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Offline auto tuning (Pr. 80 to Pr. 96)
(3) Monitoring during execution
When the parameter unit (FR-PU04V) is used, the Pr. 96 value is displayed during tuning on the main monitor as
shown below. When the control panel (FR-DU04-
1) is used, the same value as on the PU is only displayed.
When Pr. 96 = 1
• Parameter unit (FR-PU04V) main monitor
• Control panel (FR-DU04-
1) display
(4) Ending the offline auto tuning
1) Confirm the Pr. 96 value.
• Normal end: "3" or "103" is displayed.
• Error end: "9", "91", "92" or "93" is displayed.
• Forced end: "8" is displayed.
2) When tuning ended normally
For PU operation, press . For external operation, turn off the start signal (STF or STR) once.
This operation resets the offline auto tuning and the PU's monitor display returns to the normal indication.
(Without this operation, next operation cannot be started.)
Do not change the Pr. 96 setting after completion of tuning.
If the Pr. 96 setting is changed, tuning data is made invalid.
If the Pr. 96 setting is changed, tuning must be performed again.
3) When tuning was ended due to an error
Offline auto tuning did not end normally. (The motor constants have not been set.) Reset the inverter and start
tuning all over again.
4) Error display definitions
No connection with motor will also result in "93" error.
1. Setting 2. Tuning in progress 3. Completion
4. Error-activated end
(for inverter trip)
Display
1. Setting 2. Tuning in progress 3. Completion
4. Error-activated end
(for inverter trip)
Displayed
value
REMARKS
• Offline auto tuning time (factory setting)
1: No-rotation mode: Approx. 25s
2: Rotation mode: Approx. 40s
(Offline auto tuning time varies with the acceleration and deceleration time settings as indicated below.
Offline auto tuning time = acceleration time + deceleration time + approx. 30s)
Error
Display
Error Cause Remedy
9 Inverter trip Make setting again.
91 Current limit (stall prevention) function was activated. Increase acceleration/deceleration time. Set "1" in Pr. 156.
92 Converter output voltage reached 75% of rated value. Check for fluctuation of power supply voltage.
93 Calculation error Check the motor wiring and make setting again.
STOP PU
1
FWD PU
2
STF
TUNE
STOP PU
3
STF
TUNE
COMPLETION
STOP PU
9
STF
TUNE
ERROR
STOP
RESET