WEG CFW-09 - Page 198

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CHAPTER 6 - DETAILED PARAMETER DESCRIPTION
Range
[Factory Setting]
Parameter
Unit
Description / Notes
It defines the protocol type used for the serial communication.
P312
(1)
0 to 9
Type of Serial
[ 0 ]
Protocol
-
P312
0
1
2
3
4
5
6
7
8
9
Type of Serial Protocol
WBUS Protocol
Modbus-RTU, 9600 bps, no parity
Modbus-RTU, 9600 bps, odd parity
Modbus-RTU, 9600 bps, even parity
Modbus-RTU, 19200 bps, no parity
Modbus-RTU, 19200 bps, odd parity
Modbus-RTU, 19200 bps, even parity
Modbus-RTU, 38400 bps, no parity
Modbus-RTU, 38400 bps, odd parity
Modbus-RTU, 38400 bps, even parity
Table 6.51 -
Type of serial protocol
If this parameter is set to ON, the bit #6 of the control wordshall be kept
in 1 to the inverter operation. It will allow the inverter to be disabled in
case of STOP in the master of the Fieldbus network, where the control
word is reset (all bits are set to zero).
Defines the inverter behavior when the serial communicationis inactive
(causing error E28), when physical connection with the master of the
Fieldbus is interrupted (causing error E29) or when the Fieldbus board
is inactive (causing error E30). Refer to item 8.12.7.
For P313 = 4, when the inverter detects Fieldbus communication fault
and changes from Remote to Local mode, then the Start/Stop and the
speed referencecommands theinverter was receiving inRemote mode
will be kept in Local mode, if these commands were 3-wire Start/Stop
and Electronic Potentiometer or Start/Stop and reference via HMI.
For P313 = 5, when the inverter detects Fieldbus communication fault,
a fatalerror will be generated in the equipment, disabling the motor and
making it necessary an error reset, so that the operation be possible
again.
Disablingwith E28/E29/E30
Disable via Start/Stop
Disable via General Enable
No Action
Changes to LOCAL 1
Changes to LOCAL 2 - Keeping the Commands and the Reference
Causes Fatal Error
P313
0
1
2
3
4
5
P313
0 to 5
Disabling with
[ 0 ]
E28/E29/E30
-
Table 6.52 -
Disabling with E28/E29/E30