Delta VFD7A5ME21ANNAA - Page 382

Chapter 14 Fault Codes and DescriptionsME300
14-19
ID No. Display on LCM Keypad Fault Name Fault Descriptions
56
Illegal data value
(CE3)
Data value is illegal.
Action and Reset
Action level When the data length is too long.
Action time Immediately act
Fault treatment parameter N/A
Reset method Manual reset
Reset condition Immediately reset
Record No
Cause Corrective Actions
Incorrect communication
command from the upper unit
Check if the communication command is correct.
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 degree
for effective anti-interference performance.
Different communication setting
from the upper unit
Check if the setting for Pr.09-02 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.
ID No. Display on LCM Keypad Fault Name Fault Descriptions
57
Data is written to
read-only address
(CE4)
Data is written to read-only address.
Action and Reset
Action level When the data is written to read-only address.
Action time Immediately act
Fault treatment parameter N/A
Reset method Manual reset
Reset condition Immediately reset
Record No
Cause Corrective Actions
Incorrect communication
command from the upper unit
Check if the communication command is correct.
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 degree
for effective anti-interference performance.
Different communication setting
from the upper unit
Check if the setting for Pr.09-02 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.
ID No. Display on LCM Keypad Fault Name Fault Descriptions
58
Modbus
transmission time-out
(CE10)
Modbus transmission time-out occurs.
Action and Reset
Action level When the communication time exceeds the detection time for Pr.09-03 time-out.
Action time Pr.09-03
Fault treatment parameter
Pr.09-02
0: Warn and continue operation
1: Warn and ramp to stop
2: Warn and coast to stop
3: No warning and continue operation
Reset method Manual reset
Reset condition Immediately reset
Record Yes