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deadband on a HW modutrol motor [Text] – – Interactive Q & A

It is a C Integral auxiliary switches are available factory mounted, or can be field honeywwll. You might also look what happens if the valve is disconnected from the modutrol. Usually Ships in 1 – 3 Weeks Availability: Ill check to see if it has a dead band.

Ill let everyone know how much more accurate it is. Maybe such a device exists that I’m unaware of – anybody come across one? Register for an account. Astounding, isn’t it, that a primary performance characteristic of an actuator motor, output resolution of the actuator shaft, is a closely guarded secret? Integral junction box provides NEMA 3 weather protection. The motors accept a current or voltage signal from an electronic controller to position a damper or valve at any point between open and closed.

Safe and secure checkout at Controls Central. It is a new modutrol tho. I have seen that with pneumatic actuators. Terms Of Use Privacy Statement. While calling about this issue, I heard, more than twice, two numbers from Honeywell people, 35 or 55 positions for the Modutrol line. It sure wasnt easy getting it out of honeywell, I am glad you did.

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Honeywell Modulating Motor M 7284 C 1000

Models available with factory installed transformer, or a field added internal transformer. It isn’t clear how many more repositions or how much more step resolution ‘enhanced’ means.

Above replacements may require additional mounting accessories. The 4 enhanced motor models are MC MC MQ MQ While 55 repositions is adequate for typical damper positioning, it is too coarse for serious proportional control of firing rate motors.

Now, it could be 2.

Modutrol IV™ Series 2 Motors | Industrial Controls

JPG But it’s given its cost, a can only be justified where the torque and resolution performance is required, like ID or FD control dampers on boilers. It would seem that if the motor only runs when the input voltage is applied through the control circuit, the motor could run 0. The ideal cotnrol position was in between motor reposition-steps.

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I am going to switch the motors out. It specs the reposition resolution. You can also find answers to some common questions on our FAQ page.

There’s a different class of electric actuators for the massive valves used in waste treatment plants, by vendors like Rotork, and I’ll bet they’re more than willing to define what sort of resolution their actuators provide.

I do not know the model off hand, ill get it tomorrow in the shop. I did it, it worked. So bear in mind there’s still some question on that value.

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So it follows that your motor doesn’t have the adjustment.

Modutrol IV Motor V 90 degree stroke 30 sec Honeywell has a higher torque motor, the Herculine series, in a different class. Email to a Friend.

Single Phase Honeywell Modutrol Motor, Model: M7284

I am surpised that an “industrial” control motor has such poor performace. Gas Burner Spares Limited. Hey all, ive noticed some odd behavior of a honeywell modutrol motor actuating a port honeywel. The complaint was hunting, where the controller couldn’t maintain setpoint on a belt oven.

All models have auxiliary switch cams. Adapter bracket for matching shaft height of older motors is available. But I’ve seen first hand the effect of honfywell acuator that can not resolve sufficient positions to control a gas valve. Have you seen our Winter Catalog or Special? The PV oscillation synched with the motor hunting.

This class of actuator can be had with Modbus, as can Rotork. Motors are designed for either normally open or normally closed valves and dampers. Backing off the tuning constants to slug the controller response down made no difference, the PV was clearly, to the eye, tracking the motor position and the desired motor position could not be hobeywell.

This is a 4 – 20 system, and the ma value does change when I change the plc output.