julianf
Member
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- 8,123
- Location
- devon, uk
So, its inevitable, given my purchase from this thread -
This is the wiring diagram for the unit -
(I have attached the whole workshop manual to this thread for reference)
The machine will be run off a vfd, so im not fussed about any of the motor control, specifically, but im trying to understand the rest - i dont have an operator's manual, so the function of the solenoid (R) is confusing to me.
Im not good at reading these kinds of schematics, but, am i right in thinking that, if the 3 position operation switch is in position D (hand) then the top part of the circuit is in play, however, if the switch is in position F (auto) then the lower section is also bought in?
Ie the pressure switch and solenoid are only activated in Auto mode?
At present the machine was (but is not now) working in manual mode, but in Auto it currently (and, im told has always done) builds pressure but then goes into the red on the pressure gauge, and has never outputs any air.
What im really trying to get my head around is how it "should" work, before i work out how i want to make it work.
Ill be running it off a VFD, so i dont need any of the star delta switch over, but (im assuming) the solenoid is to vent compressor on startup?
I cant exactly see how this works, as it seems to be operated from the pressure switch itself, but maybe im thinking of it wrong?
My main lack of understanding is how the machine regulates in "hand" mode (always on) - does it just vent from a mechanical valve, and remain spinning?
Thank you.
This is the wiring diagram for the unit -
(I have attached the whole workshop manual to this thread for reference)
The machine will be run off a vfd, so im not fussed about any of the motor control, specifically, but im trying to understand the rest - i dont have an operator's manual, so the function of the solenoid (R) is confusing to me.
Im not good at reading these kinds of schematics, but, am i right in thinking that, if the 3 position operation switch is in position D (hand) then the top part of the circuit is in play, however, if the switch is in position F (auto) then the lower section is also bought in?
Ie the pressure switch and solenoid are only activated in Auto mode?
At present the machine was (but is not now) working in manual mode, but in Auto it currently (and, im told has always done) builds pressure but then goes into the red on the pressure gauge, and has never outputs any air.
What im really trying to get my head around is how it "should" work, before i work out how i want to make it work.
Ill be running it off a VFD, so i dont need any of the star delta switch over, but (im assuming) the solenoid is to vent compressor on startup?
I cant exactly see how this works, as it seems to be operated from the pressure switch itself, but maybe im thinking of it wrong?
My main lack of understanding is how the machine regulates in "hand" mode (always on) - does it just vent from a mechanical valve, and remain spinning?
Thank you.