5
Technical Data
________________________________________________________________________________________
3.
TECHNICAL DATA
3.1
Introduction
The RVS-DXM is a third generation, highly sophisticated and reliable starter designed for use with
standard three-phase, three-wire, squirrel cage, induction motors.
It provides the best method of reducing current and torque during motor starting.
The RVS-DXM starts the motor by supplying a slowly increasing voltage, providing soft start and
smooth acceleration, while drawing the minimum current necessary to start the motor.
The RVS-DXM is equipped with internal bypass controlled by its micro-controller. The bypass closes
after the end of the starting process, thus reducing heating and saving power.
3.2
Rating and frames sizes
3.3
Starter Selection
The starter should be selected in accordance with the following criteria:
3.3.1
Motor current & Starting Conditions
Select the starter according to motor's Full Load Ampere (FLA) - as indicated on its nameplate (even
if the motor will not be fully loaded).
The RVS-DXM is designed to operate under the following maximum conditions:
Ambient
Temperature
[
0
C]
Starting Current
[A]
Acceleration Time
[sec]
40
350%xIn
30
400%xIn
5
Max. Starts per Hour: Two (2) starts per hour at maximum ratings and four (4) starts per hour when
fan option is installed. Starts evenly spread on the hour.
Note
:
For very frequent starts (inching applications) the inching current should be considered as the Full
Load Current (FLC) (consult factory).
Weight
[KG]
Dimensions
[MM]
Starter FLC
[A]
Option
66
(1)
Option
36/63
(1)
Option
33
(1)
D
W
H
,240, 310
360,
, 840
960, 1,100
Notes:
Refer to section
5 on page 16 for detailed dimensions.
(1)
Refer to General Options in Ordering Information section
3.3.4 on page 6
for more details.
