Mitsubishi Electric 800 Series Manual page 118

• The displays/indicator on the operation panel (FR-DU08), the parameter unit (FR-PU07), and the LCD operation panel (FR-
LU08) will change as shown below.
Status Parameter unit (FR-PU07) display
Setting
During tuning
Normal
completion
• When encoder position tuning ends, press
turn OFF the start signal (STF signal or STR signal).
This operation resets encoder position tuning, and the PU's monitor display returns to the normal indication. (Without this
operation, next operation cannot be started.)
NOTE
• The encoder position tuning data is stored in Pr.1105 (Pr.887) until encoder position tuning is performed again.
However, performing all parameter clear resets the tuning data.
• If encoder position tuning has ended in error (see the table below), tuning data has not been set. Perform an inverter reset and
restart tuning.
Pr.373 (Pr.871)
setting
8 Forced end
9 Inverter protective function operation
93 The motor or the encoder is not connected.
• When tuning is ended forcibly by pressing
end properly. (The tuning data have not been set.)
Perform an inverter reset and restart tuning.
• When the protective function (Encoder phase fault (E.EP)) is activated during tuning, check the wiring of the motor and the
encoder, Pr.359 (Pr.852) setting, and then perform tuning again.
• When tuning ends properly, the counter value of the offset between the motor home magnetic pole position and the encoder
home position is written in Pr.1105 (Pr.887).
3
Polarity of frequency command under dancer control
The inverter can be operated even when the polarity of the frequency command is negative under dancer control.
Pr. Name
73
Analog input selection
T000
READ:List
TUNE
1
STOP PU
TUNE
2
STF FWD PU
TUNE 3
COMPLETION
STF STOP PU
Error cause
Initial value Setting range
0 to 7
1
10 to 17
Operation panel (FR-DU08) display/
indicator
Blinking
on the operation panel during PU operation. In the external operation mode,
Set Pr.373 (Pr.871) = "1" and try tuning again.
Identify and remove the cause of the protective function
activation, and make the setting again.
Check the wiring of the motor and the encoder, the brake
opening, and make the setting again.
or turning OFF the start signal (STF or STR) during tuning, tuning does not
The polarity reversible operation is disabled when the PID
manipulated amount is added to the main speed command.
The polarity reversible operation is enabled when the PID
manipulated amount is added to the main speed command.
5
LCD operation panel (FR-LU08) display
AutoTune 12:34
TUNE
--- STOP PU
PREV NEXT
AutoTune 12:34
TUNE
STF FWD PU
PREV NEXT
AutoTune 12:34
TUNE
Completed
STF STOP PU
PREV NEXT
Corrective actions
Description
BCN-C22005-906
1
2
3