Mitsubishi Electric FR-A700 Instruction Manual page 449

Parameter
Connection example
Three-phase
Forward rotation start
Reverse rotation start
Orientation command
Contact input common
Fig. 6-113: Connection example
The pin number differs according to the encoder used.
Use Pr. 178 to Pr. 189 (input terminal function selection) to assign the function to any of
terminal. (Refer to section 6.14.1).
Use Pr. 190 to Pr. 196 (output terminal function selection) to assign the function to any of
terminal. (Refer to section 6.14.5).
Connect the encoder so that there is no looseness between the motor and motor shaft.
Speed ratio should be 1:1.
Earth (Ground) the shielded cable of the encoder cable to the enclosure with a P clip, etc.
(Refer to page 3-41).
For the differential line driver, set the terminating resistor selection switch to on position
(initial status) to use. (Refer to page 3-35.) Note that the terminating resistor switch should
be set to off position when sharing the same encoder with other unit (NC, etc) or a terminating
resistor is connected to other unit.
For the complementary, set the switch to off position.
For terminal compatibility of the FR-JCBL and FR-A7AP, refer to page 3-37.
A separate power supply of 5V/12V/15V/24V is necessary according to the encoder power
specification.
When performing encoder feedback control and vector control together, an encoder and
power supply can be shared.
SWhen a stop position command is input from outside, a plug-in option FR-A7AX is
necessary. Refer to page 6-271 for external stop position command.)
NOTE
In the above diagram a connection example for sink logic is shown.
FR-A700 EC
Inverter
AC power
supply
FR-A7AX
SF-JR motor with
encoder
Earth
FR-A7AP
Differential
Compli-
mentary
Terminating
resistor
ON
OFF
5VDC power supply
Motor brake and stop operation
For complementary type
M
Inverter
3~
FR-A7AP
Encoder
Differential
Compli-
mentary
Terminating
resistor
ON
OFF
12VDC power supply
M
3~
Encoder
I001573E
6 - 269