Check wiring, installation, and switch settings.
Not parallel with or proximate to high voltage lines
or strong power lines.
Branch lines (drop cable) are within 400 mm.
Total length is less than 1 km.
No damage or breaks in cables.
Connectors are securely assembled.
Connectors are securely connected and locked.
Insulation covers are put on connectors.
Securely tighten the module retention screws.
A ground line is connected with the GND terminal.
Memory module is appropriately installed.
No other cables than the communication cable and
DC input cables are input in the same duct.
Basic rack panel is appropriately installed.
Mode switches are appropriately set.
Station number switches are appropriately set (00 to 77(8)).
Termination resistance switches are appropriately set.
Shield ground switches are appropriately set.
Parameters are appropriately set.