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8   Operation
OMNUC G5-series (Pulse-train Input Type) AC Servomotors and Servo Drives User’s Manual
8-4  Mode Setting
8
8-4-4  Parameter Write Mode
The following operation must be performed so that set values changed in Parameter Setting Mode are 
saved to EEPROM.
1
Save the changed setting to memory.
2
Return to the parameter write mode display.
Precautions for Correct UsePrecautions for Correct Use
• Write the data again if a write alarm occurs. If a write alarm persists, the Servo Drive may be 
faulty.
• Do not turn OFF the power supply while the Servo Drive is writing to the EEPROM. If the 
power supply is cut off, incorrect data may be written. In case that this happens, set all the 
parameters again and retry writing the data.
8-4-4 Parameter Write Mode
Key 
operation
Display example Description
Press   key to switch to the parameter write mode display. 
Press   key to switch to the parameter write mode display. 
Press and hold   key for 5 seconds or more (until   appears). 
The number of dashes on the display increases.
The parameter write process starts. (This display appears only 
momentarily.)
This indicates a normal completion. Other than this, the follwing displays 
may be shown   and  . 
 also indicates a normal completion, but it means that some of 
the changed parameters are enabled only after the system is restarted. 
Turn OFF and then ON the power supply again.
 indicates a write alarm. Write the data again.
Key 
operation
Display example Description
Press   key to return to the parameter write mode display.