Salve, sono alle prime armi con arduino. Possiedo un arduino Uno e volevo provare a far alzare o abbassare una tapparella gestita da un sensore di gas. Ho già letto qualche discussione e mi è venuta una semi idea ma credo che non funzionerà.
Ecco lo schema che avevo pensato:
Dite che funziona?
Dovrei usare dei transistor? Se si come?
Dovrei anche usare dei diodi?
attendo una risposta.
Grazie a chi mi risponderà.
(ho già scritto un post ma credo di non essermi fatto capire bene).
Hi, I'm a beginner with arduino. I have an Arduino Uno and wanted to try to raise or lower a shutter operated by a gas sensor. I've already read some discussion and I came up with a semi idea but I think it will not work.
Here's the pattern that I thought:
Say that work?
Should I use the transistor? If so, how?
Should I also use diodes?
I await a response.
Thanks to those who respond.
(I already wrote a post but I do not think I did understand well).
What are the two devices the motor and arduino are connected to ?
(one labeled 0V and the other labeled 230V)
Quali sono i due dispositivi il motore e arduino sono collegati a?
(quello denominato 0V e l'altro 230V etichettato)
Sono relè
They are relay
È consigliabile utilizzare il circuito stabilizzatore qui mostrato di ridurre contatto d'arco a causa della natura di elettricità spento mentre sotto tensione. Gli elettroni salterà la distanza dei contatti separano a causa della elevata tensione e la quantità di corrente che causa un arco che è plasma caldo. Questo calore si trasferisce alla cassa in plastica attraverso i cavi di contatto e potrebbe sciogliere la plastica. Il circuito stabilizzatore fornisce un percorso alternativo attraverso un condensatore e resistore di limitazione della corrente di carica. La corrente si interrompe quando il condensatore è completamente carica. I valori dei componenti indicati sono per i valori del circuito.
You should use the snubber circuit shown here to reduce contact arcing due to the nature of electricity being switched off while under power. The electrons will jump the gap of the separating contacts because of the high voltage and the amount of current causing an arc which is hot plasma . This heat will transfer to the plastic case through the contact leads and could melt the plastic. The snubber circuit provides an alternate path through a current limiting resistor and charging capacitor. The current stops when the capacitor is fully charged. The component values shown are for your circuit values.
But I need control the direction of the motor
It's AC . You can't. (that I know of)
Induction motor or universal motor?
Draw the schematic by hand with pen and paper and take a photo with cell phone and post it.
The schematic of your first post makes no sense.
Lo so che il primo schema non ha senso.
Questo è il link del motore:
non lo possiedo ancora, perchè sto aspettando di vedere se va bene.
I know that.
These is the link of the motor:
I haven't already it, because I don't know if it work.
There is only ONE problem. The specifications did not specify AC . only 230V.
I do not know if that is their way of representing DC. Do NOT power this motor until you send an email or call them and ask if the 230V means DC or AC .
FYI-POWER = 150w /230v=0.65A current.
If it means DC, there is no problem reversing direction. If if means AC, there is no way to change direction.
COMMON sense dictates that if it is a LINEAR ACTUATOR, it MUST be capable of changing direction. When you email them make it clear you understand that and simply ask "Is it your policy to represent DC VOLTAGES WITHOUT the "dc" after the value and you want to confirm that is what they meant."
Assuming it is DC, then you need an H-BRIDGE to reverse direction
http://schematicdiagrams.net/basic-h-bridge-circuit-diagram.html
Attached are a couple of reference files as examples of h-Bridge circuits. Yours is not actually high power, simply high voltage. Big difference.
Since your initial post used relays, here is a link to an explanation of reversing motor direction using a double pole double throw relay ( DPDT)
The theory is simple.
Let's suppose we have a DPDT relay.
We'll call the first set of contacts (NO-1,NC-1,COM-1) SET-A
second set of contacts (NO-2,NC-2,COM-2) SET-B
Let's label the motor terminals "1" & "2"
Draw a circle to represent the motor and draw the two terminals horizonally with "1" on the left and "2" on the right.
Just to the left of the motor draw three small circles in a vertical column. Label the center circle COM. Label the top contact, NC
and the bottom contact "NO" (Normally Open)
Now draw the relay contact as a straight line from the center the NC and just past it to represent the relay in NC position.
Label the NC contact +V.. Label the NO contact -V. Do the same thing on the right side but with one difference. Draw the NC
contact as the BOTTOM RIGHT contact of the three vertical small circles and label it -V (minus V). Label the top RIGHT contact as
+V. You should now have motor term-1 connected to the left COM and the left contact in NC position at +V. On the right you should have motor term-2 connected to the right COM with the contact in NC position at the bottom right as -V. Now if you
engize the motor it turns one direction with term-1 as plus and 2 as minus. If you energize the relay it turns the other direction.
The drawback with this is the speed control must be done separately somehow. If using an H-bridge driver all those features are built in. With relay , you still have to add some other components for speed control
http://www.talkingelectronics.com/projects/H-Bridge/H-Bridge-1.html
I don't know how to do a high voltage H-Bridge with speed control other than to use discrete devices and choose the Mosfets for the correct voltage rating.
hbridge-reference-ualberta-arvp.pdf (406 KB)
MOSFETHBridge.pdf (579 KB)
Ma in questa foto ci sono 4 cavi quindi suppongo che 2 sono per far girare il motore in un senso e due in un altro
But in these photo you can see 4 cables. Maybe 2 for a direction and 2 for another direction
You CANNOT connect those wires until you get the wire name/function information from the manufacturer. It is likely not as you suggest. I don't know why it has 4 wires. If it were a stepper it would have 5 or 6. If it were brushless it would have 3. . I have no idea what to do with those wires without the Wire function reference table. you need to get that before you can use it. And FYI,
NEVER BUY A MOTOR WITHOUT THAT INFORMATION IN ADVANCE.