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Variable frequency drive (HVAC) · BACnet points list
Danfoss VLT HVAC Drive FC 102 with BACnet/IP MCA 125 BACnet points list
Updated 28 October 2026
Short answer
The MCA 125 is a plug-in option that puts a VLT HVAC Drive FC 102 on BACnet IP. It publishes the drive's I/O, speed, power, alarm words and control bits as fixed objects, plus 30 user-mappable custom AV objects (AV:102 to AV:131) set in parameter 8-77. Many objects only respond when the matching I/O option (MCB 101/109/113/114/115) or a CBM license is present.
This page lists 250 BACnet objects for the Danfoss VLT HVAC Drive FC 102 with BACnet/IP MCA 125 — 132 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Danfoss’s own free documentation, linked below.
- Manufacturer
- Danfoss
- Model
- VLT HVAC Drive FC 102 with BACnet/IP MCA 125
- Equipment
- Variable frequency drive (HVAC)
- Equipment type
- VFDs & pumps
- BACnet objects
- 250 (132 writable)
- Transport
- BACnet IP
- Firmware
- FC 102 software 9.7x; MCA 125 software 3.05 (custom objects need 3.05 or later)
- Default device instance
- 1
- Also known as
- FC 102, FC102, VLT HVAC Drive, MCA 125, MCA125, 134B1586, VLT BACnet/IP
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BMS integration notes: Danfoss VLT HVAC Drive FC 102 with BACnet/IP MCA 125
Integration in brief
Give the drive a unique instance in 8-70 and an IP address in 12-0*, then write BV:1 RUN/STOP command and AV:1 Input reference 1 (%). Read BV:4 RUN/STOP monitor, BV:5 OK/FAULT monitor and AV:0/AV:5/AV:6 for speed, current and power, and use BV:3 to reset trips. Set 8-03/8-04 so the drive goes to a known state if the BMS stops writing.
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 1 | RUN/STOP command | Start/stop from the BMS | Command |
| AV 1 | Input reference 1 | Speed reference in %; writes also restart the 8-03 timeout | Command |
| BV 3 | Fault reset command | Reset a tripped drive | Write |
| BV 4 | RUN/STOP monitor | Running status | Read |
| BV 6 | HAND/AUTO reference | Shows if the drive is in Hand | Read |
| AV 0 | Speed act value | Actual speed feedback | Read |
| AV 5 | Motor current | Motor amps | Read |
| AV 6 | Power | Drive power in kW | Read |
| BV 5 | OK/FAULT monitor | Any active drive fault | Read |
| AV 61 | Alarm word 1 | Alarm detail for troubleshooting | Read |
Heartbeat & communication loss
Parameter 8-03 Control Timeout Time (0.5-18000 s, factory 60.0 s) restarts on every write to any AO, AV 1/2/31, BV 1/2/25/26/27 or MSV 1. If the BMS stops writing for longer than that, the drive raises alarm 17 Ctrl.word TO and does whatever 8-04 Control Timeout Function selects (factory Off; options include stop and trip or max speed). 8-05 End-of-Timeout Function (factory Resume setup) sets what happens when writes resume. Danfoss suggests about 3 writes per timeout window.
Sensors & values from the BMS
The BMS can write the PID feedback to AV:31 Bus feedback 1 (parameter 8-94) and the PID setpoint to AV:30 Setpoint 1 (parameter 20-21). Writing AV:31 also restarts the control timeout.
Network setup
- Device instance is parameter 8-70 (factory 1, range 0-4194302); the MCA 125 DIP switches override it unless they are all On or all Off.
- IP address: 12-00 selects Manual, DHCP or BOOTP; manual addresses go in 12-01 to 12-03 and need a power cycle.
- BACnet UDP port is 12-72 (factory 47808).
- Foreign-device registration: BBMD address 12-75 (0.0.0.0 disables), port 12-76, re-register interval 12-77.
- 8-74 sends I-Am at power-up only (factory) or about once a minute; 8-75 holds the reinitialize password (default admin).
Watch out for
- The MCA 125 shares the 8-7* BACnet parameters with the built-in MS/TP port, so connect the drive to only one BACnet network.
- The guide does not say which drive parameters (control site, control word source, reference source) must be set for bus control; check the drive programming guide.
- Many objects need an option card (MCB 101/109/113/114/115, MCO) or a CBM license and are dead without it.
- AV:102-AV:131 are blank until parameter 8-77 maps a drive parameter; unmapped ones are out of service or 'Not Configured'.
- Warning 34 Fieldbus fault is suppressed for 60 s after power-up; 12-78 can flag a duplicate device instance.
- The timeout trigger table also lists AV 36 and AV 41, which do not appear in the object tables.
Danfoss VLT HVAC Drive FC 102 with BACnet/IP MCA 125 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 | Analog input 53 | Maps to drive parameter 1662 | % | Read | |
| AI | 1 | Analog input 54 | Maps to drive parameter 1664 | % | Read | |
| AI | 2 | Analog in X30/11 | Maps to drive parameter 1675; needs MCB 101 | % | Read | |
| AI | 3 | Analog in X30/12 | Maps to drive parameter 1676; needs MCB 101 | % | Read | |
| AI | 4 | Analog in X42/1 | Maps to drive parameter 1830; needs MCB 109 | V | Read | |
| AI | 5 | Analog in X42/3 | Maps to drive parameter 1831; needs MCB 109 | V | Read | |
| AI | 6 | Analog in X42/5 | Maps to drive parameter 1832; needs MCB 109 | V | Read | |
| AI | 7 | Analog input X48/2 | Maps to drive parameter 1836; needs MCB 114 | % | Read | |
| AI | 8 | Analog input X48/4 | Maps to drive parameter 1837; needs MCB 114 | °C | Read | |
| AI | 9 | Analog input X48/7 | Maps to drive parameter 1838; needs MCB 114 | °C | Read | |
| AI | 10 | Analog input X48/10 | Maps to drive parameter 1839; needs MCB 114 | °C | Read | |
| AI | 11 | Analog input X49/1 | Maps to drive parameter 1840; needs MCB 115 | V/A/T | Read | |
| AI | 12 | Analog input X49/3 | Maps to drive parameter 1841; needs MCB 115 | V/A/T | Read | |
| AI | 13 | Analog input X49/5 | Maps to drive parameter 1842; needs MCB 115 | V/A/T | Read | |
| AI | 14 | Pressure sensor 1 | Maps to drive parameter 3126 | Pascal | Read | |
| AI | 15 | Pressure sensor 2 | Maps to drive parameter 3127 | Pascal | Read | |
| AI | 16 | Pressure sensor 3 | Maps to drive parameter 3128 | Pascal | Read | |
| AI | 17 | Pressure sensor 4 | Maps to drive parameter 3129 | Pascal | Read | |
| AO | 0 | Terminal 42 output bus control | Maps to drive parameter 653 | % | Command | |
| AO | 1 | Pulse out #27 bus control | Maps to drive parameter 593 | % | Command | |
| AO | 2 | Pulse out #29 bus control | Maps to drive parameter 595 | % | Command | |
| AO | 3 | Terminal X30/8 output bus control | Maps to drive parameter 663; needs MCB 101 | % | Command | |
| AO | 4 | Analog output X42/7 | Maps to drive parameter 2643; needs MCB 109 | V | Command | |
| AO | 5 | Analog output X42/9 | Maps to drive parameter 2653; needs MCB 109 | V | Command | |
| AO | 6 | Analog output X42/11 | Maps to drive parameter 2663; needs MCB 109 | V | Command | |
| AO | 7 | Analog output X49/7 | Maps to drive parameter 3644; needs MCB 115 | V | Command | |
| AO | 8 | Analog output X49/9 | Maps to drive parameter 3654; needs MCB 115 | V | Command | |
| AO | 9 | Analog output X49/11 | Maps to drive parameter 3664; needs MCB 115 | V | Command | |
| AO | 10 | Analog output X45/1 | Maps to drive parameter 1678; needs MCB 113 | V | Read | |
| AO | 11 | Analog output X45/3 | Maps to drive parameter 1679; needs MCB 113 | V | Read | |
| AVmin | 0 | Speed act value | Maps to drive parameter 1682 | % | Read | |
| AVmin | 1 | Input reference 1 | Maps to drive parameter 1682 | % | Command | |
| AV | 2 | Input reference 2 | Maps to drive parameter 1682 | % | Command | |
| AV | 3 | Output speed | % | Read | ||
| AV | 4 | PID feedback | % | Read | ||
| AVmin | 5 | Motor current | Maps to drive parameter 1614 | Amps | Read | |
| AVmin | 6 | Power | Maps to drive parameter 1610 | KW | Read | |
| AV | 15 | Motor thermal | Maps to drive parameter 1618 | % | Read | |
| AV | 21 | Operating hours | Maps to drive parameter 1500 | Hours | Read | |
| AV | 22 | Running hours | Maps to drive parameter 1501 | Hours | Read | |
| AV | 23 | kWh counter | Maps to drive parameter 1502 | kWh | Read | |
| AV | 24 | Motor voltage | Maps to drive parameter 1612 | V | Read | |
| AV | 25 | Frequency | Maps to drive parameter 1613 | Hz | Read | |
| AV | 26 | Torque | Maps to drive parameter 1622 | % | Read | |
| AV | 27 | DC link voltage | Maps to drive parameter 1630 | V | Read | |
| AV | 28 | Heatsink temp. | Maps to drive parameter 1634 | °C | Read | |
| AV | 29 | Inverter thermal | Maps to drive parameter 1635 | % | Read | |
| AV | 30 | Setpoint 1 | Maps to drive parameter 2021 | % | Write | |
| AV | 31 | Bus feedback 1 | Maps to drive parameter 894 | % | Write | |
| AV | 58 | Sensorless readout | Maps to drive parameter 1850 | Read | ||
| AV | 59 | PID output | Maps to drive parameter 1658 | % | Read | |
| AV | 60 | PID setpoint | Maps to drive parameter 1659 | Same as feedback unit | Read | |
| AVmin | 61 | Alarm word 1 | Maps to drive parameter 1690 | Read | ||
| AV | 62 | Alarm word 2 | Maps to drive parameter 1691 | Read | ||
| AV | 63 | Alarm word 3 | Maps to drive parameter 1697 | Read | ||
| AV | 65 | External reference | Maps to drive parameter 1650 | Read | ||
| AV | 66 | Warning word 1 | Maps to drive parameter 1692 | Read | ||
| AV | 67 | Warning word 2 | Maps to drive parameter 1693 | Read | ||
| AV | 68 | Warning word 3 | Maps to drive parameter 1698 | Read | ||
| AV | 70 | Feedback [unit] | Maps to drive parameter 1652 | Same as feedback unit | Read | |
| AV | 71 | AirPressure To Air Flow 2 | Maps to drive parameter 1857 | M2/H | Read | |
| AV | 74 | Ext. status word | Maps to drive parameter 1694 | Read | ||
| AV | 75 | Ext. status word 2 | Maps to drive parameter 1695 | Read | ||
| AV | 80 | Below level threshold [0] | Maps to drive parameter 3121[0] | Pascal | Write | |
| AV | 81 | Below level threshold [1] | Maps to drive parameter 3121[1] | Pascal | Write | |
| AV | 82 | Below level threshold [2] | Maps to drive parameter 3121[2] | Pascal | Write | |
| AV | 83 | Below level threshold [3] | Maps to drive parameter 3121[3] | Pascal | Write | |
| AV | 84 | Above level threshold [0] | Maps to drive parameter 3122[0] | Pascal | Write | |
| AV | 85 | Above level threshold [1] | Maps to drive parameter 3122[1] | Pascal | Write | |
| AV | 86 | Above level threshold [2] | Maps to drive parameter 3122[2] | Pascal | Write | |
| AV | 87 | Above level threshold [3] | Maps to drive parameter 3122[3] | Pascal | Write | |
| AV | 88 | On delay time [0] | Maps to drive parameter 3123[0] | Sec. | Write | |
| AV | 89 | On delay time [1] | Maps to drive parameter 3123[1] | Sec. | Write | |
| AV | 90 | On delay time [2] | Maps to drive parameter 3123[2] | Sec. | Write | |
| AV | 91 | On delay time [3] | Maps to drive parameter 3123[3] | Sec. | Write | |
| AV | 92 | Reset delay time [0] | Maps to drive parameter 3124[0] | Sec. | Write | |
| AV | 93 | Reset delay time [1] | Maps to drive parameter 3124[1] | Sec. | Write | |
| AV | 94 | Reset delay Time [2] | Maps to drive parameter 3124[2] | Sec. | Write | |
| AV | 95 | Reset delay time [3] | Maps to drive parameter 3124[3] | Sec. | Write | |
| AV | 96 | CBM Stator [%] | Maps to drive parameter 4590; needs CBM license | % | Read | |
| AV | 97 | CBM Load [%] | Maps to drive parameter 4591; needs CBM license | % | Read | |
| AV | 98 | CBM Sensor 1 [%] | Maps to drive parameter 4592; needs CBM license | % | Read | |
| AV | 99 | CBM Sensor 2 [%] | Maps to drive parameter 4594; needs CBM license | % | Read | |
| AV | 100 | CBM Sensor 3 [%] | Maps to drive parameter 4596; needs CBM license | % | Read | |
| AV | 101 | CBM Sensor 4 [%] | Maps to drive parameter 4598; needs CBM license | % | Read | |
| AV | 102 | Custom object | Maps to drive parameter 877[0] | User defined | Write | |
| AV | 103 | Custom object | Maps to drive parameter 877[1] | User defined | Write | |
| AV | 104 | Custom object | Maps to drive parameter 877[2] | User defined | Write | |
| AV | 105 | Custom object | Maps to drive parameter 877[3] | User defined | Write | |
| AV | 106 | Custom object | Maps to drive parameter 877[4] | User defined | Write | |
| AV | 107 | Custom object | Maps to drive parameter 877[5] | User defined | Write | |
| AV | 108 | Custom object | Maps to drive parameter 877[6] | User defined | Write | |
| AV | 109 | Custom object | Maps to drive parameter 877[7] | User defined | Write | |
| AV | 110 | Custom object | Maps to drive parameter 877[8] | User defined | Write | |
| AV | 111 | Custom object | Maps to drive parameter 877[9] | User defined | Write | |
| AV | 112 | Custom object | Maps to drive parameter 877[10] | User defined | Write | |
| AV | 113 | Custom object | Maps to drive parameter 877[11] | User defined | Write | |
| AV | 114 | Custom object | Maps to drive parameter 877[12] | User defined | Write | |
| AV | 115 | Custom object | Maps to drive parameter 877[13] | User defined | Write | |
| AV | 116 | Custom object | Maps to drive parameter 877[14] | User defined | Write | |
| AV | 117 | Custom object | Maps to drive parameter 877[15] | User defined | Write | |
| AV | 118 | Custom object | Maps to drive parameter 877[16] | User defined | Write | |
| AV | 119 | Custom object | Maps to drive parameter 877[17] | User defined | Write | |
| AV | 120 | Custom object | Maps to drive parameter 877[18] | User defined | Write | |
| AV | 121 | Custom object | Maps to drive parameter 877[19] | User defined | Write | |
| AV | 122 | Custom object | Maps to drive parameter 877[20] | User defined | Write | |
| AV | 123 | Custom object | Maps to drive parameter 877[21] | User defined | Write | |
| AV | 124 | Custom object | Maps to drive parameter 877[22] | User defined | Write | |
| AV | 125 | Custom object | Maps to drive parameter 877[23] | User defined | Write | |
| AV | 126 | Custom object | Maps to drive parameter 877[24] | User defined | Write | |
| AV | 127 | Custom object | Maps to drive parameter 877[25] | User defined | Write | |
| AV | 128 | Custom object | Maps to drive parameter 877[26] | User defined | Write | |
| AV | 129 | Custom object | Maps to drive parameter 877[27] | User defined | Write | |
| AV | 130 | Custom object | Maps to drive parameter 877[28] | User defined | Write | |
| AV | 131 | Custom object | Maps to drive parameter 877[29] | User defined | Write | |
| AV | 132 | Freeze fault log for download | Write | |||
| AV | 133 | Amount of faults | Read | |||
| AV | 134 | Fault index | Write | |||
| AV | 135 | Fault number | Maps to drive parameter 4330/1530 | Read | ||
| AV | 136 | Fault subcode | Maps to drive parameter 4331/1531 | Read | ||
| AV | 137 | Fault time | Maps to drive parameter 4332/1532 | Read | ||
| AV | 138 | Fault date | Maps to drive parameter 4333/1533 | Read | ||
| AV | 142 | Fault speed | Maps to drive parameter 4338/1538 | Read | ||
| AV | 143 | Fault duration | Maps to drive parameter 4339 | Read | ||
| AV | 144 | Fault ext. ref | Maps to drive parameter 4340/4040 | Read | ||
| AV | 145 | Fault frequency | Maps to drive parameter 4341/4041 | Read | ||
| AV | 146 | Fault current | Maps to drive parameter 4342/4042 | Read | ||
| AV | 147 | Fault voltage | Maps to drive parameter 4343/4043 | Read | ||
| AV | 148 | Fault DC link voltage | Maps to drive parameter 4344/4044 | Read | ||
| AV | 149 | Fault control word | Maps to drive parameter 4345/4045 | Read | ||
| AV | 150 | Fault status word | Maps to drive parameter 4346/4046 | Read | ||
| AV | 151 | Fault torque | Maps to drive parameter 4347/4047 | Read | ||
| AV | 152 | Fault CBM value | Maps to drive parameter 4348/4048 | Read | ||
| AV | 153 | Fault CBM threshold | Maps to drive parameter 4349/4049 | Read | ||
| BI | 0 | Digital input term 33 | Maps to drive parameter 1660, bit 0 | Read | On/Off | |
| BI | 1 | Digital input term 32 | Maps to drive parameter 1660, bit 1 | Read | On/Off | |
| BI | 2 | Digital input term 29 | Maps to drive parameter 1660, bit 2 | Read | On/Off | |
| BI | 3 | Digital input term 27 | Maps to drive parameter 1660, bit 3 | Read | On/Off | |
| BI | 4 | Digital input term 19 | Maps to drive parameter 1660, bit 4 | Read | On/Off | |
| BI | 5 | Digital input term 18 | Maps to drive parameter 1660, bit 5 | Read | On/Off | |
| BI | 6 | Digital input term 37 | Maps to drive parameter 1660, bit 6 | Read | On/Off | |
| BI | 7 | Digital input GPIO term X30/4 | Maps to drive parameter 1660, bit 7; needs MCB 101 | Read | On/Off | |
| BI | 8 | Digital input GPIO term X30/3 | Maps to drive parameter 1660, bit 8; needs MCB 101 | Read | On/Off | |
| BI | 9 | Digital input GPIO term X30/2 | Maps to drive parameter 1660, bit 9; needs MCB 101 | Read | On/Off | |
| BI | 10 | Digital input ext. relay card X46/13 | Maps to drive parameter 1660, bit 10; needs MCB 113 | Read | On/Off | |
| BI | 11 | Digital input ext. relay card X46/11 | Maps to drive parameter 1660, bit 11; needs MCB 113 | Read | On/Off | |
| BI | 12 | Digital input ext. relay card X46/09 | Maps to drive parameter 1660, bit 12; needs MCB 113 | Read | On/Off | |
| BI | 13 | Digital input ext. relay card X46/07 | Maps to drive parameter 1660, bit 13; needs MCB 113 | Read | On/Off | |
| BI | 14 | Digital input ext. relay card X46/05 | Maps to drive parameter 1660, bit 14; needs MCB 113 | Read | On/Off | |
| BI | 15 | Digital input ext. relay card X46/03 | Maps to drive parameter 1660, bit 15; needs MCB 113 | Read | On/Off | |
| BI | 16 | Digital input ext. relay card X46/01 | Maps to drive parameter 1660, bit 16; needs MCB 113 | Read | On/Off | |
| BO | 0 | Digital output term 27 | Maps to drive parameter 5-90, bit 0 | Command | On/Off | |
| BO | 1 | Digital output term 29 | Maps to drive parameter 5-90, bit 1 | Command | On/Off | |
| BO | 2 | GPIO output term X30/6 | Maps to drive parameter 5-90, bit 2; needs MCB 101 | Command | On/Off | |
| BO | 3 | GPIO output term X30/7 | Maps to drive parameter 5-90, bit 3; needs MCB 101 | Command | On/Off | |
| BO | 4 | Relay 1 | Maps to drive parameter 5-90, bit 4 | Command | On/Off | |
| BO | 5 | Relay 2 | Maps to drive parameter 5-90, bit 5 | Command | On/Off | |
| BO | 6 | Option B relay 1 output | Maps to drive parameter 5-90, bit 6; needs MCB 105 | Command | On/Off | |
| BO | 7 | Option B relay 2 output | Maps to drive parameter 5-90, bit 7; needs MCB 105 | Command | On/Off | |
| BO | 8 | Option B relay 3 output | Maps to drive parameter 5-90, bit 8; needs MCB 105 | Command | On/Off | |
| BO | 9 | Digital input programmable op. term X49/7 | Maps to drive parameter 5-90, bit 24; needs MCB 115 | Command | On/Off | |
| BO | 10 | Digital input programmable op. term X49/9 | Maps to drive parameter 5-90, bit 25; needs MCB 115 | Command | On/Off | |
| BO | 11 | Digital input programmable op. term X49/11 | Maps to drive parameter 5-90, bit 26; needs MCB 115 | Command | On/Off | |
| BO | 12 | Extended relay card 1 output | Maps to drive parameter 16-71, bit 4; needs MCB 113 | Command | On/Off | |
| BO | 13 | Extended relay card 2 output | Maps to drive parameter 16-71, bit 3; needs MCB 113 | Command | On/Off | |
| BO | 14 | Extended relay card 3 output | Maps to drive parameter 16-71, bit 2; needs MCB 113 | Command | On/Off | |
| BO | 15 | Extended relay card 4 output | Maps to drive parameter 16-71, bit 7; needs MCB 113 | Command | On/Off | |
| BVmin | 1 | RUN/STOP command | Maps to drive parameter CTW=047c + bit 15 | Command | ||
| BV | 2 | REF 1/REF 2 select | Maps to drive parameter Note 1 | Command | ||
| BVmin | 3 | Fault reset command | Maps to drive parameter CTW bit 7 | Write | ||
| BVmin | 4 | RUN/STOP monitor | Maps to drive parameter STW bit 1 | Read | ||
| BVmin | 5 | OK/FAULT monitor | Maps to drive parameter STW bits 3, 6, and 7 | Read | ||
| BVmin | 6 | HAND/AUTO reference | Maps to drive parameter 16-95 bit 1 | Read | ||
| BV | 21 | Warning | Maps to drive parameter STW bit 7 | Read | ||
| BV | 22 | Trip | Maps to drive parameter STW bit 3 | Read | ||
| BV | 23 | Triplock | Maps to drive parameter STW bit 6 | Read | ||
| BV | 24 | Coasting | Maps to drive parameter CTW bit 3 | Command | ||
| BV | 25 | CW/CCW | Maps to drive parameter CTW bit 15 | Command | ||
| BV | 26 | Jog | Maps to drive parameter CTW bit 8 | Command | ||
| BV | 27 | Reset | Maps to drive parameter CTW bit 7 | Command | ||
| BV | 28 | Reset KWh counter | Maps to drive parameter 1506 | Command | ||
| BV | 29 | Reset running hours counter | Maps to drive parameter 1507 | Write | ||
| BV | 30 | Reverse | Maps to drive parameter CTW bit 15 | Write | ||
| BV | 31 | Speed = reference | Maps to drive parameter STW bit 8 | Read | ||
| BV | 32 | Bus control | Maps to drive parameter STW bit 9 | Read | ||
| BV | 33 | Running | Maps to drive parameter STW bit 11 | Read | ||
| BV | 34 | Ramp 1/Ramp 2 | Maps to drive parameter CTW bit 9 | Command | ||
| BV | 35 | ECB test mode | Maps to drive parameter 3110 bit 0; needs MCO 104 | Read | ||
| BV | 36 | ECB drive mode | Maps to drive parameter 3110 bit 1; needs MCO 104 | Read | ||
| BV | 37 | ECB auto. bypass enable | Maps to drive parameter 3110 bit 2; needs MCO 104 | Read | ||
| BV | 38 | ECB bypass mode | Maps to drive parameter 3110 bit 3; needs MCO 104 | Read | ||
| BV | 54 | CBM motor overload warning | Maps to drive parameter 1698 bits 18, 19, 28, 29, 30, or | Read | ||
| BV | 55 | CBM motor overload alarm | Maps to drive parameter 1697 bits 25, 30, or 31; needs CBM | Read | ||
| BV | 56 | CBM sensor warning | Maps to drive parameter 1698 bits 20 to 27; needs CBM license | Read | ||
| BV | 57 | CBM sensor alarm | Maps to drive parameter 1697 bits 26 to 29; needs CBM license | Read | ||
| MV | 0 | Smart logic controller state | Maps to drive parameter 1638 | Read | ||
| MV | 1 | Active setup | Maps to drive parameter CTW bit 13 and 14 | Command | ||
| MV | 3 | Configuration mode | Maps to drive parameter 100 | Write | ||
| MV | 4 | Pressure sensor 1 cmp states | Maps to drive parameter 3130 | Read | ||
| MV | 5 | Pressure sensor 2 cmp states | Maps to drive parameter 3130 | Read | ||
| MV | 6 | Pressure sensor 3 cmp states | Maps to drive parameter 3130 | Read | ||
| MV | 7 | Pressure sensor 4 cmp states | Maps to drive parameter 3130 | Read | ||
| MV | 8 | CBM stator winding | Maps to drive parameter 45-01 [0]; needs CBM license | Read | ||
| MV | 9 | CBM load envelope | Maps to drive parameter 45-01 [1]; needs CBM license | Read | ||
| MV | 10 | CBM sensor 1 | Maps to drive parameter 45-01 [2]; needs CBM license | Read | ||
| MV | 11 | CBM sensor 2 | Maps to drive parameter 45-01 [3]; needs CBM license | Read | ||
| MV | 12 | CBM sensor 3 | Maps to drive parameter 45-01 [4]; needs CBM license | Read | ||
| MV | 13 | CBM sensor 4 | Maps to drive parameter 45-01 [5]; needs CBM license | Read | ||
| NC | 0 | Warning notifier | Provided by the MCA 125 option itself | Write | ||
| NC | 1 | Trip notifier | Provided by the MCA 125 option itself | Write | ||
| NC | 3 | Triplock notifier | Provided by the MCA 125 option itself | Write | ||
| NC | 100 | NC 100 | Provided by the MCA 125 option itself | Write | ||
| NC | 200 | NC 200 | Provided by the MCA 125 option itself | Write | ||
| NC | 300 | NC 300 | Provided by the MCA 125 option itself | Write | ||
| NC | 400 | NC 400 | Provided by the MCA 125 option itself | Write | ||
| TL | 0 | Trend log 0 | Write | |||
| TL | 1 | Trend log 1 | Write | |||
| TL | 2 | Trend log 2 | Write | |||
| TL | 3 | Trend log 3 | Write | |||
| TL | 4 | Trend log 4 | Write | |||
| TL | 5 | Trend log 5 | Write | |||
| TL | 6 | Trend log 6 | Write | |||
| LO | 0 | Drive close loop | Maps to drive parameter 2093, 2094, 2095 | Write | ||
| Other | 0 | Event enrollment 0 | Provided by the MCA 125 option itself | Write | ||
| Other | 1 | Event enrollment 1 | Provided by the MCA 125 option itself | Write | ||
| Other | 2 | Event enrollment 2 | Provided by the MCA 125 option itself | Write | ||
| Other | 3 | Event enrollment 3 | Provided by the MCA 125 option itself | Write | ||
| Other | 4 | Event enrollment 4 | Provided by the MCA 125 option itself | Write | ||
| Other | 5 | Event enrollment 5 | Provided by the MCA 125 option itself | Write | ||
| Other | 6 | Event enrollment 6 | Provided by the MCA 125 option itself | Write | ||
| Other | 7 | Event enrollment 7 | Provided by the MCA 125 option itself | Write | ||
| Other | 8 | Event enrollment 8 | Provided by the MCA 125 option itself | Write | ||
| Other | 9 | Event enrollment 9 | Provided by the MCA 125 option itself | Write | ||
| Other | 10 | Event enrollment 10 | Provided by the MCA 125 option itself | Write | ||
| Other | 11 | Event enrollment 11 | Provided by the MCA 125 option itself | Write | ||
| Other | 12 | Event enrollment 12 | Provided by the MCA 125 option itself | Write | ||
| Other | 13 | Event enrollment 13 | Provided by the MCA 125 option itself | Write | ||
| SCH | 0 | Drive schedule 0 | Provided by the MCA 125 option itself | Write | ||
| SCH | 1 | Drive schedule 1 | Provided by the MCA 125 option itself | Write | ||
| SCH | 2 | Drive schedule 2 | Provided by the MCA 125 option itself | Write | ||
| SCH | 3 | Drive schedule 3 | Provided by the MCA 125 option itself | Write | ||
| SCH | 4 | Drive schedule 4 | Provided by the MCA 125 option itself | Write | ||
| SCH | 5 | Drive schedule 5 | Provided by the MCA 125 option itself | Write | ||
| CAL | 0 | Exception calendar | Provided by the MCA 125 option itself | Write | ||
| CAL | 1 | Exception calendar | Provided by the MCA 125 option itself | Write | ||
| CAL | 2 | Exception calendar | Provided by the MCA 125 option itself | Write | ||
| CAL | 3 | Exception calendar | Provided by the MCA 125 option itself | Write | ||
| CAL | 4 | Exception calendar | Provided by the MCA 125 option itself | Write | ||
| CAL | 5 | Exception calendar | Provided by the MCA 125 option itself | Write | ||
| Other | 0 | Event log | Provided by the MCA 125 option itself | Read |
No points match these filters.
Integration notes
- Device instance comes from parameter 8-70 (default 1) unless the MCA 125 DIP switches set it.
- Points marked 'needs MCB ...' only work when that I/O option is installed.
- CBM (condition-based monitoring) objects need a CBM license in the drive.
- AV:102-AV:131 are custom objects; their names and units follow the drive parameters mapped in 8-77.
- This file lists objects the guide marks for FC 102 or for both drive series; FC 202-only objects are left out.
- Write Control Timeout (8-03/8-04) logic is triggered by writes to the run/reference objects.
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. Easy BACnet scans a network for BACnet IP devices from an Android phone, reads every object on the VLT HVAC Drive FC 102 with BACnet/IP MCA 125 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 Danfoss VLT HVAC Drive FC 102 with BACnet/IP MCA 125
How many BACnet points does the Danfoss VLT HVAC Drive FC 102 with BACnet/IP MCA 125 have?
This list has 250 BACnet objects: 18 analog inputs, 12 analog outputs, 104 analog values, 17 binary inputs, 16 binary outputs, 28 binary values, 6 calendars, 1 loop, 7 notification classs, 6 schedules, 13 multi-state values, 7 trend logs, 15 others. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Danfoss VLT HVAC Drive FC 102 with BACnet/IP MCA 125 BACnet points are writable?
132 of the 250 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 Danfoss VLT HVAC Drive FC 102 with BACnet/IP MCA 125 BACnet documentation?
The source is VLT BACnet/IP MCA 125 Programming Guide (VLT HVAC Drive FC 102, VLT AQUA Drive FC 202) (AU361182716349en-000201 (130R0673)), revision 2025-12, published free by Danfoss at https://assets.danfoss.com/documents/562086/AU361182716349en-000201.pdf.
What are the minimum BACnet points to integrate the Danfoss VLT HVAC Drive FC 102 with BACnet/IP MCA 125?
Start with BV 1 RUN/STOP command (Start/stop from the BMS); AV 1 Input reference 1 (Speed reference in %; writes also restart the 8-03 timeout); BV 3 Fault reset command (Reset a tripped drive); BV 4 RUN/STOP monitor (Running status); BV 6 HAND/AUTO reference (Shows if the drive is in Hand); AV 0 Speed act value (Actual speed feedback); AV 5 Motor current (Motor amps); AV 6 Power (Drive power in kW); BV 5 OK/FAULT monitor (Any active drive fault); AV 61 Alarm word 1 (Alarm detail for troubleshooting).
Does the Danfoss VLT HVAC Drive FC 102 with BACnet/IP MCA 125 need a BACnet heartbeat or have a communication timeout?
Parameter 8-03 Control Timeout Time (0.5-18000 s, factory 60.0 s) restarts on every write to any AO, AV 1/2/31, BV 1/2/25/26/27 or MSV 1. If the BMS stops writing for longer than that, the drive raises alarm 17 Ctrl.word TO and does whatever 8-04 Control Timeout Function selects (factory Off; options include stop and trip or max speed). 8-05 End-of-Timeout Function (factory Resume setup) sets what happens when writes resume. Danfoss suggests about 3 writes per timeout window.
Can the BMS supply sensor values to the Danfoss VLT HVAC Drive FC 102 with BACnet/IP MCA 125?
The BMS can write the PID feedback to AV:31 Bus feedback 1 (parameter 8-94) and the PID setpoint to AV:30 Setpoint 1 (parameter 20-21). Writing AV:31 also restarts the control timeout.
How do I check these points on the real VLT HVAC Drive FC 102 with BACnet/IP MCA 125?
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 Danfoss BACnet points lists
- Thermal energy meter (BACnet MS/TP plug-in module)
Danfoss SonoMeter 40 BACnet MS/TP module
Danfoss SonoMeter 40 ultrasonic heat/cooling energy meters fitted with the BACnet MS/TP module.
Also known as: SonoMeter 40, SonoMeter, Sonometer 40 BACnet, Danfoss BACnet MS/TP base module, AQ404134831215 - Variable frequency drive (water / pump)
Danfoss VLT AQUA Drive FC 202 with BACnet/IP MCA 125
Danfoss VLT AQUA Drive FC 202 fitted with the MCA 125 BACnet/IP option card.
Also known as: FC 202, FC202, VLT AQUA Drive, MCA 125, MCA125, 134B1586, VLT BACnet/IP
Source: VLT BACnet/IP MCA 125 Programming Guide (VLT HVAC Drive FC 102, VLT AQUA Drive FC 202) · AU361182716349en-000201 (130R0673) · rev. 2025-12. Object names, instances and units are reproduced as published; descriptions are our own.