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Johnson Controls - Metasys Extended Architecture  

LN Series VAV Profile Application Controller;LN Series VVT Profile Application Controller

Secondary Control Units
LN Series VAV and VVT Application Controllers
Date Last Saved: 5/11/2005 10:41:01 AM

Product Name(s): LN Series VAV Profile Application Controller;LN Series VVT Profile Application Controller
Product Description: The LN Series VAV and VVT Profile Application controllers are application specific controllers with an optional actuator. The VAV Profile Controllers are configured with a LNS tool plug-in.
Product Application(s): Variable volume air and variable volume temperature HVAC systems.
Point Quantity Characteristics
Analog Input (AI): N.A.
Digital Input (DI): N.A.
Universal Input (AI or DI): See Below Dry Contact
0-10 VDC
4-20 mA
Analog Output (AO): See Below 0-10 VDC (linear)
0-12 VDC (PWM or Digital)
Digital Output (DO): See Below Triac 24 VAC @ 1.0 Amp
Universal Output (UO): N.A.
Other: See Below (1) Differential Pressure sensor (See VAV controllers for description)

(1) Damper motor actuator with or without feedback. If feedback is used only 3 universal inputs are available. (See VAV controllers for description)
Control Unit Model #:AIDIUIDOAOUOOther
LN-VAVL-0 4 3 1 2
LN-VAVLF-0 3 3 1 2
LN-VAVLN-0 4 3 1 1
LN-VAVL-0 4 3 1 1
LN-VAVLF-0 3 3 1 2
LN-VVTLN-0 4 3 1 0
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? (1) Differential Pressure Sensor 0.5-1.2" H2O optional. Accuracy +/- 3% full scale.
Integral Damper Actuator? (1) LM24-MUS Motor optional
Torque: 35 in-lbs
Angle of Rotation: 95 degrees adjustable
Can controller accept occupant override from thermostat? Information not provided
Can controller accept occupancy sensor input? Information not provided
Expander Boards N.A.
Network Ports, Protocol(s), and Speed(s) Supported
(Note: See 'Architecture' for network details)
(1) TP/FT-10, LonTalk, @ 78 Kbps
External Communication Ports, Speeds and Access Devices Information not provided
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)
Other Information not provided
Zone-Based Interface Access Information not provided
Zone Interface Hardware
Zone-Mounted touchpad (thermostat or stand-alone display)
HID (proprietary device)
PDA (3rd party HID, with software)
Other Information not provided
*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)
Other Information not provided
Microprocessor(s) Neuron 3150, 8 bit @10 MHz
Clock Type
Powered, battery-backed
Battery powered
Powered, no battery backing
Clock Synchronization Information not provided
Volatile Memory (RAM) Capacity No
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? N.A.
Battery Type(s) N.A.
Battery Life N.A.
Backup Battery Operating Time N.A.
Non-Volatile Memory Capacity (EEPROM/Flash)* 64 Kb Flash
Non-Volatile Memory Uses
Data / Trends / Alarms / Calculation Storage
Configuration / Parameter Storage
Control Programming Storage
Controller Operating System
Other APB applications
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? 12,000 configuration and trend samples
What is the controllers role in trending? Information not provided
Can controller be programmed to 'push' data to archive or are trends 'pulled' from controller? Information not provided
When full, does controller automatically send up trend data, overwrite data, or stop logging data? Information not provided
Programming Method(s) Plug-in that works with LNS based Network Management tool
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.)
Other Occupancy bypass and window contacts
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? Information not provided
DO and AO response?
Outputs fail to a user pre-specified position
Outputs fail to a normal (unpowered) position
Outputs fail to last position
Other Information not provided
Volatile memory functions?
Retained for life of backup battery
Other N.A.
Upon restoration of power does the controller:
Auto-reboot without operator intervention? Information not provided
Automatically reset/synchronize the clock? Information not provided
Update all monitored functions? Information not provided
Generate an alarm if backup battery is dead? Information not provided
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? Information not provided
Does network store 'loss of communications' alarm with time of event? Information not provided
Additional Information (optional)
Self Test Diagnostics
Does controller have internal self-test diagnostics to check:
Processor failure? Information not provided
Internal hardware failure? Information not provided
Open/shortened sensor? Information not provided
Control Enclosure PVC: Flammable class VO
Power Supply Required
Voltage 24 VAC +/- 15%, 50/60 Hz or 24 VDC
VA Maximum: 10 VA
Typical: 5 VA
Surge Protection 5 Amp removable fuse
Underwriters Laboratories UL Listed
LonMark Certified
Yes LonMark Interoperability Guidlines Version 3.3
No - but LonWorks compatible
Information not provided
BACnet (BTL) Certified
Not submitted for testing
Information not provided