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CAN2GO - Second Generation  

VAV Controller

Primary Control Unit
Date Last Saved: 4/25/2013 3:11:32 PM

Product Name(s): VAV Controller
Product Description: The VAV controller is a general purpose programmable controller with an integrated pressure sensor and actuator.
Product Application(s): Wireless control of end devices, up to 128 inputs and 128 outputs. Wired control of end devices, up to 6 inputs and 6 outputs. HVAC and Lighting room and zone control. Unitary equipment such as rooftop HVAC units, air handling units, heat pumps, dehumidification units. Mechanical rooms and equipment closets. Metering
Point Quantity Characteristics
Analog Input (AI):
Digital Input (DI):
Universal Input (AI or DI): 6 0-10 Volt
4-20 mA with 249 Ohm external resistor
14-bit resolution
Analog Output (AO): 4 0-12 V, nominal 50 mA max each
12-bit resolution
Digital Output (DO):
Universal Output (UO):
Control Unit Model #:AIDIUIDOAOUOOther
VA2 6 4 2 128
A/D Converter Resolution
8 bit
10 bit
12 bit
16 bit
Other 14 bit
D/A Converter Resolution
6 bit
8 bit
10 bit
No Analog Output
Other 12 bit
HOA switches provided on each output?
Note: These are also available as an add-on from 3rd party vendors.
Both AO and DO
DO Only
Indicating status LED on each output?
AO and DO
AO Only
DO Only
Integral Flow Sensor? Yes
Integral Damper Actuator? Yes
Motor: Belimo LM24E
Torque: 45 in-lb
Angles of Rotation: 0 to 95 degrees
Power consumption: 3 VA, Class 2 power from Controller.

Accomodates 1/4" to 3/4" shaft diameters
Can controller accept occupant override from thermostat? Yes, via LVA script.
Can controller accept occupancy sensor input? Yes, via LVA script.
Expander Boards
Network Ports, Protocol(s), and Speed(s) Supported
(Note: See 'Architecture' for network details)
(1) Ethernet (10/100 Mbps) for BACnet/IP
External Communication Ports, Speeds and Access Devices (1) CANbus (125-500 Kbps)
(1) RP SMA antenna for Zigbee
(1) RP SMA antenna for EnOcean
(1) EIA-485 for MODbus
Additional Information (Optional)
Network Accessing Capabilities via Controller
Access controller only
Access controller plus additional controllers on network segment / LAN
Access all controllers on system
No access available on this controller
Controller Access Devices
Local Display Panel (controller-mounted)
Local Display Panel (zone-mounted)
Handheld Interface Device (proprietary device)
PDA (3rd-Party HID)
Zone-Based port (details below)
Zone-Based Interface Access
Zone Interface Hardware
Zone-Mounted touchpad (thermostat or stand-alone display)
HID (proprietary device)
PDA (3rd party HID, with software)
*Note: This section covers the capabilities for accessing the controller or other parts of the network from the controller (i.e. 'bottom-up').
Standard access functionality is covered in the Architecture and Software sections.
**Does NOT include front-end OI functions. See vendor for specific functions available.
Functions Available Through Field Interface**:View ParamsChange ParamsChange
O&M SupportTAB/Cx Support
Local Display Panel (controller-mounted)
Local Display Panel (zone-mounted)
Handheld Interface Device (proprietary device)
PDA (3rd-Party HID)
Zone-Based port (details below)
Microprocessor(s) ARM9 32-bit, 400 MHz
Clock Type
Powered, battery-backed 10,000 hours backup
Battery powered
Powered, no battery backing
Clock Synchronization Information Not Provided
Volatile Memory (RAM) Capacity 64 MB RAM
Volatile Memory (RAM) Uses
RAM use unrestricted
RAM use restricted as shown below
Information Not Provided
Program Execution / Calculation storage
Data / Trends / Alarms storage
Configuration / Parameter storage
Control Programming storage
Is Volatile Memory Supported By Battery? No
Battery Type(s) Information Not Provided
Battery Life Information Not Provided
Backup Battery Operating Time Information Not Provided
Non-Volatile Memory Capacity (EEPROM/Flash)* 2 GB Flash
Non-Volatile Memory Uses
Data / Trends / Alarms / Calculation Storage
Configuration / Parameter Storage
Control Programming Storage
Controller Operating System
Additional Information
* Items in NV memory are not lost upon power or battery failure. Other types of NV memory such as EPROM, NOVROM, etc. do not directly impact system performance.
Can trend data be stored in this controller? Yes
How many total trend values can be stored? Depending on file system size (up to 1.5 GB)
What is the controllers role in trending? Capture specified points and store in CSV files.
Can controller be programmed to 'push' data to archive or are trends 'pulled' from controller?
When full, does controller automatically send up trend data, overwrite data, or stop logging data? Stop logging data.
Programming Method(s) LVA scripts
Resident vs Non-Resident Program Execution Resident
Resident/Supervisory. This controller supervises the scheduling of other controllers.
Resident/Stand Alone. This controller contains its own schedule.
Non-Resident. This controller is dependent upon another controller for its schedule.
None. This controller has no scheduling features.
Resident Energy Management
Energy management algorithms for this controller can be custom programmed
Pre-programmed/built-in algorithms available, and are fully editable using custom programming
Pre-Programmed/built-in with limited editing via template-based programming
Controller is not typically used for energy management functions
Specific Pre-Programmed Algorithms Available
None (custom programming only)
None (not applicable)
Optimal Start/Optimal Stop
Peak Demand Limiting/Load Shedding
Economizer (enthalpy, dry-bulb, CO2, modulating/2-position, etc.)
Additional Energy Management functions are resident at SI
Additional Programming Functions
DDC Loops (P, PI, PID) Information Not Provided
Automatic PID Tuning Feature Information Not Provided
Automatical-Dial Alarm Support Information Not Provided
Does controller perform multiple retries and buffer/store alarm until connection is made? Information Not Provided
Are multiple destinations possible? Information Not Provided
Upon controller power loss or hardware failure:
Are network communications affected? No
Is loss recognized on/by the network and alarm reported? Yes
DO and AO response?
Outputs fail to a user pre-specified position
Outputs fail to a normal (unpowered) position
Outputs fail to last position
Volatile memory functions?
Retained for life of backup battery
Upon restoration of power does the controller:
Auto-reboot without operator intervention? Yes
Automatically reset/synchronize the clock? Yes (RTC or SNTP)
Update all monitored functions? Yes
Generate an alarm if backup battery is dead? No
Upon network or communications failure does controller:
Continue to operate standalone? Yes
Operate with last global settings or user-specified value? N.A.
Do broken network segments continue to communicate within the remaining segment?
(Note: May depend on proper termination of segments for higher speed networks.)
Does network automatically reconfigure upon restoration? Yes, on ZigBee network according to the ZigBee specifications.
Does network store 'loss of communications' alarm with time of event? No
Additional Information (optional)
Self Test Diagnostics
Does controller have internal self-test diagnostics to check:
Processor failure? No
Internal hardware failure? No, but detection is supported.
Open/shortened sensor? No
Control Enclosure
Power Supply Required 24 VAC +/- 15%; 50/60Hz; Class 2
24 VDC +/- 10%
VA 3 VA + Output (VAC) consumption
1.2W + Output (VDC) consumption
Surge Protection
Underwriters Laboratories UL 916
CE Yes
LonMark Certified
No - but LonWorks compatible
Information not provided
BACnet (BTL) Certified
Not submitted for testing
Information not provided