Electrical Connection Diagrams - Re US3 User Manual

Re
S.p.A.

Electrical connection diagrams

Configuration with setpoint potentiometer (see on page 19)
Configuration without setpoint potentiometer :
In this case it's necessary to link up the green cable to the brown one; if you do not link the cables the
regulated analog output (blue wire) is constant and 0Volt (or 4mA).
Wire colour
Red
Black
White
Yellow
Orange
Blue
Green
Brown
Grey
Violet
Rev.12/04/11
+VDC
Vref
PROP. OUT
REG. OUT
SETPOINT IN
RS485 + (A)
RS485 - (B)
ALARM 1 OUT
ALARM 2 OUT
0 V
+VDC
Vref
PROP. OUT
REG. OUT
SETPOINT IN
RS485 + (A)
RS485 - (B)
ALARM 1 OUT
ALARM 2 OUT
0 V
Pin Function
1 Supply 18÷30Vdc
8 0V
9 Alarm output 1
10 Alarm output 2
4 Proportional analog output
3 Regulated analog output
6 Setpoint input 0÷10V
5 Setpoint reference +10Vdc
7 RS485 serial output - (B)
2 RS485 serial output + (A)
RED
BROWN
ORANGE
BLUE
GREEN
VIOLET
GREY
Coil relay
WHITE
Coil relay
YELLOW
BLACK
RED
BROWN
ORANGE
BLUE
GREEN
VIOLET
GREY
Coil relay
WHITE Vrelay
Coil relay
YELLOW
Vrelay
BLACK
Setpoint potentiometer
(≥ 10KΩ)
Vrelay
Vrelay
US3
22/23