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+--- Thread: Clutch control (/showthread.php?tid=2146)
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Clutch control - webber63 - 2019-12-12
Hello everybody
Last summer bought the motor controller from Pypilot website but used it only with a clutch-less actuator.
Now I'm going to buy a linear actuator (found a second hand 'Raymarine Type 2' ) that has the clutch.
I read on Motor Controller schematics that pin 11 on arduino controls the clutch but I'm not sure if it is directly connectable or if it needs some additional circuit.
Somebody can help me?
Thank You, bye
RE: Clutch control - ironman - 2019-12-12
No, the electrical current that comes out of one of those pins is not big enough to drive clutch magnets; some service manual suggests a clutch current of max 1.5 amperes. So you need some kit to sit in between. Google search for 'relais module' if you want something ready-made, which I'd suggest. But if you want to get into electronics you only need a few parts to make one yourself.
RE: Clutch control - seandepagnier - 2019-12-14
You can drive a mosfet from pin 11 to drive the clutch. See the schematic of the hydraulic controller:
http://pypilot.org/schematics/hydraulic_controller.pdf
Clutch control - webber63 - 2019-12-14
Thanks Sean
I saw it but don’t know precisely which model of MOSFET. Can you advise me about it?
Inviato dal mio iPhone utilizzando Tapatalk
RE: Clutch control - seandepagnier - 2019-12-17
You should use a logic level mosfet capable of handling the current you need with acceptable losses. There are a wide range of mosfets suitable.
RE: Clutch control - chech - 2021-06-16
Hello i have a question i have a New used motor lewmar direct drive whith electromagnetic clutch
At 12 v it IS at 2.2 A i think it s to much have you any expérience for go down it IS right to change thé number in motor.ino whith test for search the good power thinks sorry for my explain in english
RE: Clutch control - seandepagnier - 2021-06-16
2.2a is ok for clutch output consider 10 milliohm resistance, losses in mosfet:
2.2*2.2*.02 only 50 milliwatts. As long as it's below 500 milliwatts the to220 package should be "ok"
RE: Clutch control - chech - 2021-06-16
Thanks Sean Would it be possible to give 12v 2 Amps when switching on and then reduce for maintenance I think the hydraulic pilot uses this system on the solenoid
RE: Clutch control - chech - 2021-06-16
(2021-06-16, 06:36 PM)chech Wrote: Thanks Sean Would it be possible to give 12v 2 Amps when switching on and then reduce for maintenance I think the hydraulic pilot uses this system on the solenoid
The DRV101 can be set to provide a strong initial closure, automatically switching to a soft hold mode for power savings it is posible to use it
can i made this whith mofset whith modification of motor.ino
RE: Clutch control - seandepagnier - 2021-06-16
it is already supported now in the github repository to set a pwm value for the clutch output to reduce current