Showa DS-6200, Operating Manual

Page: 23 / 150

2 INSTALLATION & CONNECTION
22
INSTALLATION & CONN
ECTION
Chapter
2
■
External I/O connection
How to connect external output (Sink type)
The external output circuit is operated through an open collector. A1(A7) COM1 is the common
terminal. The open collector output capacity is 30mA and the withstand voltage is up to 30V.
-
Equivalent circuit
How to connect external input
(minus common connection of no-voltage contact input type)
A signal is inputted to the signal input circuit by short-circuiting or opening the input terminal and
the COM2 terminal. Short-circuiting is effected by means of a contact (such as a relay or a switch)
or a noncontact (such as a transistor or an open-collector TTL).
COM1
Spark Killer
Load
DS-6200 Inside
Spark Killer
DC
Varistor
Load
AC
Relay
Vext
A2~6
A8~10
A1
A7
Power
Supply
Power
Supply
Supply an external power source for a relay
drive power source (Vext).
Output Data Tr
OFF OFF
ON ON
●
Output Transistor Status
COM2
Relay
+12V
DS-6200 Inside
IN
IN
Open → OFF
Short
→
ON
B2~6
B8~12
B7
B1
Push
Switch
Toggle
Switch
TTL Open
Collector
- The external element is required to withstand Ic=10mA.
- Leakage from the external element is required to be
100
μ
A or below.