Integral Sensor Connections; Input/Output Connections; Input/Output Connection Socket - ABB AquaMaster4 Operating Instruction

A Q U A M A S T E R 4 | E L E C T R O M A G N E T I C F LO W M E T E R T R A N S M I T T E R | O I/ F E T4 0 0 - E N R E V. D
30
...5 Installation

Integral sensor connections

Pre-wired sensor connections to the connector plug are shown
in Figure 46.
Figure 46 Integral sensor connections (pre-wired)

Input/Output connections

CAUTION – DAMAGE TO EQUIPMENT
• Refer to the Specification, Specification on page
63 for input/output ratings.
• Inductive loads must be suppressed or clamped to
limit voltage swings.
• Operation of outputs is programmable.
• External isolators are not normally required as the
pulse and alarm circuit is electrically-separated
from all other AquaMaster4 connections.
• Capacitive loads must be inrush current limited.
• Fully-floating pulse outputs may be subject to
static damage, for example connecting to a floating
datalogger, unless 'COM' is operated within its
galvanic isolation range (±35 V) from earth.

Input/Output connection socket

I/O
3KXF221400L0XXX /
3KXF208400L0600
Figure 47 Input/Output connection socket (rear view)
Table 2 Connector input/output connections
(Sensus + pulse/pulse*)
Pin Signal
A DATA
B DATA CLOCK
C O/P COM
D O/P2
E O/P3
F O/P1
G 0V
*For pulse only connection, use pins C, D and F.
I/O
3KXF221400L0XXX /
3KXF208400L0600
Pin view – I/O or
Modbus socket only
A
B F
G
C
E
D
Function Color (output cable)
Sensus Encoder
Sensus Encoder
Output common
Reverse pulses
Alarm output
Forward pulses
Sensus Encoder
Violet
Blue
Yellow
Red
Brown
Orange
Screen