nxt BIA-nXt-SPC 3-40 User manual

BIA-nXt-SPC3 Instruction Manual V1.0 1
Auto Restart Pump Controller
Single Pump Protection and Control Module
BIA-nXt-SPC 3-40 PN 811196
BIA-nXt SPC 3-11 PN 811197
BIA-nXt SPC 3-15 PN 811198
Installation and Operation Manual

2BIA-nXt-SPC3 Instruction Manual V1.0
A. Shortcuts
Switching to
Manual if the
controller is in
LOCK MODE:
PRESS and HOLD the MODE
button for 5 seconds
Lock parameter # 011 in the
Expert Menu Pg 13
Alarm Test:
Inside the controller
on the rear of the
display PCB is an
ALARM TEST button
Error log:
•Switch to MANUAL mode
•Ensure no pumps are
running.
•PRESS and HOLD the
STOP button, then SHORT
PRESS the MODE button
•Press MODE to scroll
•Press STOP to exit
Accumulated
Run time:
Controller in manual
state. Press and hold
STORE then press
START
Switching
between AUTO
and MANUAL:
PRESS and release the MODE
button
Alarm Mute:
At any time press the
STOP button to mute
the alarm. It will now
beep every 5 minutes.
Resets after 24Hrs

BIA-nXt-SPC3 Instruction Manual V1.0 3
B. Shortcuts cont
Programming:
STORE advances to the next
parameter
START increases a value
STOP decreases a value
Short press MODE to store a value
and return to the main menu
Press STORE for 5 sec to save
changes and exit the parameter
menu
To clear the
calibration
With the pump stopped and
the controller in manual mode,
PRESS and HOLD the STOP
button for 30 seconds
Calibrating the
controller to the pump
In manual mode, short press START
. Allow
the pump to run and the current draw to
stabilise.
Once you are satisfied the pump is in its
‘normal’ operating range short press
STORE The controller should chirp.
The controller calibration value can be
checked and adjusted from the User Menu
Parameter #015 in the User Menu Pg 14
EXPERT
programming
menu
In manual mode, press
STORE + MODE buttons
for 3 seconds
Page 13
USER
programming
menu
In manual mode, press
and hold the STORE
button for 5 sec.
Page 14

4BIA-nXt-SPC3 Instruction Manual V1.0
1. Introduction
Thank you for choosing a Bianco nXt-SPC (Single Pump Control and protection module.
The Bia nXt-SPC is a module intended to control and protect an individual three phase
pump. The user can select a control logic sequence to match their application and enjoy the
benefits of superior control and protection for the pumps.
There are 3 primary control logic modes:
•‘Drainage’ where control is concentrated at the source
•‘Boosting’ which references pressure switching on the delivery side for control
•‘Transfer’ which is a mix of source and destination control
nXt-SPC has 2 x passive dry contacts and is equipped with a RS485 modbus interface to
connect to a BMS
The LCD screen displays the pump running state and provides the user a wealth of useful
information.
The controller is easy to set up with an initial push button calibration and individual
parameters can be fine-tuned.
A nXt-SPC controller is particularly useful where there is the need to control and protect
pump installations managing the automatic operation through a variety of switching
methods without the need to create a bespoke control solution.
2. Warnings and Cautions
Read the manual carefully before starting
Prior to starting installation or maintenance the controller must be
disconnected from the power supply.
Any changes or modification to the wiring must be carried out by
competent, skilled and suitably qualified personnel only.
A qualified electrician should correctly size and install circuit breakers
to protect the power supply. The fitment of additional surge protection
is recommended as good practice.
Never open the cover while controller is connected to electrical supply.
Disconnect and allow the internal electronics to discharge before
opening the cover
This appliance is not intended for use by persons (including children)
with reduced physical, sensory or mental capabilities, or lack of
experience and knowledge, unless they have been given supervision or
instruction concerning use of the appliance by a person responsible for
their safety. Children should be supervised to ensure that they do not
play with the appliance.
Ensure the controller is a suitable size for the pump motor (see
Section 6, Page 7: Technical Data). Size according to full load
current amperage.

BIA-nXt-SPC3 Instruction Manual V1.0 5
3. Contents
A. Shortcuts .................................................................................................. 2
1. Introduction............................................................................................... 4
2. Warnings and Cautions ............................................................................. 4
3. Contents ................................................................................................... 5
4. ISO 7010 Symbols used in this manual ..................................................... 5
5. Modes of Operation................................................................................... 6
6. Technical Specifications ........................................................................... 7
7. Display ...................................................................................................... 8
8. Electrical Connections............................................................................ 10
9. Modbus ................................................................................................... 12
9. Parameter Calibration............................................................................. 12
10. Program Parameters ............................................................................... 13
11. Quick guide: Drainage Mode, float connected to pump .......................... 16
12. Quick guide: Drainage Mode, floats connected to control ...................... 17
13. Quick guide: Transfer – source/destination control................................ 18
14. Quick guide: Pressure Boosting – switched input................................... 19
15. Quick guide: Drainage Mode, 4–20mA level transmitter ......................... 20
16. Quick guide: Transfer – source/destination control 4-20mA .................. 21
17. Quick guide: Pressure Boosting 4-20mA ................................................ 22
18. Fault Messages ....................................................................................... 24
19. Warranties – Terms and Conditions ........................................................ 25
4. ISO 7010 Symbols used in this manual
Warning - Electrical safety
Warning – Potential consequences of use outside of intended
application(s). Includes environmental condition warnings.
Mandatory warning
Warning to disconnect power
Read carefully

6BIA-nXt-SPC3 Instruction Manual V1.0
5. Modes of Operation
On the main PCB there is a 4 position ‘Dip Switch’
To alter the control logic to suit an application, the
installer must select the appropriate switch position.
After selecting the desired switch position, cycle the
controller power to apply the setting.
Binary
Switch position
Control logic - Applications
000
‘Drainage’ Mode where the control inputs (generally level
floats or probes) are located at the source. (default)
010
‘Drainage’ Mode where the level control input is managed by
a flexible float on the pump. No bridge – terminals #5 and #7
111
‘Pressure Boosting’ Mode. Main control via (N/C) pressure
switch. Supports run / no run level protection at the source
via floats or probes.
101
‘Transfer’ Mode. Main control via control inputs (floats or
probes) at destination or by a pressure switch on the delivery
line. Supports run / no run level protection at the source.
0*
OTA/OTB terminal enabled (default)
1*
Enables the connection of a PT00 temperature sensor (i.e.
pump over-temp sensor) A separate PT100 temperature
sensor expansion module is required
011*
‘Drainage’ Mode with overflow alarm through a 4-20mA level
transmitter.
001*
‘Pressure Boosting’ Mode controlled via a 4-20mA pressure
transmitter. Supports run / no run level protection at the
source via floats or probes.
100*
‘Transfer Mode’ with 4-20mA level transmitter at the
destination. Supports run / no run level protection at the
sources via floats or probes.
When first powered on the nXt-SPC will display the
current dipswitch operating mode (binary code), the
hardware and the software version.

BIA-nXt-SPC3 Instruction Manual V1.0 7
6. Technical Specifications
Controller Modes
Automatic or Manual pump operation.
Liquid level control via float switch, electrode probes OR 4-
20mA level transducer.
Pressure control via pressure switch or 4-20mA transducer
Protection functions: Dry run (Underload), Overload, Pump Stalled,
Transient surge, Under voltage, Over voltage,
Phase reversal, Open phase protection
Repeated start, Short circuit, Over temperature
Over temperature requires an optional relay
Input Voltage 415V +10% -6%
Rated output power
SPC 3-40 nominal 0.37 to 4 kW P2 power (max 12A input)
SPC 3-11 nominal 2.2 to 11 kW P2 power (max 25A input)
SPC 3-15 nominal 7.5 to 15 kW P2 power (max 32A input)
Minimum working current SPC 3-40 = 1 amp SPC 3-11 = 5 amp SPC 3-15 = 10 amp
Working temp -25 to +55 deg C
20% to 90% relative humidity, non-condensing
Controller size 342mm wide, 253mm tall, 130 deep. IP54
Trip response times (set) Open phase – Less than 2 sec
Short circuit – less than 0.1 sec
Trip Voltage
(User adjustable)
Over voltage – Default = 437V
Under voltage – Default = 304V
Trip response times
(User adjustable)
Dry run (Under-load) 5 sec
Under Voltage Less than 5 sec
Over voltage Less than 5 sec
Recovery times
(User adjustable)
Dry run (Under-load) 45 min default
Overload 4 min default
Under Voltage 4 min default
Over voltage 4 min default
RS485 Technical interface
RS485 Bus Interface: asynchronous semi duplex
1200,2400,4800,9600 bps (default 9600bps)
MODBUS protocol (RTU)
Alarms Visual and audible alarm. Supports external alarm connection
To avoid ‘nuisance’ alarming, many of the default protection parameters
have values with a wide tolerance. The installer is encouraged to optimise
the settings to achieve optimum results

8BIA-nXt-SPC3 Instruction Manual V1.0
7. Display
The SPC display provides a real time indication of the operational mode and the current
state of the controller, including real-time voltage/current and any error messages.
Only the icons relevant to the selected operational mode will display.
Image representative only (3 phase, dual pump model). Specific models will vary
Operational
state
Error
messages
Controller
status
Amperage,
Voltage and
other values.
Current monitoring
Operating logic
selection
Low voltage
input/output
connections
Contactors
Master Circuit Breaker
Power output connections
High decibel
audible alarm
Audible alarm
Visual alarm
Critical fault
messages

BIA-nXt-SPC3 Instruction Manual V1.0 9
7. Display con’t
The nXt-SPC controller operates according to the pre-programmed logic for each ‘mode’.
Changing the Dip Switches inside the controller then cycling the power will activate the
selected logic mode.
Examples of common applications are detailed later in this manual but with an
understanding of how the controller responds to various inputs in each of the modes the
controller can be used for application other than what is suggested.
The appearance of the front display changes according to each mode and provides a visual
indication to the state of the input signals.
Lack of source
water
High pressure
Low pressure
Source water
full
Destination low
Overflow Destination full
Avoid installing the SPC where it could experience the following conditions:
i. Where there is significant vibration and/or mechanical shock.
ii. Where it could be exposed to corrosive liquids or gasses, or to flammable
materials, solvents etc.
iii. Extreme heat and cold. Operating range -25oC - 55oC.
iv. Protect the controller from rain, moisture, humidity or dust

10 BIA-nXt-SPC3 Instruction Manual V1.0
8. Electrical Connections
Always use an electrical outlet that is protected by Residual Current Device (RCD)
Safety Switch with a trip current of 30mA or less. A Safety switch is required by
Australian/New Zealand Standard AU/NZS 60335.1-2011.
All high voltage wiring must be connected by a suitably qualified technician.
Output Terminals
The nXt SPC has two ‘Dry Contact’ terminals.
D1, D2 activate in the event of a critical fault
D3, D4 activate briefly whenever the controller is changed between its
Automatic and Manual state (which requires physical intervention)
It is the responsibility of the installing electrical technician to ensure that the
cable cross section (mm2) meets the requirements of AS/NZS 3008; taking
into consideration the cable type, the cable length, the current draw and
other relevant factors.
If in doubt online resources exist i.e. Cable Size Calculator AS/NZS 3008 or seek advice
from an electrical engineer or other suitably qualified person(s)

BIA-nXt-SPC3 Instruction Manual V1.0 11
8. Electrical Connections cont
Pump over temperature protection sensor wiring terminal
Terminal Definition
9(OT) + 10(OTA)
See Pg 6 . Dip switch to 0*
Pump over-temp protection sensor. Set to 0* is a N/O circuit, bridged unless
connected. Standard thermals will open to peak signal and stop pump on overheat
9(OT) + 10(OTA)
See Pg 6 . Dip switch to 1*
PT100 connection. Set to 1* the circuit looks for the variable signal from a
PT100 sub-board
Pump moisture protection sensor wiring terminal
Terminal Definition
13(COM) + 16(LKA) Pump leakage protection sensor
Dry contact (passive contact) point wiring terminal
Terminal Definition
D1 + D2 Dry contact point for pump failure indication
N/O circuit. Activates when there is a critical fault
D3 + D4 Dry contact for auto/manual status indication
N/C circuit
4-20mA transmitter wiring – Modes 011 Drainage, 001 Boosting and 100 Transfer
Terminal Definition
3(P+) + 4(P-) 4-20mA level/pressure transmitter
RS485 communication terminal
Terminal Definition
11(A+) + 12(B-) RS 485
Full factory reset_
•Turn off power to the control panel,
•Press and hold the STOP button and reapply power
•When the display shows 099, release the STOP button.

12 BIA-nXt-SPC3 Instruction Manual V1.0
9. Modbus
Main technical data
Physical interface RS485 Bus Interface: asynchronous semi duplex
Data format 1 start bit, 8 data bit, 1 stop bit, no verify
1 start bit, 8 data bit, 2 stop bit, no verify
Default: 1 start bit, 8 data bit, 1 stop bit, no verify
Baud rate 1200,2400,4800,9600 bps (default 9600bps)
Communication address Setting range of controller address: 1-126.
127: broadcast address, host computer broadcasting, slave
machine response forbidden
Protocol type MODBUS protocol (RTU)
Rated input voltage for SC AC 240V/50Hz, single phase
Main installation data
Wire communication distance 1200 m max by shield twisted pair cable (STP)for RS485 & CAN
5000 m max by STP and RS485 extender
STP STP-120U one pair 20AWG for RS485 & CAN
10. Parameter Calibration
The pump must be able to pump water to enable correct calibration. Calibrated
without water, overload and pump stalled errors may occur later.
Calibration can be performed automatically as explained on Page 3 OR by
accessing the User parameter menu #015 and manually inputting the desired
value
When a new pump is installed, or an existing pump reinstalled after
maintenance, erase the former calibration and a perform a fresh calibration.
To access parameter settings the controller
should be in Manual Mode and the pump
should NOT be running.
User Menu – Press the STORE button
Expert Menu – Press the STORE and MODE buttons
for 5 seconds
To enter a parameter, press the STORE button to advance to the next parameter and
display the current value.
To change the value, press the START or STOP buttons respectively to increase or
decrease the value.
To store the value and return to the main menu press MODE button.
To store all changes and exit the parameter menu hold the MODE button for 5 sec

BIA-nXt-SPC3 Instruction Manual V1.0 13
11. Program Parameters
Controller unlocked
Press to switch between AUTO and MANUAL mode
Controller locked (Parameter 011 active)
Press and hold to switch to MANUAL mode
The controller operating mode will be displayed in the top left corner of the display
EXPERT MENU – Parameters 001 - 012
ITEM DEFAULT OPERATION
001 3 sec Pump stall delay time before applying protection
To make provision for inrush current on pump start. Range 0 - 60
002 OFF Repeated start protection. Options ON/OFF
003 ON Over-temp protection.
Related to terminal connection 9 and 10. Dip switch #4 in the up position
004 ON Phase Reversal Protection
When using the nXt SPC in conjunction with a VFD set to OFF
005 ON Open Phase Protection
When using the nXt SPC in conjunction with a VFD set to OFF
006 96 hour Anti Seize Protection: Cycle time. Range Off, 1 – 254 hr
007 OFF Boosting mode only - Start delay time Range Off, 1 – 254 sec
008 OFF Boosting mode only – Stop delay time Range Off,1 – 254 sec
009 OFF Boosting mode only – Maximum run time Off – 254min
010 OFF Fault alarm recovery Off / 1 – 254hrs
011 OFF Button lock function: Off / On
012 00
Parity check 00 = None
01 = Odd parity
02 = Even parity
MODE
MODE

14 BIA-nXt-SPC3 Instruction Manual V1.0
11a.Program Parameters cont
USER MENU – Parameters 015 - 029
ITEM DEFAULT OPERATION
013 01 Controller ID (RS485 Comms) Range 00 – 254 sec
014 04
RS485 Speed
01 = 1200
02 = 2400
03 = 4800
04 = 9600
015 Controller
Dependant Rated output i.e., maximum pump calibration value
016 75% Trip response ratio – Dry run (underload) protection
Range: Off – 95%
017 130% Trip response ratio – Over-load protection
Range: Off – 170%
018 180% Trip response ratio – Pump stalled / locked rotor protection
Range: Off – 195%
019 20% Trip response ratio – Phase imbalance
020 332V Trip voltage – Under Voltage Protection
021 477V Trip voltage – Over Voltage Protection
022 5 sec Trip response time – Dry run Protection Range 1 – 553 sec
023 45 min Recovery time – Dry run Protection Range 1 – 60 min
024 4 min Recovery time – Overload protection Range 1 – 254 min
025 4 min Recovery time – Under/Over Voltage, Phase Imbalance
Range 00 – 60 min
4-20mA Input Mode 011 / 001 / 100 See Section 5 – Modes of Operation
026 Mode
Dependant Sensor range Drainage/Transfer 0-200cm, Boosting 0 – 25 bar
027 Mode
Dependant Pump stop setting
028 Mode
Dependant Start pump setting
029 Mode
Dependant Overflow/Over pressure setting
If a replacement pump is installed, the previous calibration
should be removed and a new calibration performed.

BIA-nXt-SPC3 Instruction Manual V1.0 15
nXt-SPC controllers are a cost
effective, reliable means to provide
better control and protection without
the need for costly bespoke
switchboards
The following quick guides provide
information regarding common
applications.
The pumps illustrated in the following
quick guides are all of a submersible
type but the nXt-SPC controller not
limited to this type of pump.
With an understanding of how the
controller responds to various inputs in each of the modes the controller can be used for
applications beyond what is suggested.
For example, the controller can be connected in series with a VFD controlled pump to
provide additional control inputs or to utilise the nXt-SPC controller delay times.
For even greatly flexibility in your installation the nXt-SPC controller can be used as a
‘module’ in a more complex control environment.
Floats
3 wire’ floats allow for NO or NC wiring.
Connecting to the
controller using the
black and brown wires
the circuit is closed
when the float is up,
open circuit when the
float is down.
For greater differential,
dual floats can be
attached on the source
inputs 5, 6 and 7.
When using a single
float on the source
input terminals #6 and
#7 need to be bridged

16 BIA-nXt-SPC3 Instruction Manual V1.0
12. Quick guide: Drainage Mode, float connected to pump
Set to this operational mode, effectively there is power supplied to the pump continuously.
The stop/start function is controlled by the float connected to the pump. In this mode, no
underload (dry run) protection possible.
The pump On/Off operation is controlled by the float fitted to the pump.
The Controller provides additional protections excluding dry run and start/stop delay
times.
A float connected to the controller can provide high level alarm function
Parameter 016 must remain set to 0.0A to prevent underload alarming when the
pump float interrupts pumping operation
Set the dip switches on the
main PCB and cycle the
master circuit breaker

BIA-nXt-SPC3 Instruction Manual V1.0 17
13. Quick guide: Drainage Mode, floats connected to control
A pump with its own float can be used in this
configuration so long as the operational level
of Pump Stop Switch #1is HIGHER than
the float attached the pump.
Switched input - bridge terminals 6 and 7.
Pump switches on when the Pump Stop/Start float switch is in its On (Up) position
Pump runs until the Pump Stop/Start float switch is in the Off (Down) position
High-Level alarm triggers when the High-Level alarm float switch is in the On (Up) position.
The alarm will turn off when the Hi Level alarm float switch returns to the Off (Down) position.
The pump continues to run until the Pump Stop/Start float switch is in the Off (Down) position
Set the dip switches on the
main PCB and cycle the
master circuit breaker

18 BIA-nXt-SPC3 Instruction Manual V1.0
14. Quick guide: Transfer – source/destination control
Switched input:
Bridge terminals 6 and 7
Pump On/Off operation is requested by a float in the down position at destination (or a
pressure switch in the delivery line dropping to cut in pressure)
A float switch or probes at the source controls whether the pump will run or not
depending on the liquid level.
Set the dip switches on the
main PCB and cycle the
master circuit breaker
In situations where the destination is a
significant distance from the source it is
possible to control by fitting a normally-
open pressure switch to the delivery line
OR to use a remote wireless sensor to
trigger a switched input.
Connect across 13 and 15

BIA-nXt-SPC3 Instruction Manual V1.0 19
15. Quick guide: Pressure Boosting – switched input
Switched input:
Pump On/Off operation is controlled via a pressure switch on the delivery line.
Additional (optional) run/no run protection can be fitted at the source
When the controller is set to Boosting Mode, Parameters 005 – 007 become
available and can be employed to provide additional control.
•Start delay time Parameter 007 – Default Off
•Stop delay time: Parameter 008 – Default Off
•Maximum run time: Parameter 009 – Default Off
Set the dip switches on the
main PCB and cycle the
master circuit breaker

20 BIA-nXt-SPC3 Instruction Manual V1.0
16. Quick guide: Drainage Mode, 4–20mA level transmitter
A pump with its own float can be used in this
configuration so long as the Parameter 027
is HIGHER than the level at which the pump
float switches the pump off
4-20mA input.
Transmitter accuracy is a percentage of the sensor full range. Choose the 4-20mA
level transmitter with a measuring range according to depth of source tank.
The installer must enter the correct values for 4 parameter settings
1) Level transmitter full measuring range Parameter 026
2) Overflow alarm liquid level depth value Parameter 029
3) Pump cut-in/start liquid level depth value Parameter 028
4) Pump cut-out/stop liquid level depth value Parameter 027
Set to drainage mode, parameters 027 to 029 are in centimetres (cm)
These are the control levels related to the source
Example:Full measuring range: 200cm
Overflow alarm depth value: 150cm
Pump cut-in (start) depth: 100cm
Pump cut-out (stop) depth:20cm
Set the dip switches on the
main PCB and cycle the
master circuit breaker