Delta VFD7A5ME21ANNAA User Manual

Chapter 13 Warning CodesME300
13-1
Chapter 13 Warning Codes
ID No. Display on LCM Keypad Warning Name Description
1
Communication error 1
(CE1)
RS-485 Modbus illegal function code
Action and Reset
Action level When the function code is not 03, 06, 10 and 63.
Action time Immediately
Warning treatment parameter N/A
Reset method
“Warning” occurs when Pr.09-02=0 and the motor drive keeps running. The drive
resets automatically when receiving the correct function code.
Reset condition Immediately reset
Record N/A
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 Warning Name Description
2
Communication error 2
(CE2)
RS-485 Modbus illegal data address (00–254 H)
Action and Reset
Action level When the input data address is incorrect.
Action time Immediately
Warning treatment parameter N/A
Reset method
“Warning” occurs when Pr.09-02=0 and the motor drive keeps running. The drive
resets automatically when receiving the correct data address.
Reset condition Immediately reset
Record N/A
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 Warning Name Description
3
Communication error 3
(CE3)
RS-485 Modbus illegal data value
Action and Reset
Action level When the length of communication data is too long.
Action time Immediately
Warning treatment parameter N/A
Reset method
“Warning” occurs when Pr.09-02=0 and the motor drive keeps running. The drive
resets automatically when receiving the correct communication data value.
Reset condition Immediately reset
Record N/A
Cause Corrective Actions
Incorrect communication
command from the upper unit
Check if the communication command is correct.

Delta VFD7A5ME21ANNAA Specifications

General

Brand	Delta
Model	VFD7A5ME21ANNAA
Category	DC Drives
Language	English