EasyManuals Logo

LSIS XEC-DR64H User Manual

LSIS XEC-DR64H
236 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #170 background imageLoading...
Page #170 background image
Chapter 9. Installation and Wiring
9-5
(3) Fail safe countermeasure in case of PLC error
Error of PLC CPU and memory is detected by self diagnosis but in case error occurs in IO control part, etc., CPU can
detect the error. At this case, though it is different according to status of error, all contact point is on or off, so safety
may not be guaranteed. Though we do out best to our quality as producer, configure safety circuit preparing that error
occurs in PLC and it lead to breakdown or accident.
System example
Main
unit
Input
16
point
Input
16
point
Input
16
point
Input
16
point
Output
16
point
Output
16
point
Equip output module for fail safe to last slot of system.
[Fail safe circuit example]
Since P80 turn on/off every 0.5s, use TR output.
F0093
P80
P80
0.5s
0.5s
P80
P81
~
P8F
24V
0V
T1 T2
MC
-
+
DC24
MC
T1
T2
L
L
External load
CPU unit
Output module
On delay timer
Off delay timer
Output module for fail safe

Table of Contents

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the LSIS XEC-DR64H and is the answer not in the manual?

LSIS XEC-DR64H Specifications

General IconGeneral
BrandLSIS
ModelXEC-DR64H
CategoryController
LanguageEnglish

Related product manuals