Position control
Positioning unit
MELSEC-Q QD75P[ ]N/QD75P[ ]
MELSEC-L LD75P[ ]
PULSE F
PULSE R
CLRCOM
PULSE COM
RDYCOM
Torque limit command
Connect the encoder so that there is no looseness between the motor and motor shaft. Speed ratio must be 1:1.
Earth (ground) the shield of the encoder cable to the enclosure using a tool such as a P-clip.
Assign the function using Pr.178 to Pr.184, Pr.187 to Pr.189 (input terminal function selection).
When position control is selected, terminal JOG function is invalid and simple position pulse train input terminal becomes valid.
Assign the function using Pr.190 to Pr.194 (output terminal function selection).
24
VECTOR CONTROL
MCCB
Three-phase
AC power
supply
FLS
RLS
DOG
STOP
Forward stroke end
Reverse stroke end
Pre-excitation/servo on
Clear signal
CLEAR
Pulse train
Sign signal
24 VDC power supply
COM
Preparation ready signal
READY
(+)
(-)
( 10 V)
MC
R/L1
U
Inverter
S/L2
V
T/L3
W
STF
FR-A8APS
STR
DT+
LX
∗3
DT-
∗3
CLR
CK+
∗4
JOG
CK-
∗3
NP
UP
PC
UN
SE
∗5
RDY
5
1
U
V
M
W
E
Earth
(ground)
DATA
DATA
CLOCK
CLOCK
Encoder
Up
0v
∗1
∗2