Build
your own Voltage Controlled Relay (VCR)
Input
select 0-5VDC, 0-10VDC or 0-XVDC (OEM), 4-20mA, 0-20mA; Where
XVC custom input voltage see example B for 0-30VDC.
Input level trip set point multi-turn
trimmer adjustment (via P1).
Differential set point multi-turn trimmer adjustment (Via P2).
Set Input select
to 0-10V
LED, relay on indicator.
1.
Input level set point multi-turn
trimmer adjustment (via P1).
2.
Differential set point multi-turn trimmer adjustment (Via P2).
3.
Input select: 0-5VDC, 0-10VDC, 4-20mA
4.
LED, relay on indicator.
Example
A:
Control
electric motor via the relay with input voltage greater then
4VDC. When the input voltage drop below 2VDC (equal to 50% of
4VDC trip point) turn off the relay therefore the motor.
*
Set Input select
to 0-10V
*
Set Input trip level: Adjust the trip set point multi-turn
trimmer adjustment (via P1) to 4VDC. Measured between ground to test point
1 (TP1).
*
Set
Input Cut out level: Adjust the differential set point multi-turn trimmer adjustment (Via
P2) to 2VDC. Measured between ground to test point 2 (TP2).
Mount,
connect wires and you done.
|