15
Recommended Wiring Scheme
________________________________________________________________________________________
x
The sinusoidal shape of the current is imperfect (since each phase is separately fired
and not influenced by other phase firing).
As a result, higher harmonic content is incurred (THD), which can be as high as twice
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-
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x
Higher
motor
heating
is
expected for the same motor size (due to the higher THD).
x
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starter immediately (without any damage).
x
Higher torques can not be obtained
x
Factory
preset
-
feat
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o
No Pulse Start.
o
No curve selection (Curve 0 !! only).
o
No Slow Speed
o
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Note :
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nnection.
WARNINGS!
Beware!
Wrong connection of the starter or the Motor, will seriously damage the motor.
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1. It is highly recommended to use a contactor in series to the RVS-DXM
or upstream (after motor protection) in order to avoid a destruction of the
motor in case of a shorted SCR in the RVS-DXM.
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voltage) even when contactor is open.
RVS-DXM connected INSIDE DELTA
Speed reverse with RVS-DXM connected
INSIDE DELTA
(1) C1 is a line contactor.
(2)
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(3) U1-U2, V1-V2, W1-W2
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(4) L1-U, L2-V, L3-W are RVS-DXM controlled phases.
Refer also to section
4.4 page 13.
Note:
Motor terminals are marked as follows:
ASA (USA)
BS
VDE
IEC
T1 - T4
A1-A2
U - X
U1 - U2
T2 - T5
B1-B2
V - Y
V1 - V2
T3 - T6
C1-C2
W - Z
W1 - W2
