Orientation Control; Wiring Example - Mitsubishi Electric FR-A8APR Instruction Manual

4

ORIENTATION CONTROL

This function is used with a resolver installed to the spindle of a machine tool, etc. to allow a rotary shaft to be stopped at the
specified position (oriented).
For the details of the parameters used for orientation control, refer to the Instruction Manual (Detailed) of the inverter.
4.1

Wiring example

MCCB MC
Three-phase
AC power
supply
Forward rotation start
Reverse rotation start
Orientation command
Contact input common
V/F V/F V/F
Inverter
R/L1 U
S/L2 V
W
T/L3
Earth
STF
(Ground)
FR-A8APR
STR
R1
∗1
X22
R2
SD
S2
∗2
ORA
S4
ORM
∗2
S1
SE
S3
SD
CM
FR-A8AX
∗4
X15
X14
X1
X0
DY
Magnetic flux Vector Vector Vector
Magnetic flux Magnetic flux
U
V
M
W
E

Use Pr.178 to Pr.189 (input terminal function
R1
selection) to assign the function to any of
R2
terminal.
Refer to the Instruction Manual (Detailed) for
S2
details of Pr.178 to Pr.189 (input terminal
S4 function selection).

Use Pr.190 to Pr.196 (output terminal function
Resolver
S1
selection) to assign the function to any of
terminal.
S3
∗3
Refer to the Instruction Manual (Detailed) for
details of Pr.190 to Pr.196 (output terminal
function selection).

Connect the encoder so that there is no
looseness between the motor and motor shaft.
Speed ratio should be 1:1.

When a stop position command is input from
outside, a plug-in option FR-A8AX is necessary.
Refer to the Instruction Manual (Detailed) for
details of external stop position command.
ORIENTATION CONTROL
4
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