MTPED – electric linear actuator

Usage

Electric linear actuator MTPED is used for remote two-position or three-position control of valves by reciprocating linear motion. The actuators can also be used for other devices for which they are appropriate due to their performance and parameters. Using in special cases should be discussed with the manufacturer.

Description

The MTPED actuators are based on MODACT MON actuator series. Moreover, they are designed with linear transmission unit for converting rotary motion into linear motion. An asynchronous motor drives, via a geared countershaft, the sun gear of a epicyclic gear unit enclosed in the supporting actuator box (power transmission). In the mechanical power control mode, the crown gear of a planet epicyclic gear unit is held in steady position by a self-locking worm gear drive. Alternatively, the handwheel, connected with the worm allows manual control to be accomplished even during motor operation without any risk of operator’s injury.

The actuator is controlled by built-in electronic circuits scanning the state of the actuator output shaft, output shaft torque, temperature of electric motor, value of supply voltage, and input signals. They are evaluated by the control program which, depending on pre-set parameters, controls output signals – state of output contact, output analog signal, control of electric motor, data communication with the superior control system.

The control elements are accessible after taking off the control box lid. For the actuators designated MTNED and for the actuators designated MTPED, the electric motors used have protective enclosures IP67. The complete actuator has the protective enclosure according to the electric motor used.

Electro-mechanical control board is replaced with the electronic system DMS2 or DMS2 ED. Both systems scan position of the output shaft and torque of the electric actuator by contact-free magnetic sensors. The sensor of the output shaft position is absolute and does not require any backup power supply in case supply voltage is disconnected during operation of the electric actuator.

Both systems can be set and monitored by a computer with controlling programme or manually without a computer. The more simple system DMS2 ED substitutes electromechanical parts and/or provides for controlling the electric actuator by input analog signal as in the version Control. The system DMS2 enables the electric actuator to be used for two-position and three-position regulation or to be connected to the industrial bus bar Profibus.

Documents for download

• Catalog
• Catalog 52 441
• Installation instructions
• Installation instructions 52 441

Príspevok Electric linear actuator MTPED zobrazený najskôr MARVEL P.I.&T. | MARVEL-BMT | Electric actuators.

MTNED – electric linear actuator

Usage

Electric linear actuator MTNED is used for remote two-position or three-position control of valves by reciprocating linear motion. The actuators can also be used for other devices for which they are appropriate due to their performance and parameters. Using in special cases should be discussed with the manufacturer.

Description

The MTNED actuators are based on MODACT MON actuator series. Moreover, they are designed with linear transmission unit for converting rotary motion into linear motion. An asynchronous motor drives, via a geared countershaft, the sun gear of a epicyclic gear unit enclosed in the supporting actuator box (power transmission). In the mechanical power control mode, the crown gear of a planet epicyclic gear unit is held in steady position by a self-locking worm gear drive. Alternatively, the handwheel, connected with the worm allows manual control to be accomplished even during motor operation without any risk of operator’s injury.

The electric linear actuator MTNED is controlled by built-in electronic circuits scanning the state of the actuator output shaft, output shaft torque, temperature of electric motor, value of supply voltage, and input signals. They are evaluated by the control program which, depending on pre-set parameters, controls output signals – state of output contact, output analog signal, control of electric motor, data communication with the superior control system.

The control elements are accessible after taking off the control box lid. For the actuators designated MTNED and for the actuators designated MTPED, the electric motors used have protective enclosures IP 55. The complete actuator has the protective enclosure according to the electric motor used.

Electro-mechanical control board is replaced with the electronic system DMS2 or DMS2 ED. Both systems scan position of the output shaft and torque of the electric actuator by contact-free magnetic sensors. The sensor of the output shaft position is absolute and does not require any backup power supply in case supply voltage is disconnected during operation of the electric actuator. Both systems can be set and monitored by a computer with controlling programme or manually without a computer.

The more simple system DMS2 ED substitutes electromechanical parts and/or provides for controlling the electric actuator by input analog signal as in the version Control. The system DMS2 enables the electric actuator to be used for two-position and three-position regulation or to be connected to the industrial bus bar Profibus.

Documents for download

• Catalog
• Installation instructions
• Addition to installation instructions

Príspevok Electric linear actuator MTNED zobrazený najskôr MARVEL P.I.&T. | MARVEL-BMT | Electric actuators.

MTN – electric linear actuator

Usage

Electric linear actuator MTN can be used even for other devices for which they are in respect of their characteristics and parameters suitable. In some special cases, the contemplated use of the actuators should be consulted with the manufacturer.

Description

The MODACT^® MTN actuators are used for remote two-position or three-position control of the valves by a reverse rectilinear motion. The MODACT^® MTN CONTROL actuators are fitted with an electronic position controller. In association with the valve exhibiting a suitable control characteristic, they form a position servo-loop. The output pull-rod of these actuators is automatically brought into a position corresponding to the input signal value of the controller.

Documents for download

• Catalog
• Installation instructions
• Addition to installation instructions

Príspevok Electric linear actuator MTN zobrazený najskôr MARVEL P.I.&T. | MARVEL-BMT | Electric actuators.

UL 2-A – electric linear actuator

Standard equipment

• Supply voltage 230 V AC
• Terminal board connection
• 2 thrust switches
• 2 position switches
• 2 additional position switches
• Space heater with thermal switch
• Mechanical connection – pillars
• Manual control
• Mechanical position indicator

Additional equipment

• Supply voltage 3×400 V AC
• Transmitter:
  – potentiometer: 1×100 Ω, 1×2000 Ω, 2×100 Ω, 2×2000 Ω
  – electronic position transmitter 0/4 – 20 mA, (passive/active)
  – CPT (capacitive) 4 – 20 mA, (passive/active)

Documents for download

• General conditions

Príspevok Electric linear actuator UL 2-A zobrazený najskôr MARVEL P.I.&T. | MARVEL-BMT | Electric actuators.

ULR 2 PA-Ex – explosion-proof electric linear actuator

Standard equipment and functions with DMS3 control unit

• Supply voltage:
  • 230 V / 50 Hz
• Terminal board connection
• Protection of the electromotor against overheating
• Switching off in limit positions from position and from thrust
• Adjustable switching-off thrust from 50% to 100%
• Thrust blocking in limit positions
• Thrust blocking during the start
• 2 freely programmable relays R1, R2 (Not valid for Profibus and Modbus)
• Relay READY (Not valid for Profibus and Modbus)
• Control by unified signal 0/4 – 20 mA, 4 – 12 mA, 12 – 20 mA, or 0/2 – 10 V (Not valid for Profibus and Modbus)
• Control by permanent voltage (+24 V DC) – OPEN, CLOSE
• Impulse control (inching duty) (+24 V DC) – OPEN, STOP, CLOSE
• Timing mode / regime of operation
• Safety function ESD (failure reaction)
• Electronic position transmitter 4 to 20 mA passive (not for DMS3 in 2P version) (Not valid for Profibus and Modbus)
• Auxiliary voltage output 24 V AC, max. 40 mA for supply of the control inputs
• Output of failure messages
• Space heater operated by control unit
• Communication interface RS 232
• Programme for parameterization setting by PC
• Mechanical connection – pillars
• Manual control
• Enclosure protection IP 66

Additional equipment

• Supply voltage:
  • 3×400 V, 3×380 V, 220 V / 50 Hz
  • 120 V, 110 V / 60 Hz
• Local control for actuators with DMS 3 system
• Reversing unit for 3-phase supply voltage
• Additional relays RE3, RE4, RE5
• Additional relay module RE1, RE2, RE3, RE4, RE5, READY
• Version with control board PROFIBUS DP V0/V1
• Version with control board MODBUS RTU
• Communication cable DB-9F/RJ45
• Terminal box with type of protection “e”
• Cable glands for armoured cables
• Mechanical connection – flange
• Mechanical connection according to ISO 5210 – flange size F07
• Mechanical connection according to ISO 5210 – flange size F10
• Enclosure protection IP 68

Príspevok Explosion-proof electric linear actuator ULR 2 PA-Ex zobrazený najskôr MARVEL P.I.&T. | MARVEL-BMT | Electric actuators.

UL 2-Ex – explosion-proof electric linear actuator

Standard equipment

• Supply voltage 230 V AC
• Terminal board connection
• 2 thrust switches
• 2 position switches
• 2 additional position switches
• Space heater with thermal switch
• Mechanical connection – pillars
• Manual control
• Mechanical position indicator

Additional equipment

• Supply voltage 3×400 V AC
• Transmitter:
  – potentiometer: 1×100 Ω, 1×2000 Ω, 2×100 Ω, 2×2000 Ω
  – electronic position transmitter 0/4 – 20 mA, (passive/active)
  – CPT (capacitive) 4 – 20 mA, (passive/active)

Príspevok Explosion-proof electric linear actuator UL 2-Ex zobrazený najskôr MARVEL P.I.&T. | MARVEL-BMT | Electric actuators.

ST 2 – electric linear actuator

Standard equipment

• Supply voltage 230 V AC
• Terminal board connection
• 2 thrust switches
• 2 position switches
• Mechanical connection – pillar
• Mechanical position indicator
• Manual control
• Protection code IP 65

Additional equipment

• Supply voltage 220 V AC, 3×400 V AC, 3×380 V AC
  24 V AC, 24 V DC
• Connector connection
• Transmitter:
  – potentiometer: 1×100 Ω, 1×2000 Ω, 2×100 Ω, 2×2000 Ω
  – electronic position transmitter 0/4 – 20 mA, (passive/active)
• 2 additional position switches
• Space heater with / without thermal switch
• Local control

Príspevok Electric linear actuator ST 2 zobrazený najskôr MARVEL P.I.&T. | MARVEL-BMT | Electric actuators.