V/F Control; Automatic Setting Of Working Voltage/Frequency - TDE MACNO MINIOPD EXP User Manual

2.4 V/F CONTROL

Name
EN_VF_CNTL
PRC_VF_SLIP_CMP
VF_TF_SLIP_CMP
PRC_VF_BOOST
VF_EN_DCJ
PRC_VF_DCJ_I_MAX
PRC_VF_DCJ_F_MAX
VF_EN_CHR_AUTOSET
PRC_VF_CHR_V1
PRC_VF_CHR_F1
PRC_VF_CHR_V2
PRC_VF_CHR_F2
PRC_VF_V_REG_D
VF_EN_SEARCH
PRC_VF_FSTART_SEARCH
PRC_VF_FMIN_SEARCH
PRC_VF_T_MAX_SEARCH
VF_EN_STALL_ALL
VF_STALL_TIME
PRC_VF_V_MAX_STATIC
VF_EN_ENGY
VF_TI_ENGY
PRC_VF_FLX_MIN_ENGY
VF_TF_I_MAX_AL
VF_EN_OPEN_LOOP
VF_EN_BYPASS

2.4.1 AUTOMATIC SETTING OF WORKING VOLTAGE/FREQUENCY

"V/f control" manages the an asynchronous motor without feedback.
This type of control has a good dynamic performance also in flux weakening area (4-5 times base
frequency) and it's able to start the motor also with high load (2 times the nominal motor torque), but
44
Description Min
C80 - Enable V/f control
P170 - Slip motor
0.0
compensation
P171 - Slip compensation
0.0
factor filter
P172 - Stator voltage drop
0.0
compensation
C83 - Enable dc brake
P173 - Current limit during
0.0
continuous braking
P174 - Continuous breaking
0.0
maximum frequency limit
C88 - Calculate V/f
characteristic nominal knee
P175 - V/f characteristic
0.0
point 1 voltage
P176 - V/f characteristic
0.0
point 1 frequency
P177 - V/f characteristic
0.0
point 2 voltage
P178 - V/f characteristic
0.0
poitn 2 frequency
P183 - Voltage regulator
derivative coefficient 0.0
multiplying term
C84 - Enable search during
motor rotation
P184 - Initial search
frequency with rotating 0.0
motor
P185 - Minimum search
frequency with rotating 0.0
motor
P191 - Torque limit during
0.0
fly restart
C82 - Enable stall alarm
P186 - Working time during
limit
P187 - Vs amplitude
0.0
maximum static value
C86 - Enable energy saving
P188 - Energy saving
100
regulator filter time constant
P189 - Energy saving
0.0
admissible minimum flux
P190 - Current alarm filter 0.0
C85 - Enable open loop
working state
C87 - Enable flux angle
bypass - frequency input
Max Default
0 1 0
400.0 0.0
PRC_MOT_F_MAX
150.0 35.0
400.0 70.0
PRC_DELTA_VRS
0 1 0
100.0 100.0
100.0 0.0
PRC_MOT_F_MAX
0 1 0
100.0 0.0
PRC_MOT_V_MAX
100.0 0.0
PRC_MOT_F_MAX
100.0 0.0
PRC_MOT_V_MAX
100.0 0.0
PRC_MOT_F_MAX
100.0 100.0
Range
0 No
1 Freq +
0
2 Freq -
3 Rif 0 +
4 Rif 0 -
100.0 100.0
PRC_MOT_F_MAX
100.0 2.9
PRC_MOT_F_MAX
100.0 150.0
0 1 1
1 100 30
100.0 97.5
PRC_MOT_V_MAX
0 1 0
2000 400
100.0 20.0 % MOT_FLX_NOM
150.0 10.0
Range
0 No
Imax
0
1
in V/f
Imax
2
in V
0 1 0
UM Scale
1
%
40.96
ms 10
%
40.96
1
% DRV_I_NOM 40.96
%
40.96
1
%
40.96
%
40.96
%
40.96
%
40.96
% 327.67
1
%
40.96
%
40.96
% DRV_T_NOM 40.96
1
s 40.96
%
327.67
1
ms 1
40.96
ms 10
1
1