Okuma Alarm-D 4274 User reserve code
Output variable VDOUT  is executed after assigning data to it. That is, this alarm occurs when “VDOUT  = oooo” data is executed. Designation is possible by programmed commands or commands input from the keyboard.
Numerical value assigned to the output variable
Probable Faulty Locations
Alarm D if ten or more common variables V1 are designated
N100 IF[V1 LT 10]N200
N101 VDOUT= 10
Measures to Take
Check the process and conditions how “VDOUT  = oooo” is used in the program.
User task 2