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Variable frequency drive · BACnet points list
TECO-Westinghouse L510 inverter (built-in BACnet MS/TP) BACnet points list
Updated 12 November 2026
The L510 is a compact inverter with BACnet MS/TP built into its RS-485 port. Its object list follows the F510 layout but is smaller: one analog output terminal, eight preset speeds (AO 7-14), five digital inputs and one relay. Analog inputs are scaled in percent and frequencies run to 599 Hz.
This page lists 53 BACnet objects for the TECO-Westinghouse L510 inverter (built-in BACnet MS/TP) — 23 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from TECO-Westinghouse’s own free documentation, linked below.
- Manufacturer
- TECO-Westinghouse
- Model
- L510 inverter (built-in BACnet MS/TP)
- Equipment
- Variable frequency drive
- Equipment type
- VFDs & pumps
- BACnet objects
- 53 (23 writable)
- Transport
- BACnet MS/TP
- Firmware
- 0.14 (Firmware_Revision in the device object table)
- Also known as
- L510, TECO L510, TECO-Westinghouse L510, L510 BACnet, TECO-L510-AC001
Reference only, provided as-is: verify against TECO-Westinghouse’s current documentation and the live device before use. Not official TECO-Westinghouse information. Terms of use.
BMS integration notes: TECO-Westinghouse L510 inverter (built-in BACnet MS/TP)
Wire the drive's RS-485 port to the MS/TP trunk and select BACnet as the drive's communication mode. Set the run and frequency command sources to communication (AO 23 / AO 26 mirror those parameters), then write the speed to AO 0 and start/stop with BV 0. Read BI 0, AI 4, AI 5 and BI 2 / AI 2 for status and faults.
Minimum points to map
The short list most integrators start with — enough to run the unit from a BMS. Map more as the job needs.
| Object | Name | Why | Access |
|---|---|---|---|
| BV 0 | RUN/STOP | Run/stop command | Write |
| AO 0 | Set frequency | Frequency command, Hz | Write |
| BI 0 | Run/Stop | Running status | Read |
| AI 4 | Frequency | Output frequency, Hz | Read |
| AI 5 | Current | Output current, A | Read |
| BI 2 | status | Drive fault (OK / Fault) | Read |
| AI 2 | Error code | Latest fault code | Read |
Enable & remote start
Set the main run command source (AO 23) and main frequency command source (AO 26) to the communication option; the addendum does not print the setting values for the L510.
Network setup
- Station number, baud rate and BACnet mode selection are drive parameters; the object list only reads them back (AI 12-15).
- Max_Master is fixed at 127 and Max_Info_Frames at 1.
Watch out for
- AO 3, AO 23-30 and AV 0-2 are drive parameters; avoid cyclic writes.
- AO 1 is read-only although typed as Analog Output; it reports the terminal output voltage.
TECO-Westinghouse L510 inverter (built-in BACnet MS/TP) BACnet objects
Type: AI, AO, AV, BI, BO, BV, MI/MO/MV (multi-state) · Access: Read read-only, Write writable, Command writable with a priority array.
| Description | States | |||||
|---|---|---|---|---|---|---|
| AI | 0 | TM2 AIN | AVI input (0-100) | % | Read | |
| AI | 1 | TM2 AIN2 | ACI input (0-100) | % | Read | |
| AImin | 2 | Error code | Recent fault message (0-43) | Read | ||
| AI | 3 | Freq cmd | Frequency command (0-599) | Hz | Read | |
| AImin | 4 | Frequency | Output frequency (0-599) | Hz | Read | |
| AImin | 5 | Current | Output current | A | Read | |
| AI | 6 | Control Mode | Control mode (0-1) | Read | ||
| AI | 7 | Motor R-Volt | Motor rated voltage | V | Read | |
| AI | 8 | Motor R-HP | Motor rated power | hp | Read | |
| AI | 9 | Motor R-RPM | Motor rated rotation speed | rpm | Read | |
| AI | 10 | Motor R-Hz | Motor rated frequency | Hz | Read | |
| AI | 11 | CarrierFreq | Carrier frequency (1-16) | kHz | Read | |
| AI | 12 | Comm Station | Inverter communication station (1-254) | Read | ||
| AI | 13 | BaudRate | Baud rate setting (0-3) | Read | ||
| AI | 14 | BacnetSel | Communication mode selection (0-1) | Read | ||
| AI | 15 | DevInstance | Inverter number (1-254) | Read | ||
| AOmin | 0 | Set frequency | Frequency command (0-599) | Hz | Write | |
| AO | 1 | TB2 AO1 | Output voltage 1 (0-10) | V | Read | |
| AO | 3 | Motor R-Amp | Motor rated current (range not printed) | A | Write | |
| AO | 4 | PwrL Sel | Momentary stop and restart selection (0-1) | Read | ||
| AO | 5 | RestartSel | Number of fault auto-restart attempts (0-10) | Read | ||
| AO | 6 | RestartDelay | Fault auto-restart time (0-800) | s | Read | |
| AO | 7 | FreqCommand1 | Preset speed frequency, stage 0 (0-599) | Hz | Write | |
| AO | 8 | FreqCommand2 | Preset speed frequency, stage 1 (0-599) | Hz | Write | |
| AO | 9 | FreqCommand3 | Preset speed frequency, stage 2 (0-599) | Hz | Write | |
| AO | 10 | FreqCommand4 | Preset speed frequency, stage 3 (0-599) | Hz | Write | |
| AO | 11 | FreqCommand5 | Preset speed frequency, stage 4 (0-599) | Hz | Write | |
| AO | 12 | FreqCommand6 | Preset speed frequency, stage 5 (0-599) | Hz | Write | |
| AO | 13 | FreqCommand7 | Preset speed frequency, stage 6 (0-599) | Hz | Write | |
| AO | 14 | FreqCommand8 | Preset speed frequency, stage 7 (0-599) | Hz | Write | |
| AO | 23 | RunMode | Main run command source selection (0-2) | Write | ||
| AO | 24 | ReverseOper | Direction lock command (0-1) | Write | ||
| AO | 25 | StoppingSel | Stop mode selection (0-1) | Write | ||
| AO | 26 | FrequenceComm | Main frequency command source selection (0-6) | Write | ||
| AO | 27 | FreqUpperLim | Upper limit frequency (0.01-599) | Hz | Write | |
| AO | 28 | FreqLowerLim | Lower limit frequency (0-598.99) | Hz | Write | |
| AO | 29 | Acc Time1 | Acceleration time 1 (range not printed) | s | Write | |
| AO | 30 | Dec Time1 | Deceleration time 1 (0.1-3600) | s | Write | |
| AV | 0 | PID – P Gain | PID proportional gain (0-10) | Write | ||
| AV | 1 | PID – I Time | PID integral time (0-100) | Write | ||
| AV | 2 | PID – D Time | PID derivative time (0-10) | Write | ||
| BImin | 0 | Run/Stop | Operation status | Read | Stop / Run | |
| BI | 1 | Direction | Operation direction | Read | FWD / REV | |
| BImin | 2 | status | Inverter status | Read | OK / Fault | |
| BI | 3 | Abnormal | Error occurs | Read | Close / Open | |
| BI | 4 | DI_1 status | Terminal S1 status | Read | Close / Open | |
| BI | 5 | DI_2 status | Terminal S2 status | Read | Close / Open | |
| BI | 6 | DI_3 status | Terminal S3 status | Read | Close / Open | |
| BI | 7 | DI_4 status | Terminal S4 status | Read | Close / Open | |
| BI | 8 | DI_5 status | Terminal S5 status | Read | Close / Open | |
| BO | 0 | RY1 status | Relay output 1 status | Read | Close / Open | |
| BVmin | 0 | RUN/STOP | Run/stop command | Write | Stop / Run | |
| BV | 1 | FWD/REV | Forward/reverse command | Write | FWD / REV |
No points match these filters.
Object ID lookup: TECO-Westinghouse L510 inverter point IDs by name
AI0TM2 AINAI1TM2 AIN2AI2Error codeAI3Freq cmdAI4FrequencyAI5CurrentAI6Control ModeAI7Motor R-VoltAI8Motor R-HPAI9Motor R-RPMAI10Motor R-HzAI11CarrierFreqAI12Comm StationAI13BaudRateAI14BacnetSelAI15DevInstanceAO0Set frequencyAO1TB2 AO1AO3Motor R-AmpAO4PwrL SelAO5RestartSelAO6RestartDelayAO7FreqCommand1AO8FreqCommand2AO9FreqCommand3AO10FreqCommand4AO11FreqCommand5AO12FreqCommand6AO13FreqCommand7AO14FreqCommand8AO23RunModeAO24ReverseOperAO25StoppingSelAO26FrequenceCommAO27FreqUpperLimAO28FreqLowerLimAO29Acc Time1AO30Dec Time1AV0PID – P GainAV1PID – I TimeAV2PID – D TimeBI0Run/StopBI1DirectionBI2statusBI3AbnormalBI4DI_1 statusBI5DI_2 statusBI6DI_3 statusBI7DI_4 statusBI8DI_5 statusBO0RY1 statusBV0RUN/STOPBV1FWD/REV
Integration notes
- Ranges printed in the object tables are given in brackets in each description.
- Binary state text is given as printed (for example Close / Open); the tables do not say which value is 0 and which is 1.
- The device object prints object name and vendor name 'TECO L510', vendor ID 461, Max_Master 127, Max_Info_Frames 1.
- Supported services listed: ReadProperty, WriteProperty and Who-Is.
- AO 2 and AO 15-22 do not exist on the L510 (gaps in the printed table).
Check it against the live device. A points list tells you what the controller can expose; the unit in front of you may differ by firmware or installed options. This list is provided as-is for reference only and may contain mistakes — confirming it before you write, map or commission anything is up to you (terms). Easy BACnet scans a network for BACnet IP devices from an Android phone, reads every object on the L510 inverter (built-in BACnet MS/TP) and exports what it actually has to Excel — free. New to BACnet? Start with what a BACnet points list is and what the object types mean.
Questions about the TECO-Westinghouse L510 inverter (built-in BACnet MS/TP)
How many BACnet points does the TECO-Westinghouse L510 inverter (built-in BACnet MS/TP) have?
This list has 53 BACnet objects: 16 analog inputs, 22 analog outputs, 3 analog values, 9 binary inputs, 1 binary output, 2 binary values. The exact set on a given unit depends on its firmware, installed options and configuration.
Which TECO-Westinghouse L510 inverter (built-in BACnet MS/TP) BACnet points are writable?
23 of the 53 objects accept a write. Points marked Command have a priority array: a write holds until it is released, so release it back to automatic when you are done.
Where is the official TECO-Westinghouse L510 inverter (built-in BACnet MS/TP) BACnet documentation?
The source is L510 Communication Addendum (Modbus RTU/ASCII, BACnet, Metasys N2, Profibus) (TECO-L510-AC001), revision Ver01 2015-06, published free by TECO-Westinghouse at https://www.tecowestinghouse.com/PDF/L510_comm_addendum.pdf.
What are the minimum BACnet points to integrate the TECO-Westinghouse L510 inverter (built-in BACnet MS/TP)?
Start with BV 0 RUN/STOP (Run/stop command); AO 0 Set frequency (Frequency command, Hz); BI 0 Run/Stop (Running status); AI 4 Frequency (Output frequency, Hz); AI 5 Current (Output current, A); BI 2 status (Drive fault (OK / Fault)); AI 2 Error code (Latest fault code).
How do I enable BMS control of the TECO-Westinghouse L510 inverter (built-in BACnet MS/TP)?
Set the main run command source (AO 23) and main frequency command source (AO 26) to the communication option; the addendum does not print the setting values for the L510.
How do I check these points on the real L510 inverter (built-in BACnet MS/TP)?
Scan the network with a BACnet IP browser such as Easy BACnet, open the device and compare its object list with this table. Anything missing is usually an option that isn't installed or a point that is disabled in the controller's configuration.
More TECO-Westinghouse BACnet points lists
Source: L510 Communication Addendum (Modbus RTU/ASCII, BACnet, Metasys N2, Profibus) · TECO-L510-AC001 · rev. Ver01 2015-06. Object names, instances and units are reproduced as published; descriptions are our own.