beautypg.com

Configuring the rs-485 network, Using multi-drive add-on profile – Rockwell Automation 25-COMM-E2P PowerFlex 25-COMM-E2P Dual-Port EtherNet/IP Adapter User Manual

Page 91

background image

Rockwell Automation Publication 520COM-UM003A-EN-E - June 2013

91

Using Multi-Drive Mode

Chapter 7

Configuring the RS-485
Network

The following parameters must be set in the daisy-chained PowerFlex 4M drives
and not in the master drive:

Note:

The RS-485 Multi-drive network is fixed at 19.2K baud rate, 8 data bits,

no parity, and 1 stop bit.

The following Multi-drive parameters must be set in the master PowerFlex 525
drive:

Using Multi-Drive Add-On
Profile

Before using the Multi-drive Add-On Profile, ensure that you have completed the
following steps:

The master and daisy-chained drives are powered, networked, and
configured. See

System Wiring on page 89

.

Parameter

Value

P106 [Start Source]

5 “Comm Port”

P108 [Speed Reference]

5 “Comm Port”

C302 [Comm Data Rate]

4 “19.2K”

C303 [Comm Node Addr]

1...247 (must be unique)

C306 [Comm Format]

0 “RTU-8-N-1”

IMPORTANT

Parameters [Comm Loss Action] and [Comm Loss Time] in the daisy-chained
drives are still used in Multi-drive mode. If the RS-485 cable is disconnected or
broken, the disconnected drive(s) will take the corresponding Comm Loss
Action(s). On the EtherNet/ IP side, Device parameters 23 [Comm Flt Action]
and 24 [Idle Flt Action] determine the action taken for ALL of the drives on the
Multi-drive node.

Parameter

Value

P046 [Start Source 1]

4 “Network Opt”

P047 [Speed Reference1]

4 “Network Opt”

C169 [MultiDrv Sel]

1 “Network Opt”
Note: Drive must be power cycled after setting this
parameter.

C171 [Drv 1 Addr]
C172 [Drv 2 Addr]
C173 [Drv 3 Addr]
C174 [Drv 4 Addr]

2
3
4
5
Note: Drive must be power cycled after setting this
parameter.

C175 [DSI I/O Cfg]

0 “Drive 0”
1 “Drive 0-1”
2 “Drive 0-2”
3 “Drive 0-3”
4 “Drive 0-4”
Note: Drive must be power cycled after setting this
parameter.

IMPORTANT

Parameters can be set using a DSI peripheral (22-HIM-A3 or 22-HIM-C2S) only
when Host parameter C169 [MultiDrv Sel] is set to 0 “Disabled”.