Ascon Tecnologic - Y39W Line - Operating Instructions - Pag. 5
4.2.3 Mounting
P
anel max.
12 mm (#1)
max.
29 mm (#2)
“Butterfly” type
brackets (#1)
Screw type
bracket (#2)
34
43
86
4.3
Electrical Connections
Carry out the electrical wiring by connecting only one wire to
each terminal, according to the following diagram, checking
that the power supply is the same as that indicated ON the
instrument and that the load current absorption is no higher
than the maximum electricity current permitted.
As the instrument is built-in equipment with permanent con-
nection inside housing, it is not equipped with either switches
or internal devices to protect against overload of current: the
installation will include an overload protection and a two-
phase circuit-breaker, placed as near as possible to the in-
strument, and located in a position that can easily be reached
by the user and
marked as instrument disconnecting
device
which interrupts the power supply to the equipment.
It is also recommended that the supply of all the electrical
circuits connected to the instrument must be properly pro-
tected, using devices (ex. fuses) proportionate to the circulat-
ing currents.
It is strongly recommended that cables with proper insula-
tion, according to the working voltages and temperatures are
to be used.
Furthermore, the probe input cable must be kept separate
from line voltage wiring.
When a probe shielded cable is used, the protection shield
should be connected to ground at only one side.
Whether the instrument is a 12/24 V version (Power supply
code F/G) it is recommended to use an external TCTR trans-
former, or with equivalent features (class II insulation) and to
use only one transformer for each instrument because there
is no insulation between supply and input.
m
We recommend that a check should be made that the
parameters are those desired and that the application
functions correctly
before connecting the outputs
to the actuators so as to avoid malfunctioning that
may cause irregularities in the plant that could cause
damage to people, things or animals.
4.3.1 Electrical Wiring Diagram
Internal
Buzzer
Pr1
Pr3
Pr2
Digital
12 ÷ 24
VAC/VDC
100 ÷ 240
VAC
1 2 3 4 5 6 7 8 9 101112
Power supply
Outputs
Inputs
NO
NO
NC
NO
C
Out2
Out1 Out3
Out1:
16A-AC1 (6A-AC3)/250V)
Out2:
8A-AC1 (3A-AC3)/250V)
Out3:
5A-AC1 (2A-AC3)/250V)
16A max. for relays common terminal (
C
)
(12A max. for those with removable
terminal block).
