5.4 Details of Function Codes
5-179
Details of
Function Codes
F codes
E codes
C codes
P04 to P23
H codes
A codes
b codes
r codes
J codes
d codes
U codes
y codes
Chapter 5 Function Code
P09 to
P11
Motor 1 (Slip Compensation Gain (Drive), Slip Compensation Response Time, and
Slip Compensation Gain (Brake))
P09 and P11 adjust the correction amount and internal calculation slip amount applied in case of the slip
compensation. Settings are necessary both for drive mode and brake mode respectively. Specification of
100% fully compensates for the rated slip of the motor. Excessive compensation (100% or higher) may
cause hunting, so carefully check the operation on the actual machine.
Constants for the Fuji vector control and for exclusive motor, the slip of the drive/brake mode is adjusted by
P09/P11 in order to improve the torque accuracy.
P10 determines the response for slip compensation. Basically, there is no need to modify the default setting.
If you need to modify it, consult your Fuji Electric representatives.
Table 5.4-106
Function Code Operation (Slip Compensation)
P09 Slip compensation gain
(for driving)
Adjust the slip compensation amount for driving.
Slip compensation amount for driving = Rated slip x Slip compensation
gain (driving)
P11 Slip compensation gain
(for braking)
Adjust the slip compensation amount for braking.
Slip compensation amount for braking = Rated slip x Slip compensation
gain (braking)
P10 Slip compensation
response time
Sets the slip compensation response time. Basically, there is no need to
modify the setting.
For details of slip compensation control, see the description of F42.
P12
Motor 1 (Rated slip frequency)
P12 sets rated slip frequency. Obtain the appropriate values from the test report of the motor or by
contacting the manufacturer of the motor. Performing auto-tuning automatically sets these parameters.
- Rated slip frequency: Convert the value obtained from the motor manufacturer to Hz and input.
(Note: The motor rating given on the nameplate sometimes shows a larger value.)
frequency Base
speed sSynchronou
speed Rated - speed sSynchronou
(Hz)frequency slip Rated ×=
For details about slip compensation control, see the description of F42.
P13 to
P15
Motor 1 (Iron loss factors 1 to 3)
P13 to P15 compensates the iron loss occurred inside the motor under vector control with speed sensor, in
order to improve the torque control accuracy.
For iron loss coefficients 1 to 3 (P13 to P15), standard values are set by the motor 1 select (P99) and motor
1 (capacity) (P02).
Basically, there is no need to modify the setting.
P16 to
P20
P21 to
P23
Motor 1 (Magnetic saturation factors 1 to 5)
Motor 1 (Magnetic saturation extension factors a to c)
Characteristics of exciting current to create magnetic flux generated motor inside and characteristics of the
magnetic flux are input.
By the motor 1 selection (P99) and motor 1 (capacity) (P02), the standard value is set.
Performing auto-tuning while the motor is rotating (P04 = 2 or 3) specifies these factors automatically.
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