100
DETAILED PARAMETER DESCRIPTION
Range
[Factory Setting]
Parameter Unit Description / Notes
If the inverter does not receive any valid message (via serial interface)
during the interval programmed at P314, the action set at P313 will
be performed and error E28 is shown on the display.
The different actions are:
- P313=0 : disables inverter via deceleration ramp;
- P313=1 : triggers the general disable command of the inverter;
- P313=2 : indicates only E28;
- P313=3 : changes the command reference to local mode.
If the communication is re-established, E28 switches off and the
inverter does not change its status.
Actuation interval of the Serial Watchdog. If the value of P314 is
equal to 0, the Serial Watchdog function is disabled. Otherwise, if
the the inverter does not receive any valid message during this
interval, it assumes the action that has been programmed at P313.
P313 0...3
Serial Interface [ 2 ]
Watchdog Action 1
P314 0.0...99.9
Serial Interface [ 0.0 – Disable
Watchdog Timeout Function]
0
It sets the type of the protocol for the serial communication.
The serial interface can be configued for two distinct protocols:
WEG and Modbus-RTU.
The WEG protocol is described in Item 8.21 and is selected
by setting P312=0.
The Modbus-RTU protocol, described in item 8.22 has nine
predefined formats, as shown in table below:
P312
1
2
3
4
5
6
7
8
9
Rate (bps)
9600
9600
9600
19200
19200
19200
38400
38400
38400
Parity
-
Odd
Even
-
Odd
Even
-
Odd
Even
P312
(1)
0...9
Serial Interface [ 0 - WEG Protocol ]
1