ECOCIRC XL
ecocirc XL
ecocirc XLplus
ELECTRONIC DRIVE MANUAL
1 Introduction
1
2
3
The electronic drive described in this manual controls
both ecocirc XL and ecocirc XLplus circulators; the
drive’s main features are:
sensorless motor control
sine wave modulated PWM
2 micro-controllers:
one dedicated to motor control
one implementing the following features:
- several operating and control modes
- night mode operation
- 0-10V analog input signal control
- PWM input signal control1
- 4-20mA pressure sensor control
- external temperature sensor control2
- external start/stop signal control
- fault signal control
- connection to Modbus control
systems2
- connection to Bacnet control systems3
multiple alarms and errors detection and
control
multiple pump status indication
optional Wireless module control2
optional RS485 module control2
In the next chapters, a detailed description of ecocirc
XL family drives’ features will follow.
Only on plug-connected models, see 1.1
Only on ecocirc XLplus
Only on ecocirc XLplus terminal-connected models, see 1.1
Circulator model
Options
Electrical connection
ecocirc XL/XLplus 25-40
(B)
Plug
ecocirc XL/XLplus 25-60
(B)
Plug
ecocirc XL/XLplus 25-80
-
Terminal
ecocirc XL/XLplus 25-100
-
Terminal
ecocirc XL/XLplus 32-40
(B)
Plug
ecocirc XL/XLplus 32-60
(B)
Plug
ecocirc XL/XLplus 32-80
(F) (B)
Terminal
ecocirc XL/XLplus 32-100
(F) (B)
Terminal
ecocirc XL/XLplus 32-120 F
(D) (B)
Terminal
ecocirc XL/XLplus 40-80 F
(D)
Terminal
ecocirc XL/XLplus 40-100 F
(D)
Terminal
ecocirc XL/XLplus 40-120 F
(D) (B)
Terminal
ecocirc XL/XLplus 50-80 F
(D) (B)
Terminal
ecocirc XL/XLplus 50-100 F
-
Terminal
ecocirc XL/XLplus 50-120 F
(D) (B)
Terminal
ecocirc XL/XLplus 65-80 F
(D) (B)
Terminal
ecocirc XL/XLplus 65-120 F
(D) (B)
Terminal
ecocirc XL/XLplus 80-120 F
(D)
Terminal
ecocirc XL/XLplus 100-120 F
-
Terminal
All the subsequent circulators must be considered XLplus models
ecocirc XL 20-35
(B)
Terminal
ecocirc XL 36-45
(B)
Terminal
ecocirc XL 15-75
(B)
Terminal
ecocirc XL 55-45
(B)
Terminal
ecocirc XL 20-140
(B)
Terminal
ecocirc XL 65-130
(B)
Terminal
ecocirc XL 40-200
(B)
Terminal
ecocirc XL 70-145
(B)
Terminal
ecocirc XL 40-275
(B)
Terminal
ecocirc XL 95-125
(B)
Terminal
ecocirc XL 27-375
(B)
Terminal
ecocirc XL 105-155
(B)
Terminal
ecocirc XL 45-340
(B)
Terminal
1.1 Product Range
B = Bronze
F = Flanged
D = Twin
ecocirc XL /
XLplus
Voltage
rating
Nominal
max input
current
Recommen
ded line
protection
[A]
[A]
25-80
25-100
32-80
32-100
40-80
40-100
50-100
36-45
15-75
1 230V
50/60Hz
<2
3
32-120
40-120
50-80
65-80
55-45
1 230V
50/60Hz
<3
4
50-120
65-120
65-130
1 230V
50/60Hz
<5
6
80-120
100-120
70-145
1 230V
50/60Hz
<9
10
Plug
connector
M12 (1)
Cable Ø
2÷5mm
M12 (2)
Cable Ø
2÷5mm
Power supply
3x
0.75÷1.5
mm2
(2P+T)
Fault signal
2x
0.75÷1.5
mm2
- Analog 010V
- External
pressure
sensor
- External
temperature
sensor
- External
start/stop
If NO fault
signal on
this cable
gland.
Multi-wire
control
cable,
number of
wires
according
to number
of control
circuits.
Shielded if
necessary
Multi-wire
control
cable,
number of
wires
according
to number
of control
circuits.
Shielded if
necessary
Communicati
on bus
Bus cable
M20 Cable
Ø 5÷13mm
M16 (1)
M16 (2)
Power supply
3x
0.75÷2.5
mm2
(2P+T)
- Power
supply
- Fault signal
5x
0.75÷1.5
mm2
(4P+T)
Fault signal
2x
0.75÷1.5
mm2
2 Electrical installation
Power Supply: 1 x 230V ±10%, 50/60Hz
Check that the power supply line is provided with:
A mains isolator switch with a contact gap of at
least 3mm
A high-sensitivity (HS) 30mA differential switch
(RCD – Residual Current Device), suitable for
earth fault currents with DC or pulsating DC
content (preferably Type B).
If an automatic circuit breaker (CB) is required,
use an automatic circuit breaker with C-type
characteristic curve.
a. Connect the ground (earth) lead; be sure
that the ground (earth) lead is longer than
the phase leads
b. Connect the phase leads
For cable requirements and organization of wiring
harness inside the cable glands, refer to par. 2.3
Wiring harness.
2.2 I/O connection
1. Open the terminal block removing the screws
2. Connect the appropriate cable according to the
terminal block diagram. See Figure 8, Figure 9 and
the requirements of par. 2.3 and 2.4.
2.3 Wiring harness
For plug-connected models
2.1 Power Supply connection
For plug-connected models, see Figure 6 and follow
the subsequent steps:
1. Open the connector cover and insert the cable
inside the cable gland
2. Pull down the contact retention spring
3. Connect the cable according to the wiring diagram
4. Align the two parts of the connector
5. Push the two parts one inside the other
6. Close the connector and tight carefully the cable
gland
For terminal-connected models, see Figure 5 and
follow the subsequent steps:
1. Open the terminal block cover removing the
screws
2. Insert the cable inside the M20 cable gland
3. Connect the cable according to the wiring diagram
(see Figure 7 and Figure 9)
Table 1
Table 2
For terminal-connected models
- Analog 010V
- External
pressure
sensor
- External
temperature
sensor
- External
start/stop
If NO fault
signal on
this cable
gland.
Multi-wire
control
cable,
number of
wires
according
to number
of control
circuits.
Shielded if
necessary
Multi-wire
control
cable,
number of
wires
according
to number
of control
circuits.
Shielded if
necessary
Communicati
on bus
Bus cable
Function
Terminal
pair
Contact rating
See
par.
External
start/stop
The drive
provides 5VDC
through these
terminals: no
external voltage
must be
provided!
2.5.1
0-10V external
analog input
2.5.2
Fault signal
Max 250V at 2A
(inductive load)
2.5.3
4-20mA
pressure sensor
input
2.5.4
External
temperature
sensor4
The drive works
with a KTY83
temperature
sensor (1KΩ at
25°C)
2.5.5
Communication
bus (standard)4
TIA/EIA RS485
2.5.6
Communication
bus (optional)4
TIA/EIA RS485
2.5.7
Optional
Wireless /
RS485 module
2.5.8
4
Vin
thres
holds
[V]
Speed
setpoint
[rpm]
when
Vin
Pump
status
when Vin
Po
int
Speed
setpoint
[rpm]
when
Vin
Pump
status
when Vin
Po
int
0
-
Input
disabled
-
-
Input
disabled
-
0.8
-
Input
disabled
- 0 OFF
1.19
-
Input
disabled
- 0 OFF
1.20 0 OFF
MIN
RUN
1.49 0 OFF
MIN
RUN
1.50
MIN
RUN
MIN
RUN
10.0
MAX
RUN
MAX
RUN
Table 3
2.4 Connection diagram
With reference to Figure 8 and Figure 9:
and , which is the factory setting, should be
maintained.
NOTICE
The drive provides 5VDC through these terminals: no
external voltage must be provided to these terminals!
2.5.2 External analog input 0-10V []
An external analog signal 0-10V, applied to terminals
and , controls the circulator speed in a range from
0 to 100%, following a linear function as depicted in
Figure 1.
2.5 I/O description
2.5.1 External start/stop []
The circulator can be started or stopped via an
external potential-free contact or a relay connected to
terminals and . If no external start/stop switch is
connected, the connection jumper between terminals
Only on ecocirc XLplus
Table 4
Figure 1
In the below table a description of the milestones
shown in Figure 1.
Table 5
2.5.3 Fault signal []
The drive controls a relay for a potential-free fault
signal: in case of blocking error, the relay is activated
so that the terminals and are short circuited.
RATINGS
V
< 250VAC
max
I
< 5A (if resistive load)
max
I
< 2A (if inductive load)
max
Interface
RS485 (TIA/EIA) optically isolated
Baud rate
4800 / 9600 (factory setting) / 14400 /
19200 / 38400 / 56000 / 57600 baud
Data
format
8 data bits, no parity, 1 stop bit
Protocol
Modbus RTU (factory setting)
Bacnet MSTP5
Address
1247 Modbus RTU
0 127 Bacnet MSTP5
ID #1 factory setting
Interface
RS485 (TIA/EIA) not isolated
Baud rate
4800 / 9600 (factory setting) / 14400 /
19200 / 38400 / 56000 / 57600 baud
Data
format
8 data bits, no parity, 1 stop bit
Protocol
Modbus RTU (factory setting)
Bacnet MSTP
5
Address
1247 Modbus RTU
0 127 Bacnet MSTP5
ID #1 factory setting
Priority
Possible settings
User
Interface
External
Start/Stop
External
0-10V
Bus signal
1 Stop 2
Regulation
3 Stop
4
Regulation
5 Stop
6
Regulation
7 Stop
2.5.4 External analog input 4-20mA []
The circulator can be equipped with a 4-20mA external
differential pressure sensor, connected to terminals
and , with the purpose of increasing the precision in
operating modes involved with pressure regulation.
For setting, in the drive, the correct pressure sensor
model used, see par. 4.3.5.3.
2.5.5 External temperature sensor []
The circulator can be equipped with an external KTY83
temperature probe (1KΩ at 25C), connected to
terminals and , with the purpose of measuring an
absolute or a differential water temperature, in
temperature dependent / influenced operating modes.
For setting, in the drive, the desired temperaturedependent control mode, see par. 6.1.2
2.5.6 Communication bus (standard)
[]
The circulator (model ecocirc XLplus only) can
communicate remotely through a built-in RS485 port,
whose characteristics are:
The aim of this additional communication bus is to
offer a connection to an external BMS, or to a generic
external device, even when the standard
communication bus (described in 2.5.6) is used for
dual pump operations (in case of a twin-head pump or
2x single-head pumps)
NOTICE
Don’t use this communication bus, implemented on
terminals , and , for connecting 2 pumps in dual
pump operations
2.5.8 Optional wireless / RS485 module
[]
The drive can be equipped with
an optional Wireless module;
an optional RS485 module
Both the modules shall be plugged inside the drive
(see Figure 12), fixed by the provided clips and with
the cable connected to the connector (see par. 6.2
and 6.3).
For setting, in the drive, the correct communication
parameters, see par. 4.3.5.2.
NOTICE
This communication bus, implemented on terminals ,
and , is the only one which can be used for
connecting 2 pumps in dual pump operations (see par.
4.3.5.1)
2.5.7 Communication bus (optional)
[]
The circulator (model ecocirc XLplus only) can
communicate remotely through an optional RS485
port, available exclusively in case the optional Wireless
module or the optional RS485 module is installed;
main characteristics of this port are:
2.6 Settings priority
All the I/O signals, described in 2.5, can interact
together changing the behavior of the circulators they
are connected to: in particular, in case two or more
signals are enabled and active at the same time, the
circulator will operate according to the setting with the
highest priority.
Refer to the table below for the settings priority:
EXAMPLE 1
In case the external start/stop switch is open or
unconnected (External Start/Stop = Stop), the drive
shall not accept any regulation.
EXAMPLE 2
The circulator can be driven through the User Interface
only if no external signals are applied (to the provided
terminals) and no communication bus is connected
Only on ecocirc XLplus terminal-connected models
6
7
8
9
3 First Start-up
Before operate the circulator, verify the correct
connection of the wirings.
1. Switch on the power supply to the pump
The drive light all the LEDs of the User Interface,
to allow a quick detection of any display
malfunction
2. (6) After few seconds, the drive will display the
message SIN (7) or SING (8)
While this message (“SIN” or “SING”) is displayed,
the drive gives the possibility to set the dual pump
operations’ parameters: if the user does not
change this setting, the device will default to the
factory setting (single-head pump) and proceed to
the next step.
For setting, in the drive, the correct dual pump
operations’ parameters see par. 4.3.5.1.
3. (6) After few seconds, the drive will display the
message CON (7) or CONN (8)
While this message (“COM” or “COMM”) is
displayed, the drive gives the possibility to set the
communication parameters: if the user does not
change this setting, the device will default to the
factory settings (9600baud, address = 1, no
optional module, Modbus RTU protocol) and
proceed to the next step.
For setting, in the drive, the correct communication
parameters see par. 4.3.5.2.
4. (9) After few seconds, the drive will display the
message PrE (7) or PrES (8)
While this message (“PRE” or “PRES”) is
displayed, the drive gives the possibility to set the
differential pressure sensor’s parameter: if the user
does not change this setting, the device will default
to the factory setting (differential pressure sensor
1.0bar) and proceed to the next step.
For setting, in the drive, the correct differential
pressure sensor’s parameter, see par. 4.3.5.3.
5. After few seconds, the drive will display the
message 4dG (7) or 4DEG (8)
While this message (“4DG” or “4DEG”) is
displayed, the drive is performing the first (out of 4)
cycle of the Air Purge procedure: if the user does
not stop this procedure, the device will finalize the
4 cycles (decrementing in each sub-phase the
countdown “4DG”-“3DG”-“2DG”-“1DG” or “4DEG”“3DEG”-“2DEG”-“1DEG”) and then proceed to the
next step.
To stop or start the Air Purge procedure, see
par.4.3.4.2
6. At the end of the Air Purge procedure, the pump
starts pumping in Constant Head control mode
(factory default)
For more information about Control Modes and
relative default value, see par. 4.3.3
NOTICE
All the steps from 1 to 5 are always the same at every
start-up, regardless it’s the first or not.
In step 6, the starting control mode of a generic (not
the first) start-up procedure is the last used before the
power-off.
Only on ecocirc XLplus
On plug-connected models
On terminal-connected models
Only if an external differential pressure sensor is connected to the
provided terminals (see 2.5.4)
Control Mode button
See par. 4.3.3
Control Mode indicators (LEDs)
See par. 4.3.3
Parameter button
See par. 4.2
Parameter indicators (LEDs)
See par. 4.2
Setting buttons
See par. 4.3.1
Numeric display
Power indicator (LED)
See par. 4.1.1
Status indicator (LED)
See par. 4.1.2
Remote control indicator (LED)
See par. 4.1.3
4 Control Panel
For a description of buttons, indicators and display
present on the user interface, follow the table below
referring to Figure 10 (in case of plug-connected
models) and to Figure 11 (in case of terminalconnected models).
If the Remote (green) LED is permanently lit, then
the drive both
o detected a communication bus on the
provided terminals
o acknowledged the correct addressing
If the Remote (green) LED is blinking with 50%
duty every second, then the drive
o detected a communication bus on the
provided terminals
o has not been correctly addressed
Particular behaviors (in this condition) for this indicator
are the following
If the Remote (green) LED switches from being
permanently lit to being not lit, then the drive
didn’t detect any valid Modbus RTU message (at
least) for the last 5 seconds
If the Remote (green) LED switches from being
permanently lit to blinking with 50% duty every
second, then the drive has not been correctly
addressed (at least) for the last 5 seconds
4.1 LEDs description
4.1.1 Power indicator []
When the Power (green) LED is lit, the circulator is
supplied with power and the electronic devices are
operative
4.1.2 Status indicator []
If the LED is not lit, then the pump is
stopped or disabled and the pump motor is not
running.
If the Status (orange) LED is lit, then the pump is
still enabled and the pump motor is running,
because in presence of a non-blocking alarm
If the Status (red) LED is lit, then the pump is
stopped or disabled and the pump motor is not
running due to a blocking error
If the Status (green) LED is lit, then the pump is
running
4.1.3 Remote control indicator []
This indicator is used only on ecocirc XLplus
circulators, because it is related to the presence of any
kind of communication.
The way the Remote LED is lit (permanently) or blinks,
depends on several settings and conditions as below
4.1.3.1 Condition 1
If no optional wireless / RS485 module is used
(referring to par. 4.3.5.2, parameter “Module” is set to
value “None”) and the protocol for the communication
bus is Modbus RTU (parameter “Protocol” is set to
value “Modbus”)
If the LED is not lit, then the drive cannot
detect any valid Modbus message on the terminals
provided for the communication bus
4.1.3.2 Condition 2
If no optional wireless / RS485 module is used
(referring to par. 4.3.5.2, parameter “Module” is set to
value “None”) and the protocol for the communication
bus is Bacnet MSTP (parameter “Protocol” is set to
value “Bacnet”)
If the LED is not lit, then the drive didn’t
receive any valid request, coming from any other
Bacnet MSTP device, (at least) for the last 5
seconds
If the Remote (green) LED is permanently lit, then
the drive is exchanging information with any other
Bacnet MSTP device
4.1.3.3 Condition 3
If the optional wireless module is used (referring to par.
4.3.5.2, parameter “Module” is set to value “Wireless”)
If the LED is not lit, then the connection
with the wireless module is damaged or absent
If the Remote (green) LED is blinking with 10%
duty every second, then the drive is exchanging
information with the wireless module
4.1.3.4 Condition 4
If the optional RS485 module is used (referring to par.
4.3.5.2, parameter “Module” is set to value “RS485”)
If the LED is not lit, then either
o the connection with the RS485 module is
damaged or absent
o the drive didn’t receive any valid request,
coming from any other external device, (at
least) for the last 5 seconds
If the Remote (green) LED is blinking with 90%
duty every second, then both
o the RS485 module is correctly connected
o the drive is exchanging information with any
other external device
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