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A1SJH
Mitsubishi A1SJH User Manual
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11. TROUBLESHOOTING
11 - 9
MELSEC-
A
11.2.8
Flowchart used when a program cannot be written to the PLC CP
U
The f
ollowing shows the corrective m
eas
ures when a program
cannot be written to
the PLC CPU.
Program cannot
be
written to the PLC CPU
Is the
RUN/STOP
keys
witch
set
to STOP?
Is the memo
r
y protect
switc
h OFF?
Is a R
OM
memory cassette
used?
Counstult your nearest Mit-
subishi representative.
End
Can the program be
written?
Can the program be
written?
Can the program be
written?
Can the program be
written?
Replace the E
2
PROM
memory cassette or use a
built-in RAM
Switch OFF the memory
protect.(M.PRO OFF)
Set the
RUN/STOP
keys
witch
to ST
OP
Replace the PLC CPU.
RUN
STOP
YES
NO
NO
YES
NO
OFF
NO
YES
YES
NO
YES
NO
124
126
Table of Contents
Table of Contents
10
Overview
16
Features
17
System Configuration
18
Overall Configuration
19
Total Configuration of Anshcpu
19
Total Configuration of A1SJHCPU(S8)
21
Cautions on Configuring a System
23
Hardware
23
Software Packages
26
System Equipment
28
General Description of System Configuration
38
Outline of Anshcpu Configuration
38
Outline of A1SJHCPU(S8) Configuration
39
Specifications
40
Anshcpu MODULE
41
Performance Specifications
41
Outline of Anshcpu Operation Processing
43
Operation Processing in the RUN, STOP, PAUSE Status
45
Operation Processing When a Momentary Power Interruption Occurs
46
Self-Diagnosis
47
List of Devices
49
List of Parameter Setting Ranges
51
Memory Capacity Settings (Main Programs, File Registers, Comments, Etc.)
53
Functions
55
Handling Precautions
56
Part Identification and Setting
57
Part Identification of Anshcpu, A1SJHCPU (S8)
57
I/O Control Switch Setting
60
Memory Write Protect Switch Setting
60
Clearing Latched Data
62
Power Supply Module
63
Specifications
63
Base Unit and Extension Cable
68
Specifications
68
Specifications of Base Units
68
Specifications of Extension Cables
69
Application Standards for Extension Base Units (A1S52B(S1), A1S55B(S1), A1S58B(S1), A52B, A55B, A58B)
69
Installing and Removal On/From a DIN Rail
76
Memory Cassette and Battery
78
Memory Cassette
78
Specifications
78
Handling Precautions
79
Installing and Removing a Memory Cassette
80
Writing a Sequence Program to a Memory Cassette
82
Memory Write-Protect Setting for an A2SNMCA-30KE
83
Battery
84
Specifications
84
Installation of the Battery
84
Loading and Installation
85
Consideration for Safety
85
Installation Environment
88
Calculation of Heat Generated by the Programmable Controller System
88
Module Mounting
91
Mounting Instructions
91
Installation
95
Installing and Removing the Dustproof Cover
95
Wiring
97
Wiring Instructions
97
Wiring to Module Terminals
100
Precaution When Connecting the Uninterruptive Power Supply (UPS)
100
Emc Directive and Low-Voltage Instruction
101
Requirements for Compliance to EMC Directive (89/336/EEC)
101
EMC Standards
101
Ferrite Core
107
Noise Filter (Power Supply Line Filter)
107
Requirement to Conform to the Low-Voltage Instruction
108
Standard Applied for Ans Series
108
Precautions When Using the Ans Series
109
Power Supply
109
Control Box
110
Module Installation
110
Grounding
111
External Wiring
111
10. Maintenance and Inspection
112
Daily Inspection
113
Periodic Inspection
114
Replacement of Battery
115
Service Life of Battery
115
Battery Replacement Procedure
116
11. Troubleshooting
117
Basic Troubleshooting
117
11. Troubleshooting
118
Troubleshooting Flowcharts
118
Flowchart Used When the POWER LED Goes off
119
Flowchart Used When the RUN LED Goes off
120
Flowchart Used When the RUN LED Flashes
121
Flowchart Used When the ERROR LED Is Lit
122
Flowchart Used When the ERROR LED Flashes
123
Flowchart Used When the Output Load of the Output Module Does Not Come on
124
Flowchart Used When a Program Cannot be Written to the PLC CPU
125
Error Code List
126
Error Codes
126
I/O Connection Troubleshooting
132
Input Circuit Troubleshooting
132
Output Circuit Failures and Corrective Action
134
Appendices
135
Appendix 1 Instructions
135
Appendix 1.1 Caution When Performing a Write While Running Dedicated Instruction
139
Appendix 2 Special Relay, Special Register List
140
Appendix 2.1 Special Relay List
140
Appendix 2.2 Special Registers D
152
Appendix 3 Precautions When Switching from Anscpu to Anshcpu
170
Appendix 3.1 Dissimilarities between A1SHCPU and A1SCPU
170
Appendix 3.2 Dissimilarities between A2SHCPU(-S1) and A2SCPU
171
Appendix 3.3 Precautions When Switching the Model
171
Appendix 3.3.1 PLC Type Setting
171
Appendix 3.3.2 the Precaution When Performing the ROM Cutoff
171
Appendix 3.3.3 the Precaution When Utilizing the Sequence Program
172
Appendix 3.3.4 System Comfirmation by High-Speed Instruction Processing
172
Appendix 3.3.5 Handling Conventional Memory Cassettes
172
Appendix 3.3.6 Switching from the A2SMCA-14KP (When A2SCPU + A2SMCA-14KP Has Been Used)
173
Appendix 3.3.7 Restrictions in Microcomputer Programs
173
Appendix 3.3.6
173
Outside Dimensions
174
Appendix 4.1 CPU Module
174
Appendix 4.1.1 A1SHCPU/A2SHCPU(S1) Module
174
Appendix 4.1.2 A1SJHCPU Module
174
Appendix 4.3 Main Base Units
176
Appendix 4.3.1 A1S32B Main Base Unit
176
Appendix 4.3.2 A1S33B Main Base Unit
176
Appendix 4.3.3 A1S35B Main Base Unit
176
Appendix 4.4 Extension Base Units
178
Appendix 4.4.1 A1S65B Extension Base Unit
178
Appendix 4.4.2 A1S68B Extension Base Unit
178
Appendix 4.4.10 A1S58B-S1 Extension Base Unit
182
Appendix 4.5 Memory Cassette
183
Appendix 4.5.1 Ansmca-[ ] Memory Cassette
183
Appendix 4.5.2 Ansnmca-[ ] Memory Cassette
183
Appendix 4.6 Memory Write Adapter
184
Appendix 4.6.1 A6WA-28P Memory Write Adapter
184
Appendix 4.6
184
Transportation Precautions
184
Appendix 5.1 Controlled Models
184
Appendix 5.2 Transport Guidelines
184
5
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Mitsubishi A1SJH Specifications
General
Brand
Mitsubishi
Model
A1SJH
Category
Controller
Language
English
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