Mitsubishi Electric MELSEC-FX3S Series - Troubleshooting; PLC Version Number Check; Checking Installation; Wiring Check

G-21
6 Troubleshooting
6.1 PLC Version Number Check
FX 3S /FX 3G /FX 3GC /FX 3U /FX 3UC PLC User's Manual - Analog Control Edition
FX3G-1DA-BD (1-channel Analog Output)
A
Common Items
B
FX
3U
-4AD
FX
3UC
-4AD
C
FX
3U
-4AD-ADP
D
FX
3G
-2AD-BD
E
FX
3U
-4DA
F
FX
3U
-4DA-ADP
G
FX
3G
-1DA-BD
H
FX
3U
-3A-ADP
I
FX
3U
-4AD-PT
-ADP
J
FX
3U
-4AD-PTW
-ADP
6. Troubleshooting
This chapter describes the troubleshooting methods and error status.
If analog data is not output, or if the proper analog value is not output, check the following items:
• Version number of PLC
• Installation
• Wiring
• Special devices
• Programs
• Error status
6.1 PLC Version Number Check
• Any versions (from Ver. 1.00 (Initial version) to the latest version) of the FX3S Series are compatible.
• Check the version number of the FX
3G Series PLC. The version number should be 1.10 or later.
→ For a detailed description of the version check method,
refer to A. Common Items Subsection 5.1.2.
6.2 Checking installation
Confirm that the 1DA-BD is attached correctly to the main unit. Confirm also that the POW indicator lamp of
the 1DA-BD is lit correctly.
For installation details, refer to the following manual.
→ Refer to FX
3S User’s Manual-Hardware Edition.
→ Refer to FX
3G User’s Manual-Hardware Edition.
6.3 Wiring Check
Check the following items for wiring:
1. Analog output line
Use the 2-core twisted shielded pair cable for the analog output line. In addition, be sure to separate the
analog output line from other power lines or inductive lines.
→ For a detailed description of wiring, refer to Chapter 3.
6.4 Special Device Check
Check whether the special devices for the 1DA-BD are being used correctly:
1. Output mode switching
Verify that the special device for switching the output mode is correctly set.
Turn off the device to set the output mode to the voltage output mode. Turn on the device to set the output
mode to the current output mode.
2. Output setting data
Check that the special device is correctly selected. This special device should be selected depending on the
connected position and the channel.
3. Error status
Check that no error is detected in the 1DA-BD.
If an error is detected, check the details of the error, and then check the wiring and programs.
→ For a detailed description of special devices, refer to Chapter 4.