Mitsubishi Electric FR-A720-0.4K Instruction Manual page 48

• Position control
Vector control dedicated motor (SF-V5RU, SF-THY), 12V complementary
Positioning unit
MELSEQ-Q QD75P1
CLEAR COM
PULSE COM
RDY COM
Torque limit command
*1 The pin number differs according to the encoder used.
Speed control, torque control and position control by pulse train input could be normally performed with or without
connecting Z phase.
*2 Connect the encoder so that there is no looseness between the motor and motor shaft. Speed ratio should be 1:1.
*3 Earth (Ground) the shielded cable of the encoder cable to the enclosure with a P-clip, etc. (Refer to page 38.)
*4 For the complementary, set the terminating resistor selection switch to OFF position. (Refer to page 34.)
*5 A separate power supply of 5V/12V/15V/24V is necessary according to the encoder power specification.
Make the voltage of the external power supply the same as the encoder output voltage, and connect the external power
supply between PG and SD.
*6 For terminal compatibility of the FR-JCBL, FR-V7CBL and FR-A7AP, refer to page 36.
*7 For the fan of the 7.5kW or less dedicated motor, the power supply is single phase. (200V/50Hz, 200 to 230V/60Hz)
*8 Assign OH (external thermal input) signal to the terminal CS. (Set "7" in Pr. 186 )
Connect a 2W1kΩ resistor between the terminal PC and CS (OH). Install the
resistor pushing against the bottom part of the terminal block so as to avoid a
contact with other cables.
Refer to page 231 for details of Pr. 186 CS terminal function selection.
*9 Assign the function using Pr. 178 to Pr. 184, Pr. 187 to Pr. 189 (input terminal function
selection).
*10 When position control is selected, terminal JOG function is invalid and simple
position pulse train input terminal becomes valid.
*11 Assign the function using Pr. 190 to Pr. 194 (output terminal function selection).
Three-phase
AC power supply
MCCB MC
Three-phase
AC power
supply
FLS
RLS
DOG
STOP
Forward stroke end
Reverse stroke end
Pre-excitation/servo on
Clear signal
CLEAR
Pulse train
PULSE F
Sign signal
PULSE R
24VDC power supply
COM
Preparation ready signal
READY
(+)
( ± 10V)
(-)
Connection of motor with encoder (vector control)
MCCB MC OCR
SF-V5RU, SF-THY
*7 A
B
C
R/L1 U U
Inverter
S/L2 V V
W W
T/L3
E
Earth
(ground)
PC
External thermal
2W1kΩ G1
CS(OH)
relay input *8
G2
SD
FR-A7AP
STR
*1
PA1 PA1
A
LX *
9 PA2 PA2
B
CLR
*9
PB1 PB1 C
JOG
*10
PB2 PB2 D
Differential
NP *
9
PZ1 PZ1 F
line driver
PC
PZ2 PZ2 G
SE
Complementary PG S
Terminating SD
R
resistor
PG
ON
RDY
*11
SD
*3
12VDC
5
(-)
*4 *6 (+)
power supply
OFF
1
FAN
IM
Thermal
protector
Encoder
*2
*5
CS(OH)
PC
Control circuit
terminal block
Resistor (2W1kΩ)
2
37