Chapter 8 Troubleshooting|VP3000
538
Modbus transmission
time-out occurs
(CE10)
Modbus transmission time-out occurs
When the communication time exceeds the detection time for Pr. n1-04 time-out
Fault Treatment Parameter
Setting for Pr. n1-05.
0: Continue OPER
1: Warning & continue OPER
2: Fault & Ramp to Stop
3: Fault & coast to stop
The upper unit does not transmit
the communication command
within Pr. n1-04 setting time
Check if the upper unit transmits the communication command within the setting
time for Pr. n1-04.
Malfunction caused by
interference
Verify the wiring and grounding of the communication circuit. It is recommended
to separate the communication circuit from the main circuit, or wire in 90 degrees
for effective anti-interference performance.
Different communication setting
from upper unit
Check if the setting for Pr. n1-03 is the same as the setting for the upper unit.
Disconnection or bad connection
of the cable
Check the cable and replace it if necessary.