Chapter 14 Troubleshooting; Troubleshooting Procedure; Troubleshooting Using The Leds - Mitsubishi Electric MELSEC iQ-R Series User Manual

14
TROUBLESHOOTING
This chapter describes details of error occurred by using the Motion module and troubleshooting.
14.1
When a trouble occurs, execute the troubleshooting in the order shown below.
1.
Check that each module is mounted correctly.
(MELSEC iQ-R Module Configuration Manual)
2.
Check the LEDs of the power supply module and CPU module.
(MELSEC iQ-R CPU Module User's Manual (Startup))
3.
Check the LED status of each module to confirm whether an error does not occur in a module. (Page 603

Troubleshooting using the LEDs)

4.
Check whether an error does not occur in a module using the module diagnostics of an engineering tool. (Page 605
Troubleshooting using the module status)
Troubleshooting using the LEDs
Primary diagnostics can be executed without the engineering tool by checking the status of the LED display, so that the range
of the trouble cause can be reduced.
The following shows the correspondence relation between each LED and status of the Motion module.
LED display
: OFF, : ON, ●: Flashing
Name
RUN LED
ERR LED
PROGRAM RUN LED
D LINK LED
SD/RD LED
CARD READY LED
CARD ACCESS LED
L ER LED
LINK LED
*1 The LED display differs during software installation. For details, refer to the following.
Page 355 Software Installation to the Own Module
*2 Includes cyclic transmission and transient transmission data for CC-Link IE TSN.
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Troubleshooting Procedure

Description
*1
Displays the operation status.
Displays the error status.
Displays the PLC READY status.
Displays the data link status.
Displays the data transmit status.
Displays the SD memory card status.
Displays the access status of the SD
memory card.
Displays the port status.
Displays the link status.
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LED display Status
RUN LED Normal operation
RUN LED Error occurring, initializing
ERR LED Error occurring
ERR LED● 200 ms interval: Error occurring
500 ms interval: Data link error station detected
ERR LED Normal operation
*1
PROGRAM RUN LED PLC READY signal [Y0] ON
PROGRAM RUN LED PLC READY signal [Y0] OFF
D LINK LED Data link (cyclic transmission being performed)
D LINK LED● Data link (cyclic transmission stopped)
D LINK LED Data link not performed (disconnection)
SD/RD LED Data
SD/RD LED Data
CARD READY LED SD memory card usable
CARD READY LED● Preparing
CARD READY LED Not inserted
CARD ACCESS LED SD memory card being accessed
CARD ACCESS LED SD memory card not accessed
P1 L ER LED Abnormal data received
L ER LED Normal data received
P1 LINK LED Link-up
LINK LED Link-down
*2
transmission in progress
*2
transmission not in progress
14 TROUBLESHOOTING
14.1 Troubleshooting Procedure
14
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