9 • Recommended Wiring Schemes
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4.
RECOMMENDED WIRING SCHEMES
4.1
Typical wiring diagram
Notes:
(1) - Use fuses for type 2 coordination. Refer to section
(2) – Use a maintained contact to start the motor. Open the contact to soft stop/stop the motor.
Contact must be closed one second after voltage at L1, L2, L3 is stable.
Never apply voltage to terminals 1 & 2.
(3) – Connect terminal 3 to system neutral. If not connected to neutral, phase loss protection
might not function as required. Refer to section
(4) – Leave terminal 4 not connected.
(5) – No internal bypass in RVS-AX8A and RVS-AX17A.
4.2
Wiring Notes
WARNINGS!
When mains voltage is connected to the RVS-AX, full voltage may appear on the starter
load terminals.
Therefore, for isolation purposes, it is necessary to connect an isolating device before
the starter.
Power factor correction capacitors
must not
be installed on starters load side. When
required, install capacitors on starter’s line side.
Never connect the RVS-AX “Inside Delta”! (Consult factory)
When starter is operated by a maintained contact, resetting a fault will start the motor
immediately!
When the line contactor is operated by a maintained contact, in case of Mains failure,
the motor will be automatically restarted upon voltage restoration!
Do not use the Fault contact to trip an upstream contactor!
When the Fault contact trips the upstream contactor, Mains voltage will be
disconnected, thus resetting the starter and the motor will restart instantaneously upon
voltage restoration!