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MACH-Air VAV Controller

Secondary Control Units
Date Last Saved: 7/13/2009 10:49:40 AM

Product Name(s): MACH-Air VAV Controller
Product Description: The MACH-Air VAV controller is a programmable, 3 input, 3 output, shaft-mounted damper actuator, direct digital controlling device that meet the needs of variable air volume (VAV) control. This application-specific MACH controller features on-board velocity measurement, and a 35 in-lb Belimo actuator.
Product Application(s): The MACH-Air is for low-point VAV applications where programming and data acquisition are required.
Point Quantity Characteristics
Analog Input (AI): N.A.
Digital Input (DI): N.A.
Universal Input (AI or DI): See Below 0-5 VDC
4-20 mA
Dry contact
40 Hz pulse counting
Analog Output (AO): N.A.
Digital Output (DO): See Below Triac Output (24VAC @ 1A)
Universal Output (UO):
Control Unit Model #:AIDIUIDOAOUOOther
MA 3 3 5
MA-T 3 2 1 5
A/D Converter Resolution
8 bit
10 bit
12 bit
16 bit
D/A Converter Resolution
6 bit
8 bit
10 bit
No Analog Output
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, flow through thermistor.
0-1" W.C.
Integral Damper Actuator? Yes, 35in-lb Belimo actuator.
Can controller accept occupant override from thermostat? Yes
Can controller accept occupancy sensor input? Yes
Expander Boards N.A.
Network Ports, Protocol(s), and Speed(s) Supported
(Note: See 'Architecture' for network details)
(1)-BACnet, EIA-485 MS/TP @ 76.8 kbps
(1)-Reliable, EIA-485/Token Bus @76.8 kbps.
External Communication Ports, Speeds and Access Devices (1)-SMART-Net-supports up to 4 programmable SMART-Sensors and the SETUP-Tool
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
Laptop/PC with an X-Port convertor
Local Display Panel (controller-mounted)
Local Display Panel (zone-mounted) MACH-Vision User Interface Controller
Handheld Interface Device (proprietary device) SETUP-Tool
PDA (3rd-Party HID)
Zone-Based port (details below) SMART-Sensor
Zone-Based Interface Access The SETUP-Tool is used to configure the MACH-Air. The SMART-Sensor allows operators to adjust points mapped to the SMART-Sensor.
Zone Interface Hardware
Zone-Mounted touchpad (thermostat or stand-alone display) SMART-Sensor
HID (proprietary device)
PDA (3rd party HID, with software)
Laptop/PC with an X-Port convertor
Other SETUP-Tool
*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
Laptop/PC with an X-Port convertor
Local Display Panel (controller-mounted)
Local Display Panel (zone-mounted) MACH-Vision User Interface Controller
Handheld Interface Device (proprietary device) SETUP-Tool
PDA (3rd-Party HID)
Zone-Based port (details below) SMART-Sensor
Microprocessor(s) 25 MHz,16-bit embedded microcontroller
Clock Type
Powered, battery-backed
Battery powered
Powered, no battery backing
Clock Synchronization MS/TP network
Volatile Memory (RAM) Capacity 32 KB RAM user database
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) N.A.
Battery Life N.A.
Backup Battery Operating Time N.A.
Non-Volatile Memory Capacity (EEPROM/Flash)* 128 KB Flash EEPROM
Non-Volatile Memory Uses
Data / Trends / Alarms / Calculation Storage
Configuration / Parameter Storage
Control Programming Storage
Controller Operating System
Other firmware
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? Up to 2 trend logs consisting of 150 samples of 6 points per log.
What is the controllers role in trending? To gather data for use in analyzing system performance.
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? Overwrite data
Programming Method(s) Control-BASIC
Resident vs Non-Resident Program Execution Resident, programs are executed on each panel.
Resident/Supervisory. This controller supervises the scheduling of other controllers.
Resident/Stand Alone. This controller contains its own schedule. Programmed via Control-BASIC in RC-Studio
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.)
Other MACH-Air ships with factory air handling program
Additional Energy Management functions are resident at SI
Additional Programming Functions
DDC Loops (P, PI, PID) 4 PID Loops
Automatic PID Tuning Feature Yes, through Control-BASIC programming
Automatical-Dial Alarm Support Yes, through Control-BASIC alarm statements.
Does controller perform multiple retries and buffer/store alarm until connection is made? No, alarm database collects all alarms and are visible through RC-Studio software.
Are multiple destinations possible? Yes, each operator workstation can display all alarms in the system. Each operator workstation can be individually configured to display certain alarms.
Upon controller power loss or hardware failure:
Are network communications affected? No
Is loss recognized on/by the network and alarm reported? Controller offline alarms are generated in RC-Studio
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
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
Does network store 'loss of communications' alarm with time of event? Yes
Additional Information (optional)
Self Test Diagnostics
Does controller have internal self-test diagnostics to check:
Processor failure? Yes, LED diagnostics show certain conditions
Internal hardware failure? Yes, solid LED indicates hardware failure
Open/shortened sensor? Goes to full scale reading
Control Enclosure NEMA Type 1
Power Supply Required
Voltage Class 2, 24 VAC / VDC transformer
VA 25
Surge Protection Yes, Transorb Device.

Protection for fast voltage spikes and onboard fast transients.
Underwriters Laboratories UL 916 - Open Energy Management Equipment
LonMark Certified
No - but LonWorks compatible
Information not provided
BACnet (BTL) Certified
Yes BACnet Application Specific Controller
Not submitted for testing
Information not provided