Schneider Electric VW3 A3 303 用户手册
19
6. 4. Communication faults
A Modbus fault is triggered if the Modbus card does not receive any Modbus requests at its address within a predefined time period (time
out). All Modbus request types are taken into account (read, write, etc.). The time out is fixed at 10 s (non-modifiable).
The response of the drive in the event of a Modbus communication fault can be configured.
out). All Modbus request types are taken into account (read, write, etc.). The time out is fixed at 10 s (non-modifiable).
The response of the drive in the event of a Modbus communication fault can be configured.
The values of the
[Network fault mgt]
(
CLL)
parameter, which trigger a
[Com. network]
(
CnF)
drive fault, are:
The values of the
[Network fault mgt]
(
CLL)
parameter, which do not trigger a drive fault, are:
The fallback speed can be configured via the
[Fallback speed]
(
LFF)
parameter in the
[1.8 – FAULT MANAGEMENT]
(
FLt-)
menu.
Configuration can be performed using the graphic display terminal or
integrated display terminal using the
integrated display terminal using the
[Network fault mgt]
(
CLL)
parameter in the
[1.8 FAULT MANAGEMENT]
(
FLt-)
menu,
[COM.
FAULT MANAGEMENT]
(
CLL-)
submenu.
RDY
NET
+0.00Hz
0A
COM. FAULT MANAGEMENT
Network fault mgt
: Freewheel
CANopen fault mgt
: Freewheel
Modbus fault mgt
: Freewheel
Code
Quick
Value
Meaning
[Freewheel]
(
YES)
Freewheel stop (factory setting)
[Ramp stop]
(
rMP)
Stop on ramp
[Fast stop]
(
FSt)
Fast stop
[DC injection]
(
dCI)
DC injection stop
Value
Meaning
[Ignore]
(
nO)
Fault ignored
[Per STT]
(
Stt)
Stop according to configuration of
[Type of stop]
(
Stt)
.
[fallback spd]
(
LFF)
Switch to fallback speed, maintained as long as the fault is present and the run command is not disabled.
[Spd maint.]
(
rLS)
The drive maintains the speed at the time the fault occurred, as long as the fault persists and the run
command has not been removed.
command has not been removed.