Unipulse F331, Operation Manual

Page: 18 / 88

9
2 CONNECTION
9
CONNECTION
Chapter
2
2-5.
Connection of the external output (sink type)
The external output circuit is operated through an open collector. 6 is the common terminal.
The open collector output capacity is 120mA and the withstand voltage is up to 30V.
- Equivalent circuit
2-6.
Connection of the external input
- Equivalent circuit (input)
CAUTION
- Avoid applying external voltages to the signal input circuit.
- Use external elements which withstands Ic=10mA or above.
- Leakage current from external element must be 30
μ A or below.
COM
Spark killer
Load
F331 Inside
Spark killer
DC
Varistor
Load
Relay
Vext
Supply an external power source for a relay drive
Output data Tr
OFF OFF
ON ON
●
Output transistor status
9, 10
6
Power
supply
AC
Power
supply
power source (Vext).
Vcc
←
Inside
Ic=Approx.6mA
COM
Push
switch
Toggle
switch
Relay
contact
Transistor
+12V
IN
IN
TTL open
collector output
Outside
→
F331
(ON when IN is ‘H’)
7, 8
6