s M, M, M, M, and M are . Your local Honeywell Home and Building Control Sales Office (check white pages of your phone directory). M, M, M, and M are non-spring Your local Honeywell Environmental and Combustion Controls Sales Office (check white pages of your . Find great deals for 1pc Honeywell M Mc Modutrol IV Motor. Shop with confidence on eBay!.
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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 sure wasnt easy getting it out of honrywell, I am glad you did. I do not know the model off hand, ill get it tomorrow in the shop. The ideal cotnrol position was in between motor reposition-steps.
Astounding, isn’t it, that a primary performance characteristic of an actuator motor, output resolution of the actuator shaft, is a closely guarded secret? And since the major market for this category of actuator is HVAC, well, you take what you get.
It took 3 calls to find someone willing to research this. I am going to switch the motors out. Have you seen our Winter Catalog or Special?
Gas Burner Spares Limited. Fixed torque throughout the entire voltage range.
Honeywell, Inc. MA M; M; M; M Modutrol IV Motors at Controls Central
Double click on above image to view full picture. Add this item to my cart. The original link I gave was a m2784 pdf, whose document number has no other hits on the web.
Hey all, ive noticed some odd behavior of a honeywell modutrol motor actuating a port valve. So bear in mind there’s still some question on that value.
There is honeyweol interplay between a deadband adjustment in the motor and its resolution, but I can’t recall the details. The current web page for the Mx motors 7m284 http: Heres another question then, what acctuators does everyone else use for things such as port valve motors?
deadband on a HW modutrol motor [Text] – – Interactive Q & A
This is a 4 – 20 system, and the ma value does change when I change the plc output. Usually Ships in 1 – 3 Weeks. All models have auxiliary switch cams. Now, it could be 2. The complaint was hunting, where the controller couldn’t maintain setpoint on a belt oven. The oven lined out nicely with a slower motor and the motor did not hunt. While investigating a “poor control” complaint, I discovered that Barber Colman motors this was 20 years ago used the same die cast housing, same electric motor, same slidewire, but just changed the gear train.
Honeywell Modulating Motor M 7284 C 1000
Here’s the manual statement: The Honeywell text, as usual, is not clear, but the fact that the adjustment setting affects movements in the “opposite direction from the most recent change” seems to be what is happening with regard to your applied changes. 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 achieved.
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.