Delta CFP2000 Series, User Manual

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Chapter 13 Warning Codes

CFP2000
13-3
ID No. Display on LCD 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 act
Warning setting 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 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.
Display on LCD Keypad Warning Name Description
Communication data
error (CK3)
Keypad communication data, illegal data value
(Keypad auto-detect this error and display it.)
Action and Reset
Action level When the length of communication data is too long
Action time Immediately act
Warning setting parameter N/A
Reset method Remove the keypad and then reconnect it to the motor drive.
Reset condition Immediately reset
Record N/A
Cause Corrective Actions
Incorrect communication
command from keypad
Keypad and the motor drive don’t communicate properly. It is recommended to
remove the keypad and then reconnect it to the motor drive.
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 keypad
Check if the Baud rate = 19200 bps. Format = RTU8, N, 2.
Disconnection or bad connection
of the cable
Check the cable and replace it if necessary.