Standards and approvals ………….……………..17 Description MZ4 and MZ7 servomotors are designed for all applications which require precise and controlled rotary movement. In particular, they can be used to operate VF, VFT, VFH and LMV valves for gas and air flow in combustion processes, with positioning by means of digital signals or analog control.
ELEKTROGAS – Technical Sheet EE158 – 02/25 Applications - In case of combustion process being regulated combustion modulation, VF valves with servomotor can be used, coupled to another butterfly valve manually operated (available graduated scale and locking screw) to setup high-fire rate of the burner.
(e.g. manual operation, alarms, etc.). The most of settings can be made with a dipswitch and some jumpers. The current position can be monitored via an integrated potentiometer (optional) in MZ4 version, or an output analog signal in MZ4A version.
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ELEKTROGAS – Technical Sheet EE158 – 02/25 15 1 15 1 Fig. 7 Connections (1,2) : Main power supply of the device between 110Vac and 230Vac. : Input for closing : Input for opening : Feedback for MAX position : Feedback for MIN position...
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ELEKTROGAS – Technical Sheet EE158 – 02/25 Manual mode For a simplified commissioning, the actuator can be operated manually. The manual mode is useful to set the limit positions for the process, regardless of the input signals. To enter in the manual mode, shift the switch S1 upward (Led Status flashes slowly). Now it's possible to open the valve (counter clockwise rotation seen from the top), by pressing the button B2, and to close the valve (clockwise rotation seen from the top), by pressing the button B1.
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ELEKTROGAS – Technical Sheet EE158 – 02/25 MZ4 Operating state Normal operation Status Led Alarms Led State description BLUE Fast flashing Automatic mode Slow flashing Manual mode Permanent light Resetting MIN position at power on (when required) Fast flashing: 4 times per second...
ELEKTROGAS – Technical Sheet EE158 – 02/25 Operation MZ7 This unit is designed for all applications that require high precision control of rotary movement between 0° and 90°, with a wide range of control modes. Inside the compact servo drive housing there is a BLDC electric motor, a gearbox, a control unit with a 32-bit microcontroller and a Wi-Fi module.
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ELEKTROGAS – Technical Sheet EE158 – 02/25 anual ed ran e Fig. 9 Connections (1,2) : Main power supply of the device between 110Vac and 230Vac. (3,4,5) : Contacts activated directly by the cam C1 for the monitoring of intermediate positions.
ELEKTROGAS – Technical Sheet EE158 – 02/25 Setting of the MIN and MAX positions In manual mode it's possible to save current position as MIN (MAX) by pressing button B4 (B3) for more than 3 seconds (shorter pressing are not considered). When the position is saved, Status Led lights up permanently and the button may be released.
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ELEKTROGAS – Technical Sheet EE158 – 02/25 4-point control In addition to MIN and MAX positions, it is possible to define other 3 positions via the App: LOW, MEDIUM and HIGH, as percentage (MIN is 0%, MAX is 100%). With different digital inputs it is...
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ELEKTROGAS – Technical Sheet EE158 – 02/25 MZ7 Operating state Normal operation Status Led Alarms Led State description BLUE Fast flashing Automatic mode Slow flashing Manual mode Permanent light Flashing if the Setting of the MIN and MAX positions when position has...
ELEKTROGAS – Technical Sheet EE158 – 02/25 Ordering information 410A . XP1 Type Model 2/3-point 5 Nm 2/3-point 10 Nm 2/3-point + analog 5 Nm 410A 2/3-point + analog 10 Nm digital + analog 5 Nm digital + analog 10 Nm...
ELEKTROGAS – Technical Sheet EE158 – 02/25 Standards and approvals The product complies with the essential requirements of the following European Directives and their amendments: 2009/142/EC (Gas Appliances Directive) Reg.-No 01MECH 2014/34/EU (ATEX) when shown upon the product 2014/30/EU (Electromagnetic Compatibility)
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