Yaskawa Portable Control Display Unit User Manual
Page 52
 
6
TEST MENU
46
Self-Tune
01/22/96
•
Press the ENT key. The PCDU now 
displays:
•
Press the ENT key.
Once the Self-Tune function has been
accessed, the PCDU will display the
following message:
This message is intended to act as an
interlock to make certain that the operator
is aware that the LOAD PARAMETER
TEST function is about to begin.
•
Press the F3 key. One of three 
displays will result.
◊
If the NVRAM PROTECTION 
switch is in the “ON” position, the 
PCDU will flash the following 
message:
•
In this case, press the ESC key. 
Move the NVRAM PROTECTION 
switch to the “OFF” position, and 
restart the Self-Tune procedure.
◊
If the Power Conversion Unit had 
declared a severe fault, the PCDU 
would display the following 
message:
NVRAM protected
(press ESC)
Press F3 to 
measure parameters
PCU SELF-TUNE
(Press ENT) T997