Analog or Digital Input
In “0-10V” mode, the circulator accepts either a 0-10VDC voltage signal or a PWM signal.
The selection of the type of signal is made automatically by the circulator.
0-10VDC Input
The circulator operates at variable speed depending on the DC input voltage.
At voltages between 2 V and 10 V, the circulator operates at a variable speed depending on the voltage:
- Max. Speed voltage not exceeding or equal to 1V
- Max. Speed voltages greater than or equal to 10V
PWM (Pulse Width Modulation)
2V
4V
6V
8V
10V
0
140
100
120
80
40
20
60
2
0
4
6
8
10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50
H
ead [f
t.]
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
0-10V
0-10V
Po
w
er (
W
)
2
4
6
8
10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50
0
Flow Rate Q [GPM]
Flow Rate Q [GPM]
0026e High-Efficiency Circulator
0-10V DC Performance Curves
Power Consumption
0026e High-Efficiency Circulator
0-10V DC Curves
YELLOW LED
YELLOW LED
10V
8V
6V
4V
2V
100%
75%
50%
25%
0%
-10-
10V
2V
1V
0.5V
MIN
MAX
SPEED
Input Voltage
0-10V DC Input Mode:
The circulator will vary its speed and
performance based on a 0-10V DC
analog signal external input.
PWM (Pulse Width Modulation)
2V
4V
6V
8V
10V
0
140
100
120
80
40
20
60
2
0
4
6
8
10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50
H
ead [f
t.]
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
0-10V
0-10V
Po
w
er (
W
)
2
4
6
8
10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50
0
Flow Rate Q [GPM]
Flow Rate Q [GPM]
0026e High-Efficiency Circulator
0-10V DC Performance Curves
Power Consumption
0026e High-Efficiency Circulator
0-10V DC Curves
YELLOW LED
YELLOW LED
10V
8V
6V
4V
2V
100%
75%
50%
25%
0%
IMPORTANT: If the input remains disconnected, the circulator runs at max. speed
PWM Input
Circulator operates at variable speed according to digital
input duty cycle. PWM digital input is shared with 0-10V DC
analog input, the pump will automatically switch between
different input protocols when it detects a constant
frequency input signal. 0% and 100% PWM inputs are
not valid and will be treated as an analog input.
PWM amplitude must be from 5 to 12V, frequency
between 200Hz to 5kHz
Operations based on PWM input:
- Standby for PWM below 5%
- Min speed for PWM between 9-16%
- Half speed for 50% PWM
- Max speed for PWM in over 90%
Between 5% to 9% PWM the circulator remains in standby
or run mode according to minimum threshold
90%
in
valid
in
valid
5% 9% 16%
0%
100%
SPEED
PWM input
Standby
-11-
