Rockwell Automation 20-COMM-H RS485 HVAC Adapter FRN 2.xxx - Manual (Page 22)

2-8 Installing the Adapter
20-COMM-H RS-485 HVAC Adapter User Manual
Publication 20COMM-UM009D-EN-P
Configuring/Verifying Key Drive Parameters
The PowerFlex 7-Class drive can be separately configured for the control
and Reference functions in various combinations. For example, you could
set the drive to have its control come from a peripheral or terminal block
with the Reference coming from the network. Or you could set the drive to
have its control come from the network with the Reference coming from
another peripheral or terminal block. Or you could set the drive to have
both its control and Reference come from the network.
The following steps in this section assume that the drive will receive the
Logic Command and Reference from the network.
1. Use drive Parameter 090 - [Speed Ref A Sel] to set the drive speed
Reference to “22” (DPI Port 5).
2. If digital inputs are not used, change drive Parameters 361 - [Dig In1
Sel] through 366 - [Dig In6 Sel] to “0” (Not Used).
3. Verify that drive Parameter 213 - [Speed Ref Source] is reporting that
the source of the Reference to the drive is “22” (DPI Port 5). This
ensures that any Reference commanded from the network can be
monitored by using drive Parameter 002 - [Commanded Speed]. If a
problem occurs, this verification step provides the diagnostic capability
to determine whether the drive/adapter or the network is the cause.
Adapter Status Indicators
➋ PORT Green Flashing Normal Operation. The adapter is establishing an I/O
connection to the drive. It will turn solid green or red.
Steady Normal Operation. The adapter is properly connected
and communicating with the drive
MOD Green Flashing Normal Operation. The adapter is operating but is not
transferring I/O data.
Steady Normal Operation. The adapter is operating and
transferring I/O data.
NET A Green Flashing Normal Operation. The adapter is properly connected
but does not have an I/O connection.
Steady Normal Operation. The adapter is properly connected
and communicating on the network.
NET B Green Off Normal Operation. The adapter is properly connected
but is idle.
Flashing Normal Operation. The adapter is properly connected
and transmitting data packets on the network.
Item Name Color State Description