| Вид документа | Технічний паспорт |
|---|---|
| Виробник | JCI |
| Моделі | VA-7700-1001, VA-7700-1003, VA-7740-1001, VA-7740-1003, VA-7706-1001, VA-7746-1001, VA-7700-8201, VA-7700-8203 |
| Група обладнання | automation |
| Мова документа | англійська |
| Розмір файлу | 0.9 МБ |
Про документ
A compact, non spring return, synchronous motor driven electric valve actuator for valves in heating, ventilation and air conditioning applications. Available for floating (3-point) control or proportional control with 0-10 V position feedback signal, with a stroke capability of 8 mm to a maximum 20 mm and 500 N nominal force. It can be combined with VG7000, VG9000 and VGS8… valves and ordered as a separate unit or factory-fitted valve/actuator combination.
Ключові дані
| Nominal force | 500 N ± 20% |
|---|---|
| Stroke | 20-mm maximum |
| Control signal | 0...10 VDC or 0(4)...20 mA |
| Feedback signal | 0…10 VDC |
| Supply voltage | 230 V ± 15 % / 24 V ± 15% 50/60 Hz |
| Enclosure protection | IP54 (IEC 60529) |
| Ambient operating condition | -5 to +55, °C, 10…90% RH non condensing |
| Net weight | 0.8 kg |
Застосування
- Floating (3-point) control with controllers with PAT (Positioning Adjusting Time) output, in parallel operation
- Proportional control with controllers with 0…10 V output, in parallel or sequential operation (positioner with selectable starting point and span, direct and reverse action)
- Combination with VG7000 Series threaded valves (DN 15...50), VG9000 Series flanged valves (DN 15...50), VGS8... Series male threaded valves (DN 15... 40)
Особливості
- Self adjusting proportional actuators — easy, quick and precise commissioning/servicing
- Column of 5 LEDs for visualisation of actuator stroke position and status
- Optional models with mechanical manual override; manual contact micro switch on all models with manual override signals automatic/manual mode
- IP54 protection class
- Unique "C" shaped yoke design allowing lateral mounting, reducing vertical space over the valve
- Positioner with selectable starting point and span, direct and reverse action modes — enables sequence control
- Magnetic clutch provides constant output force for valve close-off and protects motor in stall conditions
- "Control-signal failure" stem pre-set position (extended/retracted), selectable in-situ via DIP-switches (not with 0…20 mA control)
- Auto-calibration procedure for standard and freely defined control signal ranges
- Electrical manual override via calibration buttons (DIP switch 7)
Технічні дані
| Parameter | Value |
|---|---|
| Supply voltage (floating 230 V models) | 230 V ± 15 %, 50/60 Hz |
| Supply voltage (floating 24 V models) | 24 V ± 15%, 50/60 Hz |
| Supply voltage (proportional models) | 24 V ± 15%, 50/60 Hz |
| Control signal | Positioner Adjustment Time (PAT) / 0...10 VDC or 0(4)...20 mA |
| Feedback signal | 0…10 VDC |
| Manual override (VA-770x) | None (floating) / Electrical (proportional) |
| Manual override (VA-774x) | Mechanical (floating) / Electrical + Mechanical (proportional) |
| Type of motor | Synchronous / reversible |
| Max. power consumption, active | 3.5 W (230 V) / 2.6 W (24 V floating) / 3.2 W (24 V proportional) |
| Max. power consumption, apparent | 3.9 VA / 2.6 VA / 4.7 W |
| Input impedance (positioner) | 100 kΩ min. (0…10 VDC) / 250 Ω (0(4)…20 mA) |
| Resolution | 0.5 % (up to 200 steps on 20 mm stroke) |
| Feedback ratings | max 2mA at 0..10 VDC, 5 kΩ |
| Manual contact micro-switch max. load | 2A Resistive 1A Inductive, 24 VAC (24 V switch); 2A Resistive 1A Inductive, 230 VAC only for VA-7740-1003 |
| Force | 500 N ± 20% |
| Stroke | 20-mm maximum |
| Nominal full stroke time 8 mm | 84 s (50 Hz) / 70 s (60 Hz) |
| Nominal full stroke time 13 mm | 137 s (50 Hz) / 114 s (60 Hz) |
| Nominal full stroke time 19 mm | 200 s (50 Hz) / 167 s (60 Hz) |
| Enclosure protection | IP54 (IEC 60529) |
| Cover material | Self extinguishing ABS + polycarbonate PC |
| Wiring cover material | Polycarbonate |
| Hand wheel material | Polyamide PA66 |
| Yoke material | Die cast aluminium |
| Plates material | Zinc plated steel |
| Gears material | Acetylic resin |
| Ambient operating condition | -5 to +55, °C, 10…90% RH non condensing |
| Ambient storage condition | -20 to +65 °C, 10…90% RH non condensing |
| Wiring | 2.5 mm² terminal block |
| Wiring entrance | (2) M20x1.5 cable conduit adapters – for separated power/accessories wiring access (cables from Ø6-mm to Ø12-mm) |
| Net weight | 0.8 kg |
| Life time | Tested for 250,000 full cycles |
Варіанти замовлення
For VG7000 and VG9000 Series Valves:
- VA-7700-1001 — 24 VAC, no manual override (floating)
- VA-7700-1003 — 230 VAC, no manual override (floating)
- VA-7740-1001 — 24 VAC, mechanical manual override (floating)
- VA-7740-1003 — 230 VAC, mechanical manual override (floating)
- VA-7706-1001 — 24 VAC, electrical manual override (proportional)
- VA-7746-1001 — 24 VAC, electrical and mechanical manual override (proportional)
For VGS8… Series Valves:
- VA-7700-8201 — 24 VAC, no manual override (floating)
- VA-7700-8203 — 230 VAC, no manual override (floating)
- VA-7740-8201 — 24 VAC, mechanical manual override (floating)
- VA-7740-8203 — 230 VAC, mechanical manual override (floating)
- VA-7706-8201 — 24 VAC, electrical manual override (proportional)
- VA-7746-8201 — 24 VAC, electrical and mechanical manual override (proportional)
Factory-fitted valve/actuator combination: add "+M" to the end of the actuator ordering code (e.g. VA-7746-1001+M).
Допуски та стандарти
- IP54 (IEC 60529)
- EMC Directive 2004/108/EC
- Low Voltage Directive 2006/95/EC
Позиції каталогу з цим документом
Текст документа
PB_VA-7700_Electricl Valve Actuators_02 2011
VA-7700 Series
Electric Valve Actuators
The VA-77xx Series synchronous motor driven actuator, for
valves in heating, ventilation and air conditioning applications,
is available for floating (3-point) control or proportional control
with 0-10 V position feedback signal.
It provides a stroke capability of 8 mm to a maximum 20 mm.
This compact, non spring return actuator has a 500 N nominal
force and responds to a variety of input signals.
The actuator can be combined with VG7000, VG9000
and VGS8… valves in accordance with the maximum
close-off pressure ratings specified (see pertinent valve
product bulletins).
They can be ordered as a separate unit or as a factory fitted
valve / actuator combination.
■■Self adjusting proportional actuators
Easy, quick and precise commissioning servicing
■■Column of 5 Light Emitting Diodes
Allows easy visualisation of actuator stroke position and of the actuator status
■■Optional models with mechanical manual override
Allows manual positioning independent of the power supply
■■Manual contact micro switch on all models with manual override
Signals actuator mode status (automatic or manual) to external supervisory system.
■■IP54 protection class
Allows installation in a wide range of environments
■■Unique “C” shaped yoke design
Allows lateral mounting of the actuator reducing the vertical space over the valve needed for
installation.
■■Positioner with selectable starting point and span, direct and reverse action modes
Enables sequence control
■■Magnetic clutch
Provides constant output force for close-off of valves, and protects motor in stall conditions
■■“Control-Signal failure ” stem to pre-determined position
Actuator pre-set position after a control signal failure (extended/retracted), is selectable in-situ
PB_VA-7700_Electricl Valve Actuators_02 2011
Ordering Codes
For VG7000 and VG9000 Series Valves: For VGS8… Series Valves:
Device code Power supply Manual override Device code Power supply Manual override
Floating models (3-point) Floating models (3-point)
VA-7700-1001 24 VAC None VA-7700-8201 24 VAC None
VA-7700-1003 230 VAC None VA-7700-8203 230 VAC None
VA-7740-1001 24 VAC Mechanical VA-7740-8201 24 VAC Mechanical
VA-7740-1003 230 VAC Mechanical VA-7740-8203 230 VAC Mechanical
Proportional models (0…10 VDC / 0 (4)…20mA) Proportional models (0…10 VDC / 0 (4)…20mA)
VA-7706-1001 24 VAC Electrical VA-7706-8201 24 VAC Electrical
VA-7746-1001 24 VAC Electrical and VA-7746-8201 24 VAC Electrical and
Mechanical Mechanical
These actuators can be combined with the following valve These actuators can be combined with the following valve
ranges: ranges:
• VG7000 Series Threaded Valves • VGS8... Series Male Threaded Valves
Female and male threaded valves Male threaded valves
VG7 T all body types DN 15...50 VGS8 W1N 3-way DN 15... 40
2-Way DN 15... 50
• VG9000 Series Flanged Valves
Flanged valves
VG9 S1 all body types DN 15...50
Ordering procedure
The actuator can be ordered as a separate unit or a factory fitted
valve-actuator combination. Should the latter be requested,
please just add “+M” to the end of the actuator ordering code.
For Example:
Item 1 VG7203NT (valve body)
Item 2 VA-7746-1001 (actuator)
Alternatively, to order a factory fitted combination
Item 1 VG7203NT (valve body)
Item 2 VA-7746-1001+M (actuator)
2
PB_VA-7700_Electricl Valve Actuators_02 2011
Operation
Floating models Control signal failure pre-set position■
(not functional with 0…20 mA control selected)
Connections Actuator Stem
A control-signal failure on proportional models will cause the
1-2 Extends
actuator to automatically move the stem to a (via DIP-switches)
1-3 Retracts pre-selected position (100% extended or 100% retracted).
Proportional models■ Auto Calibration procedure with standard
(0…10 VDC or 0(4)…20 mA) input signal ranges.
The VA-77x6 provides a proportional stroke corresponding to the The standard control signals are selected by setting DIP switches
control signal. 3 and 4 switch (see paragraph "DIP switch settings").
It is recommended to set the actuator to the desired control signal
Following control signals are defined as standard:
and action before fitting to the valve (see paragraph "DIP switch
0…10 VDC settings").
0…5 VDC Power must be connected before the auto-calibration cycle can
be started.
5…10 VDC
0…20 mA
Procedure: Actuator is mounted on valve.
• Verify that with the stem fully retracted, there is a minimum
4…20 mA distance of 1 mm between the top of the actuator stem nut and
the stem guide bush in the actuator motor housing base plate.
Input Position at If necessary correct the distance by adjusting the actuator /
Action■ control Actuator control-signal valve stem connection.
(DIP switch set) signal Stem failure *
• To start the auto calibration cycle, push both calibration buttons
Direct (DA) Increases Extends Selectable* for at least 5 seconds. The actuator will make a full cycle to
Decreases Retracts Selectable* detect the stem extended and retracted limits.
Reverse (RA) Increases Retracts Selectable* Calibration buttons
Decreases Extends Selectable*
* "Signal failure" position pre-set does not operate when 0…20
mA control is selected.
The action mode, DA (direct acting) and RA (reverse acting)
> 5 sec
is set through the DIP switches (see paragraph "DIP switch
settings").
The actuator control signal has a buffer zone, at each end of the
span, of 0.3 V or 0.3 mA.
This ensures definite valve close-off.
During auto-calibration cycle all five
status indication LED flash simultaneusly
• When the auto calibration cycle is completed the LED
stop flashing, the actuator stem moves to the position that
corresponds to the control signal and the five LED indicate the
stem position.
• When the control signal changes the actuator stem moves to
the new position this is indicated by one flashing LED. The LED
stops flashing when the position corresponding to the control
signal has been reached.
Note: When ever the actuator is newly placed on a valve,
auto-calibration must be carried out.
3
PB_VA-7700_Electricl Valve Actuators_02 2011
Auto-calibration procedure for freely defined Position feedback
control signal ranges The position feedback signal is for monitoring the actuator stroke
Non standard control signals for example 2…8 VDC are applied position. It feeds information internally to the positioner and a
by setting the DIP switches 3 and 4 (see paragraph "DIP switch 0-10 VDC signal can supply an external supervisory system.
settings"). Electrical manual override
It is recommended to set the actuator to the desired control-signal To select electrical manual override DIP switch 7 must be
type and action before fitting to valve (see paragraph "DIP switch switched to “on” (right hand position; see paragraph "DIP
settings"). switch settings"). The actuator stem can now be driven via the
Power must be connected before the auto-calibration cycle can calibration buttons. The upper button retracts the stem and the
be started. It is recommended that the signal span is always lower button extends the stem. The stem remains in the position
set superior or equal to 3V or 6 mA in order to keep acceptable at which the button is released. Switch DIP switch 7 to “off” to
proportional characteristics. return to automatic drive. The five LED indicate the stem position.
Procedure: (Actuator is mounted on valve) Mechanical manual override
• Verify that with the stem fully retracted, there is a minimum To select manual override turn the override knob from “AUT” to
distance of 1 mm between the top of the actuator stem nut and “MAN”, the hand wheel is then engaged and power disconnected
the stem guide bush in the actuator motor housing base plate. internally. Turning the hand wheel clockwise extends the stem
If necessary correct the distance by adjusting the actuator / and anti-clockwise retracts the stem. Turning the override knob to
valve stem connection. AUT disengages the hand wheel and reconnects the power.
• The auto calibration cycle is started by pushing both calibration
buttons, on the pcb, simultaneously for at least 5 seconds. WARNING: The auxiliary switches (terminals
The actuator will then make a full cycle to detect the stem 10, 11, and 12) can be used to indicate manual
extended and retracted limits. override or automatic mode.
Calibration buttons
> 5 sec
During auto-calibration cycle all five
status indication LED flash simultaneusly
• Apply one of the control signal values and confirm by
pressing one of the two calibration buttons for 2 seconds
(the 5 LED will illuminate for 5 sec to confirm the setting).
Now apply the second control signal value and again confirm
by pressing one of the two calibration buttons for 2
seconds (the 5 LED will illuminate for 5 sec to confirm the
setting).
• Both the minimum and the maximum control signal values are
stored in the memory of the actuator.
• When the auto calibration cycle is completed the LED
stop flashing, the actuator stem moves to the position that
corresponds to the control signal and the five LED indicate the
stem position.
• When the control signal changes the actuator stem moves to
the new position this is indicated by one flashing LED. The LED
stops flashing when the position corresponding to the control
signal has been reached.
4
PB_VA-7700_Electricl Valve Actuators_02 2011
DIP switches settings (Proportional models only)
The DIP switches are accessed by removing the transparent cover.
1 1
1, 2: Default setting from factory:
VDC mA
Control signal Type All switches in left hand position
2 2
3 1.
0...10
Voltage control
VDC
4 2.
---
3 3.
0...5 VDC 0...10 VDC
4 4.
3, 4, 5: 3 5. ---
Control signal Ranges 5...10
VDC
4 6. Direct Acting mode
---
3 7. Electrical manual override "off"
Free
Range
4 8. "Signal failure position" pre-set = "Up"
5 0...20 mA
---
5 4...20 mA
6: Action 6 DA 6 RA
7: Electrical Manual Override 7 OFF 7 ON
8: Control signal failure
8 Up 8 Down
position preset*
* Does not operate with mA control.
5
PB_VA-7700_Electricl Valve Actuators_02 2011
Standard operating mode Fault mode
The LED display indicates the actuator stem position. If the actuator enters fault mode, the LED will flash as shown.
The LED stops flashing when the position corresponding to the The indication is general and is displayed when:
control signal has been reached.
• Stem comes to unexpected stop; retry cycle fails
to clear problem
• Freely defined control-signal settings are
incomplete or not stored.
• Invalid E2PROM parameters
Specific fault indication
To indicate the specific fault press one of the calibration buttons
for 2 seconds. A fault diagnosis is displayed:
Actuator stem moving Actuator stopped Specific alarm codes displayed by LED
between 40 to 60% of stroke between 40 to 60% of stroke A B C D
Actuator status indication ■
(Proportional models only)
The actuator microprocessor carries out a failure diagnosis when
a failure has been detected.
The actuator status is indicated by the LED display. Diagnosis
LED definition A Calibration interrupted before completion or values missing
B Invalid E2PROM parameters
LED permanently ON
C Actuator stalled due to valve blockage
D Default E2PROM parameters defective
LED flashing
When the problem has been solved, pressing one of the
calibration buttons for at least 5 seconds will cause the actuator
LED permanently OFF
to leave the fault mode and the LED will show present actuator
status. Standard operating mode.
When the micro processor detects that the stem has come to an
unexpected stop it initiates a retry cycle, this is repeated three
times and if unsuccessful the actuator status is switched to fault
mode and the LED indicate a general alarm code. If the problem
is cleared however, the actuator continues normal function.
6
PB_VA-7700_Electricl Valve Actuators_02 2011
Applications: Parallel and sequential operation
Actuators without built-in positioner for Actuators with built-in positioner for
controllers with PAT (Positioning Adjusting controllers with 0…10V output in parallel
Time) output in parallel operation operation
Although synchronous motors have the same running speed 24V
(rate of travel), deviation in travel between motors can 24VAC Com Com 0...10V
accumulate during starts and stops because of varying loads. 0...10 V
0...10 V Com
This deviation depends on the number of on/off cycles. 24 VAC Com
By periodical switching of the actuators to end of travel, 24 VAC
actuators running in parallel can be reasonably synchronous. 1 2 3 4 1 2 3 4 1 2 3 4
Actuator 1 Actuator 2 Actuator 3
24Vac 24Vac 24Vac
Com Up Down The controller 0…10 V output can operate several actuators with
24Vac Down built-in electronic positioner.
The number of actuators that can be linked to a single controller
24Vac Up
depends on the controller’s active power in relation to the
24Vac Com
actuators power consumption.
Each positioner has its own adjustment for starting point between
1 2 3 1 2 3 1 2 3
0…10 V.
Each actuator can have a different input (for instance 0…5 VDC /
Actuator 1 Actuator 2 Actuator 3
5...10 VDC).
Each positioner can be switched for direct or reverse action.
The number of actuators that can be linked to a single controller
depends on the controller’s active power in relation to the
actuators power consumption.
DIP switch setting
Starting End Point ■
Point (Starting Point + Span) Positioner Action
Y1 0.3 V 9.7 V DA Factory Setting
Y2 5.3 V 9.7 V RA
Y3 6.0 V 8.0 V DA
M
0%
Y1 Y2
50%
Y3
100%
0 1 2 3 4 5 6 7 8 9 10
Control signal (VDC)
7
PB_VA-7700_Electricl Valve Actuators_02 2011
Mounting instructions Wiring instructions
When mounting the actuator on a valve, please follow the • All wiring must be in accordance with local regulations
instructions below: and national electrical codes and should be carried out by
authorised personnel only.
• It is recommended that the valves be mounted upright or at
angles not greater than 90° in an easily accessible location. • Make sure that the line power supply is in accordance with the
power supply specified on the device.
• See also the instructions in paragraph “Application”.
WARNING: ■
Shock Hazard
• Disconnect the power supply before wiring
connections are made to prevent personal
injury.
Equipment Damage Hazard
• Make and check all wiring connections before
• The actuator must be protected against dripping water, which applying power to the system. Short circuited
could enter the housing and damage the mechanism or motor. or improperly connected wires may result in
• Do not cover with insulating material. permanent damage to the unit.
• Sufficient clearance must be allowed for actuator removal (refer
to the dimension drawings).
• The valve must be installed so that the plug seats against the
flow, as indicated by the arrows on the valve.
WARNING: These actuators are intended to
control equipment under normal operating
conditions. Where failure or malfunction of the
actuator could lead to an abnormal operating
condition that could cause personal injury or
damage to the equipment or other property,
other devices (limit or safety controls) or
systems (alarm or supervisory systems)
intended to warn of or protect against failure
or malfunction of the actuator must be
incorporated into and maintained as part of the
control system.
8
PB_VA-7700_Electricl Valve Actuators_02 2011
Wiring Diagrams (Models with mechanical manual override)
WARNING: ■
Equipment Damage Hazard
• On 24 V models with manual override, it is not
permitted to connect voltages greater than ■
24 V to terminals 10, 11, and 12
VA-7740-xx01 - Floating models, 24 VAC supply
VA-7740-xx03 - Floating models, 230 VAC supply
Com 0...10VDC Com
/0...20mA
0...10VDC
VA-7746-xx01 - Proportional models, 24 VAC supply
9
PB_VA-7700_Electricl Valve Actuators_02 2011
Wiring Diagrams (Models without mechanical manual override)
VA-7700-xx01 - Floating models, 24 VAC supply
VA-7700-xx03 - Floating models, 230 VAC supply
Com 0...10VDC Com
/0...20mA
0...10VDC
VA-7706-xx01 - Proportional models, 24 VAC supply
10
PB_VA-7700_Electricl Valve Actuators_02 2011
Dimensions (in mm)
VA-77xx-10xx
A 25 mm VA-770x: actuators without manual override
A 80 mm VA-774x: actuators with manual override
87
90
VA-77xx-82xx
11
PB_VA-7700_Electricl Valve Actuators_02 2011
Technical Specifications
Product VA-7700
Models Floating Proportional
Supply voltage 230 V ± 15 % 24 V ± 15% 24 V ± 15%
50/60 Hz 50/60 Hz 50/60 Hz
Control signal Positioner Adjustment Time (PAT) 0...10 VDC or 0(4)...20 mA
Feedback signal 0…10 VDC
Mechanical Manual override
- VA-770x None Electrical
- VA-774x Mechanical Electrical + Mechanical
Type of motor Synchronous / reversible
Max. Power Consumption
- Active 3.5 W 2.6 W 3.2 W
- Apparent 3.9 VA 2.6 VA 4.7 W
Electronic positioner 100 kΩ min. (0…10 VDC)
---
Input impedance 250 Ω (0(4)…20 mA)
Resolution 0.5 %
(up to 200 steps on 20 mm stroke)
Feedback ratings max 2mA at 0..10 VDC, 5 kΩ
Manual contact 2A Resistive 1A Inductive, 24 VAC (24 V switch)
micro-switch max. load 2A Resistive 1A Inductive, 230 VAC only for VA-7740-1003
Force 500 N ± 20%
Stroke 20-mm maximum
Nominal full stroke time mm 50 Hz 60 Hz
8 84 s 70 s
13 137 s 114 s
19 200 s 167 s
Enclosure protection IP54 (IEC 60529)
Materials
- Cover Self extinguishing ABS + polycarbonate PC
- Wiring Cover Polycarbonate
- Hand wheel Polyamide PA66
- Yoke Die cast aluminium
- Plates Zinc plated steel
- Gears Acetylic resin
Ambient Operating Condition -5 to +55, °C, 10…90% RH non condensing
Ambient Storage Condition -20 to +65 °C, 10…90% RH non condensing
Wiring 2.5 mm2 terminal block
Wiring entrance (2) M20x1.5 cable conduit adapters – for separated power/accessories wiring access
(cables from Ø6-mm to Ø12-mm)
Net weight 0.8 kg
Life time Tested for 250,000 full cycles
Johnson Controls, Inc., declares that these products are in compliance with the essential
Compliance requirements and other relevant provisions of the EMC Directive 2004/108/EC and
Low Voltage Directive 2006/95/EC
Building Efficiency
Headquarters: Milwaukee, Wisconsin, USA
Branch Officies: Principal Cities World-wide
Metasys® and Johnson Controls® are registered trademarks of Johnson Controls, Inc.
All other marks herein are the marks of their respective owners.
© Copyright 2011 Johnson Controls, Inc. All rights reserved. Any unauthorized use or copying is strictly prohibited.
www.johnsoncontrols.com
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