Chapter 13 Warning CodesC2000 Plus
1
Communication error 1
(CE1)
RS-485 Modbus illegal function code
When the function code is not 03, 06, 10 and 63
Warning setting parameter
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.
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.09-04 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.
Communication
command error 1
(CK1)
Keypad communication data, illegal function code
(Keypad auto-detect this error and display it.)
When the function code is not 03, 06, 10 and 63
Warning setting parameter
Remove the keypad and then reconnect it to the motor drive.
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.
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