior
to a selectable 0, 3, 10, or 20 second delay before transfer
of the automatic transfer switching device. The contact
resets either immediately following transfer or after the
same delay as set for pre–signal before transfer.
Time delay between the load disconnect control signal
and initiation of transfer is set on the controller with DIP
switch S2 (actuators 6, 7, 8) as shown below:
Delay Before Transfer
LD TDBT S2 DIP SWITCH
0 (disable) Actuator 7 on
Actuator 8 on
87
3seconds Actuator 7 on
Actuator 8 off
87
10 seconds Actuator 7 off
Actuator 8 on
87
20 seconds Actuator 7 off
Actuator 8 off
87
Shaded DIP switches are standard factory settings.
Delay After Transfer*
LD TDAT S2 DIP SWITCH
enable Actuator 6 on
6
disable Actuator 6 off
6
*Enabling the Delay After Transfer will cause the control
signal to reset after the same delay as set for the Delay
Before Transfer.
REMOTE CONTROL FEATURES
These remote control features require a customer–supplied normally closed contact suitable for a 5 V dc low energy
circuit. Refer to the Wiring Diagram provided with the ATS. Activate appropriate DIP switch S2 actuators below.
Remote Test (terminals CP6–7)
RTSW S2 DIP SWITCH
disable Actuator 3 on
3
enable Actuator 3 off
3
Bypass Transfer Time Delay (CP12–13)
TD E/N BYP. S2 DIP SWITCH
disable Actuator 1 on
1
enable Actuator 1 off
1
Remote Transfer to Emergency (CP8–9)
RT /E S2 DIP SWITCH
disable Actuator 2 on
2
enable Actuator 2 off
2
Inhibit Transfer to Emergency (CP10–11)
N/E INHIB. S2 DIP SWITCH
disable Actuator 4 on
4
enable Actuator 4 off
4
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INDEX
Printed in U.S.A. E2011 ASCO Power Technologies, L.P.
A
accessories, 5–2, 5–3, 5–4
auxiliary circuits, 1–3
B
barriers, 1–2
battery, 4–2, 5–1
buttons, push, 3–1
bypass time delay, 1–5, 2–1, 3–1
C
catalog number, inside cover
cleaning, 3–1
conductors
preparation, 1–2
terminals, 1–2
connections
engine control contact, 1–2
power, 1–2
control features, 5–1
load disconnect, 5–4
motor load transfer, 5–4
plant exerciser, 5–1
controller (control panel), 4–1, 4–2
codes, cover
cover removal, 4–2
disconnecting, 3–1
time delay potentiometers, 4–2
D
DIP Switches, 4–1, 4–2, 5–1, 5–2,
5–4
E
electrical operation, 1–5
engine exerciser, 5–1, 5–2, 5–3
engine starting contacts, 1–2
F
failure
see trouble-shooting, 3–2
features, see control features
frequency, pickup and dropout
settings, 4–1
functional test, 1–3, 1–4, 1–5
H
harness, 1–1
disconnect plugs, 3–1
HELP
800–800–2726 (ASCO)
[e-mail]
I
inphase monitor, 5–4
inspection, 3–1
installation, 1–1
L
labels,
rating, cover
lights, 1–5, 5–1
load disconnect feature, 5–4
lubrication, 3–1
M
maintenance, preventive, 3–1
manual load transfer, 3–2
warning, 3–2
manual operation, 1–3
illustration of, 1–3
warning, 1–3
motorloadtransferfeature,5–3
N
nameplate, cover
O
operation
electrical, 1–5
manual, 1–3
illustration of, 1–3
warning, 1–3
sequence of, 2–1
P
parts, 3–1
problem, 3–2
programmableengineexerciser,
5–2, 5–3
R
remote control features, 5–4
bypass transfer time delay, 5–4
inhibit transfer to emergency,
5–4
remote test, 5–4
remote transfer to emergency,
5–4
replacement parts, 3–1
S
service
800–800–2726 (ASCO)
[e-mail]
set engine exerciser, 5–1
settings
changing, 4–1
factory, 4–1
frequency, 4–1
phase, 4–1
time delay, 4–1
voltage, 4–1
T
terminal block, 1–3
test, functional, 1–3, 1–4, 1–5
time delay
adjustment, 4–1
gen–set cooldown, 4–1
how to change, 4–2
override momentary outages, 4–1
settings, 4–1
transfer to emergency, 4–1
transfer to normal, 4–1
timer (plant exerciser), how to set,
5–1
transfer switch test, 1–5, 3–1
trouble–shooting, 3–2
inphase monitor, 5–4
V
voltage, phase, 4–1
voltage, pickup and dropout set-
tings, 4–1
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