Performing Diagnostics - Mitsubishi Electric MELSEC iQ-R Series User Manual

Performing diagnostics

The following shows the procedure for hardware diagnostics.
Preparation
Perform the following before the hardware diagnostics.
1.
Mount the modules.
Mount a power supply module and a C Controller module on a base unit.
The hardware diagnostics can be performed even when a C Controller module is not mounted on the CPU
slot.
To perform the hardware diagnostics with the module mounted on the slot other than the CPU slot, mount
another CPU module on the CPU slot. Although an error may be detected on the mounted CPU module, the
hardware diagnostics can be performed.
2.
Check the wiring.
• Check that the power supply cable is wired properly.
• Do not connect any cable other than power supply cable.
3.
Make the necessary preparations for each diagnostic.
4.
Power ON.
• Check that the power supply voltage is within the range of the specifications.
• Check that the RESET/STOP/RUN switch is put on the STOP position.
Preparation required for each diagnostic
Perform the following before starting each mode (0 to 7) of hardware diagnostics.
Mode Description
0 Make all of the preparations required for Mode 1 to 6.
1 Back up the data in the program memory, data memory, and device/label memory.
2 Check that no cable is connected to the Ethernet port.
3 Check that no SD memory card is inserted.
4 Connect a cable to the RS-232 connector.
The connector pin arrangement and cable connection are shown below.
(1)
1
6
2
7
3
8
4
9
5
(1) Connector
(2) Pin number
(3) Abbreviation of signal code
(4) Cable connection
5 Check that no cable is connected to the USB connector.
6 No preparation required for this mode.
(2) (3)
1 CD(DCD)
2 RD(RXD)
3 SD(TXD)
4 ER(DTR)
5 SG
6 DR(DSR)
7
RS(RTS)
8
CS(CTS)
9 CI(RI)
(4)
6 PROCEDURE BEFORE OPERATION
6.2 Performing Hardware Diagnostics
6
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