PROGRAMMING
INSTRUCTIONS
SINUS PENTA
271/452
C032 (C075, C118) Reduction in Quadratic Torque Curve
C032 (Motor 1)
C075 (Motor 2)
C118 (Motor 3)
Range
0
1000
0
100.0%
Default
300
30.0%
Level
ADVANCED
Address
1032, 1075, 1118
Control
IFD
Function
If the V/f curve pattern
C013 (C056, C099) = Quadratic
, this parameter defines
the maximum voltage reduction in terms of theoretical V/f pattern, which is
implemented at the frequency programmed in
C033 (C076, C119)
.
C033 (C076, C119) Rated Revs Referring to Reduction in Quadratic Torque Curve
C033 (Motor 1)
C076 (Motor 2)
C119 (Motor 3)
Range
1
100
1
100%
Default
20
20%
Level
ADVANCED
Address
1033, 1076, 1119
Control
IFD
Function
If the V/f curve pattern
C013 (C056, C099) = Quadratic
, this parameter defines
the frequency implementing the max. torque reduction in terms of theoretical V/f
pattern set in
C032 (C075, C120)
.
C034 (C077,C120) Voltage Preboost
C034 (Motor 1)
C077 (Motor 2)
C120 (Motor 3)
Range
0
50
0.0
5.0 %
Default
See Table 75 and Table 79
Level
BASIC
Address
1034, 1077, 1120
Control
IFD
Function
Torque compensation at minimum frequency produced by the drive.
IFD control: determines the increase of the output voltage at 0Hz.
C034a (C077a, C120a) VTC Torque Reference for Positive Reference
C034a (mot. n.1)
C077a (mot. n.2)
C120a (mot. n.3)
Range
–500
500
–50.0
50.0 %
Default
0%
Level
ENGINEERING
Address
1204, 1206, 1208
Control
VTC
Function
VTC control: determines the increase of the torque at low rpm with a positive
speed/torque reference.