VPro WT User manual

OSVWT20A-EN
1/12
Instruction manual
Electric
Actuated
Butterfly Damper
WT
SP-1379
Please read this manual before installation and use.
GENERAL
It composed of wafer type butterfly damper and high-power electric actuator.
(Proportional control)
Actuator
AEX : For AC power. It corresponds to various control
input signals.
PEX : For AC / DC power. High speed response control
and high reliability offers by
using a brushless DC motor.
Damper
WT type For Wafer (JIS 5K)
Damper body and disk made by precision processing
ensure reduced leakage from damper seat.
This series can be used at fluid temperatures ranging
from -40 °C to +550 °C.
PRODUCT CODE
WT type (Without seat) W T 2 T G 0 - - -
(With SUS316 seat) W T 2 T G S - - -
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11)
(1) Actuator
AEX
PEX
(2) Damper
WT
(3)
Voltage
1 : 100 / 110 V AC
2 : 200 / 220 V AC
6 : 100 to 240 V AC
0 : 24 V DC
(4) Sizing code
0 : Standard
1 : Light
2 : Heavy
(5) Connection
2 : JIS 5K
(6) Body material
T : SCS13A
(7) Packing material
G : Expansion graphite
(8) Seat material
0 : (Zero) None
S : SUS316
(9) Size [mm]
ex. 80 A 080
(10) Option
L: Auxiliary limit switch
EA : Alarm output board
EI : 4 to 20 mA
Indication signal board
(11) Operation mode
Nil : Mode A
J : Mode B

OSVWT20A-EN
2/12
DAMPER SPECIFICATIONS
Water Oil Air, Gas Steam Chemicals Sea water Slurry Negative pressure
Damper type WT (Without seat) WT (With SUS316 seat)
Design 2-way, Wafer 2-way, Wafer
Connection JIS Flanges 5K JIS Flanges 5K
Fluid
Max pressure 20 kPa 20 kPa
Size [mm] 040 to 250 300 to 400 040 to 400
Material Body SCS13A SCS13A
Disk SUS420J2 SUS420J1 SUS410S / SUS420J2
Seat None SUS316
Stem seal Packing Expansion graphite Expansion graphite
PRESSURE & TEMPERATURE RATING
Temperature range : -40 to 600 °C
Option XT: High ambient temperature
more than +250 °C or less than -20 °C.
SEAT LEAKAGE VOLUME
Damper size [mm] Remarks
WT-2TG0 (Without seat) 040 to 050 Less than 2 % of rated Cv.
065 to 400 Less than 1 % of rated Cv.
WT-2TGS (With SUS316 seat) 040 Less than 1 % of rated Cv.
050 Less than 0.5 % of rated Cv.
065 Less than 0.2 % of rated Cv.
080 to 400 Less than 0.1 % of rated Cv.
INHERENT FLOW CHARACTERISTIC
Cv value (%)
D
amper
opening (%)
Range ability 50:1
Max

OSVWT20A-EN
3/12
ELECTRIC ACTUATOR SPECIFICATIONS
AEX type
Actuator type
(:Voltage code) AEX-120- AEX-360- AEX-700- AEX-02K- AEX-06K-
Voltage 100 / 110 AC V ±10 % 50/60 Hz (Code: 1)
200 / 220 AC V ±10 % 50/60 Hz (Code: 2)
Rated torque [Nm] 12 36 70 200 600
Operation time [s] 30 / 25
(50/60 Hz)
36 / 30
(50/60 Hz)
72 / 60
(50/60 Hz)
77 / 64
(50/60 Hz)
77 / 64
(50/60 Hz)
Power consumption [VA] 9.5 13 45 220
Motor Synchronous motor (Triac control) Reversible motor (Triac control)
Overload protection Timer
Method of operation Proportional control
Input signal 4 to 20 mA / 1 to 5 V (Input resistance: 250 ) (Standard)
0 to 5 V / 0 to 10 V / 2 to 10 V (Input resistance: more than 1 M )
0-135  to 0-1 k Potentiometer input (Applied voltage: 5 V DC)
Operation *¹ [Mode A] SHUT by decreased signal (Standard)
OPEN by increased signal
[Mode B] SHUT by increased signal
OPEN by decreased signal
[Forced open / shut] It takes priority over the input signal.
C-S is ON SHUT. (Common in mode A / B)
C-O is ON OPEN.
Indication signal 0 mA : SHUT 1 mA : OPEN (External load resistance: less than 3 k)
Common in mode A / B
Override switch It takes priority over the input signal. Common in mode A / B
Dry contact / Transistor, Open collector. (Input signal current: 6 mA 15V DC)
Operating range SHUT: 0 to 40% OPEN: 50 to 100%
Resolution Less than 0.2%
Duty cycle 100 %
Ambient temperature -20 to 55°C
Space heater 2 W
Manual operation Manual shaft
Enclosure Equivalent to IP65 (IEC 60529)
Housing material Aluminum alloy die cast (acrylic resin baking finish)
Wire connection Terminal Block: M3, Ground terminal: M3
Conduct port 2-G1/2 Attachments: Cable gland (for 6 to 12 mm cable), plug.
*
¹
Change by DIP switch.
(
Standard
Potentiometer input
or 0 to 5 V / 0 to 10 V / 2 to 10 V
)
*
²
Change by DIP switch.
(
Standard
M
ode
B)

OSVWT20A-EN
4/12
ELECTRIC ACTUATOR SPECIFICATIONS
WIRING
AEX Setting with DIP SW
• Operation
Mode A Mode B
• Input signal
4 to 20 mA / 1 to 5 V
0-135  to 0-1 k Potentiometer input / 0 to 5 V
0 to 10 V 2 to 10 V
Note • Input signal circuit is non-isolated. Do not connect DC (minus) wire to other DC (minus) common.
• Do not adjust the "O-L" and "S-L" trimmer. It is adjusted at the factory.
ADJUSTMENT OF ACTUATOR
AEX Dead band
Turn the trimmer clockwise for wide the dead band as
necessary. It is useful to prevent the hunting reaction of
actuator. *Each trimmer on a built-in control board.
Operating range
Turn clockwise and adjust valve / damper to open side.
• Adjust the closed position by SHUT trimmer.
• Adjust the open position by OPEN trimmer.
-
+
O
S
C
B
R
W
T2
T1
+
-
R
W
B
R
W
C
B
R
+
-
+
-
DIPSW
4
3
2
1
ON OFF
M
SHUT
OPEN
D.B.
ZERO
SPAN
Override
Override
AlarmLED
(S-L)
(O-L)
Motor
Pote
ntio
meter
1KΩ
Groundterminal(M3)
Indication
signal
0to1mA.
Voltage
100/110VAC.
200/220VAC.
SHUTSW
OPENSW
Inputsignal
4to20mA.
1to5V.
Inputsignal
0to5V.
0to10V.
2to10V.
Resistance
input
0-135Ω
to
0-1KΩ Operation
range
Deadband
Indication
signal
Adjustmenttrimmer
Positionerboard
4
3
2
1
ON OFF
4
3
2
1
ON OFF
4
3
2
1
ON OFF
4
3
2
1
ON OFF
4
3
2
1
ON OFF
4
3
2
1
ON OFF
DIPSW 4
3
2
1
ONOFF
ZERO
SPAN
SHUT
OPEN
D.B.
O-L
S-L
D.B.
SHUT OPEN
SPANZERO
T1 T2 W R B C S O + -
Dead
Band
wide
Operation
range
open open
Indication
signal
decrease increase
Positionerboard

OSVWT20A-EN
5/12
ELECTRIC ACTUATOR SPECIFICATIONS
PEX type
Actuator type
(:Voltage code) PEX-120- PEX-300- PEX-700-
Voltage 100 to 240 V AC ±10 % 50/60 Hz (Code: 6)
24 V DC +20 % ~ -10 % (Code: 2)
Cannot use a half or full-wave DC power supply.
Rated torque [Nm] 10 21 50
Operation time [s] 2.5 to 4 (Max 12) 6 to 9 (Max 12) 12 to 18 (Max 12)
The operation time is the time when it is operated by the override switch.
Operation time with the override switch cannot be adjusted with S.C. trimmer.
At factory shipment, the S.C trimmer is set to the fastest position.
Power consumption [VA] AC power 80
DC power 50
Motor Brushless DC motor (PWM Control)
Overload protection Current limiter
Method of operation Proportional control
Input signal 4 to 20 mA / 1 to 5 V (Input resistance: 250 )
Operation *¹ [Mode A] SHUT by decreased signal (Standard)
OPEN by increased signal
[Mode B] SHUT by increased signal (Option: J)
OPEN by decreased signal
[Forced open / shut] It takes priority over the input signal.
C-S is ON SHUT. (Common in mode A / B)
C-O is ON OPEN.
Indication signal 0 mA : SHUT 1 mA : OPEN (External load resistance: less than 3 k)
Common in mode A / B
Override switch It takes priority over the input signal. Common in mode A / B
Dry contact / Transistor, Open collector. (Input signal current: 6 mA 15V DC)
Operating range SHUT: 0 to 40 % OPEN: 50 to 100 %
Resolution Less than 0.2 %
Duty cycle 100 %
Ambient temperature -20 to 55 °C
Space heater 3 W
Manual operation Manual shaft
Enclosure Equivalent to IP65 (IEC 60529)
Housing material Aluminum alloy die cast (acrylic resin baking finish)
Wire connection Terminal Block: M3, Ground terminal: M3
Conduct port 2-G1/2 Attachments: Cable gland (for 6 to 12 mm cable), plug.
*
¹
Change by DIP switch.
(
Standard
M
ode
B)

OSVWT20A-EN
6/12
ELECTRIC ACTUATOR SPECIFICATIONS
WIRING
PEX
Setting with DIP SW
• Operation
Mode A (Standard) Mode B
Note • Do not adjust the "O-L" and "S-L" trimmer. It is adjusted at the factory.
• Minus terminal can be used in common, but T2 terminal for DC power supply is not a common
terminal.
ADJUSTMENT OF ACTUATOR
PEX Dead band
Turn the trimmer clockwise for wide the dead band as
necessary. It is useful to prevent the hunting reaction of
actuator. *Each trimmer on a built-in control board.
Operating range
Turn clockwise and adjust valve/damper to open side.
• Adjust the closed position by SHUT trimmer.
• Adjust the open position by OPEN trimmer.
Operating speed (Speed control)
Slow by turn the S.C. trimmer counterclockwise.
Fast by turn the S.C. trimmer clockwise.
Note) The operation time is the time when it is operated by the
override switch.
Operation time with the override switch cannot be
adjusted with S.C. trimmer.
At factory shipment, the S.C trimmer is set to the fastest
position.
SHUT
OPEN
D.B.
ZERO
SPAN
S.C.
DIPSW
ON 2 1
-
+
O
S
C
I+
I-
T2
T1
(+)
(-)
(+)
(-)
(+)
(-)
(-)
M
Non-contact potentiometer
Motor
(S-L)
(O-L)
Operating
range
Deadband
Indication
signal
Speedcontrol
Groundterminal(M3)
Adjustmenttrimmer
Positionerboard
Indication
signal
0to1mA.
SHUTSW
Override
Override
OPENSW
Inputsignal
4to20mA.
1to5V.
Voltage
24VDC.
100to
240VAC.
AlarmLED
ON
2
1ON
2
1
DIPSW 2
1
ONOFF
SHUT OPEN
SPANZERO
ZERO
SPAN
S.C.
SHUT
OPEN
D.B.
O-L
S-L
D.B.
S.C.
T1 T2 I- I+ C S O + -
Operation
range
open open
Indication
signal
decrease increase
Dead
Band
wide
Speed
control
Positionerboard

OSVWT20A-EN
7/12
ELECTRIC ACTUATOR SPECIFICATIONS
OPTIONAL PARTS
Specifications Code No. AEX PEX Remarks
Input signal
and operation 4 to 20 mA or 1 to 5 V Nil Mode A (Standard)
J Mode B
0-135  to 0-1 k Potentiometer input
or 0 to 5 V
F Mode A
K Mode B
0 to 10 V G Mode A
N Mode B
2 to 10 V H Mode A
M Mode B
Auxiliary limit switch (Select limit switch depending on the load) L0 For standard signal
L2 For micro load signal
Alarm output board EA EI and EA
cannot be used together.
4 to 20 mA Indication signal board EI
*Auxiliary limit switch: Please refer to the specifications.
WIRING (OPTION)
L0 / L2 Auxiliary limit switch EA Alarm output board EI 4 to 20 mA Indication signal board
At CLOSE side, LC and LS is ON.
At OPEN side, LC and LO is ON.
ON point can be reset by adjusting
the cam.
NO : Normally open
NC : Normally closed
Alarm SW will be ON, when
overload protector works.
Error 11 and 12 is ON.
Normal 11 and 13 is ON.
Cannot be used with EI option.
EI option board output an isolated
indication signal from the plus and minus
terminal with 4 to 20 mA by AEX / PEX
positioner board.
com.
LO
LS
OLS
SLS
LC
SHUToutput
OPENoutput
Actuatorwiring
OLSSLS
OFF
ON
SHUT OPEN
13
12
11com.
NO
NC
Actuatorwiring
Alarmoutput
board ZERO
SPAN
+
--
+
4〜20mA
Actuatorwirin:PEX,AEX
Actuator
Positionerboard
4〜20mA
EIOption
Indication
signal
Indication
signal
Trimmer

OSVWT20A-EN
8/12
ELECTRIC ACTUATOR SPECIFICATIONS
DIMENSIONS
AEX
PEX
Parts name
1 Body 4 Control board 7 Drive gear 10 Rubber packing
2 Motor cover 5 Terminal block 8 Drive shaft
3 Motor 6 Potentiometer 9 Manual shaft
2
3
5
4
6
7
1
10
1
2
4
5
3
6
9
8
1
9
89
8
7
7
2
3
4
5
6
2-G1/2
6360 75
75130
195
160
97
122
60
194
115
232
145
102
1
9
87
2
101010
3
4
5
6
129
102
2-G1/22-G1/2
60
122
60
2-G1/2 220
175
AEX-06K
AEX-02K
145
AEX-700
145
AEX-120, 360
1
9
87
1
9
87
4
22
1010
33
66
5 4 5
145
102
129
102
122
60
122
60
60 2-G1/2 60 2-G1/2 145
PEX-700
145
PEX-120, 300

OSVWT20A-EN
9/12
INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS
HANDLING & STORAGE
HANDLING
Proper care in handling the damper should be taken
to prevent damage. Do not drop or throw it.
STORAGE
Store the actuator in the protected area from dust,
moisture, and direct sunlight. If possible, should be
kept in the original packaging.
CHECKING
• Check the product code, power supply, and voltage
before installation.
• Make sure that the bolts are not loose.
• DIP switch be sure perform set up before a power
supply injection.
Should not change an unnecessary switch.
INSTALLATION
PRECAUTIONS
• Before installing, clean pipe and damper ends.
Make sure they are free of dirt, dust and etc.
• The butterfly damper should be piped upstream of
the elbow. When piping downstream from the elbow,
considered a straight line that is at least five times the
length of the pipe.
• The damper stem should be mounted perpendicular
to the flow for biased fluid.
• Disc interference may also occur when damper is
installed in pipeline with smaller than normal inside
diameter such as thick wall pipe, or lining pipe.
Suitable corrective measurement must be taken
(taper boring the pipe or pipe liner, etc.)
PIPING FLANGES
• It has a flow direction. Install the damper accordingly.
• Gasket should be selected appropriately to suit the
fluid, pressure and temperature.
Use spring washer to prevent from decreasing surface
pressure gasket when the temperature change
happens frequently.
• Wafer type ball damper is put between two seats of
flanged-end and tightened with long bolts.
• Center the damper to the flanges accurately.
• After installation of the damper, operate the damper to
make sure the disk does not touch any part of the
piping.
• Tighten all bolts using crossover method to load the
joint evenly.
ENVIRONMENT
• Do not install in place where corrosive gas is present
or where vibration is heavy (0.5 G or more).
• When radiant heat causes the surface temperature of
the control unit to exceed 55°C, provide an
appropriate shielding plate.
• If there is a possibility that the fluid and drive part
freeze, please take measures to prevent freezing.
POSITIONING
Should be positioned through 90° upward from
horizontal. Provide space around the product to allow
manual operation, inspection and replacement work.
Maintenance space for upper part of actuator.
AEX PEX More than 105 mm
AEX (02K / 06K) More than 120 mm
CAUTION AFTER PIPING
Until the wiring is completed there must be no
condensation or flooding in the interior of the actuator,
after piping. Protective caps on the cable gland are
not waterproof.
INSULATION WORK
• For maintenance of gland packing, insulation should
be below the ground part.
• The upper part of the ground plate part is a heat
dissipation part, do not insulate it.
TIGHTEN THE GLAND NUTS
• Check that there is no leakage from the gland
packing.
• If it leakage, tighten gland nuts by alternately.
Do not over-tighten the gland nuts.
Recommended torques [Nm]
Size [mm] Torque
040 to 065 1
080 to 125 2
150 to 300 5
350 to 400 8
Slow Fast Slow Fast
Gland nut
Gland plate
Stem

OSVWT20A-EN
10/12
INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS
WIRING
PRECAUTIONS
• Remove the actuator cover before wiring.
• Two G1/2 electrical connections are provided with a
cable gland and plug. Usable cable size is 6 to 12
mm.
• When using a flexible tube, dew condensation may
occur inside the actuator due to respiration from the
inside of the tube and malfunction may result. Seal the
flexible tube connector part with a sealant.
• Sealants that affect the electrical contacts should not
be used inside the electric actuator.
• If long distance wiring or low voltage operation, check
that terminal voltage is in the proper range.
• AEX type input signal circuit is non-isolated.
Do not connect DC (minus) wire to other DC (minus)
common.
• PEX type minus terminal can be used in common, but
T2 terminal for DC power supply is not a common
terminal.
CONNECTION
• Do not wiring outdoors on a rainy day.
• Check the power supply and voltage.
Connect the signal as shown in the wiring diagram.
Do not connect unnecessarily terminal.
• Check whether the MODE change DIP SW on a
circuit board substrate is set up correctly.
• When wiring, if wiring of a signal is mistaken, it will not
operate correctly. Contact us when you use two
damper or more by one controller or indicator.
• Actuator should be electrically grounded.
Use the terminal marked ( ) inside the actuator.
PREVENT DEW CONDENSATION
• When installing the cover after wiring, perform the bolt
by the temporary tightening procedure and the
permanent tightening procedure to tightly and
securely tighten the rubber packing so that water does
not enter from the outside.
• Tighten the cable gland nut so that there is no leakage
from the wire entrance.
CONTROL
INPUT SIGNAL
• Use shielded wire for signal wiring where high level
noise is generated or when the wiring distance is long.
• Control with a 1 to 5 V input signal becomes an input
resistance 250 . Provide a voltage that can safely
20mA or more than.
DC POWER SUPPLY
• Cannot use a half or full-wave power supply.
• Consider an inrush current of motor.
(It is 1.5 to 3 times of consumed current.)
• When using a DC voltage, be selected the wire
thickness by the wiring distance.
• Do not use power supply that require more than
1 second with rise and fall time.
INPUT SIGNAL AND OPERATION MODE
The input signal and operation mode are set as
follows. (Factory shipped)
Input signal 4 to 20 mA or 1 to 5 V
Operation mode Mode A
Operation SHUT by decreased signal.
OPEN by increased signal.

OSVWT20A-EN
11/12
INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS
OPERATION
TESTING
• Make sure that power supply voltage is correct. Also
check operating position, wiring, speed and signals.
• During trial operation, check that damper movement
and output signal are correct.
CONFIRM THE OPERATING CONDITION
• Adjust fluid condition, controller setting, sensor etc. so
that stable control is achieved.
• When used in an unstable control state, the life of the
actuator and the damper will be shortened.
• The desired control state is stable at the target value.
Adjust the PID setting value of the controller when
overshooting the target value greatly, when not
converging for a long time or hunting operation. Also,
when the time delay is large, please consider the
sensor position.
ATTENTION
• Do not change an unnecessary dip switch.
• Keep power supplied for built-in space heater to
prevent condensation inside actuator.
• Do not touch the moving parts of actuator in
operation.
• Never put anything on the actuator or make it into a
foothold.
MANUAL OPERATION
PRECAUTIONS
• Be sure to turn off the power before manual operation.
• Operate manually with reference to the opening
degree label. Do not turn beyond the fully open / fully
closed position. Operation failure may occur during
automatic operation.
THE WAY OF OPERATION
AEX / PEX AEX (06K)
Turn manual shaft slowly
with an adjustable wrench.
Remove the cap.
Turn manual shaft
solely with M8 hexagon
socket screw keys.
Before automatic operation, be sure to remove the
wrench.
MAINTENANCE
• To prevent electric shock, be sure to turn off the power
when removing the actuator cover.
• Do the routine maintenance at least once in half a
year.
Inspection items
• Confirm operation of opening and closing.
• Confirm that an actuator is not hot excessively.
• Confirm existence of abnormal noise and
vibration during operation.
• Confirm whether screws are loose or not.
• Confirm that water or condensation no remains
in the actuator.
• Confirm the fluid temperature or pressure.
• Confirm the leak from damper stem.
• Confirm the bolt tightening torque.
Manual Shaft

OSVWT20A-EN
Document is subject to change without notice.
NIPPON VALVE CONTROLS, INC.
1-21-19 Meieki minami, Nakamura-ku, Nagoya 450-0003 JAPAN
TEL: [phone] FAX: [phone]
12/12
INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS
TROUBLE SHOOTING
Problem Cause Solution
Actuator
does not
move.
Faulty wiring. Correct the wiring.
Voltage and
input signal are
not coming.
Check the voltage and
input signal.
Incorrect
voltage.
When it's burned out by
excess voltage, replace
the actuator.
Connection or
wiring is not
correct.
Correct the miswiring
and misconnection.
Be careful not to
mistake the plus and
minus of wiring.
Short the
circuit, contact
failure.
Review wires and
connection.
Motor is too
old.
Replace the actuator.
Repair in our factory.
Operation is
unstable.
Excess surge
or voltage was
applied.
• Replace the control
board or limit switch.
(Repair in our factory)
• Replace the actuator.
Rainwater
entered the
actuator.
• Dry the inside.
• Replace the actuator.
Added high
harmonics
noise from an
inverter.
Attachment a filter for
each inverter maker
option.
Effect of high
level noise.
Use the shielded wire
and ground the wiring.
Separate signal wire
from power line.
Problem Cause Solution
Stop in the
mid position.
(Input signal
1 to 5 V)
Signal voltage
source
capacity
shortage.
Use a voltage source
that can be made to
flow more than 20 mA.
Please contact us.
Stop in the
mid position.
There is a
foreign object
in the damper.
Remove a foreign
object.
Damper is
distorted.
Replace the damper.
Overload
protector runs
because of
over-torque.
Motor protection circuit
returns by the signal of
operation of an
opposite direction. Turn
on the power again.
Alarm LED
is lit.
Leakage
from damper
gland
Gland packing
is worn or
distorted.
Tighten the gland nut.
Replace the gland
packing.
For more information contact
NIPPON VALVE CONTROLS, INC. for consultation.