Mitsubishi Electric FR-A820-00046 (0.4K), Instruction Manual

Page: 110 / 1218

Connection of motor with encoder (vector control) Installation and wiring
2 - 80
●
Position control
The pin number differs according to the encoder used.
Speed, control, torque control, and position control by pulse train input are available with or
without the Z-phase being connected.
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.
(Refer to page 2-66.)
For the complementary, set the terminating resistor selection switch to OFF position.
(Refer to page 2-58.)
$
A separate power supply of 5 V/12 V/15 V/24 V is necessary according to the encoder power
specification.
When the encoder output is the differential line driver type, only 5 V can be input.
Make the voltage of the external power supply the same as the encoder output voltage, and
connect the external power supply across PG and SD.
%
For terminal compatibility of the FR-JCBL, FR-V7CBL, and FR-A8AP, refer to page 2-77.
&
For the fan of the 7.5 kW or lower dedicated motor, the power supply is single phase.
(200 V/50 Hz, 200 to 230 V/60 Hz)
'
Connect the recommended 2 W, 1 kΩ resistor between the terminal PC and OH.
(Recommended product: MOS2C102J 2W1kΩ by KOA Corporation)
Insert the input line and the resistor to a 2-wire blade terminal, and connect the blade terminal to
the terminal OH. (For the recommended 2-wire blade terminals, refer to page 2-53.)
Insulate the lead wire of the resistor, for example by applying a contraction tube, and shape the
wires so that the resistor and its lead wire will not touch other cables. Caulk the lead wire securely
together with the thermal protector input line using a 2-wire blade terminal. (Do not subject the
lead wire's bottom area to an excessive pressure.)
I002393E_G
Fig. 2-56: Vector control dedicated motor (SF-V5RU, SF-THY), 12 V complementary
1
5
(+)
(-)
MCCB
R/L1
S/L2
T/L3
∗3
PA1
FR-A8AP
PA2
PB1
PB2
PZ1
PZ2
PG
PG
SD
SD
STF
STR
LX
CLR
CLEAR
JOG
NP
∗1
SF-V5RU, SF-THY
U
V
W
U
A
B
C
V
W
E
G1
G2
A
MCCB MC
B
C
D
F
G
S
R
RH(OH)
PC
SD
(+) (-)
PULSE F
PULSE R
PULSE COM
CLRCOM
RDYCOM
READY
PC
RDY
SE
FLS
RLS
DOG
STOP
COM
MC
Three-phase
AC power
supply
Forward stroke end
Torque limit command
(±10 V)
Inverter
Earth
(ground)
12 V DC
power supply
$
Differential
line driver
Compli-
mentary
Terminat-
ing resis-
tor ON
%
IM
PLG
Positioning unit
MELSEC-Q QD75P
첸
/N/QD75P
첸
MELSEC-L LD75P
첸
Preparation ready signal
*
&
OFF
24 V DC power supply
Reverse stroke end
Pre-excitation/servo on
Clear signal
Pulse train
Sign signal
Three-phase
AC power
supply
External thermal
protector relay
input
'
Thermal
protector
*
*
(
)
FAN
OCR
2 W1 k
Ω