Omega Vehicle Security DRF-RES Series Manuel D’Utilisation

Page de 12
Page 10
User’s Manual DRF Series
INSTALATION
PRECAUTIONS.- 
The installation and the
future use of this unit
must be done by qualified
personnel. The unit has
not AC (mains) switch,
neither internal protection fuse. It will be in
operation as soon as power is connected.
The installation must incorporate an
external mains switch with a protection
fuse and also the necessary devices to
protect the operator and the process when
using the unit to a control machine or
process where injury to personnel or
damage to equipment or process may
occur as a result of failure of the unit.
RECOMMENDED FUSES
24 Vdc
230 Vac
115 Vac
250mA
70 mA 100 mA
All fuses .-Time Lag Fuse
SAFETY PRESCRIPTIONS.- The unit has
been designed and tested
under EN-61010-1 rules and
i s   d e l i v e r e d   i n   g o o d
conditions. This User’s Ma-
nual contains useful information the user
has to respect in order to warrant a proper
function of the unit, and good security
conditions. The unit is designed for
i n t e r n a l   a p p l i c a t i o n s ,   w i t h   g o o d
ventilation to avoid excessive heating. It
c a n   o c c a s i o n a l l y   b e   a p p l i e d   t o
temperatures down to 10ºC or up to 70ºC
without security degradation. Do all
connections before applying power to the
unit. Do not make wiring changes until
power is disconnected from the unit.
I n s t a l l   t h e   u n i t   f a r   f r o m   e l e m e n t s
generating electric noise, or magnetic
CAUTIONS, WARNINGS AND NOTES
fields, such as power relays, electrical
engines, speed regulators, etc. Do not
use until installation is completed.
POWER SUPPLY.-  The power supply must
be connected to the adequate terminals 1,
2 and 3. The characteristics of the power
supply are shown on the side label. Please
make sure that the unit is correctly
connected to a power supply of the correct
voltage and frequency. Do not connect the
unit to lines which are overloaded or which
provide power to systems working on ON-
OFF cycles or inductive loads.
ATTENTION  : If the power supply is DC
voltage, be careful with the polarity
indicated for each terminal.
SIGNAL WIRING .- Certain considerations
must be given when installing the signal
input wires. If the wires are long, they can
act as an antenna introducing electrical
noise into the unit. Therefore :
Do not install the signal input wires in the
same conduit with power lines, heaters,
solenoids, SCR controls, etc ... and always
far from these elements.
When shielded wires are used, leave
unconnected the shield on the transmitter
side and conect the other end of the shield
to the ground terminal of the machine.
EXCITATION VOLTAGE.- Model DRF-PR
incorporates an internal power supply for
transducers. The output of this power
supply is connected to terminals 7 and 9.
Do not connect these terminals to an
external power supply, beacuse both units
will be permantently damaged.