Siel Safepower-Evo-HF 30, Installation And User Manual

Page: 76 / 258

IV331 Rev.000 SIEL S.p.A.
Data di emissione: 2011-08-22 Pag. 76 di 258 + FR
N.B.
- Tighten the clamps only after tightening the cables in their power terminals.
-
Perform the cables so that when the clamp is tightened, they do not strain the power terminals.
R.E.P.O.
This isolated input is used to turn off the UPS remotely in case of emergency.
This UPS is provided from the factory with “Remote Emergency Power Off” (R.E.P.O.) terminals short-circuited (
see "Views of
the UPS connections" ). If it is to be installed, remove the short-circuit and connect to the normally closed contact of the
stopping device by using a cable that ensures a double isolation connection.
In case of emergency, the R.E.P.O.control is opened by activating the stopping device; the UPS enters stand-by mode (see
"USE" section) and powers off the load completely.
The R.E.P.O circuit is self-powered with SELV type circuits. Therefore, no external power supply voltage is required. When
closed (normal condition) a maximum current is present.
E
XTERNAL
S
YNC
This non-isolated input can be used to synchronise the inverter output with an opportune signal coming from an external source.
If it is to be installed it is necessary to:
¾
Use an isolation transformer with an isolated single-phase output (SELV) within the range 12÷24Vac with a power
t
0.5VA
¾
Connect the transformer secondary to the "EXTERNAL SYNC" terminal (see "Views of the UPS connections”) using a
double isolation cable with a 1mm2 cross section. Warning: always respect the polarisation as in the figure below:
After installation, enable the control using the configuration software.