3-24   
Please follow the steps below to use the Error Alarm History Parameters to inquire the past nine 
Error Alarms. 
Steps 
Operation 
Key 
LED Display Screen 
after Operation 
Description 
1 
Turn on 
Power
 
 
When the power is turned on, Enter the 
Status 
Display Screen
. 
2 
 
 
Press MODE Key three times to enter the 
Error 
Alarm History Parameter
.
 
3 
 
 
Press UP Key one time, to select the 
Previous first 
Alarm History
 item, two LEDS on the right side 
display the 
Alarm Number
 of 003 (Motor Overload).
4 
 
 
Press UP Key one time, to select the 
Previous second 
Alarm History
 item, two LEDS on the right side 
display the 
Alarm Number
 of 001 (Power Supply 
Voltage Too Low).