Mitsubishi Electric 800 Series Instruction Manual page 88

• To enable the control method and the control mode selected in Pr.800 (Pr.451), the condition to start operation must be
satisfied as shown in the following table. Otherwise the operation does not start due to the setting error (SE) alarm when
the start signal is input.
Pr.800 Pr.451
Control method
setting setting
Real sensorless vector control /
10
PM sensorless vector control
11
Real sensorless vector control
12
19 — PM sensorless vector control test operation
Advanced magnetic flux vector
20
control
40 (initial
40 V/F control
value)
9999
— (initial Control method and control mode selected in Pr.800 (provided that they are selectable with Pr.451)
value)
*1 The control method depends on the motor selected in Pr.71 (Pr.450): Real sensorless vector control for the induction motor, and PM sensorless
vector control for the PM motor.
*2 Operation can start regardless of the setting.
 Automatic parameter setting by changing the Pr.800 setting
• The Pr.22 setting is automatically changed when the control method is changed.
• When the control method is changed from V/F control or Advanced magnetic flux vector control to Real sensorless vector
control or PM sensorless vector control, the Pr.22 setting is automatically changed as follows.
Pr. Setting value before change
22 150% (initial setting)
• When the control method is changed from Real sensorless vector control or PM sensorless vector control to V/F control
or Advanced magnetic flux vector control, the Pr.22 setting is automatically changed as follows (only for the ND rating in
the FR-E820-0175(3.7K) or lower, FR-E840-0095(3.7K) or lower, FR-E860-0061(3.7K) or lower)
Pr. Setting value before change
22 200%
 PM sensorless vector control test operation (Pr.800 = "19")
• A test operation for speed control is available without connecting a motor to the inverter.
The speed calculation changes to track the speed command, and such speed changes can be checked on the operation
panel or by outputting it as analog signals to terminal FM or AM.
NOTE
• Since current is not detected and voltage is not output, monitors related to current and voltage such as output current and
output voltage, etc. and output signals do not function.
 I/O signal status during the test operation
• During the test operation, the following signals are disabled.
Input terminal function selection (Pr.178 to Pr.189)
• Brake opening completion (BRI)
• V/F switchover (X18)
• Control mode switchover (MC)
Parameters referred to
Pr.178 to Pr.189 (Input terminal function
Pr.190 to Pr.196 (Output terminal function
 Status of the monitoring during the test operation
○: Enabled
Control mode
Speed control
Torque control
Speed control / torque
control switchover
Speed control
—
Setting value after change
200%
Setting value after change
150% (initial setting)
selection)page 283
selection)page 250
Condition to start operation
Pr.80 (Pr.453),
Pr.81 (Pr.454)
setting
Other than 9999
*2
—
Output terminal function selection (Pr.190 to Pr.196)
• Electronic thermal O/L relay pre-alarm (THP)
• Brake opening request (BOF)
• Start time tuning completion (Y39)
4.1 Changing the control method and mode
MC signal
Pr.71
(Pr.450)
*1
—
—
—
Induction
ON: Torque
motor
control OFF:
Speed control
PM motor —
—
Induction
motor
—
4. Control Method
1
2
3
4
5
6
7
8
9
10
87