P0314 - Serial Watchdog; P0316 - Serial Interface Status - WEG bacnet CFW701 User Manual

0 = Inactive
1 = Disable via Run/Stop
2 = Disable via General Enable
3 = Change to Local
4 = Change to Local keeping
commands and reference
5 = Causes a Fault
The following events are considered communication errors:
Serial communication (RS485):
A128 alarm/F228 fault: Serial communication timeout

The actions described in this parameter are executed by means of the automatic writing of the selected actions
in the respective bits of the interface control words. Therefore, in order that the commands written in this
parameter be effective, it is necessary that the device be programmed to be controlled via the used network
interface (with exception of option "Causes a Fault", which blocks the equipment even if it is not controlled by
network). This programming is achieved by means of parameters P0220 to P0228.
P0314 – SERIAL WATCHDOG
Range: 0.0 to 999.0s
Properties:
CFG
Access groups via HMI:
Description:
It allows programming a time limit for the detection of serial interface communication error. If the frequency
inverter remains without receiving valid telegrams longer than the time programmed in this parameter, it will be
considered that a communication error has occurred, the alarm A128 will be showed on the HMI and the option
programmed in P0313 will be executed.
After being powered up, the frequency inverter starts counting this time from the first received valid telegram.
The value 0.0 disables this function.
P0316 – SERIAL INTERFACE STATUS
Range:
0 = Inactive
1 = Active
2 = Watchdog error
Properties: RO
Access groups via HMI:
Description:
It allows identifying whether the serial communication presents errors.
Options
0 = Inactive
1 = Active
2 = Watchdog error
Table 4.1: P0313 options
Options
No action is taken and the drive remains in the existing status.
A stop command with deceleration ramp is executed and the
motor stops according to the programmed deceleration ramp.
The drive is disabled by removing the General Enabling and the
motor coasts to stop.
The drive commands change to Local.
The drive commands change to Local, but the status of the
enabling and speed reference commands received via network
are kept, providing that the drive has been programmed to use in
Local mode the commands via HMI and speed reference via HMI.
Instead of an alarm, the communication error causes a drive fault,
so that a drive fault reset becomes necessary in order to restore
normal operation.
NET
NET
Table 4.2: P0316 options
Not used for CFW701.
Interface RS485 ativa.
The serial interface is active, but a serial communication error has been
detected - A128 alarm/F228 fault.
Inverter Programming
Description
Description
Default: 0.0
Default: -
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