Example Of Wiring Diagram - ascon M1 line Manual

2 - Electrical connections

2.3 EXAMPLE OF WIRING DIAGRAM

Supply
Power
[3]
supply
switch
Fuse
~
2A T
2.5 Ω
Fuse
external
[5]
shunt
resistor
[6]
mA
mV Tc
B
2 wire transmitter
PV
10
Supervision
RS485
RX/TX
PTC [4]
1 7
~
V
2 8
3 9
18V
OP1
4 10
OP2
5 11
6 12
B A
Pt100
Retransmission
0P4
4...20mA
15
OP2 [6]
16
Notes:
1] Make sure that the power supply
voltage is the same indicated on
the instrument.
2] Switch on the power supply only
after that all the electrical con-
nections have been completed.
3] In accordance with the safety reg-
ulations, the power supply switch
shall bring the identification of the
relevant instrument. The power
supply switch shall be easily
accessible from the operator.
4] The instrument is is PTC pro-
tected. In case of failure it is sug-
gested to return the instrument to
the manufacturer for repair.
5] To protect the instrument internal
circuits use:
- 2 AT/250Vac (4AT/120Vac)
fuses for Relay outputs
~
- 1 A T fuses for Triac outputs
6] Relay contacts are already pro-
tected with varistors.
Only in case of 24 Vac inductive
loads, use model A51-065-30D7
varistors (on request)
B