{
 "manufacturer": "WEG",
 "manufacturer_slug": "weg",
 "model": "CFW503 (BACnet MS/TP)",
 "model_slug": "cfw503",
 "aliases": [
  "CFW503",
  "WEG CFW503",
  "CFW503 BACnet",
  "10012735607",
  "CFW500"
 ],
 "equipment_type": "Variable frequency drive",
 "applies_to": "WEG CFW503 frequency inverters using BACnet MS/TP on the standard or plug-in RS-485 port.",
 "summary": "The CFW503 runs BACnet MS/TP on its RS-485 port and maps drive parameters to fixed objects: AVs for readings, ramps, PID values and the network speed reference, BVs for the status word (P0680) and control word (P0682), plus digital and analog I/O. A mailbox (AV 100/101, BV 100/101) reads or writes any parameter by number.",
 "bacnet_transport": [
  "BACnet MS/TP"
 ],
 "firmware": null,
 "default_device_instance": "359000 + serial address (P0308) when P0760 and P0761 are 0",
 "access_inferred": false,
 "notes": [
  "The manual's AV unit column is shifted one row from AV 6 to AV 11 (it prints °C for Output Power, h for Heatsink Temperature, kWh for Time Enabled). Units here follow the parameter: AV 6 is left blank, AV 7 °C, AV 9-10 h, AV 11 kWh.",
  "BV 1 Run Command and BV 0/3 have no state or access entry in the table; they are status-word bits and are listed here as read-only.",
  "BV 20 Remote (command) is printed with states 'Reset/Off' in the object table; the P0682 bit 4 description (0 = Local, 1 = Remote) is used here.",
  "Some digital outputs may be missing depending on the plug-in module; AO 2 drives the frequency output (FO).",
  "The table marks counters and fault/alarm codes (AV 9, 10, 12, 13) as commandable; treat them as readings.",
  "Mailbox: write the parameter number to AV 100, then 1 to BV 100 to read the value into AV 101, or set AV 101 and write 1 to BV 101 to write it."
 ],
 "source": {
  "title": "CFW503 BACnet User's Guide",
  "doc_number": "10012735607 Rev. 00",
  "revision_date": "2025-05",
  "url": "https://static.weg.net/medias/downloadcenter/hed/h7a/WEG-CFW503-manual-bacnet-communication-manual-10012735607-en.pdf"
 },
 "integration": {
  "summary": "Set P0312 to BACnet, the address in P0308 and the baud rate in P0310, then set P0220-P0228 so run/stop, direction and reference come from Serial/USB. Write BV 16 run/stop with BV 17 general enable and the speed reference to AV 17 (8192 = motor rated frequency). Read BV 8, AV 3, AV 1 and BV 15, and reset faults with BV 23.",
  "minimum_points": [
   {
    "ref": "BV 16",
    "name": "Run/Stop",
    "why": "Start/stop from the BMS"
   },
   {
    "ref": "BV 17",
    "name": "General Enable",
    "why": "General enable; must be on to run"
   },
   {
    "ref": "BV 20",
    "name": "Remote",
    "why": "Remote mode when P0220 selects Serial/USB"
   },
   {
    "ref": "AV 17",
    "name": "Serial/USB Speed Ref.",
    "why": "Speed reference, 8192 = rated frequency"
   },
   {
    "ref": "BV 23",
    "name": "Fault Reset",
    "why": "Reset a tripped drive"
   },
   {
    "ref": "BV 8",
    "name": "Running",
    "why": "Running status"
   },
   {
    "ref": "AV 3",
    "name": "Motor Frequency",
    "why": "Output frequency in Hz"
   },
   {
    "ref": "AV 1",
    "name": "Motor Current",
    "why": "Motor amps"
   },
   {
    "ref": "BV 15",
    "name": "Fault",
    "why": "Any active drive fault"
   },
   {
    "ref": "AV 13",
    "name": "Present Fault",
    "why": "Active fault number"
   }
  ],
  "enable": "Network commands only act when P0220-P0228 select Serial/USB: P0220 = 5/6 lets the control word set local/remote (BV 20), P0222 = 9 takes the reference from P0683 (AV 17), P0227 = 2 takes run/stop from the control word and P0226 = 5/6 sets direction. The drive needs both BV 17 General Enable and BV 16 Run/Stop.",
  "heartbeat": "P0314 Serial Watchdog (time limit 0-999, the manual gives no unit; 0 = off, factory 0): if no valid telegram arrives within that time the drive shows alarm A0128 (or fault F0228) and runs the P0313 action: 0 none, 1 ramp stop (factory), 2 general disable, 3 go to local, 4 local keeping commands, 5 fault. Timing starts at the first valid telegram after power-up.",
  "remote_sensors": "AV 21/AV 25 take the main and external PID automatic setpoints and AV 23/AV 27 the PID feedbacks when the drive's PID is used.",
  "setup": [
   "P0312 = 3 (BACnet-1) for the standard port, or 9 for the second port of a plug-in module; reinitialize after changing.",
   "P0308 MS/TP address 0-254 (factory 1); P0310 baud 9600, 19200 (factory) or 38400; P0311 must be 8N1.",
   "Device instance: P0760 x 10000 + P0761; with both at 0 the drive uses 359000 + P0308 (WEG vendor ID 359).",
   "P0762 max master (factory 127), P0763 max info frames (factory 1), P0764 sends I-Am at power-up only (factory) or continuously."
  ],
  "gotchas": [
   "Speed reference AV 17 is a 13-bit value, not Hz or %: 8192 = motor rated frequency (P0403); negative values reverse.",
   "Unit column in the manual is shifted for AV 6-11; see notes.",
   "Ramp times AV 14/15 and the mailbox write change drive parameters; don't write them cyclically.",
   "P0313 = 0 keeps the drive running at the last command after a comm loss."
  ]
 },
 "points": [
  {
   "type": "AI",
   "instance": 0,
   "name": "AI1 Value",
   "description": "Analog input 1 level (P018)",
   "units": "%",
   "access": "R",
   "states": ""
  },
  {
   "type": "AI",
   "instance": 1,
   "name": "AI2 Value",
   "description": "Analog input 2 level (P019)",
   "units": "%",
   "access": "R",
   "states": ""
  },
  {
   "type": "AI",
   "instance": 2,
   "name": "AI3 Value",
   "description": "Analog input 3 level (P020)",
   "units": "%",
   "access": "R",
   "states": ""
  },
  {
   "type": "AO",
   "instance": 0,
   "name": "AOx Value 1",
   "description": "Network value for an analog output (P0696)",
   "units": "",
   "access": "C",
   "states": ""
  },
  {
   "type": "AO",
   "instance": 1,
   "name": "AOx Value 2",
   "description": "Network value for an analog output (P0697)",
   "units": "",
   "access": "C",
   "states": ""
  },
  {
   "type": "AO",
   "instance": 2,
   "name": "AOx Value 3",
   "description": "Network value for an analog output (P0698)",
   "units": "",
   "access": "C",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 0,
   "name": "Motor Speed",
   "description": "Motor speed (P0002)",
   "units": "rpm",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 1,
   "name": "Motor Current",
   "description": "Motor current (P0003)",
   "units": "A",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 2,
   "name": "DC Link Voltage (Ud)",
   "description": "DC bus voltage (P0004)",
   "units": "V",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 3,
   "name": "Motor Frequency",
   "description": "Output frequency (P0005)",
   "units": "Hz",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 4,
   "name": "Motor Voltage",
   "description": "Output voltage (P0007)",
   "units": "V",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 5,
   "name": "Motor Torque",
   "description": "Motor torque (P0009)",
   "units": "%",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 6,
   "name": "Output Power",
   "description": "Output power; unit cell blank in the shifted table (P0010)",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 7,
   "name": "Heatsink Temperature",
   "description": "Heatsink temperature (P0030)",
   "units": "°C",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 9,
   "name": "Time Powered",
   "description": "Powered hours counter (P0042)",
   "units": "h",
   "access": "C",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 10,
   "name": "Time Enabled",
   "description": "Enabled hours counter (P0043)",
   "units": "h",
   "access": "C",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 11,
   "name": "kWh Output Energy",
   "description": "Energy counter (P0044)",
   "units": "kWh",
   "access": "R",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 12,
   "name": "Present Alarm",
   "description": "Active alarm number (P0048)",
   "units": "",
   "access": "C",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 13,
   "name": "Present Fault",
   "description": "Active fault number (P0049)",
   "units": "",
   "access": "C",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 14,
   "name": "Acceleration Time",
   "description": "Acceleration ramp time (P0100)",
   "units": "s",
   "access": "C",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 15,
   "name": "Deceleration Time",
   "description": "Deceleration ramp time (P0101)",
   "units": "s",
   "access": "C",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 16,
   "name": "Speed in 13 bits",
   "description": "Motor speed, 13-bit scale (8192 = rated frequency) (P0681)",
   "units": "",
   "access": "C",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 17,
   "name": "Serial/USB Speed Ref.",
   "description": "Speed reference, 13-bit scale (8192 = rated frequency) (P0683)",
   "units": "",
   "access": "C",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 18,
   "name": "SoftPLC Parameter 3",
   "description": "SoftPLC user parameter (P1012)",
   "units": "",
   "access": "C",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 19,
   "name": "SoftPLC Parameter 4",
   "description": "SoftPLC user parameter (P1013)",
   "units": "",
   "access": "C",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 20,
   "name": "SoftPLC Parameter 16",
   "description": "SoftPLC user parameter (P1025)",
   "units": "",
   "access": "C",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 21,
   "name": "Main PID Aut. Setpoint",
   "description": "Main PID automatic setpoint (P1011)",
   "units": "",
   "access": "C",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 22,
   "name": "Main PID Man. Setpoint",
   "description": "Main PID manual setpoint (P1014)",
   "units": "%",
   "access": "C",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 23,
   "name": "Main PID Feedback",
   "description": "Main PID feedback (P1015)",
   "units": "",
   "access": "C",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 24,
   "name": "Main PID Output",
   "description": "Main PID output (P1016)",
   "units": "%",
   "access": "C",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 25,
   "name": "External PID Auto Setpoint",
   "description": "External PID automatic setpoint (P1060)",
   "units": "",
   "access": "C",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 26,
   "name": "External PID Man. Setpoint",
   "description": "External PID manual setpoint (P1061)",
   "units": "%",
   "access": "C",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 27,
   "name": "External PID Feedback",
   "description": "External PID feedback (P1062)",
   "units": "",
   "access": "C",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 28,
   "name": "External PID Output",
   "description": "External PID output (P1063)",
   "units": "%",
   "access": "C",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 100,
   "name": "Mailbox: param. number",
   "description": "Parameter number for mailbox access",
   "units": "",
   "access": "W",
   "states": ""
  },
  {
   "type": "AV",
   "instance": 101,
   "name": "Mailbox: param. value",
   "description": "Value read from or to write to the parameter",
   "units": "",
   "access": "W",
   "states": ""
  },
  {
   "type": "BI",
   "instance": 0,
   "name": "DI1",
   "description": "Digital input 1 (P012 bit 0)",
   "units": "",
   "access": "R",
   "states": "0=Off, 1=On"
  },
  {
   "type": "BI",
   "instance": 1,
   "name": "DI2",
   "description": "Digital input 2 (P012 bit 1)",
   "units": "",
   "access": "R",
   "states": "0=Off, 1=On"
  },
  {
   "type": "BI",
   "instance": 2,
   "name": "DI3",
   "description": "Digital input 3 (P012 bit 2)",
   "units": "",
   "access": "R",
   "states": "0=Off, 1=On"
  },
  {
   "type": "BI",
   "instance": 3,
   "name": "DI4",
   "description": "Digital input 4 (P012 bit 3)",
   "units": "",
   "access": "R",
   "states": "0=Off, 1=On"
  },
  {
   "type": "BI",
   "instance": 4,
   "name": "DI5",
   "description": "Digital input 5 (P012 bit 4)",
   "units": "",
   "access": "R",
   "states": "0=Off, 1=On"
  },
  {
   "type": "BI",
   "instance": 5,
   "name": "DI6",
   "description": "Digital input 6 (P012 bit 5)",
   "units": "",
   "access": "R",
   "states": "0=Off, 1=On"
  },
  {
   "type": "BI",
   "instance": 6,
   "name": "DI7",
   "description": "Digital input 7 (P012 bit 6)",
   "units": "",
   "access": "R",
   "states": "0=Off, 1=On"
  },
  {
   "type": "BI",
   "instance": 7,
   "name": "DI8",
   "description": "Digital input 8 (P012 bit 7)",
   "units": "",
   "access": "R",
   "states": "0=Off, 1=On"
  },
  {
   "type": "BO",
   "instance": 0,
   "name": "DO1",
   "description": "Digital output 1 (P695 bit 0)",
   "units": "",
   "access": "C",
   "states": "0=Off, 1=On"
  },
  {
   "type": "BO",
   "instance": 1,
   "name": "DO2",
   "description": "Digital output 2 (P695 bit 1)",
   "units": "",
   "access": "C",
   "states": "0=Off, 1=On"
  },
  {
   "type": "BO",
   "instance": 2,
   "name": "DO3",
   "description": "Digital output 3 (P695 bit 2)",
   "units": "",
   "access": "C",
   "states": "0=Off, 1=On"
  },
  {
   "type": "BO",
   "instance": 3,
   "name": "DO4",
   "description": "Digital output 4 (P695 bit 3)",
   "units": "",
   "access": "C",
   "states": "0=Off, 1=On"
  },
  {
   "type": "BO",
   "instance": 4,
   "name": "DO5",
   "description": "Digital output 5 (P695 bit 4)",
   "units": "",
   "access": "C",
   "states": "0=Off, 1=On"
  },
  {
   "type": "BV",
   "instance": 0,
   "name": "Reserved",
   "description": "Status word bit, reserved (P680 bit 0)",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BV",
   "instance": 1,
   "name": "Run Command",
   "description": "Status: run command active (P680 bit 1)",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BV",
   "instance": 2,
   "name": "Fire mode",
   "description": "Status: fire mode (P680 bit 2)",
   "units": "",
   "access": "R",
   "states": "0=Off, 1=On"
  },
  {
   "type": "BV",
   "instance": 3,
   "name": "Reserved",
   "description": "Status word bit, reserved (P680 bit 3)",
   "units": "",
   "access": "R",
   "states": ""
  },
  {
   "type": "BV",
   "instance": 4,
   "name": "Quick Stop",
   "description": "Status: quick stop (P680 bit 4)",
   "units": "",
   "access": "R",
   "states": "0=Inactive, 1=Active"
  },
  {
   "type": "BV",
   "instance": 5,
   "name": "2nd Ramp",
   "description": "Status: second ramp (P680 bit 5)",
   "units": "",
   "access": "R",
   "states": "0=Off, 1=On"
  },
  {
   "type": "BV",
   "instance": 6,
   "name": "Config. Mode",
   "description": "Status: configuration mode (P680 bit 6)",
   "units": "",
   "access": "R",
   "states": "0=Normal, 1=Config"
  },
  {
   "type": "BV",
   "instance": 7,
   "name": "Alarm",
   "description": "Status: alarm active (P680 bit 7)",
   "units": "",
   "access": "R",
   "states": "0=No Alarm, 1=Alarm"
  },
  {
   "type": "BV",
   "instance": 8,
   "name": "Running",
   "description": "Status: motor running (P680 bit 8)",
   "units": "",
   "access": "R",
   "states": "0=Stopped, 1=Running"
  },
  {
   "type": "BV",
   "instance": 9,
   "name": "Enabled",
   "description": "Status: general enable (P680 bit 9)",
   "units": "",
   "access": "R",
   "states": "0=Disabled, 1=Enabled"
  },
  {
   "type": "BV",
   "instance": 10,
   "name": "Forward",
   "description": "Status: direction (P680 bit 10)",
   "units": "",
   "access": "R",
   "states": "0=Reverse, 1=Forward"
  },
  {
   "type": "BV",
   "instance": 11,
   "name": "JOG",
   "description": "Status: JOG (P680 bit 11)",
   "units": "",
   "access": "R",
   "states": "0=Off, 1=On"
  },
  {
   "type": "BV",
   "instance": 12,
   "name": "Remote",
   "description": "Status: remote or local (P680 bit 12)",
   "units": "",
   "access": "R",
   "states": "0=Local, 1=Remote"
  },
  {
   "type": "BV",
   "instance": 13,
   "name": "Undervoltage",
   "description": "Status: undervoltage (P680 bit 13)",
   "units": "",
   "access": "R",
   "states": "0=No, 1=Undervoltage"
  },
  {
   "type": "BV",
   "instance": 14,
   "name": "Automatic PID",
   "description": "Status: PID manual or auto (P680 bit 14)",
   "units": "",
   "access": "R",
   "states": "0=Auto, 1=Manual"
  },
  {
   "type": "BV",
   "instance": 15,
   "name": "Fault",
   "description": "Status: fault active (P680 bit 15)",
   "units": "",
   "access": "R",
   "states": "0=No Fault, 1=Fault"
  },
  {
   "type": "BV",
   "instance": 16,
   "name": "Run/Stop",
   "description": "Command: run/stop (P682 bit 0)",
   "units": "",
   "access": "C",
   "states": "0=Stop, 1=Run"
  },
  {
   "type": "BV",
   "instance": 17,
   "name": "General Enable",
   "description": "Command: general enable (P682 bit 1)",
   "units": "",
   "access": "C",
   "states": "0=Disable, 1=Enable"
  },
  {
   "type": "BV",
   "instance": 18,
   "name": "Run Forward",
   "description": "Command: direction (P682 bit 2)",
   "units": "",
   "access": "C",
   "states": "0=Reverse, 1=Forward"
  },
  {
   "type": "BV",
   "instance": 19,
   "name": "JOG Enable",
   "description": "Command: JOG (P682 bit 3)",
   "units": "",
   "access": "C",
   "states": "0=Off, 1=On"
  },
  {
   "type": "BV",
   "instance": 20,
   "name": "Remote",
   "description": "Command: remote/local select (P682 bit 4)",
   "units": "",
   "access": "C",
   "states": "0=Local, 1=Remote"
  },
  {
   "type": "BV",
   "instance": 21,
   "name": "2nd Ramp",
   "description": "Command: second ramp (P682 bit 5)",
   "units": "",
   "access": "C",
   "states": "0=Off, 1=On"
  },
  {
   "type": "BV",
   "instance": 22,
   "name": "Quick Stop",
   "description": "Command: quick stop (P682 bit 6)",
   "units": "",
   "access": "C",
   "states": "0=Off, 1=On"
  },
  {
   "type": "BV",
   "instance": 23,
   "name": "Fault Reset",
   "description": "Command: fault reset (P682 bit 7)",
   "units": "",
   "access": "C",
   "states": "0=Off, 1=Reset"
  },
  {
   "type": "BV",
   "instance": 29,
   "name": "Intern PID",
   "description": "Command: internal PID manual/auto (P682 bit 13)",
   "units": "",
   "access": "C",
   "states": "0=Auto, 1=Manual"
  },
  {
   "type": "BV",
   "instance": 30,
   "name": "Extern PID",
   "description": "Command: external PID manual/auto (P682 bit 14)",
   "units": "",
   "access": "C",
   "states": "0=Auto, 1=Manual"
  },
  {
   "type": "BV",
   "instance": 100,
   "name": "Mailbox: exec. read",
   "description": "Mailbox read trigger",
   "units": "",
   "access": "W",
   "states": "0=Off, 1=On"
  },
  {
   "type": "BV",
   "instance": 101,
   "name": "Mailbox: exec. write",
   "description": "Mailbox write trigger",
   "units": "",
   "access": "W",
   "states": "0=Off, 1=On"
  }
 ],
 "page": "https://easybacnet.com/bacnet-points-lists/weg/cfw503",
 "note": "Provided as-is. Point availability varies by firmware and options; verify against the live device.",
 "disclaimer": "DISCLAIMER: reference only, provided AS IS with no warranty. May contain errors or be out of date. You must verify every point against the manufacturer's current documentation and the live device before use. easybacnet.com accepts no liability for its use and is not affiliated with the manufacturer. Terms: https://easybacnet.com/terms#content"
}