Yaskawa F7 Drive Programming Manual - Manual (Page 73)

Programming 65
F1-12 Number of PG Gear Teeth 1
F1-13 Number of PG Gear Teeth 2
Setting Range: 0 to 1000
Factory Default: 0
Parameter F1-12 and F1-13 sets the gear ratio between the motor shaft and the encoder (PG) according to the following formula:
A gear ratio of 1 will be used if either of these parameters is set to zero. This function is not available in Flux Vector control
(A1-02 = 3).
F1-14 PG Open-Circuit (PGO) Detection Time
Setting Range: 0.0 to 10.0 seconds
Factory Default: 2.0 seconds
Parameter F1-14 sets the time from when the pulse generator (PG) signal is missing to when the fault signal is displayed on the
Drive. The stopping method when a “PGO” fault is detected is selected by parameter F1-02. If a speed reference is commanded,
but the motor is physically locked, a “PGO” fault will occur even though the PG is connected to the Drive.
F2 AI-14 Setup
F2-01 AI-14 Input Selection
This parameter selects the function for channel 1, 2, and 3 when AI-14B analog input reference option board is used.
When the 3-channel individual input is used, parameter b1-01 is automatically set to “l” (frequency reference from control
circuit terminal). The option/inverter reference selection, which is selected by a multi-function contact input (H1-0x = “2”), is
disabled when using the AI-14B option.
F3 DI-08, 16 Setup
F3-01 DI-08 / DI-16H2 Input Selection
This parameter sets the function of the DI-08 or the DI-16H2 digital input option board. When o1-03 is set to 2 or higher, the
input will be BCD, and the units will change to the o1-03 setting.
Setting Description
0 3-Channel Individual (channel 1: terminal A1, channel
2: terminal A2, channel 3: terminal A3) (factory default)
1 3-Channel Addition (Summed values of channels 1, 2,
and 3 is the frequency reference)
Setting Description
0 BCD 1% Unit (factory default)
1 BCD 0.1% Unit
2 BCD 0.01% Unit
3 BCD 1Hz. Unit
4 BCD 0.1Hz. Unit
5 BCD 0.01Hz Unit
6 BCD (5-digit) 0.01 Hz. Unit (for DI-16H2 only)
7 Binary Input
No. of Motor RPM’s =
No. of PG Output Pulses × 60
PG Pulses/Revolution (F1-01) ×
No. of Teeth Gear 2 (F1-13)
No. of Teeth Gear 1 (F1-12)