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Mitsubishi Electronics AJ65SBT-64AD 6.4 Troubleshooting for the Case where the "ERR." LED of the Master Station Flickers

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MELSEC-A

6 TROUBLESHOOTING

6.4 Troubleshooting for the Case where the "ERR." LED of the Master Station Flickers

The "ERR"LED on the

master station is flashing

Do the parameter

setting and the installed system

configuration match

properly?

Are the master

station link special registers

SW0080 to SW0083 (other station

date link status)

turned on?

Are the master

station link special registers

SW0098 to SW009B (station

number overlap status)

turned on?

Check the module for which

SW0098 to SW009B are on

Are the

station number setting

switches set

properly?

Set the station number setting

swiches properly

Revise the parameter settings

or installed system configuration

Master station malfunction

Check the module for which

SW0080 to SW0083 are on

Is the power on?

Turn on the power

Corresponding module

malfunction

Turn on the power again

Is the "POWER" LED lit?

Is the supplied

power within the specified

range

Set the supplied voltage to

within the specified range

Corresponding module

malfunction

1 2 3

Check on master station side

Check on slave station side

N

N

N

N

Y

Y

Y

N

N

Y

Y

Y

Y

N

Contents

Main SAFETY PRECAUTIONS ! CAUTION [Design Precautions] ! DANGER Page Page Page Page Page Page A - 8 Page Page 1 1 OVERVIEW Page 2 - 1 2 SYSTEM CONFIGURATION 2 2 SYSTEM CONFIGURATION This chapter describes the system configurat ion for use of the AJ65SBT-64AD. 2.1 Overall Configuration The overall configuration for use of the AJ6 5SBT-64AD is shown below. Page 3 3 - 1 3 SPECIFICATION This chapter provides the specifications of the AJ65SBT-64AD. 3.1 General Specification 3.2 Performance Specification Table 3.2 indicates the performance specif ications of the AJ65SBT-64AD. Table 3.2 Performance specification Page 3.3.1 Voltage input characteristics Fig. 3.1 Voltage Input Characteristic 3.3.2 Current input characteristics Fig. 3.2 Current Input Characteristic 3.3.3 Relationship between the offset/gain setting and digital output value (1) Resolution Fig. 3.3 Voltage Input Characteristic Accuracy (2) Relationship between the maximum resolution and digital output value 3.3.4 Accuracy Fig. 3.4 Current Input Characteristic Accuracy 3.3.5 Conversion speed 3 - 8 3.4 Function List The AJ65SBT-64AD function list is shown in t able 3.3. Table 3.3 AJ65SBT-64AD function list 3.4.1 Sampling processing 3.4.2 Moving average processing 3.5 Remote I/O Signals 3.5.1 Remote I/O signal list Table 3.4 Remote I/O Signals List 3 - 11 3.5.2 Functions of the remote I/O signals Table 3.5 explains the functions of the remote I/O signals of the AJ65SBT-64AD. Table 3.5 Remote I/O Signal Details (1/2) 3 - 12 Table 3.5 Remote I/O Signal Details (2/2) Page 3.6.2 A/D conversion enable/prohibit specification (Address RWwm) 3.6.3 Input range setting (Address RWwm+1) 3.6.4 Moving average processing count setting (Address RWwm+2) 3.6.5 CH. Digital output value (Address RWrn to RWrn+3) 4 4 SETUP AND PREPARATION BEFORE OPERATION 4.1 Pre-Operation Procedure 4.2 Precautions When Handling CAUTION 4 - 3 4.3 Name of Each Part The name of each part in the AJ65SBT-64AD is s hown. [Terminal numbers and signal names] 4 - 4 4 - 5 4.4 Offset/Gain Setting *: If the "RUN" LED is not lit, E2PROM may have failed. For details, refer to Section 6.1. A When changing the I/O conversion characteristic s, follow the procedure below. A Page Page 4.7 Data Link Cable Wiring 4.7.1 Instructions for handling the CC-Link dedicated cables 4.7.2 Connection of the CC-Link dedicated cables 4.8 Wiring 4.8.1 Wiring precautions 4.8.2 Module connection example 4.9 Maintenance and Inspection Page 5 5 PROGRAMMING 5.1 Programming Procedure 5 - 2 5.2 Program Examples This section provides the program examples of the AJ65SBT-64AD. 5.2.1 Program examples for use of the ACPU/QCPU (A mode) (FROM/TO instructions) A sequence program is used to set the network parameters. 5 - 3 5 - 4 5 - 5 5 - 6 5 - 7 5.2.2 Program examples for use of the ACPU/QCPU (A mode) (dedicated instructions) A sequence program is used to set the network and automatic refresh parameters. 5 - 8 5 - 9 5 - 10 5 - 11 5 - 12 5.2.3 Program examples for use of the QnACPU [Network parameter setting] GPPW is used to set the network and automatic r efresh parameters. 5 - 13 [Automatic refresh parameter setting] 5 - 14 5 - 15 5.2.4 Program examples for use of the QCPU (Q mode) [Network parameter setting] GPPW is used to set the network and automatic r efresh parameters. (1) Program for power-on 5 - 17 (c) Setting results The setting results of 1) to 8) are shown belo w. (d) Program example 5 - 18 (2) Program for initial data changing 6 6 TROUBLESHOOTING 6.1 Using the Remote Input Signals to Check Errors 6.2 Using the LED Indications to Check Errors 6 - 3 (5) When the AJ65SBT-64AD "L ERR." LED flic kers at fixed intervals (6) When the AJ65SBT-64AD "L ERR." LED flic kers at unfixed intervals (7) When the AJ65SBT-64AD "L ERR." LED is on 6 - 4 6.3 When the digital output value cannot be read 6 - 5 6.4 Troubleshooting for the Case where the "ERR." LED of the Master Station Flickers 1 2 3 6 - 6 1 2 3 Appendix - 1 APPENDIX APP APPENDIX Appendix1 Comparison between This Product and Conventional Product Performance Comparison between AJ65SBT-64AD and Conventional Product Page Appendix - 3 APPENDIX Appendix2 External dimension diagram The outline dimension drawing of the AJ65SBT-64AD is shown bel ow . Page INDEX Ind [A] [C] [D] [E] Page Page WARRANTY 1. Gratis Warranty Term and Gratis Warranty Range [Gratis Warranty Term] [Gratis Warranty Range] 2. Onerous repair term after discontinuation of production