Taco 0034ePlus User Manual

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 ashing 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.
Head [ft.]
PWM (Pulse Width Modulation)
2 4 6 80
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 5452
Flow Rate Q [GPM]
0034ePlus
High-Eciency Circulator
0-10V DC Performance Curves
100%
75%
50%
25%
0%
0-10V
4V
2V
8V
6V
10V
-11-
0 V Circulator o, 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 RPMFT
5
Standby
Mode
In the operating mode with external connection
for 0-10V, the “Standby” mode is indicated
by the Yellow LED (ashing slowly) and the
word “Stb” on the display.
Voltage Code Meaning Circulator StatusState

Taco 0034ePlus Specifications

General

Brand	Taco
Model	0034ePlus
Category	Controller
Language	English