YASKAWA GA700 Technical Manual page 715

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F1-13: Encoder 1 Gear Teeth 2
No.
Name
(Hex.)
F1-13 PG 1 Gear Teeth 2
(038C)
The drive calculates the motor speed using the following expression when the number of gear teeth is set.
Note:
The gear ratio is 1 when F1-12 = 0 or F1-13 = 0.
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F1-14: Encoder Open-Circuit Detect Time
No.
Name
(Hex.)
F1-14 PG Open-Circuit
Detection Time
(038D)
A PGo is triggered when the drive does not detect output pulses from the encoder for longer than the time set in
F1-14.
Note:
Faults such as ov [DB Bus Overvoltage] and oC [Overcurrent] may occur depending on the motor speed and load conditions.
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F1-18: Deviation 3 Detection Selection
No.
Name
(Hex.)
F1-18 Deviation 3 Detection
Selection
(03AD)
A dv3 is triggered when the following two conditions are detected simultaneously for the number of times set for
F1-18.
• The torque reference and acceleration are in opposite directions. (for example, torque reference is in forward run
and the acceleration is in a negative direction)
• Difference between the speed reference and the actual motor speed is greater than 30%.
Note:
• Reference the setting value for E5-11 [Encoder Z-Pulse Offset] and the δθ value found on the motor nameplate. A common cause for a
dv3 fault is the incorrect setting of E5-11.
• This function is disabled when F1-18 = 0.
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F1-19: Deviation 4 Detection Selection
No.
Name
(Hex.)
F1-19 Deviation 4 Detection
Selection
(03AE)
A dv4 [Inversion Prevention Detection] is triggered when the pulses in a reverse direction to the speed reference
are input for longer than the time set in F1-19.
Note:
• Reference the value set in E5-11 [Encoder Z-Pulse Offset] and the δθ value found on the motor nameplate. A common cause for a dv4
fault is the incorrect setting of E5-11.
• Set F1-19 = 0 when using a drive in an application in which the motor is rotated from the load side in the direction reverse to the speed
reference.
YASKAWA ELECTRIC SIEP C710617 01B YASKAWA AC Drive GA700 Technical Manual
V/f CL-V/f OLV CLV AOLV
Sets the number of gear teeth (gear ratio) between the motor and encoder, in
combination with F1-12 [PG 1 Gear Teeth 1]. Parameter F1-13 is set with
the number of gear teeth for the load side.
V/f CL-V/f OLV CLV AOLV
Sets the detection time for PGo [PG Disconnect].
V/f CL-V/f OLV CLV AOLV
Sets the number of rotations to detect scenarios in which the torque
reference and rate of acceleration are inverted, which function as the
detection conditions for dv3 [Inversion Detection].
V/f CL-V/f OLV CLV AOLV
Sets the number of pulses used to detect dv4 [Inversion Prevention
Detection].
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
11.7 F: Options
Default Setting
(Range)
0
(0 - 1000)
Default Setting
(Range)
2.0 s
(0.0 - 10.0 s)
Default Setting
(Range)
10
(0 - 10)
Default Setting
(Range)
128
(0 - 5000)
11
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