Mitsubishi FX2-16E series, User Manual

Page: 247 / 520

FX
3U
Series Programmable Controllers
User’s Manual - Hardware Edition
239
12 Output Wiring Procedures
12.3 External Wiring of Transistor Output (Sink/Source) Type
11
Hi
gh
-Speed
Counters
12
O
utput W
iri
ng
13
W
iri
ng for
V
ari
ous
Us
es
14
Te
st R
un,
Mai
nten
ance, T
roubl
es
hooti
ng
15
IInput/Output Pow
ered
Exte
nsi
on U
nit
s
16
Input/O
utput
Extens
ion
Bl
ock
s
17
Extension Power Suppl
y
Un
it
18
Other Extens
ion
Uni
ts an
d
Opti
ons
19
D
isplay M
od
ule
20
Te
rminal
Bl
oc
k
12.3.3 Handling of transistor output
1. Output terminals
One, 4 or 8 transistor output points are covered by one common terminal.
Sink output
Connect each COM (number) terminal to the minus side of
the load power supply.
The COM terminals are not connected internally.
Source output
Connect each +V (number) terminal to the plus side of the
load power supply.
The +V terminals are not connected internally.
2. External power supply
For driving the load, use a smoothing power supply of 5 to 30V DC that can output current two or more times
the rated current of the fuse connected to the load circuit.
3. Insulation of circuit
The internal circuit of the PLC and the output transistor are insulated with a photocoupler.
The common blocks are separated from one another.
4. Display of operation
When any photocoupler operates, the corresponding LED is lit and corresponding output transistor turns ON.
PLC
Load
DC power
supply
Fuse
Y 0
COM1
Load
Fuse
COM2
Sink output type
DC power
supply
Y 1
Y 5
Y 4
PLC
Load
DC power
supply
Fuse
+V0
Load
DC power
supply
Fuse
+V1
Source output type
Y 0
Y 1
Y 5
Y 4