Parameter Settings For A Motor With Encoder - Mitsubishi Electric 800 Series Instruction Manual

Parameter settings for a motor with encoder

2.9
Parameter settings for a motor with
encoder
Parameter for the encoder (Pr.359, Pr.369, Pr.851, Pr.852)
• Set the encoder specifications.
Pr. Name
359 852 Encoder rotation
C141 C241 direction
369 851 Number of
C140 C240 encoder pulses
The above parameters can be set when a vector control compatible option is mounted.
• The following table shows parameters to be set according to the vector control compatible option to be used.
Item
FR-A8APA parameter
Encoder/Resolver
Pr.359
rotation direction
Number of detector
Pr.369
pulses
Parameter settings for the motor under vector control
• Values in
Motor name
Standard motor
(thermal characteristic: standard)
Constant-torque motor
(thermal characteristic: constant
torque)
Vector control dedicated motor
Other manufacturer's standard
motor
Other manufacturer's constant-
torque motor
PM motor

Offline auto tuning is required (Refer to

Set this parameter according to the motor.

Use the thermal protector input provided with the motor.
64
INSTALLATION AND WIRING
Initial Setting
value range
Set when using a motor for which forward
0
rotation (encoder) is clockwise (CW) viewed
from the shaft
100
1
Set when using a motor for which forward
1
rotation (encoder) is counterclockwise (CCW)
viewed from the shaft
101
Set the number of encoder pulses output.
1024 0 to 4096
Set the number of pulses before it is multiplied by 4.
FR-A8AP/FR-A8AL/
FR-A8APR parameter FR-A8APS parameter
― (fixed 1024 pulses)
indicate initial values.
Pr.9
Electronic
thermal O/L
relay
Rated motor
0
current
Rated motor
1
current
0 30

Rated motor
0(3)
current
Rated motor
1(13)
current
Refer to the instruction manual of the FR-A8APR.
page 426.)
CW
CCW
— (obtained via
communication from the
encoder)
Pr.71 Pr.80
Applied Motor
motor capacity
Motor Number of
capacity motor poles
Motor
4
capacity
Motor
4
capacity
Motor Number of

capacity motor poles
Motor Number of

capacity motor poles
Description
Set for the operation at 120 Hz or
less.
Set for the operation at a
frequency higher than 120 Hz.
Set for the operation at 120 Hz or
less.
Set for the operation at a
frequency higher than 120 Hz.
FR-A8TP parameter
Pr.852
Pr.851
Pr.81 Pr.359/Pr.852
Number of Encoder
motor rotation
poles direction
1
1
1


Pr.369/Pr.851
Number of
encoder
pulses
1024
1024
2048

