[ Pobierz całość w formacie PDF ]

For 24Vdc :
T4 : BC547B
Rx : 1K8 (1 - 8 - 2 - B)
5
Construction
4. PCB tabs
6. Triacs
TRI1 : TIC206M
TRI2 : TIC206M
TR...
TRI3: TIC206M
TRI4 : TIC206M
VAC : 2X IN1 : 2X
OUT1 : 2X IN2 : 2X Remarks : Make sure the metal backside of the triacs points to the
OUT2 : 2X IN3 : 2X outputs.
OUT3 : 2X IN4 : 2X
Apply a layer of tin on the entire PCB track.
OUT4 : 2X
9VDC : 2X
If you want to switch more than 1,5A per output, then the triacs
need cooling.
You can also use terminal con-
nectors.
You therefore have to mount heatsinks to the triacs. If you mount all
the triacs on the same heatsink, then you have to isolate the
5. LED. Watch the polarity! triacs with mica plates and special plastic washers.
The PCB tacks interconnecting the output connectors and the triacs
LD1
are not protected by the red solder mask.
LD2
5mm Red
We advise you to strengthen these in soldering a copper wire of
LD3 LD1
1,5mm2 along the whole print. We must take into account that the
LD4
CATHODE
entire load current goes through these connections; so up to 4A, if
the triacs are cooled !
6
Connection
7. Connection
Connect the minus side of the inputs to the open collector outputs of the interface card(s) (see fig.1).
Connect the positive side of all inputs with a control voltage (ex. +9Vdc to 12Vdc). The negative (GND)
of the control voltage must also be connected to the Common (or GND) of the open collector card.
Keep in mind that EACH input of the triac card takes about 12mA from the power supply !
This control voltage has to be COMPLETELY ISOLATED!
To supply the card a separate supply must be used of 9Vdc (see fig. 1)
Connect the supply for the loads to the points VAC. It may range between 24 and 240 VAC.
Fig.1
7
Connection
ATTENTION : everything on the print from the optocouplers to the output side is subjected to this
(eventual) hazardeous voltage.
The loads are connected to OUT1 and OUT4.
Interferences on the mains are possible because of the fact that the load switching does not necessarily
takes place on the zero crossing point of the AC. When this should disturb the computer functioning, we
advise you to install the triac card near the loads to be switched.
8
Schematic diagram
8. Schematic diagram.
9
PCB
9. PCB
10
11
VELLEMAN Components NV
Legen Heirweg 33
9890 Gavere
Belgium Europe
www.velleman.be
www.velleman-kit.com
Modifications and typographical errors reserved
© Velleman Components nv.
H2634IP - 2003 - ED1
5 410329 310264
12 [ Pobierz całość w formacie PDF ]