TAC elektrinės pavaros M400 ir M800 (M 400 / M 800) yra skirtos šildymo, karšto vandens ir vėdinimo sistemoms.

M400 (M 400) pavara

– tai daugiafunkcinė elektro-mechaninė pavara dvieigio ar trieigio vožtuvo valdymui, skirta šildymo arba vėdinimo sistemoms.

Rutulinė sklendinė pavara (Globe Valve Actuator)

M400 yra daugiafunkcinė elektromechaninė dviejų ar trijų eigų pavara, skirta vožtuvo valdymui (is a flexible electro-mechanical actuator for the control of two-way and three-way linear globe valves in):
• šildymo sistemai (heating systems)
• vėdinimo sistemai (air handling systems)

M 400 pavara visų pirma skirta taikyti sistemose, kur reikalavimai pavaros greičiui ir traukos jėgai yra santykinai maži (M400 is primarily designed for applications where the demands on actuator speed and thrust are relatively small).

The M400 is either controlled by an increase/ decrease signal or by a modulating control signal. The Forta M400 has a high resolution PCBA for fine valve plug position and excellent flow control. The electronic circuitry of the actuator ensures that the running time is consistent, regardless of the valve stroke.

It is easy to mount and connect the actuator, with direct connection to the Venta valve series without any mounting kits. The M400 is available with a mounting kit for Satchwell valves, linkage kits are also available for valves of other manufacture.

The working range of the actuator is adjusted automatically depending on the stroke of the valve. The electronic circuitry of the actuator then takes care of the adjustment of the valve end positions and auxillary switch points.

2-10V Feedback signal is available on both modulation and on increase/decrease control.

SPECIFICATIONS:

Supply Voltage 24V AC +/- 25%, 50-60Hz ,24V DC +/- 10%
Power Consumption
        running 5W
        rest 4W
        average 6VA
Transformer sizing 30 VA
Running time
Modulating 60 s
Increase/decrease 300 s / 60 s
Stroke 9–32 mm
Factory set stroke 20 mm
Thrust, nominal 400 N
Duty cycle 20% Full load (80% half load, amb. temp.)
Modulating / Proportional Analogue Input (X1-MX)
Voltage range 0–10 V
Impedance min 100 kΩ
Selectable input signals 0-10V / 2-10V, 0-5V / 2-6V, 5-10V, 6-10V
Digital inputs VH–VC (Floating control)
Voltage across open input 24 V AC
Current through closed input 5 mA
Pulse time min. 20 ms
Output G1
Voltage 16 V DC ±0.3 V
Load 25 mA, short-circuit proof
Output Y (Position feedback signal)
Voltage 2-10 V (0-100%)
Load 2 mA
Environmental
Operation temperature –10 – +50 °C
Storage temperature –10 – +50 °C
Ambient humidity max. 90% RH
Enclosure rating IP 54
Sound power level max. 32 dBA
Material
Housing/Yoke Aluminium
Cover ABS/PC plastic
Colour Aluminium/Grey
Weight 1.8 kg (3.96 lb)

FUNCTION

The actuator
The actuator utilises a brushless DC motor to accurately position the main spindle via a gearbox in accordance to the control signal received from the controller.
Upon initial power up and activation of calibration switch 9. The actuator undertakes a full stroke cycle to learn the valve end stop positions and to calibrate the full running stroke time. End switch point adjustment is also calibrated during this process.

Control signal
The Forta M400 can either be controlled by an increase/decrease signal or by a selection of variable direct voltages.
If an increase/decrease signal is used, the actuator normally retracts inwards (Up) on an increase signal and Extends Outwards (Down) on a decrease signal, see Settings.

Manual operation
There is a manual operation handle on the actuator, see figure 2. When the handle is lowered, the power supply to the motor is automatically cut and the actuator can be operated manually by rotating the handle thus lowering or raising the actuator spindle. The actuator is factory supplied with the actuator in manual operation mode.

Position feedback
Forta actuators are equipped with a 2–10 V DC position feedback signal, where 2 V corresponds to the closed position and 10 V to the open position (depending of switch nr.1).

Calibration
When the actuator is initially installed upon a valve and/or the valve is later maintained or serviced, calibration by Dip Switch 9 is mandatory. If calibration is not performed the actuator may not be able to properly modulate within the actual stroke of the valve.

End point switches
When fitted, end point switches toggle when the valve is at 5% and 95% of the valves open or closed position.
End point switches can be utilized to indicate valve stroke end positions and for relay control of separate plant equipment.
End point switches will also allow the actuators to be controlled in sequence when combined with splitting the modulation control signal, thus providing a high system turn down ration of the plant.

Plačiau: http://schneider-electric.com/m400

M800 (M 800) pavara

– tai daugiafunkcinė elektro-mechaninė pavara dvieigio ar trieigio vožtuvo valdymui, skirta karšto vandens arba vėdinimo sistemoms.

M800 yra dvieigė arba trieigė elektromecheninė vožtuvo valdymo pavara (is an electro-mechanical actuator for the control of two-way and three-way globe/plug valves in):
• buitinio karšto vandens sistemai (domestic hot water systems)
• šildymo sistemai (heating systems)
• vėdinimo sistemai (air handling systems)

M800 yra skirta kontroliuojamo signalo padidinimui / sumažinimui arba moduliacinio 0-10 V signalo valdymui. Tolygus valdymas leidžia pasiekti greitesnį pavaros pozicionavimą (M800 is either controlled by an increase/decrease signal or by a modulating 0–10 V control signal. Modulating control makes for a faster positioning of the actuator).

The electronic circuitry of the actuator ensures that the running time is the same, regardless of the stroke of the valve in question.

It is easy to mount and connect the actuator. It can be mounted directly onto 20mm stroke SchneiderElectric control valves, without any mounting kit. A stem extension is required to connect onto the VG210R and VG310R valves.

For Satchwell valves a linkage is included (see PART NUMBERS on page 2) The working range of the actuator is adjusted automatically depending on the stroke of the valve. The electronic circuitry of the actuator then takes care of the adjustment of the valve end positions.

The Manual override on the Forta can be operated without disconnecting the power to the board. Stroke Indicators on the yoke of the actuator provide clear visual indication to the valves opening position.

SPECIFICATIONS

Supply Voltage 24V AC +/- 25%, 50-60Hz 24V DC +/- 10%
Power consumption average 15 VA
Transformer sizing 50 VA
Running time
Modulating 9–25 mm 15 s
Modulating 25–32 mm 20 s
Modulating 32–52 mm 30 s
Increase/decrease 300 s / 60 s
Stroke 9–52 mm
Default factory set stroke 20 mm
Thrust 800 N (180 lbf.)
Duty cycle max. 20%/60 minutes
Modulating / Proportional Analog input (X1-MX)
Voltage Range 0–10 V
Impedance min 100 k Ohm
Digital inputs, Floating VH–VC
Selectable Input Signals 0-10V, 2-10V, 0-5V, 2-6V, 5-10V, 6-10V
Voltage across open input 24 V AC
Current through closed input 5 mA
Pulse time min. 20 ms
Output G1
Voltage 16 V DC ±0.3 V
Load 25 mA, short-circuit proof
Output Y (Position Feedback Signal)
Voltage 2-10 V (0-100%)
Load 2 mA
Environmental
Operation temperature –10 – +50 °C
Storage temperature –10 – +50 °C
Ambient humidity max. 90% RH
Enclosure rating IP 54
Sound power level max. 40 dBA
Material
Housing aluminium
Cover ABS/PC plastic
Colour aluminium/grey
Weight 1.8 kg (3.96 lb.)

FUNCTION

The actuator M800
The brushless DC-motor of the actuator turns a screw via a gear wheel. The motor receives a control signal from a controller. The screw gets a linear movement which moves the stem of the valve.

Control signal
M800 can either be controlled by an increase / decrease signal or by a variable direct voltage. If an increase/decrease signal is used, the actuator normally moves inwards on an increase signal and outwards on a decrease signal, see Settings.

Manual operation
There is a manual operation handle on the actuator, see figure 2. When it is lowered, the motor stops. Then, the actuator can be operated manually if the handle is turned. The actuator is supplied with the manual operation lowered.

Position feedback
Forta actuators are equipped with a 2–10 V DC position feedback signal, where 2 V always corresponds to the closed position and 10 V to the open position (depending of switch nr.1).

End point switches
When actuators are controlled in sequence, it is possible to use the end point switches that have set positions. They will toggle when the valve is fully open or fully closed, respectively.

Plačiau: http://schneider-electric.com/m800