(G) Control parameters
604
PARAMETERS
Pr.0 Torque boost page 597
Pr.3 Base frequency, Pr.19 Base frequency voltage page 598
Pr.12 DC injection brake operation voltage page 605
Pr.47 Second V/F (base frequency), Pr.113 Third V/F (base frequency) page 603
Pr.60 Energy saving control selection page 602
Pr.71 Applied motor, Pr.450 Second applied motor page 438
5.16.6 SF-PR slip amount adjustment mode
• By setting the number of SF-PR motor poles in Pr.673 SF-PR slip amount adjustment operation selection, the SF-PR
slip amount adjustment mode is activated.
• The SF-PR slip amount adjustment mode is available only under V/F control.
• Use Pr.674 SF-PR slip amount adjustment gain to fine-tune the rotations per minute. To reduce the rotations per minute
(to increase the compensation frequency), set a larger value in Pr.674. To increase the rotations per minute (to reduce the
compensation frequency), set a smaller value in Pr.674. (Lower rotations per minute reduce the power consumption, and
higher rotations per minute increase the power consumption.)
NOTE
• The slip amount adjustment mode is not available in the following cases.
During acceleration/deceleration, during DC injection brake operation, during PID control, during orientation control, during
encoder feedback control, during stall prevention operation, during regeneration avoidance operation, during traverse
operation, and while the slip compensation is valid (Pr.245).
• As compared to our conventional SF-JR motor, the slip amount is small for the high-performance energy-saving SF-
PR motor. When replacing the SF-JR to the SF-PR, the slip amount is reduced and the rotations per minute increases.
Therefore, when the SF-PR is used with the same frequency setting as that of the SF-JR, power consumption may
increase as compared to the SF-JR.
• By setting the slip amount adjustment mode, the frequency command can be adjusted to keep the rotations per minute
of the SF-PR equivalent to those of the SF-JR for power consumption reduction.
Pr. Name
Initial
value
Setting
range
Description
673
G060
SF-PR slip amount
adjustment operation
selection
9999
2, 4, 6 Set the number of SF-PR motor poles.
9999 Slip amount adjustment mode invalid
674
G061
SF-PR slip amount
adjustment gain
100% 0 to 500% Setting is available for fine adjustment of the slip amount.
V/F
V/F
To Next Page
Loading...
