Veikong gpd 515/g5 Startup Manual page 171

5 . 3 8 S L I P COMPENSATION
C 3 - 0 1 Slip Compensation is used to increase motor speed to account for slip; this is
accomplished by boosting output frequency, with a corresponding boost in output voltage.
Sets the slip compensation gain, in increments of 0.1%. When the gain is " 1.0 ", the
output frequency is increased by 1% of the E 1 - 0 6 setting at rated current. A setting of
" 0.0 " results in no slip compensation. C 3 - 0 2 & C 3 - 0 3 affect this gain as shown in the
block diagram. C 3 - 0 4 determines whether the slip compensation gain will be enabled or
disabled during regeneration.
d2-01
Fref
d2-02
CURRENT
DETECTOR
NOTE: When Fref is less than E1-09 setting, this function is disabled.
EXAMPLE
Desired frequency is 45 Hz
Motor slip = 2% at full load
C 3 - 0 1 = 2 . 0
Actual output frequency at
full load = 45x1.02 = 45.90 Hz
Continued
+
+
C3-01
+
K
–
20%
Slip Compensation Block Diagram
45.90 Hz actual output
45 Hz command
5-85
SOFT STARTER
SFS
400 Hz
Delay
C3-02
Limit
E1-04 x C3-03
E1-06
C3-03
Output Frequency
V
INTERNAL
FREQUENCY
REFERENCE
E1-06 E1-04
2% frequency
boost
corresponding
voltage boost
f