Mitsubishi Electric FR-A820-00046 Instruction Manual page 727

Parameters
Motor end orientation connection example
MCCB
Three-phase
AC power
supply
Forward rotation start
Reverse rotation start
Orientation command
Contact input common
Fig. 5-247: Motor end orientation connection example
The power supply of the fan for a 7.5 kW or lower dedicated motor is single phase. (200 V/50 Hz,
200 to 230 V/60 Hz)
The pin number differs according to the encoder used.
Use Pr. 178 to Pr. 189 (input terminal function selection) to assign the function to a terminal. (Refer
to page 5-439.)
Use Pr. 190 to Pr. 196 (output terminal function selection) to assign the function to a terminal. (Refer
to page 5-378.)
Connect the encoder so that there is no looseness between the motor and motor shaft. Speed
ratio must be 1:1.
Connect the shield of the encoder cable to the enclosure using a tool such as a P-clip. (Refer to
page 2-81.)
For the differential line driver, set the terminating resistor selection switch to the ON position (initial
status) to use. (Refer to page 2-73.)
Note that the terminating resistor switch should be set to the OFF position when sharing the same
encoder with another unit (NC, etc.) or when the terminating resistor is connected to another unit.
For the complementary, set the switch to the OFF position.
For terminal compatibility of FR-JCBL, FR-V5CBL and FR-A8AP, refer to page 2-77.
A separate power supply of 5 V/12 V/15 V/24 V is necessary according to the encoder power
specification. Make the voltage of the external power supply same as the encoder output voltage,
and connect the external power supply between PG and SD. When performing encoder feedback
control and vector control together, an encoder and power supply can be shared.
When a stop position command is input from outside, a plug-in option FR-A8AX is required. Refer
to page 5-527 for the external stop position command.
FR-A800
MC
Inverter
R/L1 U
S/L2 V
W
T/L3
STF
FR-A8AP
STR
PA1
X22
PA2
PC
PB1
ORA
PB2
ORM
PZ1
Differential
SE PZ2
PC
PG
X15 Comple-
SD
mentary
X14
PG
Terminating
resistor ON SD
X1
X0
DY
OFF
FR-A8AX
SF-JR motor with encoder
U
V
Three-phase
IM
W
E
Earth (Ground)
C
R
A
N
Encoder
B
P
H
K
5 V DC power
(-)
(+)
supply
(A) Application parameters
For complementary type (SF-V5RU)
(SF-V5RU)
MCCB
MC OCR
A
B
AC power
C
supply
U U
Inverter
V V
W W
E
External
Earth (Ground)
thermal
SD
2 W 1 k
relay input
CS(OH) G1
G2
PC
FR-A8AP
PA1 A
PA2 B
PB1 C
PB2 D
Differential
PZ1 F
PZ2 G
PG S
Complementary
SD R
Terminating
resistor ON PG
SD
(+) (-)
OFF
SF-V5RU
FAN
IM
Thermal
relay
protector
Encoder
12 V DC power
supply
I002682E_G
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