10
2
INSTALLATION & CONNECTION
10
IN
ST
A
LL
A
TIO
N
&
C
O
N
N
EC
TIO
N
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
TM700 inside
DC
Relay
Vext
Supply an external power source for a relay drive
Output data
Tr
OFF
OFF
ON
ON
●
Output transistor status
A1
A7
A2 to 6
A8 to 10
Vext
PLC etc.
Plus common connection
power
supply
power source (Vext).
COM2
Push
Toggle
Relay
+12V
TTL open collector
TM700 inside
IN
IN
Open
→
OFF
Short
→
ON
- The external element is required to withstand Ic=10mA.
- Leakage from the external element is required to be 100μA or below.
B2 to 6
B8 to 12
B7
B1
(ON when IN is HI)
switch
switch
Содержание TM700
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