M400 is an electro-mechanical actuator for the control of two-way and three-way plug valves in:
• heating systems
• air handling systems
M400 is primarily designed for applications where the demands on actuator speed and thrust are small.
The actuator can not be equipped with Self Testing Device STS.
M400 is either controlled by an increase/decrease signal or by a modulating 0–10 V control signal.
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 TAC’s control valves, without any mounting kit.
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 actuator is supplied by 24 V AC. It can provide a position indicator signal 2-10 V and a 16 V DC voltage supply for older TAC controllers.
SPECIFICATIONS Supply voltage 24 V AC +25% / -35%, 50-60 Hz Increase/decrease 300 s/60 s Duty cycle Max. 20%/60 minutes Analogue input Voltage 0-10V / 2-10V / 0-5V / 5-10 / 2-6 / 6-10 Impedance Min. 100 kΩ Digital inputs VH–VC Voltage across open input 24 V AC Current through closed input 5 mA S2 Output – Auxiliary end point switch (optional) Type 2 x SPDT Voltage 24V AC Load 4A (resistive) / 1A (inductive) Output G1 Voltage 16 V DC ±0.3 V Load 25 mA, short-circuit proof Ambient temperature Operation -10 to +50°C Storage -10 to +50°C Ambient humidity Max. 90% RH Enclosure rating IP 54 Standards Emission EN 61326-1 Immunity EN 61326-1 Material Housing Aluminium Cover ABS/PC plastic Colour - M400 Aluminium/red Weight 1.8 kg (3.96 lb)
