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This manual describes the application board SJ-FB for a SJ300 series inverter.
This SJ-FB board, assembled in a SJ300 inverter, detected the rotation speed of a mo-
tor with the encoder and feedback the motor speed to suppress speed fluctuations for
highly accurate operation.
This SJ-FB board can also be used for controlling motor stop positions by entering 90
phase difference pulses, as well as for synchronized operation, orientation function, and
external torque limit input function.
LAC
Position
control
PCLR
POK
ORT
Orientation
control
STAT
NOTE: Not vector control (ACR control)
Speed
LAD
control
Speed deviation
Zero speed
excessive signal
detection
DSE
Figure 2-1 Function Block Diagram
Chapter 2
Inside
setting
Torque
Current
limiter
control
Turn
several
detection
Position
detection
ZS
2
OUTLINE OF SJ-FB
Inverter main body
TH
PWM
SJ-FB
EAP,EAN
EBP,EBN
EZP,EZN
EP5,EG5
AP,AN
BP,BN
SAP,SAN
SBP,SBN
M
EC
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