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
35
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]
0034ePlus
High-Efficiency Circulator
0-10V DC Performance Curves
100%
75%
50%
25%
0%
0-10V
4V
2V
8V
6V
10V
-11-
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)
E1
Pump locked / Loss of step
Stop
E2
Under Voltage
Stop
E3
Overheating Warning
It operates in limited power
E4
Overheating Alarm
Stop
E5
Communication with inverter
card is interrupted
It works in recover mode
E6
SW cards error. Pumps are
incompatible with each other.
It works in recover mode
Analog Output 0-10V DC
The circulator has an analog output signal
feature to indicate the operating status
Errors List
The presence of errors is indicated by a Red LED and
by the “Error Code” on the display.
0-10V DC Input Mode:
The circulator will vary its speed and
performance based on a 0-10V DC
analog signal external input.
0-10V
Yellow LED
8888
activeADAPT
0-10V
W GPM
RPM
FT
5
Standby
Mode
In the operating mode with external connection
for 0-10V, the
“Standby”
mode is indicated
by the Yellow LED (flashing slowly) and the
word
“Stb”
on the display.
Voltage
Code
Meaning
Circulator Status
State
Summary of Contents for 0034ePlus
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