Speed Control - Mitsubishi Electric FR-A720-0.4K Instruction Manual

(5) Wiring

• Speed control

Standard motor with encoder (SF-JR), 5V differential line driver
MCCB
Three-phase
AC power supply
Forward rotation start
Reverse rotation start
Contact input common
Frequency command 3
Frequency setting 2
potentiometer
1/2W1k Ω
1
Torque limit
(+)
command
(-)
( 10V)
• Torque control
Standard motor with encoder (SF-JR), 5V differential line driver
Three-phase
AC power supply
Forward rotation start
Reverse rotation start
Contact input common
Speed limit command
3
Frequency setting 2
potentiometer
1/2W1k Ω
1
Torque command
(+)
(-)
( 10V)
*1 For the fan of the 7.5kW or less dedicated motor, the power supply is single phase. (200V/50Hz, 200 to 230V/60Hz)
*2 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 221 for details of Pr.186 CS terminal function selection.
*3 The pin number differs according to the encoder used.
*4 Connect the encoder so that there is no looseness between the motor and motor shaft. Speed ratio should be 1:1.
*5 Earth (Ground) the shielded cable of the encoder cable to the enclosure with a P clip, etc. (Refer to page 41.)
*6 For the complementary, set the terminating resistor selection switch to off position. (Refer to page 37.)
*7 A separate power supply of 5V/12V/15V/24V is necessary according to the encoder power specification.
When performing orientation control together, an encoder and power supply can be shared.
*8 For terminal compatibility of the FR-JCBL, FR-V7CBL and FR-A7AP, refer to page 38.
Inverter
R/L1 U
S/L2 V
W
T/L3
STF
FR-A7AP
STR
PA1
PA2
SD
PB1
PB2
10
Differential
PZ1
PZ2
2
Complimentary
5
PG
SD
Terminating
resistor ON
PG
1
*5
SD
*8
OFF
*6
MCCB
Inverter
R/L1 U
S/L2 V
T/L3 W
STF
FR-A7AP
STR
PA1
PA2
SD
PB1
PB2
10
Differential
PZ1
2 PZ2
Complimentary
5
PG
SD
Terminating
resistor ON
PG
1
SD
*8
OFF
*6
Connection of motor with encoder (vector control)
SF-JR motor
with encoder
U
AC power supply
V
IM
W
E
Earth
(Ground)
C *3
R
A
N
Encoder
B
P
*4
H
K
5VDC power supply
*7
(+) (-)
SF-JR motor
with encoder
U
AC power supply
V
IM
W
E
Earth
(Ground)
C
*3
R
A
N
Encoder
B
P
*4
H
K
*5
5VDC
(+) (-)
power supply
*7
Vector control dedicated motor
(SF-V5RU), 12V complimentary
MCCB
SF-V5RU
A
*1
Three-phase
B
C
U U
Inverter
V V
W W
E
External
Earth
thermal
Thermal relay
(Ground)
PC
relay input *2
protector
2W1kΩ G1
CS(OH)
G2
SD
FR-A7AP
*3
PA1 A
PA2
B
PB1 C
PB2
D
F
PZ1
Differential
PZ2
G
PG S
Complimentary
SD R
Terminating
resistor
PG
ON
*5
SD
12VDC power supply
*6 *8
(+) (-)
OFF
Vector control dedicated motor
(SF-V5RU), 12V complimentary
MCCB
SF-V5RU
A
*1
Three-phase
B
C
U U
Inverter
V V
W W
E
External
Earth
thermal
Thermal relay
(Ground)
PC
relay input *2
protector
G1
2W1kΩ
CS(OH)
G2
SD
FR-A7AP
*3
PA1 A
PA2 B
C
PB1
PB2 D
F
PZ1
Differential
PZ2 G
PG S
Complimentary
SD R
Terminating
resistor
PG
ON
*5
SD
12VDC power supply
*6 *8
(-)
(+)
OFF
CS(OH)
PC
Control circuit
terminal block
Resistor (2W1kΩ)
FAN
IM
Encoder
*4
*7
FAN
IM
2
Encoder
*4
*7
39