Elin EBG ELVOvert SX, Operating Manual

Page: 34 / 56

SX - Operating- & Service instruction - 8 074 667.02/02 - page 32
Power connections
For connecting power and control terminals the front cover has to be removed. Be sure that no mains potential is connec-
ted to the motor terminals U, V, W, because this may damage the unit.
If it is necessary to connect more than one motor to a single inverter, be sure that each motor is protected.
Terminal Function Description
L1, L2, L3 Mains terminals 3 AC 380-460 V ±10 %, 50/60 Hz ±5 %
U, V, W Motor terminals 3 AC 380-460 V
+, RB Braking resistor Allowed resistor values:
(optional) Minimum 70 Ohm. The RB terminal is only available at
SX 400/5,5C7,5P and SX 400/7,5C11P. The other types
need an external braking unit and resistor
+, - DC voltage connection Connection for external braking unit
+1, + Connection for DC-reactor !! FD: internal linked !! Used for connecting a single-phase
DC-reactor instead of a three-phase
mains reactor
Earth connection Use cable with min. 10mm
2
!!
Remarks for using earth leakage circuit breakers in the mains supply: Remarks for using earth leakage circuit breakers in the mains supply:
Frequency inverters with CE-filters (RFI-filter) and screened motor cables have a higher leakage current
against earth. Especially in the moment of switching on this can cause unintentional triggerings of earth
leakage circuit breakers. Because of the rectifier on the input side of the inverter there is the possibility to stall the switch-off
function through amounts of DC-current. The following should be observed:

Only short time-invariant and puls current-sensitive earth leakage circuit breakers with higher trigger
current should be used.

Other components should be secured with seperate earth leakage circuit breakers.

Earth leakage circuit breakers in front of an inverter are not an absolut protection against direct touching.

The ELVOvert SX units have no current-limiting function (in case of fault currents).
Therefore they don´t violate the earthing.
ELVOvert SX 400/5,5C7,5P to ELVOvert SX 400/15C22P
+ +1
L1 U V W
L2 L3 -
M
3 ~
Netzspannung /
mains voltage
3 x 380 V - 460 V
(Sicherungen lt. Tabelle) /
(see table for fuses)
Externer
Bremswider-
stand
(optional)
Anschluß für
externen
Bremssteller /
Connection for
external braking
unit
RB PE
External
braking
resistor
(optional)
*)
Interne Kurzschlußbrücke /
internal short circuit bar
*) Connection for an external *) Connection for an external
single-phase DC-reactor in- single-phase DC-reactor in-
stead of a three-phase mains stead of a three-phase mains
reactor. reactor.
Attention ! The internal link Attention ! The internal link
must be removed if an exter must be removed if an exter--
nal DC-reactor is used ! nal DC-reactor is used !
The RB terminal is only avai The RB terminal is only avai--
lable at SX 400/5,5C7,5P lable at SX 400/5,5C7,5P
and SX 400/7,5C11P. The and SX 400/7,5C11P. The
other types need an external other types need an external
braking unit and resistor. braking unit and resistor.