12.7 F: Options
842 YASKAWA SIEPC71061737D GA800 Drive Technical Reference
■ F1-06: Encoder 1 Pulse Monitor Scaling
No.
(Hex.)
Name Description
Default
(Range)
F1-06
(0385)
Encoder 1 Pulse Monitor
Scaling
Sets the ratio between the pulse input and the pulse output of the encoder as a 3-digit number. The
first digit is the numerator and the second and third digits set the denominator.
001
(001 - 032, 102 - 132 (1 - 1/
32))
When the setting value is a 3-digit value (xyz), the dividing ratio is (1 + x)/yz
For example, when F1-06 = 032, the dividing ratio is 1/32.
Note:
When you use a single-pulse encoder, the dividing ratio for the monitor signal is 1:1
■ 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 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 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)
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