FX
3U
Series Programmable Controllers
User’s Manual - Hardware Edition
247
12 Output Wiring Procedures
12.4 External Wiring for Triac (SSR) Output 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
12.4.3 External wiring precautions
1. Protection circuit for load short-circuits
A short-circuit at a load connected to an output terminal could
cause burnout at the output element or the PCB. To prevent
this, a protection fuse should be inserted at the output.
2. Micro current load
The PLC’s internal Triac output circuit is equipped with a turn-
off C-R absorber. When connecting a very low current load of
"0.4VA/100V AC or less, or 1.6VA/200V AC or less", please
connect a surge absorber parallel to the load.
Select the rated voltage of a surge absorber that is suitable for
the load being used. Refer to the table below for other
specifications.
Reference
3. Interlock
For loads such as forward/reverse contactors, etc., where a
hazardous condition could result if switched ON
simultaneously, an external interlock should be provided for
interlocking the PLC’s internal programs as shown to the
right.
4. In-phase
PLC output contacts (*) should be used in an "in-phase"
manner.
Item
Standard
Static electricity capacity
Approx. 0.1
µ
F
Resistance value
Approx. 100 to 200
Ω
Manufacturer
Model name
Manufacturer
Model name
Okaya Electric Industries Co., Ltd. CR-10201
Rubycon Corporation
250MCRA104100M B0325
PLC
COM1
Load
Fuse
Y 0
Micro current load
Surge
absorber
Inter-
lock
Normal
rotation
Reverse
rotation
Limit of normal
rotation
PLC output
element
Limit of reverse
rotation
Bad
*
*
*
*
Good
Содержание FX2-16E series
Страница 2: ......
Страница 8: ... 6 Safety Precautions Read these precautions before use MEMO ...
Страница 508: ...FX3U Series Programmable Controllers User s Manual Hardware Edition 500 C Character code C 1 ASCII Code Table MEMO ...
Страница 510: ...502 FX3U Series Programmable Controllers User s Manual Hardware Edition D Discontinued models MEMO ...
Страница 519: ......