WEG MVW3000 A0040 V023, User Manual

Page: 52 / 125

6-12 | MVW3000
6
Installation, Connection and Energization
DANGER!
Il est obligatoire de connecter l’onduleur à un connecteur de mise à la terre (PE). La connexion de
mise à la terre doit suivre les règlementations locales. Utilisez au moins des conducteurs avec le
calibre de fil indiqué dans le
Table 6.4 on page 6-10 . Connectez l’onduleur à une tige de mise à la
terre spécifique ou au système de mise à la terre général (résistance ≤ 10 ohms).
6.2.2 Input Cubicle
The MVW3000 operates the input circuit breaker. The power supply for the circuit breaker circuits comes from
the MVW3000. The following signals, provided by the circuit breaker, are necessary for its operation:
READY (Closed contact = ready): System ready to be operated.
ON (closed contact = ON): Contactor/circuit breaker status ON.
OFF (closed contact = OFF): Contactor/circuit breaker status OFF.
TRIP (open contact = defect): It indicates a defect in the driving system or actuation of the protection circuit.
NOTE!
Those signals must be dry contact (potential free).
Emergency circuits must be associated to the
READY signal and never to the TRIP signal.
Ready
Line
Protection
SO
No fault
OFF
Command
power supply
Minimum
voltage
coil
220 Vac
(2)
ON
OFF
MVW3000
5
6 7
8
3 2
1
x12:
220 Vac
OFF
link > 50 %
ON
220 Vac
DI4
DI3
5
4 3
2
1
x10:
OFF
ON
Fault
Ready
INPUT CIRCUIT BREAKER CUBICLE
(1)
Inverter
ready
Commands
Emergency
Feedback
DI2
DI5
Notes:
(1) 24 Vdc wiring: use shielded cables and keep them distant from power and command wiring.
(2) 220 Vac wiring: keep it distant from the power wiring.
(3) Example in 220 Vac. See the project.
+24 V
PS24
Transformer
+
Inverter
M
3~
Circuit
breaker
ON
(U<)
Figure 6.9: Connections of the inverter input circuit breaker for situations where it is supplied separately
NOTE!
When the switching circuit is supplied by third parties, it is strongly recommended that the MVW3000
door lock key be blocked together with the circuit breaker/contactor when it is in the non-grounded
position.