A-T Controls TRIAC FSE Series Manual


FSE Series Electric Actuator
Installation & Maintenance Manual
1 November 18, 2022
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FSE Series Spring Return Electric Actuator
Installation and Maintenance Manual


FSE Series Electric Actuator
Installation & Maintenance Manual
2 November 18, 2022
www.atcontrols.com Engineering\documents\products\IOM\Iom08026.docx
Contents
Contents .....................................................................................................................................................................2
OVERVIEW ................................................................................................................................................................3
General Information ....................................................................................................................................................3
Safety Instructions .................................................................................................................................................3
Installation Notices .................................................................................................................................................3
Inspection, Storage, Transport...............................................................................................................................4
SPECIFICATION ........................................................................................................................................................5
Identification ...........................................................................................................................................................5
Technical Information .............................................................................................................................................5
Electrical Data ........................................................................................................................................................6
INSTALLATION ...........................................................................................................................................................7
Manual Handwheel ................................................................................................................................................7
Mounting ................................................................................................................................................................7
WIRING DIAGRAM .....................................................................................................................................................9
110V, 220V AC 1-Phase / On-Off Controller (two-position) ...................................................................................9
24V AC/DC On-Off Controller (two-position) ...................................................................................................... 10
110V, 220V AC 1-Phase / Modulating Controller ................................................................................................. 11
CALIBRATION ......................................................................................................................................................... 12
Actuator Setup .................................................................................................................................................... 12
Setting the fail (spring released) position: .......................................................................................................... 13
Setting the end (spring compressed) position: ................................................................................................... 14
On-Off Control Board Adjustment ............................................................................................................................ 16
Modulating Control Actuators Potentiometer Setting ............................................................................................... 16
Modulating Control Board Adjustement ................................................................................................................... 17
1. Layout .......................................................................................................................................................... 17
2. Programming ............................................................................................................................................... 17
3. DIP Switch Setting (SW1) ............................................................................................................................ 18
4. P4 Terminal .................................................................................................................................................. 20
5. Sensitivity Switch (SW2) .............................................................................................................................. 20
6. Settings for OPEN and CLOSE ................................................................................................................... 21
TROUBLE SHOOTING............................................................................................................................................ 22
ON-OFF Controller ............................................................................................................................................. 22
Modulating Controller .......................................................................................................................................... 24
Exploded Views & Parts Lists .................................................................................................................................. 26
Model FSE-440 ................................................................................................................................................... 26
Model FSE-1150, FSE-1770, FSE-2300 ............................................................................................................ 30
Model FSE-440MO ............................................................................................................................................. 34
Model FSE-1150MO, FSE-1770MO, FSE-2300MO ........................................................................................... 38


FSE Series Electric Actuator
Installation & Maintenance Manual
3 November 18, 2022
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OVERVIEW
Triac electric spring return actuators are designed to provide fail-safe positioning of valves and dampers
upon loss of supply voltage, and include on/off control and modulating control. A mechanical spring set is used to
position the controlled device to either the fully counterclockwise (OPEN) or fully clockwise (CLOSED) position
without any external power source. For ON-OFF type, a mechanical BUFFER employed at the end of the spring
stroke in order to reduce the dynamic effects of the spring return system. A clutch-less and lever-less manual
overrideis available to provide manual positioning of the controlled device.
General Information
Safety Instructions
 Installation, maintenance and repair works must be performed by trained personnel.
 Handling shall follow the safety and warning instruction contained in this manual.
 The user should read and follow instructions contained in this operation manual. Failure to do so may result
in damages and void warranty.
 Local health and safety legislation shall be complied with.
 In some cases, the surface temperature may exceed 140°F (60°C). Please check surface temperature
before operation.
Installation Notices
CAUTION: For safety reasons, do not remove or inspect the SPRING STRUCTURE. Serious injury
of damage may occur unless proper tools are used.
Operating by handwheel: Do not use any tools to increase force on handwheel for operating as this
can damage the actuator or valve. Actuator MUST be returned to its spring release position before
operating electrically.
 The standard spring return actuator rotates counterclockwise with power (spring compressed) and rotates
clockwise with spring released (fully closed or fully open) on loss of power.
 Please read operation manual and wiring diagram before installation.
 Verify that supply voltage is in accordance with the data on nameplate to prevent short circuit or
electrical/electronic parts damage.
 Turn off power before wiring or maintenance.
 Connect ground wire to PE point inside the actuator.
 Do not parallel wire multiple actuators together without using extra relays.
 Actuator should be installed in upright or horizontal position. Do not mount upside down or below horizontal.
 These units are not designed to operate in vacuum spaces or where an explosive atmosphere is present.
 Periodically inspect actuator enclosure to prevent dust accumulation.

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FSE Series Electric Actuator
Installation & Maintenance Manual
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Inspection, Storage, Transport
Receiving/Inspection
 Carefully inspect the package for any damage resulting from shipping and report all damages to freight
carrier and seller.
 After unpacking, please keep cartons and packing materials in case of product return or replacement. Verify
the items listed in packing slip or in bill of landing are the same as what were ordered, If there is any
discrepancy, please contact the seller.
 Verify the technical data on nameplate and labels is in accordance with what was ordered.
Storage
 The actuator should be stored in a dry area with relative humidity less than 90% (68±9°F / 20±5°C) and at
temperatures between -4°F to 104°F (-20°C to 40°C).
 The product shall be stored with suitable protection from weather, extreme vibration and corrosive
substances that can damage the actuator.
 Conduit plugs should not be removed until the actuator is ready to be cabled. Use suitable connections to
ensure enclosure rating is maintained when installing.
Transport
 Attach ropes or hooks for the purpose of lifting by hoist only to housing and not to handwheel.
 Packaged actuators shall avoid violent impact and strong vibrations and be protected from precipitation.
Lubrication
The gear train has been sufficiently lubricated at the factory and requires no additional lubrication.

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FSE Series Electric Actuator
Installation & Maintenance Manual
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SPECIFICATION
For purposes of this manual, Close = clockwise, Open = counterclockwise
Identification
Technical Information
Model No.
Max Torque
(N.m.)
Weight
(Kg.)
Drive Size
Inch (mm)
Drive Depth
Inch (mm)
Mounting Flange
(ISO 5211)
Manual
Override
FSE-440 50 27 .669 (17) 1.181 (30) F07 No
FSE-1150 130 57 .866 (22) 1.614 (41) F10 No
FSE-1770 200 95 1.063 (27) 1.772 (45) F12 No
FSE-2300 260 95 1.063 (27) 1.772 (45) F12 No
FSE-440MO 50 37 .669 (17) 1.181 (30) F07 Yes
FSE-1150MO 130 74 .866 (22) 1.614 (41) F10 Yes
FSE-1770MO 200 135 1.063 (27) 1.772 (45) F12 Yes
FSE-2300MO 260 135 1.063 (27) 1.772 (45) F12 Yes
 MO : With Manual Override Gearbox

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FSE Series Electric Actuator
Installation & Maintenance Manual
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Electrical Data
110/120VAC 1 PHASE
Model
No.
FSE
Max. Torque Motor
Power
Operation Time
(Sec./90°)
Current Ratings
Nm In-lb Motor
60Hz / 50Hz
Spring Run
60Hz / 50Hz
Lock
60Hz / 50Hz
440 50 440 50W 8 / 9 3 1.3 / 1.7 3.1 / 3.4
1150 130 1150 130W 8 / 9 10 4.0 / 2.5 4.9 / 4.9
1770 200 1700 130W 13 / 15 15 3.7 / 2.5 4.9 / 4.9
2300 260 2300 130W 15 / 18 19 3.7 / 2.5 4.9 / 4.9
220/240VAC 1 PHASE
Model
No.
FSE
Max. Torque Motor
Power
Operation Time
(Sec./90°)
Current Ratings
220VAC/1 Phase
Nm In-lb Motor
60Hz / 50Hz
Spring Run
60Hz / 50Hz
Lock
60Hz / 50Hz
440 50 440 50W 8 / 9 3 0.7 / 0.6 1.1 / 1.2
1150 130 1150 130W 8 / 9 10 2.0 / 1.4 2.4 / 2.4
1770 200 1700 130W 13 / 15 15 2.0 / 1.4 2.4 / 2.4
2300 260 2300 130W 15 / 18 19 2.0 / 1.4 2.4 / 2.4
24V AC/DC 1 PHASE
Model
No.
FSE
Max. Torque Motor
Power
Operation Time
(Sec./90°)
Current Ratings
24VAC/DC 1 Phase
Nm In-lb Motor Spring Run
DC / 60Hz / 50Hz
Lock
DC / 60Hz / 50Hz
440 50 440 50W 8 5 3.5 / 4.2 / 4.3 25.6
1150 130 1150 130W 8 4 6.9 / 8.2 / 8.4 85.0
1770 200 1700 130W 13 4 8.6 / 10.0 / 10.0 85.0
2300 260 2300 130W 16 4 8.6 / 10.0 / 10.0 85.0
* Run : Full Load Ampere
* Lock : Locked Rotor Ampere

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FSE Series Electric Actuator
Installation & Maintenance Manual
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INSTALLATION
Manual Handwheel
1. Insert screw through washers and handwheel before securing them to the override shaft as shown.
Turn off power to actuator when installing handwheel.
Mounting
The actuator is shipped in the designated fail position from the factory. Make sure the valve and actuator are in the
same position before mounting.
1. If the actuator is to fail close on loss of power, the valve must be in the closed position when mounting the
actuator. On the other hand, if the actuator is to fail open on loss of power, the valve must be in the open position
when mounting the actuator.
Valve open
for fail-open
actuation
Valve closed
for fail-close
actuation
Actuators are intended to be used
between a horizontal and upright
position. DO NOT mount with
actuator top below horizontal!

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FSE Series Electric Actuator
Installation & Maintenance Manual
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2. Remove valve mechanical stops and mount on the proper connection.
CAUTION: Don’t remove any parts necessary for the proper operation of the valve.
3. Check again that the valve and actuator are in the same position.
4. Install mounting hardware on the valve or mount on the valve directly, mount actuator to valve. Securely
tighten all bolts and screws once actuator screws have been started.
5. Remove actuator cover. CAUTION: Be sure power is off at the main power box.
6. Wire actuator using the wiring diagram inside cover.
7. Turn on power to actuator. CAUTION: Use extreme caution as there are live circuits that could cause
electrical shock or death.
8. Make sure if it is needed to calibrate the fully-open or fully-closed position of the actuator. Refer to to set the
fully -open or fully-closed position.
9. Replace cover and secure cover screws.

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FSE Series Electric Actuator
Installation & Maintenance Manual
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WIRING DIAGRAM
110V, 220V AC 1-Phase / On-Off Controller (two-position)
NOTE:
1. Input power “N” connects to 1. “L” connects to 3
through a switch (SW).
2. The motor runs
when switch (SW) is turned on. The
spring returns when switch (SW) is turned off.
3. Connect input power “L” to 7 to power heater.
4.
Terminal block “A B C D E F” must use resistive load
no greater than 5A at 250VAC.

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FSE Series Electric Actuator
Installation & Maintenance Manual
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24V AC/DC On-Off Controller (two-position)
NOTE:
1. Input power “N/-” connects to 1. “L/+” connects to 3
through a switch (SW).
2.
The motor runs when switch (SW) is turned on. The
spring returns when switch (SW) is turned off.
3. Connect input power “L/+” to 7 to power heater.
4. Terminal block “A B C D E
F” must use resistive load
no greater than 5A at 250VAC.

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FSE Series Electric Actuator
Installation & Maintenance Manual
11 November 18, 2022
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110V, 220V AC 1-Phase / Modulating Controller
NOTE:
1. Input signal: 4-20mA, 2-10V, 1-5V
2. Output signal: 4-20mA, 2-10V
3. Terminal block “A B C D E F” must use
resistive load no greater than 5A at 250VAC.
4. P4 will come on when actuator does not
operate after 15 seconds.

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FSE Series Electric Actuator
Installation & Maintenance Manual
12 November 18, 2022
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CALIBRATION
Actuator Setup
If the actuator is equipped with a manual override, rotate the handwheel to return the actuator to its
spring released position before power is supplied.
Securely tighten the conduit fittings to ensure the enclosure protection rating.
Triac Spring return actuator provided fail-safe positioning which is controlled by buffer or mechanical stops. (ON-
OFF Type controlled by buffer. / Floating and Modulating Type controlled by mechanical stops). When the actuator
is powered, the end position is determined by limit switches.
The actuator has been set and calibrated at the factory. Most products will not require recalibration of these
settings. However these are general settings. After valve and actuator are bolted together, apply power to drive
the actuator to its end (spring compressed) position. Then remove power to let the rack and pinion spring
mechanism drive back to its fail (spring released) position. If the OPEN or CLOSE stop point are not aligned with
the valve or damper correctly, the end positions must be adjusted per the following steps.
For modulating unit, be sure to loosen the sector gear of the potentiometer before adjusting the
following settings.

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FSE Series Electric Actuator
Installation & Maintenance Manual
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Setting the fail (spring released) position:
a. Remove power from actuator and take off protection cover with 5mm hex key.
b. Loosen the hex nut on the buffer or end stop using 17mm hex wrench. Hold the hex nut and turn the
buffer or end stop using a 10mm hex wrench to adjust the fail position.
c. Turn the buffer or end stop to adjust the stop point.
(i) FSE-440: one turn – 2.3 degrees
(ii) FSE-1150 to 2300: one turn = 1.4 degrees
d. After the adjustment is completed, tighten the hex nut, replace the protection cover and securely tighten
all cover screws.
If the buffer or end stop is adjusted, LS2 limit switch must be reset accordingly with the following steps.
e. Loosen the M3 cap screw of cam TC2 with a 2.5mm hex key.
f. Rotate cam TC2 until LS2 switch lever activates and then rotate TC2 back just until the switch lever
releases and then tighten cam TC2 in place.
FSE-440 FSE-1150 to FSE-2300
Fail close (CW) unit.

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FSE Series Electric Actuator
Installation & Maintenance Manual
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Setting the end (spring compressed) position:
a. Apply power to operate actuator to fully open (spring compressed) position. If the open stop point is not
aligned with the valve or damper properly, then it must be adjusted.
b. Remove power so that the actuator returns to its fully closed (spring released) position.
c. Loosen the M3 cap screw of cam TC1 with a 2.5mm hex key and adjust to increase or decrease the
actuation angle.
FSE-440 FSE-1150 to FSE-2300
Fail open (CCW) unit.
FSE-440 FSE-1150 to FSE-2300
Fail close (CW) unit.

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FSE Series Electric Actuator
Installation & Maintenance Manual
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d. After
adjusting the cam, apply power to drive actuator to the fully open (spring compressed) position.
e. Verify that the position it stops is correct. If it is correct, ensure the cam TC1 is fully tightened. If it is not
correct, remove power and readjust cam again.
f. If auxiliary switches LS3 and LS4 will be used for feedback, cams TC3 and TC4 need to be adjusted. Full
limit switch function is listed in table below.
Limit Switch Truth Table
Switch
Position
Fail / 0%
(Spring Released) Intermediate End / 100% (Spring Compressed)
LS4 1 0 0
LS3 0 0 1
LS2 0 1 1
LS1 1 1 0
FSE-440 FSE-1150 to FSE-2300
Fail open (CCW) unit.

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FSE Series Electric Actuator
Installation & Maintenance Manual
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On-Off Control Board Adjustment
Displayed board layout is for 110/220V.
Lamp
No.
Status
LED1 Power
LED2 Operating
LED3 Motor Brake
LED4 Fault Status
Modulating Control Actuators Potentiometer Setting
For modulating actuators, after completing the position calibration, turn the actuator to the spring released
position and follow the procedure below.
a. Loosen the M5 set screw on the shaft sector gear.
b. Rotate the sector gear clockwise or counterclockwise, depending on the actuator fail direction, to the
position in the figures below.
c. Tighten M5 set screw.
d. If installing new potentiometer, loosen potentiometer round gear set screw and with small screwdriver,
rotate potentiometer to its end position while the actuator is in its fail position (CCW for fail CW actuator, or
CW for fail CCW actuator). Retighten set screw.
Fail clockwise (CW) rotation Fail counterclockwise (CCW) rotation

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FSE Series Electric Actuator
Installation & Maintenance Manual
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Modulating Control Board Adjustement
1. Layout
Displayed board layout is for 110/220V.
Lamp Status Lamp Status
LD1 Fully closed (spring released) LD6 Motor thermal protector active
LD2 Fully open (spring compressed) LD7 Output signal short circuit
LD3 Power LD8 Overcurrent in motor
LD5 Wrong input signal LD9 Local setting mode
2. Programming

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FSE Series Electric Actuator
Installation & Maintenance Manual
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3. DIP Switch Setting (SW1)
The DIP Switch SW1 is a combination of 8 switches. It is utilized to select signal type of input and output as well
as positioning when the input signal is lost. Factory setting ase with switches, 1, 4, 8 in the ON state (up) and
switches 2, 3, 5, 6, 7 in the OFF state (down).
1 2 3 4 5 6 7 8
Factory Setting ON OFF OFF ON OFF OFF OFF ON
4 – 20 mA Input ON OFF
1 – 5V Input OFF OFF
2 – 10V Input OFF ON
4 – 20mA Output OFF ON OFF
2 – 10V Output ON OFF ON
Input 20mA / 5V / 10V to operate to fully open (CCW) position OFF
Input 20mA / 5V / 10V to operate to fully closed (CW) position ON
Loss of signal, drive to fully open (CCW). ON OFF ON
Loss of signal, drive to fully closed (CW). ON ON OFF
Loss of signal, drive to fully closed (CW). OFF OFF ON
Loss of signal, drive to fully open (CCW). OFF ON OFF
Loss of signal, stay in place. n/a ON ON
a. Input Signal Setting (switches 1 – 2)
Input Signal Switch State
4 – 20 mA 1 = ON, 2 = OFF
1 – 5 V 1 = OFF, 2 = OFF
2 – 10 V 1 = OFF, 2 = ON
Actuator power must be cycled following any adjustment.

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FSE Series Electric Actuator
Installation & Maintenance Manual
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b. Output Signal Setting (switches 3 – 5)
Output Signal Switch State
4 – 20 mA 3 = OFF, 4 = ON, 5 = OFF
2 – 10 V 3 = ON, 4 = OFF, 5 = ON
c. Fail Position Setting (switches 6 – 8)
Switch S6 ON Switch S6 OFF
20mA / 5V / 10V command is for fully closed (CW)
position
20mA / 5V / 10V command is for fully open (CCW)
position
Input Signal Fully Open (90°) Fully Closed (0°)
4 – 20 mA 4 mA 20 mA
1 – 5 V 1 V 5 V
2 – 10 V 2 V 10 V
Input Signal Fully Open (90°) Fully Closed (0°)
4 – 20 mA 20 mA 4 mA
1 – 5 V 5 V 1 V
2 – 10 V 10 V 2 V
Lost Signal Position Switch State
Fully Open (90°) 7 = OFF, 8 = ON
Fully Closed (0°) 7 = ON, 8 = OFF
In Place 7 = ON, 8 = ON
Lost Signal Position Switch State
Fully Open (90°) 7 = ON, 8 = OFF
Fully Closed (0°) 7 = OFF, 8 = ON
In Place 7 = ON, 8 = ON
The input signal type is set by switches 1 and 2. Switch 6 is used to set the corresponding relationship
between the value of the input signal and the operation direction of the actuator.

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FSE Series Electric Actuator
Installation & Maintenance Manual
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4. P4 Terminal
Contact Rating: 3A / 250V
P4 is a contact for alarm status. If the microprocessor detects that the actuator has not reached the preset end of
travel stop within 15 seconds, the P4 contact is activated. It can connect with an alarm input or similar devices for
warning signal.
5. Sensitivity Switch (SW2)
Switch SW2 is to adjust the sensitivity of the actuator. When the sensitivity setting is higher, the resolution of the
input signal will be higher, and the deadband will be smaller. Excessively high sensitivity may cause the actuator
to continuously hunt for position and eventually lead to the motor overheating, which may cause the internal
thermostat to trip, thus disabling movement. If the actuator has trouble settling to position, the sensitivity setting
should be reduced.
S W2
1
2
3
4
5
6
7
8
9
0
 1 = Highest Sensitivity
 0 = Lowest Sensitivity
 3 = Factory Default