Analog Input
In the “external input” mode, the circulator accepts either a 0-10VDC voltage signal or a PWM signal. The selection
of the signal type is automatically made by the circulator without operator intervention.
Input 0-10V DC
The circulator operates at variable speed depending on the DC input voltage.
At voltages below 1.5 V, the circulator is in “standby” mode. LED will be flashing yellow in “standby” mode.
At voltages between 2 V and 10 V, the circulator operates at a variable speed depending on the voltage:
- 0% for a voltage not exceeding or equal to 2 V
- 50% at 7 V
- 100% for voltages greater than or equal to 10 V
Between 1.5 V and 2 V the circulator can be in “standby” or at minimum speed depending on the previous state
(hysteresis). See diagram below.
IMPORTANT: If the input remains disconnected, the circulator goes into Standby Mode.
H
ead [f
t.]
PWM (Pulse Width Modulation)
2
4
6
8
0
0
6
8
2
4
10
16
12
14
20
22
18
26
28
30
32
24
34
36
10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50
54
52
Flow Rate Q [GPM]
0034e High-Efficiency Circulator
0-10V DC Performance Curves
100%
75%
50%
25%
0%
0-10V
4V
2V
8V
6V
10V
4
2
0
20
0
40
60
80
100
120
140
160
180
10
6
8
16 18
12 14
20 22 24 26 28 30 32 34 36 38 40
44 46 48
42
50
54
52
Flow Rate Q [GPM]
Power Consumption
0034e High-Efficiency Circulator
0-10V DC Curves
0-10V
Po
w
er
(W
)
2V
4V
6V
8V
10V
-10-
0 V
Circulator off, not powered
2 V
Circulator powered in standby
5 V
Circulator on and running
8 V
Warning presence (overheating, air)
10 V
Alarm presence (Circulator blocked,
under voltage, over temperature)
Analog Output 0-10V DC
The circulator has an analog output signal feature to indicate
the operating status and the presence of any errors.
0-10V DC Input Mode:
The circulator will vary its speed and
performance based on a 0-10V DC
analog signal external input.
