INSTALLATION
143
NA30 - Manual - 04 - 2022
circuit pertaining to the monitoring unit.
It is recommended to terminate the line at the extremities of the same; this must be performed on the
RS485 line control unit and on the NA30 device placed at the furthest point connecting the specially
provided resistor; termination can be made by means a jumper between the F2-F3 terminals.
Termination resistors allow adjusting the impedance of the line, reducing the influence of the induc-
tive components of the same, which might compromise good communication.
Thybus port
In order to extend I/O capability, the Pro_N relays can be customized through external auxiliary mod-
RS485
120
Ω
SUPERVISION UNIT
OUTPUT RELA
YS
U
AUX
A1
≅
A2
A9
A10
A11
A12
A13
A14
E1
THYBUS
D1
ETHERNET
A3
A4
A5
A6
A7
A8
K2
K3
K4
K5
K6
K1
RS485
F1
F2
F3
F4
F5
A+
A+
B-
B-
BLOCK OUT
BLOCK IN
A15
BLOUT-
BLOUT+
A16
BINARY INPUTS
A19
A18
A17
IN1
IN2
A20
A21
A22
C1
I
L1
I
L2
I
L3
I
E
CURRENT INPUTS
C2
C3
C4
C5
C6
C7
C8
RS485
F1
F2
F3
F4
F5
A+
B-
Pro-N
Pro-N
USB
FRONT PANEL
RS485-wiring.ai