Rockwell Automation 22-COMM-P PowerFlex Profibus Adapter - Manual (Page 65)

Using Multi-Drive Mode 7-5
• When the adapter—mounted in a PowerFlex 40/40P/400 drive or a
DSI External Comms Kit— is powered up, all configured
daisy-chained drives must be present before an I/O connection is
allowed on the network (that is, before the drives can be controlled).
If the adapter PORT indicator is steady green, the adapter is properly
communicating with all drives on the Multi-Drive node. If the PORT
indicator is steady red, one or more of the drives on the RS-485
network is not communicating.
• When the PowerFlex 40/40P/400 drive with the internal-mounted
adapter is powered down, communication with the daisy-chained
drives is disrupted and the drives will take their respective Comm
Loss Actions. When the adapter is used in a DSI External Comms
Kit (22-XCOMM-DC-BASE), communication will not be disrupted
when a daisy-chained drive is powered down.
• When any of the daisy-chained drives is powered down, the
respective Input Image (Logic Status and Feedback) sent to the
scanner will be zeros, and the PORT and MOD indicators on the
adapter will alternately flash red. The I/O connection will not be
dropped until the last drive is disconnected or powered down.
Important: Status information from the scanner will not indicate
there is a fault at the node, and the I/O connection will
not be dropped. If your application requires an action to
be taken when DSI communication is lost with one or
more drives, monitor adapter Parameter 12 - [DSI I/O
Act] to verify that the adapter is communicating with
all connected drives.
The AK-U0-RJ45-TB2P kit contains 6 two-position terminal block
connectors (
Figure 7.6 ) which can be used to conveniently daisy-chain
the PowerFlex 4-Class drives. Two terminating resistors are also
included with the AK-U0-RJ45-TB2P kit.
Figure 7.6 AK-U0-RJ45-TB2P Terminal Block Connector
Additional Information
System Wiring