Motor Rated Slip; Slip Compensation Limit; Torque And Slip Compensation Time Constant; Accumulative Motor Operation Time (Min., Day) - Delta VFD-B User Manual

07 - 08

Motor Rated Slip

Settings
Refer to the rated rpm and the number of poles on the nameplate of the motor and use the
following equation to calculate the rated slip.
Rated Slip (Hz) = F
This parameter is valid only in vector mode.
07 - 09

Slip Compensation Limit

Settings
This parameter sets the upper limit of the compensation frequency (the percentage of Pr.07-
08).
Example: when Pr.07-08=5Hz and Pr.07-09=150%, the upper limit of the compensation
frequency is 7.5Hz. Therefore, for a 50Hz motor, the max. output is 57.5Hz.
07 - 10 Reserved
07 - 11 Reserved
07 - 12 Torque Compensation Time Constant
Settings
07 - 13 Slip Compensation Time Constant
Settings
Setting Pr.07-12 and Pr.07-13 changes the response time for the compensation.
When Pr.07-12 and Pr.07-13 are set to 10.00 sec, its response time for the compensation will
be the longest. But if the settings are too short, unstable system may occur.
07 - 14 Accumulative Motor Operation Time (Min.)
Settings
07 - 15 Accumulative Motor Operation Time (Day)
Settings
Pr.07-14 and Pr.07-15 are used to record the motor operation time. They can be cleared by
setting to 00 and time is less than 60 seconds is not recorded.
Revision July 2008, BE16, SW V4.08 & V5.00
0.00 to 20.00Hz
(Pr.01-01 base frequency) - (rated rpm x motor pole 120)
base
00 to 250%
0.01 ~10.00 sec
0.05 ~10.00 sec
00 ~1439
00 ~65535
Chapter 5 Parameters|VFD-B Series
Factory Setting: 3.00
Factory Setting: 200
Factory Setting: 0.05
Factory Setting: 0.10
Factory Setting: 00
Factory Setting: 00
Unit: 0.01
Unit: 1
Unit: 0.01
Unit: 0.01
Unit: 1
Unit: 1
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