Motor Controllers AC Variable Frequency Drives
RVBS
Specifications are subjected to change without notice.10/08/2021
25
I: Rated current of the motor (A)
-
%X (P06): Enter the value calculated by the following expression
𝑅% =
𝑋1 + 𝑋2 +
𝑋𝑀
𝑋2 + 𝑋𝑀 + 𝐶𝑎𝑏𝑙𝑒 𝑋
𝑉/(√3 ∗ 𝐼)
100 (%)
Where,
X1: Primary leakage reactance of the motor (Ohm)
X2: Secondary leakage reactance of the motor (converted to primary) (Ohm)
XM: Exciting reactance of the motor (Ohm)
Cable X: Reactance of the output cable (Ohm)
V: Rated voltage of the motor (V)
I: Rated current of the motor (A)
(*) for reactance, choose the value at the base frequency 1 (F04).
-
Rated slip frequency (P10): Convert the value obtained from the motor manufacturer to Hz using the
following expression and enter the converted value (The motor rating given on the nameplate
sometimes may show a larger value).
𝑅𝑎𝑡𝑒𝑑 𝑠𝑙𝑖𝑝 𝑓𝑟𝑒𝑞𝑢𝑒𝑛𝑐𝑦 (𝐻𝑧) =
(𝑆𝑦𝑛𝑐ℎ𝑟𝑜𝑛𝑜𝑢𝑠 𝑠𝑝𝑒𝑒𝑑 − 𝑅𝑎𝑡𝑒𝑑 𝑠𝑝𝑒𝑒𝑑)
𝑆𝑦𝑛𝑐ℎ𝑟𝑜𝑛𝑜𝑢𝑠 𝑠𝑝𝑒𝑒𝑑
∗ 𝐵𝑎𝑠𝑒 𝑓𝑟𝑒𝑞𝑢𝑒𝑛𝑐𝑦
P07 and P09 determine the slip compensation amount in % for driving and braking, individually.
Specification of 100% fully compensates for the rated slip of the motor. Excessive compensation (100%) may
cause a system oscillation, so carefully check the operation on the actual machine.
-
P08 determines the response time for slip compensation. Basically, there is no need to modify the
default setting.
Functio
n code
Mod.
add.
Description
Def
Min
Max
U.M.
R/W
P01
0x0201
Motor (Rated capacity)
40/75
1
3000
0.01kW
R/W
P02
0x0202
Motor (Rated current)
210/329
0
10000
0.01Arm
s
R/W
P03
0x0203
Motor (Auto-tuning)
0
0
1
-
R/W
P04
0x0204
Motor (No-load current)
152/211
0
5000
0.01Arm
s
R/W
P05
0x0205
Motor (%R1)
847/720
0
5000
0.01%
R/W
P06
0x0206
Motor (%X)
1134/89
4
0
5000
0.01%
R/W
