The analog input value is abnormal.
The external DC24V is normal.
Supply  input power source of external 
DC24V.
No
Yes
PE ground is normal.
Modify PE ground correctly by referring 
wiring method from instructions.
No
Yes
The parameter setting is normal.
(Permission of driving channels, 
Input range setting)
Modify correctly by referring parameter 
setting method from instructions.
No
Yes
External terminal wiring is normal.
Modify correctly by referring wiring method 
from instructions.
No
Yes
Call our near agency or A/S center.