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installation
(cont.)
an intermediary terminal block (not
supplied) must be installed for the 3
current sensors:
it enables each of the 3 secondaries
to be short-circuited;
one of the control SineWave™
conditioners shall be connected to this
terminal block;
the connection leads supplied with
the conditioners will allow the
SineWave™ conditioners to operate in
parallel via a loop communication;
other leads supplied with the
conditioners will ensure connections
between the two cubicles which make
up each 120 A.
Connecting sensors
Connection operations
The signal cables connecting
the current sensors to the
SineWave™ conditioner must be
moved away from the power cables so
that any disturbance is avoided.
26
For 90 A or 120 A parallel units:
1 terminal block
not supplied
Fig. 1
PARY board
XR1
XR2
S1
S2
S1
phase 1
phase 2
Procedure:
wiring is connected via the bottom, in
front of the conditioner;
the signal cables connections are
made on 3 screw terminals.
installation and operation manual of SineWave™: E-51027008XT/AD
phase 1
to
load
phase 2
Y
D U M
d
b o a r
Y b o
M E R
P A R Y
see fig. 1
XR3
S2
S1
S2
phase 3
terminals so that any mechanical stress
on the conductors is avoided:
put back the protection panels and
close the door;
close the SineWave™ conditioner
protection circuit-breaker.
phase 3
Y
D U M
d
b o a r
a r d
Y b o a
M E R
b o a r d
P A R Y
The signal cables must be
mechanically fixed near the
MGE UPS SYSTEMS
r d
b o a r d
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