Troubleshooting An Analog Output Module - Hitachi HSC-2100 Hardware Manual

6.2.6 Troubleshooting an analog output module

Power supply module's POWER ON LED not lit
Remote I/O station module's RI/O LED not lit
Support program not loaded for the S10/2α
controller with the analog input module installed in
it
Analog output module not registered in the CPU
Output wiring error
GND terminal not connected to mount-base FG
terminal
Output data error
Remote I/O station module's I/O point count setting
other than 16
(This check item is applicable only to the following
module models: LWA450 and LWA460.)
None of the above
Check item
Troubleshoot the power supply module
according to the instructions given in
Subsection 6.2.1.
Troubleshoot the remote I/O station
module according to the instructions given
in Subsection 6.2.2.
Load the support program to the S10/2α
controller's CPU.
(In the case of S10mini CPUs and S10V
LPUs, no such loading is necessary.)
Register a data area for the analog output
module by using an available tool.
Correct the output wiring according to the
information given in Chapters 2 and 4.
Connect the GND terminal to the FG
terminal provided on the mount base.
Correct the program.
Set the I/O point count to 16.
Replace the analog output module with a
new one.
6-11
6 MAINTENANCE
Remedial action