Motor and V/f Pattern Setup
The L7 inverter supports 2 motor settings (main motor and door motor, E2/E4- parameters) for V/f control, Open Loop Vector and Closed Loop Vector for IM. The active motor setup can be selected by a digital input.
Closed Loop Vector Control for PM supports 1 motor setting (main motor, E5- parameters) only.
Setting Motor Parameters for Induction Motors (Motor 1 and 2)
In order to achieve the maximum performance the V/f pattern and the motor data must be set correctly.
The number of motor parameters which can be set, depend on the selected control mode.
In the vector control methods the motor parameters can be set automatically by using the autotuning function
Up/Down command
Base Block Input
(Term BB & BB1)
BB Monitor 1
BB Monitor 2
(refer to
page 4-4, Autotuning
).
However, if autotuning does not complete normally, the parameters must be set manually like described below.
Related Parameters
Parameter
No.
Name d1-19
E1-01
E1-13
E2-01/
E4-01
E2-02
E4-02
E2-03/
E4-03
E1-07/
E3-05
E1-08/
E3-06
E1-09/
E3-07
E1-10/
E3-08
E3-01
E1-04/
E3-02
E1-05/
E3-03
E1-06/
E3-04
Motor 2 speed reference
Input voltage setting
Motor 2 control mode selection
Max. output frequency (FMAX)
Max. voltage (VMAX)
Base frequency (FA)
Mid. output frequency (FB)
Mid. output frequency voltage (VB)
Min. output frequency (FMIN)
Min. output frequency voltage (VMIN)
Base voltage (VBASE)
Motor rated current
Motor rated slip
Motor no-load current
0.00 Hz
400 V
*1
0
50.0 Hz
380.0 V
*1
50.0 Hz
3.0 Hz
*1
37.3 V
*1,*2
0.5 Hz
*2
19.4 V
*1,*2
0.0 V
7.00 A
*3
2.70 Hz
*3
2.30 A
*3
Factory
Setting
Change during
Operation
V/f
No
No
No
No
No
No
No
No
No
No
No
No
No
A
Q/
A
Q/
A
Q/
A
A
Q/
A
A
A
Q/
A
Q/
A
Q/
A
A
Q
A
Q/
A
Q/
A
Q/
A
A
Q/
A
A
A
Q/
A
Q/
A
Q/
A
Control Methods
Open
Loop
Vector
A
Closed
Loop
Vector
A
Closed
Loop
Vector for PM
-
Set by
Autotuning
No
Q Q Q No
A
Q/
A
Q/
A
Q/
A
A
Q/
A
Q/
A
Q/
A
No
Yes
Yes
Yes
Yes
-
A
-
-
Q/
A
A
-
A
-
Q
-
-
Yes
Yes
Yes
Yes
Yes
Yes
No A A A Yes
6
6-
59
6
Parameter
No.
Name
Factory
Setting
Change during
Operation
V/f
E2-08
E2-09
E2-10
E2-11/
E4-07
E2-12
F1-01
E2-04/
E4-04
E2-05/
E2-05
E2-06/
E4-06
E2-07
Number of motor poles (Number of poles)
Motor line-to-line resistance
Motor leak inductance
Motor iron saturation coefficient 1
Motor iron saturation coefficient 2
Motor mechanical losses
Motor iron loss for torque compensation
Motor rated output power
Motor iron saturation coefficient 3
PG constant
4 poles
3.333 Ω
19.3%
0.50
0.75
0.0%
*3
130 W
*3
3.70 kW
1.30
1024
*3
No
No
No
No
No
No
No
No
No
No
-
A
-
-
A
Q/
A
-
-
-
-
A
A
*1. The value is valid for a 400V, 3.7kW inverter
*2. The value depends on the control mode. The given value is valid if V/f control is selected.
*3. All factory-set parameters are for a Yaskawa standard 4-pole motor.
The factory settings depend on Inverter capacity (the values shown are for a 400 V Class Inverter for 3.7 kW).
*4. Rotating tuning only
A
-
Q/
A
A
-
A
-
Control Methods
Open
Loop
Vector
Closed
Loop
Vector
Closed
Loop
Vector for PM
Q/
A
Q/
A
-
Set by
Autotuning
Yes
A
A
A
-
Q/
A
A
A
A
Q
-
-
-
-
-
-
-
-
Q
Yes
Yes
Yes
*4
Yes
*4
No
No
Yes
Yes
*4
Yes
Multi-function Digital Inputs (H1-01 to H1-05)
Set
Value
16
Function
Motor 2 selection (OFF: Motor 1, ON: Motor 2)
V/f
A
Control Methods
Open
Loop
Vector
Closed
Loop ´
Vector
A A
Closed
Loop
Vector
(PM)
-
Multi-function Digital Outputs (H2-01 to H2-03)
Set
Value
Function
V/f
Control Methods
Open
Loop
Vector
Closed
Loop ´
Vector
A A 1C Motor selection (OFF: Motor 1, ON: Motor 2) A
Setting Inverter Input Voltage (E1-01)
Set the Inverter input voltage correctly in E1-01 so that it matches the power supply voltage.
Closed
Loop
Vector
(PM)
-
6-
60
Setting the V/f Pattern
If E1-03 is set to F, the V/f pattern can be set individually
using the parameters E1-04 to E1-10 (see
Fig 6.24).
Output voltage (V)
Frequency (Hz)
Fig 6.24 V/f pattern setting
INFO
To set the V/f characteristics linear, set E1-07 and E1-09 to the same value. In this case, E1-08 will be ignored.
Setting Precautions
When a user-defined V/f pattern is used, consider the following points:
•
•
By changing the control method, the parameters E1-07 to E1-10 are changed to the factory settings for the selected control method.
Be sure to set the four frequencies as follows:
E1-04 (FMAX) ≥ E1-06 (FA) > E1-07 (FB) ≥ E1-09 (FMIN)
Manual Setting of the Motor Parameters
Motor Rated Current Setting (E2-01, E4-01)
Set E2-01 to the rated current value as written on the motor nameplate.
Motor Rated Slip Setting (E2-02, E4-02)
Set E2-02 to the motor rated slip calculated from the number of rated rotations on the motor nameplate.
Motor rated slip = Motor rated frequency (Hz) –
Motor No-Load Current Setting (E2-03, E4-03)
Set E2-03 to the motor no-load current at the rated voltage and rated frequency. Normally, the motor no-load current is not written on the motor nameplate. The following formula can be taken as an indication:
I
0
= sin
( acos cos ϕ )
Number of Motor Poles Setting (E2-04, E4-04)
E2-04 is displayed only when Closed Loop Vector control method is selected. Set the number of motor poles as written on the motor nameplate.
6
6-
61
Motor Line-to-Line Resistance Setting (E2-05, E4-05)
E2-05 is set automatically during motor line-to-line resistance autotuning. When it can not be performed for any reason, consult the motor manufacturer for the line-to-line resistance value. The set value should be calculate the motor test report line-to-line resistance value and the following formula:
•
•
•
E-type insulation: [Line-to line resistance (
Ω) at 75°C of test report] × 0.92 (Ω)
B-type insulation: [Line-to line resistance (
Ω) at 75°C of test report] × 0.92 (Ω)
F-type insulation: [Line-to line resistance (
Ω) at 115°C of test report] × 0.87 (Ω)
Motor Leak Inductance Setting (E2-06, E4-06)
Set the amount of voltage drop due to motor leakage inductance in E2-06 as a percentage of the motor rated voltage. If the inductance is not written on the motor nameplate, consult the motor manufacturer.
Motor Iron Saturation Coefficients 1 and 2 Settings (E2-07/08)
E2-07 and E2-08 are set automatically during rotating autotuning.
Motor Iron Loss for Torque Compensation Setting (E2-10)
E2-10 is displayed only in V/f control method and can be set to increase the torque compensation accuracy.
Motor Setting 1/2 Switch Over
Refer to
page 6-55, Motor 2 Selection
.
6
Setting Motor Parameters for PM Motors
The autotuning with rotating motor can be used to let the inverter measure the voltage constant, the line-to-line resistance and the q- and d-axis inductances and the encoder offset (refer to
page 4-7, Autotuning Procedure with PM Motors
. It can be performed only if the motor can rotate freely (removed ropes and open brake). If the autotuning can not be performed for any reason, the following motor parameters must be set manually.
Related Parameters
Parameter
No.
Name
Factory
Setting
Change during
Operation
V/f
E5-03
E5-04
E5-05
E5-06
E2-07
E5-09
E1-01
E1-04
E1-06
E1-09
E1-13
E5-02
Input voltage setting
Max. output frequency (FMAX)
Base frequency (FA)
Min. output frequency (FMIN)
Base voltage (VBASE)
Motor rated power
Motor rated current
Number of motor poles
Motor line-to-line resistance
Motor d-axis inductance
Motor q-axis inductance
Motor voltage constant
400 V
*1
150 rpm
150 rpm
0 rpm
400 V
*1
3.7kW
*2
7.31 A
*2
4 poles
1.326 Ω
*2
19.11 mH
*2
26.08 mH
*2
478.6 mV
*2
No
No
No
No
No
No
No
No
No
No
No
No
Q
Q
Q
Q
A
-
-
-
-
-
-
-
*1. The given value is valid for 400V inverters.
*2. The factory settings depend on Inverter capacity (the values shown are for a 400 V Class Inverter for 3.7 kW).
-
-
-
-
-
-
Control Methods
Open
Loop
Vector
Closed
Loop
Vector
Q Q
Closed
Loop
Vector
(PM)
Q
Q
Q
Q
A
Q
Q
A
-
Q
Q
A
Q
A
Set by
Autotuning
No
Yes
Yes
Yes
Yes
Yes
-
-
-
-
-
-
A
A
A
A
A
A
Yes
Yes
Yes
Yes
Yes
Yes
6-
62
Motor Rated Power (E5-02)
Set E5-02 to the rated power value as written on the motor nameplate or in the motor data sheet.
Motor Rated Current (E5-03)
Set E5-03 to the motor rated current as written on the motor nameplate or in the motor data sheet.
Number of Motor Poles Setting (E5-04)
Set the number of motor poles as written on the motor nameplate or in the motor data sheet.
Motor Line-to-Line Resistance Setting (E5-05)
Set the motor line-to-line resistance as written in the motor data sheet. Alternatively a measured value can be entered.
Motor d- and q-Axis Inductance (E5-06, E5-07)
Set the q-axis and d-axis inductance value in mH as written on the nameplate or the motor data sheet.
Motor Voltage Constant (E5-09)
Set the motor voltage constant k e
is set in mV as written on the nameplate or the motor data sheet.
Motor Rotation Direction Change
If the motor operates in the wrong direction with an Up or Down command, the direction can be changed by parameter S3-08.
Related Parameters
Parameter
No.
F1-05
S3-08
Name
Encoder direction change
Output phase order
Factory
Setting
Change during
Operation
0
No
No
V/f
No
A
Control Methods
Open
Loop
Vector
Closed
Loop
Vector
No
A
Q
A
Closed
Loop
Vector
(PM)
Q
A
Change Motor Direction in V/f or Open Loop Vector Control
To change the motor rotation direction without changing the wiring, parameter S3-08 can be changed.
•
If S3-08 = 0 the output phase order will be U-V-W
•
If S3-08 = 1 the output phase order will be U-W-V
Change Motor Direction in Closed Loop Vector Control
If Closed Loop Vector Control for IM or PM is used, besides changing parameter S3-08 the encoder direction has to be changed by setting F1-05.
6
IMPORTANT
If Closed Loop Vector Control for PM motors is used, always perform an encoder offset tuning after parameter S3-08 of F1-05 has been changed.
6-
63
