Operating Instructions

Warning Codes
Digital Keypad RT-KEYPAD
268 | 443
Cause
Corrective Actions
Communication connection error
SE1: The causes of error are mostly communication problems between the keypad and control
board. Potential causes include communication signal interference and the unacceptable
communication command to the Slave.
Check if the error occurs randomly, or only occurs when copying certain parameters (the error
displays on the upper right corner of the copy page). If you cannot clear the error, please contact
Technical Support.
Keypad error
Control board error
ID No.
Display on LCD Keypad
Warning Name
Description
8
Save error 2
(SE2)
Keypad COPY error 2: parameter writing error
Action and Reset
Action level
SE2 warning occurs when writing the parameters incorrectly at the time you copy parameters to
the drive. For example, you copy the new firmware version with added parameters to the drive
with old firmware version.
Action time
N/A
Warning setting parameter
N/A
Reset method
Manual reset
Reset condition
Immediately reset
Record
N/A
Cause
Corrective Actions
Add new parameters to the new firmware
version.
SE2: In this stage, the copied data has been transmitted to the Slave.
The Slave compares and processes the copied data, and then saves the data to the Data ROM.
During the process, the data error (should be attribution error) may occur, or the data cannot be
saved to EEPROM. At this time, the warning occurs.
Check the status of Data ROM and remove the error causes first.
If you cannot clear the error, please contact Technical Support.
Malfunction caused by interference
Verify the wiring and grounding of the main circuit, control circuit and the encoder for effective
anti-interference performance.
ID No.
Display on LCD Keypad
Warning Name
Description
9
IGBT over-heating warning
(oH1)
The AC motor drive detects IGBT overheating and exceeds the
protection level of oH1 warning. (When Pr.06-15 is higher than the
IGBT overheating protection level, the drive shows oH1 error without
displaying oH1 warning.)
Action and Reset
Action level
Pr.06-15
Action time
oH1 warning occurs when IGBT temperature is higher than Pr.06-15 setting value.
Warning setting parameter
N/A
Reset method
Auto-reset
Reset condition
The drive auto-resets when IGBT temperature is lower than oH1 warning level minus (–) 5°C
Record
N/A