User`s guide

96
CHAPTER 6 - DETAILED PARAMETER DESCRIPTION
Range
[Factory Setting]
Parameter
Unit
Description/Notes
P134
P133 to 300.0
Maximum
[
66.00 Hz ]
Frequency
(F
max
)
0.01 Hz
(

99.99 Hz);
0.1 Hz
(

100.0 Hz)
P134 and thegainand offset ofthe analog input(s) (P234,
P236, P238 and P240) defines the scale and the range
of the speed variation via analog input(s). For more
details refer to the parameter P234 to P240.
P136
(2)
0.0 to 30.0
Manual Torque
[
5.0 %
for
Boost
(IxR
1.6-2.6-4.0-7.0A/
Compensation)
200-240 V and
1.0-1.6-2.6-4.0A/
380-480 V;
2.0 %
for
7.3-10-16 A/
200-240 V and
2.7-4.3-6.5-10A/
380-480 V;
1.0 %
for
22-28-33 A/
200-240 V and
13-16-24-30 A/
380-480 V]
0.1 %
Compensates the voltage drop due to the motor stator
resistance. It acts at low speeds by increasing the inver-
ter output voltage, in order to maintain a constant torque
during the V/F operation.
The best setting is to program the lowest value for P136
that still permits the motor start satisfactorily. If the value
is higher than required, an inverter overcurrent (E00 or
E05) mayoccur due to high motorcurrentsatlowspeeds.
Figure 6.6 a) and b)
- V/F curve and details of the manual torque
boost (IxR compensation)
Output Voltage
(% of the line voltage)
P142
P136 x P142
0
P145
Output
Frequency
b) P202 = 1
a) P202 = 0
Output Voltage
(% of the line voltage)
P142
P136
0
P145
Output
Frequency