5
VM206
USER MANUAL
Heavy duty relay
Power
supply
12 VDC / 100 mA max.
For inductive loads,
add optional VDR
(e.g., Velleman VDR300)
Status LEDs
8 A / 250 VAC
NO / NC
Relay output
Start - Reset
pushbuttons
ICSP
connector
USB
Start - Stop
Buffered inputs
accept dry
contact or
open collector
fig. 2
The VM206 is now programmed!
You can check the operation by pressing the TST1 (Start) button.
The ‘RELAY ON’ LED indicates the operation.
You can stop the timer operation by pressing the TST2 (Reset) button.
To get the relay functioning as well, you need to connect the 12V supply to the SK1 screw connector.
You can disconnect the USB cable and test the timer operation as a stand-alone with the 12V supply.
On the board there are two inputs; IN1 and IN2 for remote switches or NPN transistors to control the timer
operation. The switch or transistor connected between IN1 and GND acts as the Start button (TST1) and the
switch or transistor connected between IN2 and GND acts as the Reset button (TST2).
Relay output
The relay contacts are connected to the SK3 connector:
• COM: Common
• NO: Normally Open
• NC: Normally Closed
On the board, there is space provided for a transient suppressor (option) to reduce contact wear. Mount VDR1
for suppression of the NC contact. Mount VDR2 for suppression of the NO contact.
