ABB ACH550-01-08A8-4 [12/32] Controlling the drive

12 ACH550 BACnet User’s Manual

Start-up

2. Place the BACnet channel in “reset”: Set drive parameter 5302, EFB STATION ID = 0.

• This setting holds the BACnet communication channel in reset while remaining

settings are completed.

3. Define the MS/TP baud rate.

• Set drive parameter 5303, EFB BAUD RATE = appropriate value

4. Define the Device Object instance.

• To define a specific device object instance value, use drive parameters 5311 and

5317 (object instance values must be unique and in the range 1 to 4,194,303).

• To use the drive’s MS/TP MAC ID as the device object instance value, set drive

parameter 5311 and 5317 = 0.

5. Define a unique MS/TP MAC ID. Set drive parameter 5302, EFB STATION ID =

appropriate value.

• Once this parameter is set to a non-zero value, current BACnet settings are

“latched” and used for communication until the channel is reset.

• In order to participate in MS/TP token passing, the MAC ID used must be within

the limits defined by other masters’ “Max Master” property.

6. Confirm proper BACnet communication.

• When BACnet communication is operation properly, drive parameter 5316, EFB

PAR 16 (the MS/TP token counter), should be continually increasing.

• Drive parameter 5306, UART ERRORS, should be stable.

Activate Drive Control Functions

Controlling the Drive

Fieldbus control of various drive functions requires configuration to:

• Tell the drive to accept fieldbus control of the function.

• Define as a fieldbus input, any drive data required for control.

• Define as a fieldbus output, any control data required by the drive.

The following sections describe the configuration required for each control function.

Note: The user should change only the parameters for the functions you wish to

control via BACnet. All other parameters should typically remain at factory default.

For simple start/stop and speed reference BACnet control, only parameters 1001

and 1103 need to be changed to COMM.