OpenBAS-LC-NX12R
Lighting Controller
Installation Manual
LT-6180 Rev. 2.3
June 2017
Table of Contents
1.0 Introduction 6
1.1 OpenBAS-LC-NX12R Lighting Controller ...................................................................... 6
1.2 Features ......................................................................................................................... 6
2.0 Overview 7
2.1 OpenBAS-LC-NX12R Components ............................................................................... 7
2.1.1 Controller ....................................................................................................................... 7
2.1.2 Accessories .................................................................................................................... 7
2.1.3 Compatible modules ...................................................................................................... 8
3.0 Installation 9
3.1 Parts of the Enclosure .................................................................................................... 9
3.2 Controller Board Connections ........................................................................................ 12
3.3 Installing Accessories .................................................................................................... 13
3.3.1 Memory Expansion Card (OBS-ACC-32K128) and Wireless Receiver
(OpenBAS-HV-RF433R) ................................................................................................ 13
3.4 Reset and Download Buttons ........................................................................................ 13
3.5 USB ................................................................................................................................ 14
3.6 Battery ............................................................................................................................ 14
3.7 Enclosure Dimensions ................................................................................................... 15
3.8 Assembly ....................................................................................................................... 16
3.9 Mounting the Enclosure ................................................................................................. 17
4.0 Field wiring 19
4.1 To Wire the Terminals .................................................................................................... 19
4.1.1 Required Tools ............................................................................................................... 19
4.1.2 Installation Tips .............................................................................................................. 19
4.2 Power Supply Connection .............................................................................................. 19
4.3 Manual Override Terminals ............................................................................................ 21
4.4 Jumper J1 ...................................................................................................................... 22
4.5 Universal Input ............................................................................................................... 22
4.5.1 Tips for the universal input ............................................................................................. 23
4.5.2 Analog Input ................................................................................................................... 24
4.5.3 Resistive 1000 Ω Temperature Sensor .......................................................................... 26
4.5.4 Measuring 24 VDC with the Analog Input ...................................................................... 27
4.5.5 Digital Input .................................................................................................................... 27
4.6 Outputs .......................................................................................................................... 29
4.7 Adding OpenBAS-LC-NX12R to an Ethernet Network .................................................. 30
4.8 Networking OpenBAS-LC-NX12R Controllers together ................................................. 31
4.8.1 X1 and X2 Ports ............................................................................................................. 31
4.8.2 Field Bus Connection ..................................................................................................... 32
5.0 Specifications 33
6.0 Master Warranty and Warning Information 35
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List of Figures
Figure 1 Parts of the enclosure .................................................................................................... 9
Figure 2 Tabs on enclosure .......................................................................................................... 10
Figure 3 Lift tabs and remove circuit board .................................................................................. 11
Figure 4 Controller board connections ......................................................................................... 12
Figure 5 Connections for display, memory expansion cards, and wireless receiver .................... 13
Figure 6 Enclosure (back view) .................................................................................................... 15
Figure 7 Fit the circuit board in enclosure .................................................................................... 16
Figure 8 Enclosure mounted on DIN rail ...................................................................................... 17
Figure 9 Enclosure mounted on DIN rail (back view) ................................................................... 18
Figure 10 Power supply - 24 VAC or 24 VDC ................................................................................ 20
Figure 11 Manual Override Terminals ............................................................................................ 21
Figure 12 Manual override switch wiring ........................................................................................ 21
Figure 13 Jumper J1 ...................................................................................................................... 22
Figure 14 Universal input ............................................................................................................... 23
Figure 15 Measuring VDC .............................................................................................................. 27
Figure 16 Digital input voltage range .............................................................................................. 28
Figure 17 Outputs ........................................................................................................................... 29
Figure 18 Connection to a latching lighting relay ........................................................................... 29
Figure 19 OpenBAS-LC-NX12R with 12 lighting relays ................................................................. 30
Figure 20 Connecting OpenBAS-NWK-ETH3 to OpenBAS-LC-NX12R ........................................ 30
Figure 21 Networking with the X1 and X2 ports ............................................................................. 31
Figure 22 Networking with RS-485 ................................................................................................. 32
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List of Tables
Table 1 OpenBAS-LC-NX12R Controller .................................................................................... 7
Table 2 OpenBAS-LC-NX12R Accessories ................................................................................ 7
Table 3 OpenBAS-LC-NX12R Compatible Modules ................................................................... 8
Table 4 Analog Input Wiring ........................................................................................................ 24
Table 5 Analog Input Wiring ........................................................................................................ 26
Table 6 Digital Input Wiring ......................................................................................................... 28
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1.0 Introduction
This document provides information on installing the OpenBAS-LC-NX12R lighting controller.
1.1 OpenBAS-LC-NX12R Lighting Controller
The OpenBAS-LC-NX12R Lighting Controller can control up to 12 external lighting relays with
bipolar 24 VAC/VDC coils, and it can connect to mainstream BAS (building automation
system) protocols.
It has an input for an external AUTO / OFF / MANUAL switch for local operation, as well as a
universal input for 0-10 V, 4-20 mA, or resistive temperature sensor inputs.
1.2 Features
The OpenBAS-LC-NX12R Lighting 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.
• 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-LC-NX12R Components
2.1.1 Controller
Table 1 OpenBAS-LC-NX12R Controller
Picture Model Description
Lighting controller
• programmable logic controller and
scheduler
• 12 outputs to control latching 24 V
lighting relays
OpenBAS-LC-NX12R
• expandable to up to 48 zones
• USB and I²C buses
• 1 RS-485 field bus connection with
support for multiple protocols
• 1 universal input and 2 local
override inputs
• LED display
2.1.2 Accessories
Accessories are powered from the controller.
Table 2 OpenBAS-LC-NX12R Accessories
Model Description
OBS-ACC-32K128 128KB EEPROM plus 32 KB non-volatile RAM memory expansion
OpenBAS-ACC-TE1K 1000 Ω resistive silicon temperature sensor
Wireless 433 MHz RF receiver that integrates up to 10 wireless
OpenBAS-HV-RF433R
transmitters and thermostats into OpenBAS-LC-NX12R controllers
Mounts in a DIN rail-mounted box
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2.1.3 Compatible modules
Compatible modules are mounted separately from the controller.
Table 3 OpenBAS-LC-NX12R Compatible Modules
Model Description
Ethernet controller with support for multiple protocols
Overview
OpenBAS-NWK-ETH3
• 2 field bus connections
• Mounts in a DIN rail-mounted box
• Powered separately
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3.0 Installation
i
Circuit board
Base with
mounting clip
Enclosure
OpenBAS-LC-FPDISP
LED display
Screws (x 4)
Note: Installation of OpenBAS-LC-NX12R controllers should be in accordance with the
Canadian Electrical Code or the National Electrical Code, and comply with all
local regulations. Final acceptance subject to the Local Authority Having
Jurisdiction (AHJ).
3.1 Parts of the Enclosure
Figure 1 Parts of the enclosure
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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. 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
Lift tabs and remove
circuit board
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.
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
USB
connection
Power
24 VAC/VDC
COM1
Universal
input
To latching
lighting
relays
To latching
lighting
relays
To latching
lighting
relays
To latching
lighting
relays
Manual
override o
Manual
override on
Networking
ports
Reset button
Jumper J1
Download button
Connection for
display
Connection for
memory expansion
or wireless receiver
Battery
connection
Installation
Figure 4 Controller board connections
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