Parameter Details
11
11.7 F: Options
YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual 823
■ F1-08: Overspeed Detection Level
No.
(Hex.)
Name Description
Default
(Range)
F1-08
(0387)
Overspeed Detection
Level
Sets the detection level of oS [Overspeed] as a percentage when the
maximum output frequency is 100%.
115%
(0 - 120%)
When the motor speed is more than the value set in F1-08 for longer than the time set in F1-09 [Overspeed
Detection Delay Time], the drive will detect oS.
■ F1-09: Overspeed Detection Delay Time
No.
(Hex.)
Name Description
Default
(Range)
F1-09
(0388)
Overspeed Detection
Delay Time
Sets the length of time that the speed feedback must be more than the F1-08
level to cause an oS [Overspeed].
Determined by A1-02
(0.0 - 2.0 s)
When the motor speed is more than the value set in F1-08 [Overspeed Detection Level] for longer than the time
set in F1-09, the drive will detect oS.
■ F1-10: Speed Deviation Detection Level
No.
(Hex.)
Name Description
Default
(Range)
F1-10
(0389)
Speed Deviation
Detection Level
Sets the detection level of dEv [Speed Deviation] as a percentage when the
maximum output frequency is 100%.
10%
(0 - 50%)
When the speed deviation between the frequency reference and the actual motor speed is more than the value set
in F1-10 for longer than the time set in F1-11 [Speed Deviation Detect DelayTime], the drive will detect dEv.
■ F1-11: Speed Deviation Detect DelayTime
No.
(Hex.)
Name Description
Default
(Range)
F1-11
(038A)
Speed Deviation
Detect DelayTime
Sets the length of time that the difference between the frequency reference
and speed feedback must be more than the level in F1-10 to cause a dEv
[Speed Deviation].
0.5 s
(0.0 - 10.0 s)
When the speed deviation between the frequency reference and the actual motor speed is more than the value set
in F1-10 [Speed Deviation Detection Level] for longer than the time set in F1-11, the drive will detect dEv.
■ F1-12: Encoder 1 Gear Teeth 1
No.
(Hex.)
Name Description
Default
(Range)
F1-12
(038B)
Encoder 1 Gear Teeth
1
Sets the number of gear teeth on the motor side. This parameter and F1-13
[Encoder 1 Gear Teeth 2] set the gear ratio between the motor and encoder.
0
(0 - 1000)
After you set the number of gear teeth, the drive uses this formula to calculate the motor speed:
Note:
When F1-12 = 0 or F1-13 = 0, the gear ratio is 1.
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