Communications Group
(continued)
50
C305 [Comm Loss Time]
Related Parameter(s):
d015, C304
Sets the time that the drive will remain in communication loss before implementing the option selected in
C304
[Comm Loss Action].
Values
Default
5.0 Secs
Min/Max:
0.1/ 60.0 Secs
Display:
0.1 Secs
C306 [Comm Format]
Selects the protocol (RTU only), data bits (8 data bits only), parity (None, Even, Odd), and stop bits (1 stop bit only) used by the RS485 port on
the drive.
Refer to
Appendix C
for details on using the drive communication features.
Important:
Power to drive must be cycled before any changes will affect drive operation.
Options
0
“RTU 8-N-1” (Default)
1
“RTU 8-E-1”
2
“RTU 8-O-1”
3
“RTU 8-N-2”
4
“RTU 8-E-2”
5
“RTU 8-O-2”
C307 [Comm Write Mode]
Determines whether parameter changes made over communication port are saved and stored in Non-Volatile Storage (NVS) or RAM only. If
they are stored in RAM, the values will be lost at power-down.
Options
0
“Save” (Default)
1
“RAM Only”
ATTENTION:
Risk of equipment damage exists. If a controller is programmed to write parameter data to
Non-Volatile
Storage (NVS) frequently, the NVS will quickly exceed its life cycle and cause the drive to malfunction. Do not
create a program that frequently uses configurable outputs to write parameter data to NVS
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