Mitsubishi Electric 800 Series Instruction Manual page 152

5.2.3 Selecting the PM motor control
PM PM PM
 Initializing the parameters required for the PM motor control (Pr.998)
• The PM parameter initialization and the offline auto tuning enable the operation with a PM motor.
Pr. Name Initial
value
998 PM parameter 0
E430 initialization
• When Pr.998="8009 or 9009", the monitor is displayed and the frequency is set using the motor rotations per minute. To
use frequency to display or set, set Pr. 998="8109 or 9109".
• Set Pr.998="0" to change the PM motor control parameter settings to the parameter settings required to drive an induction
motor.
NOTE
• Make sure to set Pr.998 before setting other parameters. If the Pr.998 setting is changed after setting other parameters,
some of those parameters will be initialized too. (Refer to the "List of the target parameters for the motor parameter
initialization".)
• To change back to the parameter settings required to drive an induction motor, perform parameter clear or all parameter
clear
• If the setting of Pr.998 PM parameter initialization is changed between "8009, 9009 (rotations per minute)"  "8109,
9109 (frequency)", the target parameters are respectively set to their initial values. The purpose of Pr.998 is not to change
the display units. Use Pr.144 Speed setting switchover to change the display units between rotations per minute and
frequency. Pr.144 enables switching of display units between rotations per minute and frequency without initializing the
parameter settings.
• Example) Changing the Pr.144 setting between "6" and "106" switches the display units between frequency and rotations
per minute.
• The PM parameter initialization (Pr.998) changes parameter settings for the first motor. When a PM motor is used as the
second motor, parameters for the second motor must be set individually.
Setting
range
0 Parameter settings for an induction motor
(frequency)
8009 The parameters settings required to drive a PM
motor are set. (rotations per minute) (after tuning)
8109 The parameters settings required to drive a PM
motor are set. (frequency) (after tuning)
9009 The parameters settings required to drive an SPM
motor are set. (rotations per minute) (after tuning)
9109 The parameters settings required to drive an SPM
motor are set. (frequency) (after tuning)
Description
The parameter settings required to
drive an induction motor are set.
The parameters settings required
to drive a PM motor are set.
(Set Pr.71 Applied motor and
perform offline auto tuning in
advance. (Refer to
The parameters settings required
to drive an SPM motor are set.
(Set Pr.71 Applied motor and
perform offline auto tuning in
advance. (Refer to
5. PARAMETERS
5.2 Control method
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