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Variable frequency drive with bypass (HVAC) · BACnet points list
Yaskawa Z1000U HVAC Matrix Bypass (BACnet MS/TP) BACnet points list
Updated 6 November 2026
On the Z1000U Matrix bypass the BACnet MS/TP connection is made at the bypass controller (terminal TB3), which exposes drive and bypass data from one address. The list has the drive objects plus bypass I/O, bypass run/transfer/smoke-purge commands, HOA and contactor status and bypass fault flags.
This page lists 181 BACnet objects for the Yaskawa Z1000U HVAC Matrix Bypass (BACnet MS/TP) — 52 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Yaskawa’s own free documentation, linked below.
- Manufacturer
- Yaskawa
- Model
- Z1000U HVAC Matrix Bypass (BACnet MS/TP)
- Equipment
- Variable frequency drive with bypass (HVAC)
- Equipment type
- VFDs & pumps
- BACnet objects
- 181 (52 writable)
- Transport
- BACnet MS/TP
- Firmware
- Not stated
- Default device instance
- 1
- Also known as
- Z1000U Bypass, Z1000U Matrix Bypass, Z1D1, Z1000U HVAC MATRIX Drive Bypass, Z1000U low harmonic bypass, SIEP YAIZ1D 01
Reference only, provided as-is: verify against Yaskawa’s current documentation and the live device before use. Not official Yaskawa information. Terms of use.
BMS integration notes: Yaskawa Z1000U HVAC Matrix Bypass (BACnet MS/TP)
Wire BACnet MS/TP to TB3 on the bypass controller and set Z3-01 = 3 (BACnet), Z3-02 node, Z3-03 baud and the device instance in Z3-08/Z3-09, then cycle power. Set Z1-07 = 2 and Z1-08 = 2 so the network supplies the speed reference and run command, put the HOA in AUTO, then write BV58 and AV2. Read BV89 and BV90, and choose the comm-loss action in Z3-05/Z3-06.
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 58 | BYP Run Fwd CMD | Start/stop from the BMS (bypass) | Command |
| AV 2 | Frequency Cmd | Frequency reference, units per o1-03 | Command |
| BV 70 | BYP Fault Reset CMD | Reset a bypass fault | Command |
| BV 89 | BYP RUN Status | Running status | Read |
| BV 82 | BYP AUTO Mode Status | HOA in AUTO, so BMS commands apply | Read |
| AV 10 | Output Frequency | Output frequency, units per o1-03 | Read |
| AV 31 | Motor Current | Motor amps | Read |
| AV 13 | Output Power | Drive power in kW | Read |
| BV 90 | BYP Fault Status | Any active bypass fault | Read |
| AV 7 | Fault Details | Bit-coded active fault flags | Read |
Enable & remote start
Table C.1: Z1-07 Speed Reference Select = 2 and Z1-08 Run Command Select = 2 (BACnet / serial) let the network set speed and start the unit; both default to 1 (terminals / bypass digital input). BV58/BV59 run the bypass forward/reverse, BV69 selects drive or bypass and BV67 selects AUTO. Monitoring, parameter access, fault set/reset and the multi-function inputs work at any time.
Heartbeat & communication loss
Z3-11 = 1 (default) enables comm-fault detection. Z3-05 sets the action when nothing is received for Z3-06 (0.0-99.9 s, default 2.0 s; 0.0 never times out): 0 ignore, 1 alarm only (default), 2 EF0 fault to the drive, 3 EF0 and open the bypass contactor K3, 4 alarm AL14 and run at the Z3-10 preset speed. Z3-13 can restore the last BACnet speed and/or run commands after a power loss (default 0 = off).
Sensors & values from the BMS
AV3 PID Setpoint Cmd lets the BMS write the PID setpoint (-100 to 100 %). BV72-BV79 can act as the bypass digital inputs from the network when Z3-12 = 1.
Network setup
- Z3-01 = 3 selects BACnet (the default); Z3-02 is the MS/TP node (0-127, default 1).
- Z3-03 baud: default 3 = 9600 bps, up to 115200 bps; 1200-4800 bps give oPE29 with BACnet on bypass software VST800400 and later.
- Device instance = Z3-08 (low word) + Z3-09 (high word), in hex; default 1.
- Cycle power after changing Z3 settings; DIP switch S1 (or an external 120 ohm resistor) terminates the end of the line.
- The device object name (20 characters) is writable over BACnet MS/TP and takes effect after a power cycle.
Watch out for
- Z3-05 defaults to Alarm Only, so the unit keeps running when BACnet traffic stops.
- Z3-13 settings 2 and 3 let the bypass restart from stored BACnet commands at power-up before any new message arrives.
- BV56 Parameter Enter writes EEPROM; don't use it cyclically.
- BV72-BV79 do nothing unless Z3-12 = 1, and then they are ORed with the hard-wired inputs.
- Frequency objects use the o1-03 display units.
Yaskawa Z1000U HVAC Matrix Bypass (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 | 1 | Analog Input 1 Level | Modbus 004EH | % | Read | |
| AI | 2 | Analog Input 2 Level | Modbus 004FH | % | Read | |
| AI | 6 | Display Format o1-03 | Modbus 0502H | Read | ||
| AI | 7 | Scale Format b5-20 | Modbus 01E2H | Read | ||
| AI | 8 | Inverter Model o2-04 | Modbus 0508F | Read | ||
| AI | 9 | Rated Current n9-01 | Modbus 05D0H | A | Read | |
| AI | 10 | Motor Current UB-01 | Modbus 8780H | A | Read | |
| AI | 11 | Contactor Voltage | Modbus 8790H | V | Read | |
| AO | 1 | Analog Output 1 Level | Modbus 0007H | % | Command | |
| AO | 2 | Analog Output 2 Level | Modbus 0008H | % | Command | |
| AV | 1 | Operation Cmd | Packed run/command word; Modbus 0001H | Command | ||
| AVmin | 2 | Frequency Cmd | Frequency reference; Modbus 8401H | Hz (display units per o1-03) | Command | |
| AV | 3 | PID Setpoint Cmd | PID setpoint, -100 to 100 %; Modbus 0006H | % | Command | |
| AV | 4 | MF Output Cmd | Packed MF output word; Modbus 0009H | Command | ||
| AV | 5 | Reference Select Cmd | Packed reference select word; Modbus 000FH | Command | ||
| AV | 6 | Drive Status | Bitmap: run, reverse, ready, fault, outputs; Modbus 0020H | Read | ||
| AVmin | 7 | Fault Details | Bitmap of active fault groups; Modbus 0021H | Read | ||
| AV | 8 | Data Link Status | Bitmap of write/limit errors; Modbus 0022H | Read | ||
| AV | 9 | Frequency Reference | Modbus 0040H | Hz (display units per o1-03) | Read | |
| AVmin | 10 | Output Frequency | Modbus 0041H | Hz (display units per o1-03) | Read | |
| AV | 11 | Output Voltage | Modbus 0045H | V | Read | |
| AV | 12 | Output Current | Modbus 0026H | A | Read | |
| AVmin | 13 | Output Power | Modbus 0047H | kW | Read | |
| AV | 14 | Torque Reference | Modbus 0048H | % | Read | |
| AV | 15 | MF Input Status | Bitmap of multi-function input states; Modbus 002BH | Read | ||
| AV | 16 | Drive Status 2 | Bitmap of operating status flags; Modbus 002CH | Read | ||
| AV | 17 | MF Output Status | Bitmap of multi-function output states; Modbus 002DH | Read | ||
| AV | 18 | DC Bus Voltage | Modbus 0031H | V | Read | |
| AV | 19 | PID Feedback Level | Modbus 0038H | % | Read | |
| AV | 20 | PID Input Level | Modbus 0039H | % | Read | |
| AV | 21 | PID Output Level | Modbus 003AH | % | Read | |
| AV | 22 | Drive SW Num | Drive software number; Modbus 004DH | Read | ||
| AV | 23 | Bypass SW Num | Bypass software number; Modbus 8791H | Read | ||
| AV | 24 | Comm Error Detail | Bitmap of serial communication errors; Modbus 003DH | Read | ||
| AV | 25 | KVA Setting | Modbus 003EH | Read | ||
| AV | 26 | Control Method | Modbus 0043H | Read | ||
| AV | 27 | Accel Time | Modbus 0200H | s | Write | |
| AV | 28 | Decel Time | Modbus 0201H | s | Write | |
| AV | 29 | Parameter Number | Register number (decimal) for AV30 | Write | ||
| AV | 30 | Parameter Data | Data for the register in AV29 | Write | ||
| AVmin | 31 | Motor Current | Motor current measured by the bypass; Modbus 8780H | A | Read | |
| AV | 32 | 120 V to Kx Coils | Contactor coil supply voltage; Modbus 8790H | V | Read | |
| AV | 33 | Drive kWH | Energy used, 0.1 kWh resolution; Modbus 0x005C and 0x005D | kWh | Read | |
| BI | 1 | Input Terminal 1 | Modbus 002BH:bit 0 | Read | Active: ON, Inactive: OFF | |
| BI | 2 | Input Terminal 2 | Modbus 002BH:bit 1 | Read | Active: ON, Inactive: OFF | |
| BI | 3 | Input Terminal 3 | Modbus 002BH:bit 2 | Read | Active: ON, Inactive: OFF | |
| BI | 4 | Input Terminal 4 | Modbus 002BH:bit 3 | Read | Active: ON, Inactive: OFF | |
| BI | 5 | Input Terminal 5 | Modbus 002BH:bit 4 | Read | Active: ON, Inactive: OFF | |
| BI | 6 | Input Terminal 6 | Modbus 002BH:bit 5 | Read | Active: ON, Inactive: OFF | |
| BI | 7 | Input Terminal 7 | Modbus 002BH:bit 6 | Read | Active: ON, Inactive: OFF | |
| BI | 8 | Multi-Function Out 1 | Modbus 0020H:bit 5 | Read | Active: ON, Inactive: OFF | |
| BI | 9 | Multi-Function Out 2 | Modbus 0020H:bit 6 | Read | Active: ON, Inactive: OFF | |
| BI | 10 | BYP DI-1 STAT | Modbus 8781H: bit 0 | Read | Active: ON, Inactive: OFF | |
| BI | 11 | BYP DI-2 STAT | Modbus 8781H: bit 1 | Read | Active: ON, Inactive: OFF | |
| BI | 12 | BYP DI-3 STAT | Modbus 8781H: bit 2 | Read | Active: ON, Inactive: OFF | |
| BI | 13 | BYP DI-4 STAT | Modbus 8781H: bit 3 | Read | Active: ON, Inactive: OFF | |
| BI | 14 | BYP DI-5 STAT | Modbus 8781H: bit 4 | Read | Active: ON, Inactive: OFF | |
| BI | 15 | BYP DI-6 STAT | Modbus 8781H: bit 5 | Read | Active: ON, Inactive: OFF | |
| BI | 16 | BYP DI-7 STAT | Modbus 8781H: bit 6 | Read | Active: ON, Inactive: OFF | |
| BI | 17 | BYP DI-8 STAT | Modbus 8781H: bit 7 | Read | Active: ON, Inactive: OFF | |
| BI | 18 | BYP DO-1 STAT | Modbus 8782H: bit 0 | Read | Active: ON, Inactive: OFF | |
| BI | 19 | BYP DO-2 STAT | Modbus 8782H: bit 1 | Read | Active: ON, Inactive: OFF | |
| BI | 20 | BYP DO-3 STAT | Modbus 8782H: bit 2 | Read | Active: ON, Inactive: OFF | |
| BI | 21 | BYP DO-4 STAT | Modbus 8782H: bit 3 | Read | Active: ON, Inactive: OFF | |
| BI | 22 | BYP DO-5 STAT | Modbus 8782H: bit 4 | Read | Active: ON, Inactive: OFF | |
| BI | 23 | BYP DO-6 STAT | Modbus 8782H: bit 5 | Read | Active: ON, Inactive: OFF | |
| BI | 24 | BYP DO-7 STAT | Modbus 8782H: bit 6 | Read | Active: ON, Inactive: OFF | |
| BI | 25 | BYP DO-8 STAT | Modbus 8782H: bit 7 | Read | Active: ON, Inactive: OFF | |
| BI | 26 | BYP DO-9 STAT | Modbus 8783H: bit 0 | Read | Active: ON, Inactive: OFF | |
| BI | 27 | BYP DO-10 STAT | Modbus 8783H: bit 1 | Read | Active: ON, Inactive: OFF | |
| BO | 1 | MF Output M1-M2 | Modbus 0009H:bit 0 | Command | Active: ON, Inactive: OFF | |
| BO | 2 | MF Output M3-M4 | Modbus 0009H:bit 1 | Command | Active: ON, Inactive: OFF | |
| BO | 3 | MF Output M5-M6 | Modbus 0009H:bit 2 | Command | Active: ON, Inactive: OFF | |
| BO | 4 | Ref Sel: PID Setpoint | Modbus 000FH:bit 1 | Command | Active: ON, Inactive: OFF | |
| BO | 5 | Ref Sel: Term S5 IN | Modbus 8480H:bit 8 | Command | Active: ON, Inactive: OFF | |
| BO | 6 | Ref Sel: Term S6 IN | Modbus 8480H:bit 9 | Command | Active: ON, Inactive: OFF | |
| BO | 7 | Refl Sel: Term S7 IN | Modbus 8480H:bit 10 | Command | Active: ON, Inactive: OFF | |
| BO | 8 | BYP DO-07 COMMAND | Modbus 8403H:bit 6 | Command | Active: ON, Inactive: OFF | |
| BO | 9 | BYP DO-08 COMMAND | Modbus 8403H:bit 7 | Command | Active: ON, Inactive: OFF | |
| BO | 10 | BYP DO-09 COMMAND | Modbus 8403H:bit 8 | Command | Active: ON, Inactive: OFF | |
| BO | 11 | BYP DO-10 COMMAND | Modbus 8403H:bit 9 | Command | Active: ON, Inactive: OFF | |
| BV | 3 | Ext Fault Cmd | Modbus 8480H:bit 2 | Command | Active: FAULT, Inactive: OFF | |
| BV | 4 | Fault Reset Cmd | Reset drive fault; Modbus 8480H:bit 3 | Command | Active: RESET, Inactive: OFF | |
| BV | 7 | MF Input 3 Cmd | Modbus 8480H:bit 6 | Command | Active: ON, Inactive: OFF | |
| BV | 8 | MF Input 4 Cmd | Modbus 8480H:bit 7 | Command | Active: ON, Inactive: OFF | |
| BV | 9 | MF Input 5 Cmd | Modbus 8480H:bit 8 | Command | Active: ON, Inactive: OFF | |
| BV | 10 | MF Input 6 Cmd | Modbus 8480H:bit 9 | Command | Active: ON, Inactive: OFF | |
| BV | 11 | MF Input 7 Cmd | Modbus 8480H:bit 10 | Command | Active: ON, Inactive: OFF | |
| BV | 12 | Set Fault Contact Cmd | Modbus 0009H:bit 6 | Command | Active: ENABLE, Inactive: OFF | |
| BV | 13 | RUN-STOP | Modbus 0020H:bit 0 | Read | Active: RUN, Inactive: OFF | |
| BV | 14 | REV-FWD | Modbus 0020H:bit 1 | Read | Active: REV, Inactive: FWD | |
| BV | 15 | READY | Modbus 0020H:bit 2 | Read | Active: READY, Inactive: OFF | |
| BV | 16 | FAULT | Modbus 0020H:bit 3 | Read | Active: FAULTED, Inactive: OFF | |
| BV | 17 | Data Set Error | Modbus 0020H:bit 4 | Read | Active: ERROR, Inactive: OFF | |
| BV | 18 | Overcurrent – Gnd Flt | Modbus 0021H:bit 0 | Read | Active: OC-GF, Inactive: OFF | |
| BV | 19 | Main Ckt OverVoltage | Modbus 0021H:bit 1 | Read | Active: OV, Inactive: OFF | |
| BV | 20 | Drive OverLoad | Modbus 0021H:bit 2 | Read | Active: OL2, Inactive: OFF | |
| BV | 21 | Drive OverHeat | Modbus 0021H:bit 3 | Read | Active: OH1-OH2, Inactive: OFF | |
| BV | 22 | Fuse Blown | Modbus 0021H:bit 5 | Read | Active: PUF, Inactive: OFF | |
| BV | 23 | PID Feedback Loss | Modbus 0021H:bit 6 | Read | Active: FBL, Inactive: OFF | |
| BV | 24 | External Fault | Modbus 0021H:bit 7 | Read | Active: EF0-EF, Inactive: OFF | |
| BV | 25 | Hardware Error | Modbus 0021H:bit 8 | Read | Active: CPF, Inactive: OFF | |
| BV | 26 | Mtr Ovrld-OvrTorque | Modbus 0021H:bit 9 | Read | Active: OL1-OL3, Inactive: OFF | |
| BV | 27 | OverSpeed | Modbus 0021H:bit 10 | Read | Active: OS-DEV, Inactive: OFF | |
| BV | 28 | Main Ckt UnderVoltage | Modbus 0021H:bit 11 | Read | Active: UV, Inactive: OFF | |
| BV | 29 | MCU Cntl Pwr Sy Err | Modbus 0021H:bit 12 | Read | Active: UV1-2-3, Inactive: OFF | |
| BV | 30 | Output Phase Loss | Modbus 0021H:bit 13 | Read | Active: LF, Inactive: OFF | |
| BV | 31 | Communication Error | Modbus 0021H:bit 14 | Read | Active: CE, Inactive: OFF | |
| BV | 32 | Operator Disconnect | Modbus 0021H:bit 15 | Read | Active: OPR, Inactive: OFF | |
| BV | 33 | Operating | Modbus 002CH:bit 0 | Read | Active: OPERATING, Inactive: OFF | |
| BV | 34 | Zero Speed | Modbus 002CH:bit 1 | Read | Active: ON, Inactive: OFF | |
| BV | 35 | Frequency Agree | Modbus 002CH:bit 2 | Read | Active: ON, Inactive: OFF | |
| BV | 36 | Desired Freq Agree | Modbus 002CH:bit 3 | Read | Active: ON, Inactive: OFF | |
| BV | 37 | Frequency Detect 1 | Modbus 002CH:bit 4 | Read | Active: ON, Inactive: OFF | |
| BV | 38 | Frequency Detect 2 | Modbus 002CH:bit 5 | Read | Active: ON, Inactive: OFF | |
| BV | 39 | Drv Startup Complete | Modbus 002CH:bit 6 | Read | Active: ON, Inactive: OFF | |
| BV | 40 | Low Voltage Detect | Modbus 002CH:bit 7 | Read | Active: ON, Inactive: OFF | |
| BV | 41 | Base Block | Modbus 002CH:bit 8 | Read | Active: ON, Inactive: OFF | |
| BV | 42 | Frequency Ref Mode | Modbus 8785H:bit 8 | Read | Active: COM, Inactive: LOCAL | |
| BV | 43 | Run Command Mode | Modbus 8485H:bit 9 | Read | Active: COM, Inactive: LOCAL | |
| BV | 44 | Over Torque Detect | Modbus 002CH:bit 11 | Read | Active: ON, Inactive: OFF | |
| BV | 45 | Frequency Ref Lost | Modbus 002CH:bit 12 | Read | Active: ON, Inactive: OFF | |
| BV | 46 | Retry Error | Modbus 002CH:bit 13 | Read | Active: ON, Inactive: OFF | |
| BV | 47 | Modbus Comms Error | Modbus 002CH:bit 14 | Read | Active: ON, Inactive: OFF | |
| BV | 48 | Modbus Timeout Error | Modbus 002CH:bit 15 | Read | Active: ON, Inactive: OFF | |
| BV | 49 | CRC Error | Modbus 003DH:bit 0 | Read | Active: ON, Inactive: OFF | |
| BV | 50 | Invalid Data Length | Modbus 003DH:bit 1 | Read | Active: ON, Inactive: OFF | |
| BV | 51 | Parity Error | Modbus 003DH:bit 3 | Read | Active: ON, Inactive: OFF | |
| BV | 52 | Overrun Error | Modbus 003DH:bit 4 | Read | Active: ON, Inactive: OFF | |
| BV | 53 | Framing Error | Modbus 003DH:bit 5 | Read | Active: ON, Inactive: OFF | |
| BV | 54 | Timeout Error | Modbus 003DH:bit 6 | Read | Active: ON, Inactive: OFF | |
| BV | 55 | Parameter Accept | ON = apply AV29/AV30 write to RAM only; Modbus 0910H:bit 0 | Write | Active: ON, Inactive: OFF | |
| BV | 56 | Parameter Enter | ON = apply AV29/AV30 write and save to EEPROM; Modbus 0900H:bit 0 | Write | Active: ON, Inactive: OFF | |
| BV | 57 | Drive Comms Error | Modbus 002CH:bit 15 | Read | Active: ON, Inactive: OFF | |
| BVmin | 58 | BYP Run Fwd CMD | Run bypass forward; Modbus 8400H: bit 0 | Command | Active: ON, Inactive: OFF | |
| BV | 59 | BYP Run Rev CMD | Run bypass reverse; Modbus 8400H: bit 1 | Command | Active: ON, Inactive: OFF | |
| BV | 61 | BYP Xfer to BYP CMD | Transfer motor to bypass; Modbus 8400H: bit 3 | Command | Active: ON, Inactive: OFF | |
| BV | 62 | BYP Smok Prg BYP CMD | Smoke purge in bypass; Modbus 8400H: bit 4 | Command | Active: ON, Inactive: OFF | |
| BV | 63 | BYP Smok Prg DRV CMD | Smoke purge on the drive; Modbus 8400H: bit 5 | Command | Active: ON, Inactive: OFF | |
| BV | 64 | BYP Mtr OR Sel CMD | Modbus 8400H: bit 6 | Command | Active: ON, Inactive: OFF | |
| BV | 65 | BYP Mtr AND Sel CMD | Modbus 8400H: bit 7 | Command | Active: ON, Inactive: OFF | |
| BV | 66 | BYP Drive Select CMD | Select drive mode; Modbus 8400H: bit 9 | Command | Active: ON, Inactive: OFF | |
| BV | 67 | BYP Auto Select CMD | Select AUTO mode; Modbus 8400H: bit 10 | Command | Active: ON, Inactive: OFF | |
| BV | 69 | BYP BYPASS Sel CMD | Select bypass (BYP) or drive (DRV); Modbus 8400H: bit 12 | Command | Active: BYP, Inactive: DRV | |
| BVmin | 70 | BYP Fault Reset CMD | Reset bypass fault; Modbus 8400H: bit 13 | Command | Active: ON, Inactive: OFF | |
| BV | 71 | BYP Ext Fault CMD | External bypass fault; Modbus 8400H: bit 14 | Command | Active: ON, Inactive: OFF | |
| BV | 72 | BYP DI-01 Command | Modbus 8402H: bit 0; disabled unless Z3-12 = 1 | Write | Active: ON, Inactive: OFF | |
| BV | 73 | BYP DI-02 Command | Modbus 8402H: bit 1; disabled unless Z3-12 = 1 | Write | Active: ON, Inactive: OFF | |
| BV | 74 | BYP DI-03 Command | Modbus 8402H: bit 2; disabled unless Z3-12 = 1 | Write | Active: ON, Inactive: OFF | |
| BV | 75 | BYP DI-04 Command | Modbus 8402H: bit 3; disabled unless Z3-12 = 1 | Write | Active: ON, Inactive: OFF | |
| BV | 76 | BYP DI-05 Command | Modbus 8402H: bit 4; disabled unless Z3-12 = 1 | Write | Active: ON, Inactive: OFF | |
| BV | 77 | BYP DI-06 Command | Modbus 8402H: bit 5; disabled unless Z3-12 = 1 | Write | Active: ON, Inactive: OFF | |
| BV | 78 | BYP DI-07 Command | Modbus 8402H: bit 6; disabled unless Z3-12 = 1 | Write | Active: ON, Inactive: OFF | |
| BV | 79 | BYP DI-08 Command | Modbus 8402H: bit 7; disabled unless Z3-12 = 1 | Write | Active: ON, Inactive: OFF | |
| BV | 80 | BYP HAND Mode Status | Modbus 8784H: bit 0 | Read | Active: ON, Inactive: OFF | |
| BV | 81 | BYP OFF Mode Status | Modbus 8784H: bit 1 | Read | Active: ON, Inactive: OFF | |
| BVmin | 82 | BYP AUTO Mode Status | Modbus 8784H: bit 2 | Read | Active: ON, Inactive: OFF | |
| BV | 83 | BYP DRV Mode Status | Modbus 8784H: bit 3 | Read | Active: ON, Inactive: OFF | |
| BV | 84 | BYP BYPASS Mode Stat | Modbus 8784H: bit 4 | Read | Active: ON, Inactive: OFF | |
| BV | 85 | BYP Smk Prg BYP Stat | Modbus 8784H: bit 5 | Read | Active: ACTIVE, Inactive: OFF | |
| BV | 86 | BYP Smk Prg DRV Stat | Modbus 8784H: bit 6 | Read | Active: ACTIVE, Inactive: OFF | |
| BV | 87 | BYP Safety Status | Modbus 8784H: bit 7 | Read | Active: OPEN, Inactive: CLOSED | |
| BV | 88 | BYP BAS Interlk Stat | Modbus 8785H: bit 0 | Read | Active: OPEN, Inactive: CLOSED | |
| BVmin | 89 | BYP RUN Status | Running (drive or bypass); Modbus 8785H: bit 1 | Read | Active: RUN, Inactive: OFF | |
| BVmin | 90 | BYP Fault Status | Any active bypass fault; Modbus 8785H: bit 2 | Read | Active: FAULT, Inactive: OFF | |
| BV | 91 | BYP Auto Xfer Status | Modbus 8785H: bit 3 | Read | Active: ACTIVE, Inactive: OFF | |
| BV | 92 | BYP Remote Xfer Stat | Modbus 8785H: bit 4 | Read | Active: ACTIVE, Inactive: OFF | |
| BV | 93 | BYP Energy Save Stat | Modbus 8785H: bit 5 | Read | Active: ACTIVE, Inactive: OFF | |
| BV | 94 | BYP Motor 1 Sel Stat | Modbus 8785H: bit 6 | Read | Active: SELECT, Inactive: OFF | |
| BV | 95 | BYP Motor 2 Sel Stat | Modbus 8785H: bit 7 | Read | Active: SELECT, Inactive: OFF | |
| BV | 96 | BYP Drive Flt Status | Modbus 8786H: bit 0 | Read | Active: FAULT, Inactive: OFF | |
| BV | 97 | BYP Safety Flt Stat | Modbus 8786H: bit 1 | Read | Active: FAULT, Inactive: OFF | |
| BV | 98 | BYP BAS ILock Status | Modbus 8786H: bit 2 | Read | Active: FAULT, Inactive: OFF | |
| BV | 99 | BYP Ext Fault Stat | Modbus 8786H: bit 3 | Read | Active: FAULT, Inactive: OFF | |
| BV | 101 | BYP Motor OL Stat | Modbus 8786H: bit 5 | Read | Active: FAULT, Inactive: OFF | |
| BV | 102 | BYP Motor 1 OL Stat | Modbus 8786H: bit 6 | Read | Active: FAULT, Inactive: OFF | |
| BV | 103 | BYP Mtr 2 OL Stat | Modbus 8786H: bit 7 | Read | Active: FAULT, Inactive: OFF | |
| BV | 104 | BYP Input Phase Loss | Modbus 8787H: bit 0 | Read | Active: FAULT, Inactive: OFF | |
| BV | 105 | BYP Drive Comms | Modbus 8787H: bit 2 | Read | Active: FAULT, Inactive: OFF | |
| BV | 106 | BYP Loss Of Load | Modbus 8787H: bit 5 | Read | Active: FAULT, Inactive: OFF | |
| BV | 107 | BYP Option Brd Comms | Modbus 8787H: bit 3 | Read | Active: FAULT, Inactive: OFF |
No points match these filters.
Object ID lookup: Yaskawa Z1000U HVAC Matrix Bypass point IDs by name
AI1Analog Input 1 LevelAI2Analog Input 2 LevelAI6Display Format o1-03AI7Scale Format b5-20AI8Inverter Model o2-04AI9Rated Current n9-01AI10Motor Current UB-01AI11Contactor VoltageAO1Analog Output 1 LevelAO2Analog Output 2 LevelAV1Operation CmdAV2Frequency CmdAV3PID Setpoint CmdAV4MF Output CmdAV5Reference Select CmdAV6Drive StatusAV7Fault DetailsAV8Data Link StatusAV9Frequency ReferenceAV10Output FrequencyAV11Output VoltageAV12Output CurrentAV13Output PowerAV14Torque ReferenceAV15MF Input StatusAV16Drive Status 2AV17MF Output StatusAV18DC Bus VoltageAV19PID Feedback LevelAV20PID Input LevelAV21PID Output LevelAV22Drive SW NumAV23Bypass SW NumAV24Comm Error DetailAV25KVA SettingAV26Control MethodAV27Accel TimeAV28Decel TimeAV29Parameter NumberAV30Parameter DataAV31Motor CurrentAV32120 V to Kx CoilsAV33Drive kWHBI1Input Terminal 1BI2Input Terminal 2BI3Input Terminal 3BI4Input Terminal 4BI5Input Terminal 5BI6Input Terminal 6BI7Input Terminal 7BI8Multi-Function Out 1BI9Multi-Function Out 2BI10BYP DI-1 STATBI11BYP DI-2 STATBI12BYP DI-3 STATBI13BYP DI-4 STATBI14BYP DI-5 STATBI15BYP DI-6 STATBI16BYP DI-7 STATBI17BYP DI-8 STATBI18BYP DO-1 STATBI19BYP DO-2 STATBI20BYP DO-3 STATBI21BYP DO-4 STATBI22BYP DO-5 STATBI23BYP DO-6 STATBI24BYP DO-7 STATBI25BYP DO-8 STATBI26BYP DO-9 STATBI27BYP DO-10 STATBO1MF Output M1-M2BO2MF Output M3-M4BO3MF Output M5-M6BO4Ref Sel: PID SetpointBO5Ref Sel: Term S5 INBO6Ref Sel: Term S6 INBO7Refl Sel: Term S7 INBO8BYP DO-07 COMMANDBO9BYP DO-08 COMMANDBO10BYP DO-09 COMMANDBO11BYP DO-10 COMMANDBV3Ext Fault CmdBV4Fault Reset CmdBV7MF Input 3 CmdBV8MF Input 4 CmdBV9MF Input 5 CmdBV10MF Input 6 CmdBV11MF Input 7 CmdBV12Set Fault Contact CmdBV13RUN-STOPBV14REV-FWDBV15READYBV16FAULTBV17Data Set ErrorBV18Overcurrent – Gnd FltBV19Main Ckt OverVoltageBV20Drive OverLoadBV21Drive OverHeatBV22Fuse BlownBV23PID Feedback LossBV24External FaultBV25Hardware ErrorBV26Mtr Ovrld-OvrTorqueBV27OverSpeedBV28Main Ckt UnderVoltageBV29MCU Cntl Pwr Sy ErrBV30Output Phase LossBV31Communication ErrorBV32Operator DisconnectBV33OperatingBV34Zero SpeedBV35Frequency AgreeBV36Desired Freq AgreeBV37Frequency Detect 1BV38Frequency Detect 2BV39Drv Startup CompleteBV40Low Voltage DetectBV41Base BlockBV42Frequency Ref ModeBV43Run Command ModeBV44Over Torque DetectBV45Frequency Ref LostBV46Retry ErrorBV47Modbus Comms ErrorBV48Modbus Timeout ErrorBV49CRC ErrorBV50Invalid Data LengthBV51Parity ErrorBV52Overrun ErrorBV53Framing ErrorBV54Timeout ErrorBV55Parameter AcceptBV56Parameter EnterBV57Drive Comms ErrorBV58BYP Run Fwd CMDBV59BYP Run Rev CMDBV61BYP Xfer to BYP CMDBV62BYP Smok Prg BYP CMDBV63BYP Smok Prg DRV CMDBV64BYP Mtr OR Sel CMDBV65BYP Mtr AND Sel CMDBV66BYP Drive Select CMDBV67BYP Auto Select CMDBV69BYP BYPASS Sel CMDBV70BYP Fault Reset CMDBV71BYP Ext Fault CMDBV72BYP DI-01 CommandBV73BYP DI-02 CommandBV74BYP DI-03 CommandBV75BYP DI-04 CommandBV76BYP DI-05 CommandBV77BYP DI-06 CommandBV78BYP DI-07 CommandBV79BYP DI-08 CommandBV80BYP HAND Mode StatusBV81BYP OFF Mode StatusBV82BYP AUTO Mode StatusBV83BYP DRV Mode StatusBV84BYP BYPASS Mode StatBV85BYP Smk Prg BYP StatBV86BYP Smk Prg DRV StatBV87BYP Safety StatusBV88BYP BAS Interlk StatBV89BYP RUN StatusBV90BYP Fault StatusBV91BYP Auto Xfer StatusBV92BYP Remote Xfer StatBV93BYP Energy Save StatBV94BYP Motor 1 Sel StatBV95BYP Motor 2 Sel StatBV96BYP Drive Flt StatusBV97BYP Safety Flt StatBV98BYP BAS ILock StatusBV99BYP Ext Fault StatBV101BYP Motor OL StatBV102BYP Motor 1 OL StatBV103BYP Mtr 2 OL StatBV104BYP Input Phase LossBV105BYP Drive CommsBV106BYP Loss Of LoadBV107BYP Option Brd Comms
Integration notes
- Objects named Not used/Not Used (AI3-AI5, BV1, BV2, BV5, BV6, BV60, BV68, BV100) are left out. The manual prints BO10/BO11 as B010/B011.
- This MS/TP table matches the Z1000 Bypass list except that it uses PID names (AV3, AV19-AV21, BO4, BV23) and stops at AV33 and BI27; the later run-time and fault-code objects (AV35-AV42, BI28-BI30) are not in this table.
- The same manual also has a separate BACnet/IP object table for the Ethernet option (Z4 parameters); it is not included here (see the Yaskawa JOHB-SMP3 BACnet/IP list).
- BV72-BV79 (network digital inputs) are disabled unless Z3-12 = 1; those inputs are ORed with the physical inputs.
- BV42 and BV43 registers are printed as 8785H bit 8 and 8485H bit 9; they are listed as printed.
- Each description gives the Modbus register where the manual lists one.
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 Z1000U HVAC Matrix Bypass (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 Yaskawa Z1000U HVAC Matrix Bypass (BACnet MS/TP)
How many BACnet points does the Yaskawa Z1000U HVAC Matrix Bypass (BACnet MS/TP) have?
This list has 181 BACnet objects: 8 analog inputs, 2 analog outputs, 33 analog values, 27 binary inputs, 11 binary outputs, 100 binary values. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Yaskawa Z1000U HVAC Matrix Bypass (BACnet MS/TP) BACnet points are writable?
52 of the 181 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 Yaskawa Z1000U HVAC Matrix Bypass (BACnet MS/TP) BACnet documentation?
The source is YASKAWA Z1000U HVAC MATRIX Drive Bypass Technical Manual (Appendix C.6, BACnet MS/TP Objects) (SIEP YAIZ1D 01E), revision 2026-07, published free by Yaskawa at https://www.yaskawa.com/delegate/getAttachment?documentId=SIEPYAIZ1D01&cmd=documents&documentName=SIEPYAIZ1D01.pdf.
What are the minimum BACnet points to integrate the Yaskawa Z1000U HVAC Matrix Bypass (BACnet MS/TP)?
Start with BV 58 BYP Run Fwd CMD (Start/stop from the BMS (bypass)); AV 2 Frequency Cmd (Frequency reference, units per o1-03); BV 70 BYP Fault Reset CMD (Reset a bypass fault); BV 89 BYP RUN Status (Running status); BV 82 BYP AUTO Mode Status (HOA in AUTO, so BMS commands apply); AV 10 Output Frequency (Output frequency, units per o1-03); AV 31 Motor Current (Motor amps); AV 13 Output Power (Drive power in kW); BV 90 BYP Fault Status (Any active bypass fault); AV 7 Fault Details (Bit-coded active fault flags).
How do I enable BMS control of the Yaskawa Z1000U HVAC Matrix Bypass (BACnet MS/TP)?
Table C.1: Z1-07 Speed Reference Select = 2 and Z1-08 Run Command Select = 2 (BACnet / serial) let the network set speed and start the unit; both default to 1 (terminals / bypass digital input). BV58/BV59 run the bypass forward/reverse, BV69 selects drive or bypass and BV67 selects AUTO. Monitoring, parameter access, fault set/reset and the multi-function inputs work at any time.
Does the Yaskawa Z1000U HVAC Matrix Bypass (BACnet MS/TP) need a BACnet heartbeat or have a communication timeout?
Z3-11 = 1 (default) enables comm-fault detection. Z3-05 sets the action when nothing is received for Z3-06 (0.0-99.9 s, default 2.0 s; 0.0 never times out): 0 ignore, 1 alarm only (default), 2 EF0 fault to the drive, 3 EF0 and open the bypass contactor K3, 4 alarm AL14 and run at the Z3-10 preset speed. Z3-13 can restore the last BACnet speed and/or run commands after a power loss (default 0 = off).
Can the BMS supply sensor values to the Yaskawa Z1000U HVAC Matrix Bypass (BACnet MS/TP)?
AV3 PID Setpoint Cmd lets the BMS write the PID setpoint (-100 to 100 %). BV72-BV79 can act as the bypass digital inputs from the network when Z3-12 = 1.
How do I check these points on the real Z1000U HVAC Matrix Bypass (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 Yaskawa BACnet points lists
- Variable frequency drive (HVAC)
Yaskawa HV600 HVAC drive (embedded BACnet MS/TP)
Yaskawa HV600 HVAC fan and pump drives (HV60U, 208 V and 480 V class) using the built-in RS-485 port with H5-08 set to BACnet.
Also known as: HV600, HV60U, HV600 AC drive, HV600 BACnet MS/TP, SIEPC71061732 - Variable frequency drive with bypass (HVAC)
Yaskawa HV600 Narrow & Enclosed Bypass (BACnet MS/TP)
Yaskawa HV600 Narrow and Enclosed Bypass packages (H6B models) connected to BACnet MS/TP at the bypass controller.
Also known as: HV600 Bypass, HV600 Narrow Bypass, HV600 Enclosed Bypass, H6B1, H6BP, HV600 bypass controller, SIEPYAIH6B01 - Variable frequency drive BACnet IP option card
Yaskawa JOHB-SMP3 BACnet/IP option (HV600, Z1000U, GA800 drives)
Yaskawa HV600, FP605, Z1000U, GA500, GA700 and GA800 drives and HV600/FP605 bypasses fitted with the JOHB-SMP3 card.
Also known as: JOHB-SMP3, SMP3, HV600 BACnet/IP, Z1000U BACnet/IP, FP605 BACnet/IP, GA800 BACnet/IP, SIEP C730600 0MB - Variable frequency drive BACnet MS/TP option card
Yaskawa SI-B3 BACnet MS/TP option (A1000, P1000, U1000, FP605 drives)
Yaskawa A1000, P1000, iQpump1000, U1000, FP605 and iQpump605 drives fitted with the SI-B3 BACnet MS/TP option card.
Also known as: SI-B3, SI-B3/V, A1000 BACnet, P1000 BACnet, iQpump1000 BACnet, U1000 BACnet, FP605 BACnet, iQpump605 BACnet, TOEPYAICOM22 - Variable frequency drive BACnet MS/TP option card
Yaskawa SI-B3/V BACnet MS/TP option (V1000 drive)
Yaskawa V1000 compact drives (CIMR-VA, software VST910120 and later) fitted with the SI-B3/V BACnet MS/TP option.
Also known as: SI-B3/V, SI-B3 V1000, V1000 BACnet, V1000 BACnet MS/TP, CIMR-VA BACnet, TOEP YAICOM 19 - Variable frequency drive with bypass (HVAC)
Yaskawa Z1000 Bypass (BACnet MS/TP)
Yaskawa Z1000 Bypass packages (Z1B1, 208 V and 480 V) connected to BACnet MS/TP at the bypass controller.
Also known as: Z1000 Bypass, Z1B1, Z1000 drive bypass, Z1000 bypass controller, SIEP YAIZ1B 01 - Variable frequency drive (HVAC)
Yaskawa Z1000 HVAC drive (embedded BACnet MS/TP)
Yaskawa Z1000 HVAC fan and pump drives (CIMR-ZU, 200 V and 400 V class) using the built-in RS-485 port with H5-08 set to BACnet.
Also known as: Z1000, CIMR-ZU, CIMR-ZUA, Z1000 AC Drive for HVAC Fan and Pump, SIEP C710616 45
Source: YASKAWA Z1000U HVAC MATRIX Drive Bypass Technical Manual (Appendix C.6, BACnet MS/TP Objects) · SIEP YAIZ1D 01E · rev. 2026-07. Object names, instances and units are reproduced as published; descriptions are our own.