Okuma Alarm-B 2239 Mistake in F command

Okuma Alarm-B 2239 Mistake in F command
Numerical value of an F command in other than the G04 mode is either negative or zero.
When the numerical value of an F command in the G04 mode is converted into “0.01s.” unit, it does not satisfy the following
inequality: 0 < F<=99999999Object
SYSTEM

Code
1->F value does not satisfy:-99999999<=F<=999999992->F value is either negative or zero.

Probable Faulty Locations
F command
Program Example:

G01 X50 Z50 F-0.2 -- [Code]2
G04 F1000000 -- [Code]1
^^^^^^^^^^100000000 unit when converted into a number of 0.01s.

Measures to Take
Designate only a number within the specified range.