Mircom OpenBAS-HV-NX10, OpenBAS-HV-NX10D, OpenBAS-HV-NX10L, OpenBAS-HV-NX10P Installation Manual
OpenBAS-HV-NX10 Series
Building Automation Controller and HVAC
Automation Solution
Installation Manual
LT-2201 Rev. 4.4
October 2017
Table of Contents
1.0 Introduction 7
1.1 OpenBAS-HV-NX10 Series Building Automation Controller .......................................... 7
1.2 Features ......................................................................................................................... 7
2.0 Overview 8
2.1 OpenBAS-HV-NX10 Series Components ...................................................................... 8
3.0 Installation 10
3.1 Parts of the Enclosure .................................................................................................... 10
3.2 Controller Board Connections ........................................................................................ 13
3.3 Installing Accessories .................................................................................................... 13
3.4 Ethernet Controllers (OpenBAS-NWK-ETH3) ................................................................ 17
3.5 DIP Switches .................................................................................................................. 17
3.6 USB ................................................................................................................................ 18
3.7 Reset and Download Buttons ........................................................................................ 18
3.8 Battery ............................................................................................................................ 18
3.9 Enclosure Dimensions ................................................................................................... 19
3.10 Assembly ....................................................................................................................... 20
3.11 Mounting the Enclosure ................................................................................................. 21
4.0 Field Wiring 22
4.1 Wiring the Terminals ...................................................................................................... 22
4.2 Power Supply Connection .............................................................................................. 22
4.3 Universal Inputs ............................................................................................................. 23
4.4 Analog Outputs .............................................................................................................. 31
4.5 Digital Relay Outputs ..................................................................................................... 33
4.6 Field Bus Connections and OpenBAS-ACC-DB9 .......................................................... 36
4.7 Networking ..................................................................................................................... 37
4.8 Connections and LEDs on OpenBAS-HV-HX10D ......................................................... 38
4.9 Circuit Board LEDs ........................................................................................................ 39
5.0 Specifications 40
6.0 Warranty and Warning Information 42
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List of Figures
Figure 1 Parts of the enclosure .................................................................................................... 10
Figure 2 Tabs on enclosure .......................................................................................................... 11
Figure 3 Lift tabs and remove circuit board .................................................................................. 12
Figure 4 Board connections ......................................................................................................... 13
Figure 5 COM ports ...................................................................................................................... 14
Figure 6 Location of factory-installed modules and jumpers ........................................................ 15
Figure 7 The jumper and RS-485 module are removed from P1 ................................................. 15
Figure 8 OpenBAS-ACC-RS232 is installed in P1 ....................................................................... 16
Figure 9 I2C, I2CB, N2, and SPI connections .............................................................................. 17
Figure 10 DIP switches .................................................................................................................. 18
Figure 11 Enclosure (back view) .................................................................................................... 19
Figure 12 Fit the circuit board in enclosure .................................................................................... 20
Figure 13 Enclosure mounted on DIN rail (circuit board not shown) .............................................. 21
Figure 14 Enclosure mounted on DIN rail (back view) ................................................................... 21
Figure 15 Power supply - 24 VAC or 24 VDC ................................................................................ 23
Figure 16 Power supply - 12 VDC .................................................................................................. 23
Figure 17 Universal Inputs ............................................................................................................. 23
Figure 18 Measuring VDC .............................................................................................................. 29
Figure 19 Digital input voltage range .............................................................................................. 30
Figure 20 Analog outputs ............................................................................................................... 32
Figure 21 Relay outputs ................................................................................................................. 33
Figure 22 Field bus connections .................................................................................................... 36
Figure 23 Networking with OpenBAS-NWK-ETH3 with the included cable ................................... 37
Figure 24 Networking with OpenBAS-NWK-ETH3 over RS-458 .................................................... 37
Figure 25 Networking with RS-485 ................................................................................................. 38
Figure 26 Connections and LEDs on the OpenBAS-HV-NX10D ................................................... 38
Figure 27 LEDs .............................................................................................................................. 39
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List of Tables
Table 1 OpenBAS-HV-NX10 Series Controllers ......................................................................... 8
Table 2 OpenBAS-HV-NX10 Series Accessories ....................................................................... 8
Table 3 OpenBAS-HV-NX10 Series Compatible Modules .......................................................... 9
Table 4 Analog Input Wiring ........................................................................................................ 25
Table 5 Wiring a 1000 Ω temperature sensor ............................................................................. 29
Table 6 Digital Input Wiring ......................................................................................................... 31
Table 7 Analog Output Wiring ..................................................................................................... 32
Table 8 Surge Protection on Relay Outputs ............................................................................... 34
Table 9 Field Bus Ports ............................................................................................................... 36
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List of Tables
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1.0 Introduction
This document provides information on installing the OpenBAS-HV-NX10 series Building
Automation Controller.
1.1 OpenBAS-HV-NX10 Series Building Automation Controller
Mircom’s OpenBAS-HV-NX10 Series building automation controller is an HVAC controller with
an integrated PLC (programmable logic controller) and scheduler. It includes 18 hardware
input/output points, 2 RS-485 field bus connections, USB, SPI, and I
HV-NX10L and OpenBAS-HV-NX10D models have an operator interface with LCD display
and keyboard.
1.2 Features
Mircom’s OpenBAS-HV-NX10 series Building Automation Controller integrates into Mircom’s
unified platform for automating HVAC and mechanical rooms as well as incorporating energy
management features and lighting control to offer building owners and managers a seamless
operation with the following features:
• Modular design to cover any small, medium or large project.
• Industry standard field bus protocols to integrate into any existing BAS system, such as
BACnet, Modbus, Optomux, N2-Open, and ASCII.
2
C buses. The OpenBAS-
• Advanced Networking to integrate into IP networks and use the most advanced features
and protocols such as distributed computing, USB and Cloud storage, HTML5,
JavaScript, XML, Ajax, SMS, and GSM.
• Universal inputs to connect any industry standard sensors.
• Modular add-ons for every Building Automation System solution.
• The OpenBAS software which provides owners and managers a single solution for
managing all their building’s automation needs.
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2.0 Overview
2.1 OpenBAS-HV-NX10 Series Components
2.1.1 Controllers
Table 1 OpenBAS-HV-NX10 Series Controllers
Picture Model Description
HVAC controller
• Integrated programmable logic
OpenBAS-HV-NX10P
OpenBAS-HV-NX10L
controller and scheduler
• 18 hardware input/output points
• 2 RS-485 field bus connections
• USB, SPI and 1²C buses
HVAC controller plus the OpenBASHV-LCD display
• Integrated programmable logic
controller and scheduler
• 18 hardware input/output points
• 2 RS-485 field bus connections
• USB, SPI and 1²C buses
• Operator interface with LCD and
keyboard
HVAC controller plus the OpenBASHV-CORE2 display
• 32 bit dual core processor
• Scheduler and 3 integrated
programmable logic controllers
OpenBAS-HV-NX10D
• 18 hardware input/output points
• 3 RS-485 field bus connections,
• USB, SPI and 1²C buses
• Operator interface with graphical
LCD, keyboard, and secondary
USB for data storage
2.1.2 Accessories
Accessories are powered from the controller.
Table 2 OpenBAS-HV-NX10 Series Accessories
Model Description
OpenBAS-ACC-RS485 Optically isolated RS-485 converter
OpenBAS-ACC-RS232 RS-232 converter
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Table 2 OpenBAS-HV-NX10 Series Accessories (Continued)
Model Description
OpenBAS-ACC-DB9 DB9 adapter
OBS-ACC-32K128 128 KB plus 32 KB memory expansion
OpenBAS-ACC-TE1K 1000 Ω resistive silicon temperature sensor
2.1.3 Compatible Modules
Compatible modules are mounted separately from the controller.
Table 3 OpenBAS-HV-NX10 Series Compatible Modules
Model Description
Wireless 433 MHz RF receiver that integrates up to 10
OpenBAS-HV-RF433R
wireless transmitters and thermostats into OpenBAS-HVNX10 series controllers
Mounts in a DIN rail-mounted box
Overview
OpenBAS-NWK-ETH3
Ethernet controller with support for multiple protocols
• 2 field bus connections
2
• 1 I
C connection
• Mounts in a DIN rail-mounted box
• Powered separately
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3.0 Installation
i
Circuit board
Base with
mounting clip
Enclosure
Cover (OpenBAS-HV-NX10P)
or display
(OpenBAS-HV-NX10L and
HV-NX10D)
Note: Installation of OpenBAS-HV-NX10 series automation controllers should be in
accordance with the Canadian Electrical Code or the National Electrical Code,
and comply with all local regulations. Final acceptance is subject to the Local
Authority Having Jurisdiction (AHJ).
3.1 Parts of the Enclosure
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Figure 1 Parts of the enclosure
Installation
!
To remove the circuit board from the enclosure
Caution: Risk of Electric Shock. Disconnect the mains power and disconnect the
controller from all wiring before opening the enclosure.
Attention: Always hold circuit boards by the edges to prevent damage from static
electricity. Always wear an anti-static bracelet when handling circuit
boards.
1. On OpenBAS-HV-NX10P, remove the cover. On OpenBAS-HV-NX10L and OpenBASHV-NX10D, remove the 4 screws and then remove the display.
2. Insert a flathead screwdriver under the tabs on the enclosure, shown in Figure 2, in order
to lift the tabs and remove the base.
Figure 2 Tabs on enclosure
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Installation
circuit board
!
3. Hold the circuit board with one hand, and with the other hand lift the tabs so that you can
remove the circuit board from the enclosure. See Figure 3.
Lift tabs and remove
Circuit board
Figure 3 Lift tabs and remove circuit board
Attention: Be careful not to break the tabs. Do not apply excessive force.
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3.2 Controller Board Connections
COM1, COM2, COM3
Universal
inputs 1-8
Power
Analog
outputs 5-8
outputs 1-4
Connections for
communication
converters
connection
DIP switches
button
button
Battery
connection
!
Installation
USB
Connection for
memory expansion
or wireless receiver
Connection for
memory expansion or
OpenBAS-HV-LCD
(OpenBAS-HV-NX10L
only)
Connection for
OpenBAS- HV-CORE2
display
(OpenBAS-HV-NX10D
only)
SPI port for
Ethernet controller
Download
outputs 1-2
Figure 4 Board connections
Reset
Relay
Relay
3.3 Installing Accessories
Attention: This job must be performed only by a certified technician as dangerous
voltages might be present inside of the enclosure.
Always disconnect the power before installing accessories.
3.3.1 Communication Converters (OpenBAS-ACC-RS485, OpenBAS-ACCRS232)
By default, the field bus ports (labeled COM1, COM2 and COM3) are configured as RS-485
through factory-installed modules. They can be changed to RS-232 or optically isolated RS485 by installing the OpenBAS-ACC-RS232 or OpenBAS-ACC-RS485 converters.
The communication converters OpenBAS-ACC-RS485 and OpenBAS-ACC-RS232 attach to
the connections labeled P1, P2, and P3 in Figure 5 below. Figure 5 also shows the relationship
between the 3 converters and the field bus connections (labeled COM1, COM2, and COM3).
P1 controls COM1, P2 controls COM2, and P3 controls COM3.
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Installation
P1 P2 P3
COM1 COM2
COM3
Field bus
connections and
connection for
OpenBAS-ACC-DB9
Connections for
OpenBAS-ACC-RS485
and
OpenBAS-ACC-RS232
i
Figure 5 COM ports
For example, if OpenBAS-ACC-RS485 is installed in P1 and OpenBAS-ACC-RS232 is
installed in P2, then COM1 functions as optically isolated RS-485, and COM2 functions as RS-
232.
Note: P3 and COM3 are functional only on OpenBAS-HV-NX10D.
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