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+--- Thread: Clutch driver ? (/showthread.php?tid=1279)
Clutch driver ? - NahanniV - 2018-06-27
Is there a clutch or bypass solinoid driver ?
Most electro mechanical below deck drives have a clutch.
These seem to require 2-5ADC.
Hydraulic rams on cable steered boats usually have a normally open bypass solinoid.
Some autopilots drive the solinoid with DC for a short time to close it, then change to a pulsed output to save power.
RE: Clutch driver ? - seandepagnier - 2018-06-29
(2018-06-27, 04:41 AM)NahanniV Wrote: Is there a clutch or bypass solinoid driver ?
Most electro mechanical below deck drives have a clutch.
These seem to require 2-5ADC.
Hydraulic rams on cable steered boats usually have a normally open bypass solinoid.
Some autopilots drive the solinoid with DC for a short time to close it, then change to a pulsed output to save power.
Yes. For controllers based on brushless esc, the third phase (unused) pulls to gnd can be used for a clutch, already works on my controllers.
For the high current controller, there is also a terminal for this, and I intend to adjust the duty cycle to allow a reduced holding current to conserve power.
RE: Clutch driver ? - NahanniV - 2018-06-29
(2018-06-29, 03:54 PM)seandepagnier Wrote:(2018-06-27, 04:41 AM)NahanniV Wrote: Is there a clutch or bypass solinoid driver ?
Most electro mechanical below deck drives have a clutch.
These seem to require 2-5ADC.
Hydraulic rams on cable steered boats usually have a normally open bypass solinoid.
Some autopilots drive the solinoid with DC for a short time to close it, then change to a pulsed output to save power.
Yes. For controllers based on brushless esc, the third phase (unused) pulls to gnd can be used for a clutch, already works on my controllers.
For the high current controller, there is also a terminal for this, and I intend to adjust the duty cycle to allow a reduced holding current to conserve power.
Great !
We will be moving aboard a boat in November that has a Raymarine TypeII rotary drive.
The Specifications say typical power consumption 60-84W and the clutch output of the recommended controller is up to 4A.
So, it looks like I would need the high current controller.
If you are implementing the reduced duty cycle to save power, I think it should be configurable on/off or solenoid/clutch because it should only be used with solenoids not mechanical clutches since it would reduce the maximum torque of a clutch.
Cheers,
JM.