Rockwell Automation 20D PowerFlex 700S with Phase I Control Reference Manual - Manual (Page 160)

160 Rockwell Automation Publication PFLEX-RM002D-EN-E - August 2013
Chapter 1 Detail Drive Configuration and Operation
Start-Up See Autotune on page 17 .
Stop Modes See Start/Stop Modes on page 156 .
SynchLink This section contains information specific to PowerFlex 700S SynchLink
parameters and gives an example of setting up the PowerFlex 700S SynchLink
using DriveExecutive. See the SynchLink System Design Guide, publication
1756-TD008 , for PowerFlex 700S SynchLink topologies, hardware, and wiring
details.
Technical Information
SynchLink data is transmitted as a combination of direct and buffered data. The
following table shows the different formats supported by the PowerFlex 700S for
transmit/receive data and the respective SynchLink fiber update rates for the
direct and buffered data.
SynchLink Configuration
Parameter 1000 [SL Node Cnfg] is broken down into 3 bits:
• Bit 1 - “Time Keeper” - This bit is turned on in the SynchLink master.
Only one node in a SynchLink network can be the time keeper.
• Bit 2 - “Reserved” - Not used.
• Bit 3 - “Synch Now” - Selecting this bit enables the “Synch Now”
synchronization mode. This mode will cause the drive's system clock to
synchronize to the time keeper as quickly as possible. Deselecting this bit
enables the “Synch Fast” synchronization mode. This method will take
longer to synchronize the drive's system clock to the time keeper, but has
less impact on other tasks running in the drive. Synchronization only
occurs on a drive power-up or initialization.
Parameter 1010 [SL Rx Comm Frmt] selects the format of data to be received. It
can be set to:
• “0A, 0D, 0B”- No data.
• “0A, 2D, 18B” - 2 direct words and 18 buffered words.
• “0A, 4D, 8B” - 4 direct words and 8 buffered words.
• “0A, 4D, 18B” - 4 direct words and 18 buffered words.
# of Direct Words Direct Word Update # of Buffered Words Buffered Word Update
2 50 μSec 18 0.5 ms
4 50 μSec 18 1 ms
4 50 μSec 8 0.5 ms