Rockwell Automation 22-COMM-B PowerFlex BACnet MS/TP Adapter - Manual (Page 40)

4-2 Using BACnet Objects
This section describes how to operate a drive on the network using a
combination of BACnet object types for basic control.
Basic Drive Control (Start/Stop)
1. Write a speed reference value (in %) to the Reference 1 Analog
Value object (AV0) Present Value property.
2. To start the drive, write a value of “1” to the Run/Stop Binary Value
object (BV10) Present Value property.
3. To stop the drive, write a value of “0” (zero) to the Run/Stop Binary
Value object (BV10) Present Value property.
Using an Alternate Speed Reference
To assign an alternate speed reference to the drive:
1. Write a speed reference value (in %) to the Reference 2 Analog
Value object (AV1) Present Value property.
2. Write a value of “1” to the Ref2/Ref1 Binary Value object (BV12)
Present Value property.
Changing Motor Rotation Direction
To command a reverse direction of motor rotation when the drive is
running, write a value of “1” to the Rev/Fwd Binary Value object
(BV11) Present Value property. To command a forward direction when
the drive is running, write a value of “0” (zero) to the Rev/Fwd Binary
Value object (BV11) Present Value property.
Clearing a Drive Fault
To clear a drive fault, write a value of “1” to the Clear Faults Binary Value
object (BV13) Present Value property.
Basic Drive Operation on the Network
!
ATTENTION: Control information written to the adapter by a BACnet
controller is volatile. That is, it will not survive an adapter reset or
power cycle. For example, if a BACnet controller writes to a Binary
Output (BO) object to energize an output relay on the drive and then
that drive is reset or power cycled, the drive will return the relay to its
default (de-energized) state. The adapter will not attempt to restore the
relay to the energized state unless a BACnet controller writes to it again.