Mitsubishi Electric FR-E800 Series Instruction Manual page 412

• Offline auto tuning is not performed correctly when the surge voltage suppression filter (FR-ASF-H/FR-BMF-H) is inserted
between the inverter and motor. Be sure to remove them before performing tuning.
 Setting
1.
Set "11" in Pr.96 Auto tuning setting/status.
2.
Set the rated motor current (initial value is inverted rated current) in Pr.9 Electronic thermal O/L relay. (Refer to
page 238.)
3.
Set Pr.71 Applied motor according to the motor to be used.
Mitsubishi Electric standard efficiency motor
Mitsubishi Electric high-efficiency motor
Mitsubishi Electric constant-torque motor
Mitsubishi Electric high-performance energy-
saving motor
Mitsubishi Electric geared motor
Other manufacturer's standard motor
Other manufacturer's constant-torque motor
 Performing tuning
• Before performing tuning, check the monitor display of the operation panel if the inverter is in the state ready for tuning. The
motor starts by turning ON the start command while tuning is unavailable.
• In the PU operation mode, press the RUN key on the operation panel.
In the External operation, turn ON the start command (STF signal or STR signal). Tuning starts. (At this time, excitation
noise occurs.)
NOTE
• It takes about 10 seconds for tuning to complete. (The time depends on the inverter capacity and motor type.)
• Satisfy the required inverter start conditions to start offline auto tuning. For example, stop the input of the MRS signal.
• To force tuning to end, use the MRS or RES signal or the STOP/RESET key on the operation panel.
(Turning OFF the start signal (STF signal or STR signal) also ends tuning.)
• During offline auto tuning, only the following I/O signals are valid (initial value).
Input terminals <effective signals>: MRS, RES, STF, STR, S1, and S2
Output terminals: RUN, FM, AM, ABC, and SO
• When the rotation speed and the output frequency are selected for terminals FM and AM, the progress status of offline auto
tuning is output in 15 steps from FM and AM.
• Do not perform ON/OFF switching of the Second function selection (RT) signal during offline auto tuning. Auto tuning will not
be performed properly.
• Since the RUN signal turns ON when tuning is started, pay close attention especially when a sequence which releases a
mechanical brake by the RUN signal has been designed.
• When executing offline auto tuning, input the operation command after switching ON the main circuit power (R/L1, S/L2, T/L3)
of the inverter.
• While Pr.79 Operation mode selection = "7", turn the PU operation external interlock (X12) signal ON to tune in the PU
operation mode.
Motor
SF-JR
SF-JR 4P 1.5 kW or lower
SF-HR
Others
SF-JRCA 4P
SF-HRCA
Others (SF-JRC, etc.)
SF-PR
GM-[]
—
—
Pr.71 setting
0 (3)
20 (23)
40 (43)
0 (3)
10 (13)
50 (53)
10 (13)
70 (73)
1800 (1803)
0 (3)
10 (13)
15. (A) Application Parameters
15.9 Offline auto tuning for a frequency search
11
12
13
14
15
16
17
18
19
20
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