Motor Controllers AC Variable Frequency Drives
RVBS
Specifications are subjected to change without notice.10/08/2021
24
Function
Code
Mod.
add.
Description
Def
Min
Max
U.M.
R/W
H04
0x0304
Acceleration/Deceleration Pattern
0
0
2
-
R/W
H08
0x0308
1st S-Curve acceleration range (At starting)
10
0
50
-
R/W
H09
0x0309
2nd S-Curve acceleration range (At arrival)
10
0
50
-
R/W
H10
0x030A
1st S-Curve deceleration range (At starting)
10
0
50
-
R/W
H11
0x030B
2nd S-Curve deceleration range (At arrival)
10
0
50
-
R/W
4.2.8
Motor parameters
Motor parameters are needed to operate RVBS, motor, and load optimally.
-
P01 specifies the rated capacity of the motor. Enter the rated value given on the nameplate of the
motor.
-
P02 specifies the rated current of the motor. Enter the rated value given on the nameplate of the
motor.
-
P03 makes the inverter automatically detect the motor parameters and saves them in its internal
memory. Basically, it is not necessary to perform tuning when using a standard motor with a standard
connection with the inverter.
However, in any of the following cases, perform auto-tuning since the motor parameters are
different from those of standard motors so as not to obtain the best performance under each of these
controls: torque calculation monitoring, auto, slip compensation, and torque vector control.
✓
The motor to be driven is a non-standard motor.
✓
Cabling between the motor and the inverter is long.
✓
A reactor is inserted between the motor and the inverter.
P04 through P06 and P10 specify no-load current, %R1, %X, and rated slip frequency, respectively. Obtain
the appropriate values from the test report of the motor or by calling the manufacturer of the motor. Performing
auto-tuning automatically sets these parameters.
-
No-load current (P04): Enter the value obtained from the motor manufacturer.
-
%R1 (P05): Enter the value calculated by the following expression.
%𝑅1 =
𝑅1 + 𝐶𝑎𝑏𝑙𝑒 𝑅1
𝑉/(√3 ∗ 𝐼)
where,
R1: Primary resistance of the motor (Ohm)
Cable R1: Resistance of the output cable (Ohm)
V: Rated voltage of the motor (V)
