Magnetek 188-10130, Instruction Manual

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RVS-DX, Digital Soft Starter Instruction Manual—04/01/04
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Built in Bypass After Acceleration
The bypass after acceleration allows the RVS-DX to control the motor during starting and stopping
for smooth, step-less acceleration and deceleration. However, once up to full voltage the RVS-DX is
bypassed to reduce the watt loss.
The RVS-DX incorporates internal bypass relays allowing current flow through the SCR’s only
during the soft start process. At the end of the soft start, the built-in relays bypass the SCR’s and
carry current to the motor. Upon stop signal, or in case of fault, all three bypass relays will open and
stop the motor. When the decel time is set to allow soft stopping, upon stop command, the bypass
relays will open immediately and the current will flow through the SCR’s. The voltage will then be
reduced slowly and smoothly to zero.
RVS-DX units rated 31-310 amps have built-in bypass.
C/T
C/T
M
x 3