nxt BIA-nXt-DPC 1-22 User manual

BIA-nXt-DPC1 Instruction Manual V1.0 1
Auto Restart Pump Controller
Dual Pump Protection and Control Module
BIA-nXt-DPC 1-22 PN 811XXX
Installation and Operation Manual

2BIA-nXt-DPC1 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:
In manual mode
PRESS and HOLD the
STORE button for 3
seconds
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-DPC1 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 press and hold
STORE for 5 – 10 seconds until the
controller chirps.
The controller calibration value can be
checked and adjusted from the User Menu
Parameter #015 in the User Menu Pg 14
USER
programming
menu
In manual mode, press
the STORE button.
Page 14
EXPERT
programming
menu
In manual mode, press
STORE +MODE buttons
for 3 seconds
Page 13

4BIA-nXt-DPC1 Instruction Manual V1.0
1. Introduction
Thank you for choosing a Bianco nXt-DPC (Dual Pump Control and protection module.
The Bia nXt-DPC is a module intended to control and protect dual three phase pumps. 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-DPC 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-DPC 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-DPC1 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 con’t ............................................................................................. 9
8. Electrical Connections............................................................................ 10
9. Modbus ................................................................................................... 12
10. Parameter Calibration............................................................................. 12
11. Program Parameters ............................................................................... 13
12. Quick guide: Drainage Mode, float connected to pump .......................... 16
13. Quick guide: Drainage Mode, floats connected to control...................... 17
14. Quick guide: Transfer – source/destination control................................ 18
15. Quick guide: Pressure Boosting – switched input................................... 19
16. Quick guide: Drainage Mode, 4–20mA level transmitter ......................... 21
17. Quick guide: Transfer – source/destination control 4-20mA .................. 22
18. Quick guide: Pressure Boosting 4-20mA ................................................ 23
19. Backup power supply.............................................................................. 24
20. Fault Messages ....................................................................................... 25
21. Warranties – Terms and Conditions ........................................................ 26
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-DPC1 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.
010
‘Drainage’ Mode where the level control input is managed by
a flexible float on the pump. (default) 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-DPC will display the
current dipswitch operating mode (binary code), the
hardware and the software version.

BIA-nXt-DPC1 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,
Open phase protection, Repeated start
Short circuit, Over temperature
Over temperature requires an optional relay
Input Voltage 230V +10% -6%
Rated output power
Per pump
DPC 1-22 nominal 0.37 to 4 kW P2 power
Max 10A input per pump
Minimum working current (per pump) DPC 1-22 = 1 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 = 276V
Under voltage – Default = 192V
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-DPC1 Instruction Manual V1.0
7. Display
The DPC 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-DPC1 Instruction Manual V1.0 9
7. Display con’t
The nXt-DPC 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 nXt-DPC 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-DPC1 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 DPC 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)