Mitsubishi Electric FR-A800 Series Instruction Manual page 89

 Switches on the FR-A8AP
• Use the encoder type selection switch (SW3) to select the differential line driver or the complementary.
It is initially set to the differential line driver. Switch its position according to the output circuit.
• Use the terminating resistor selection switches (SW1) to select ON/OFF of the internal terminating resistor.
Set the switches ON (initial status) when an encoder output type is differential line driver, and set OFF when
complementary.
ON: With internal terminating resistor (initial status)
OFF: Without internal terminating resistor
NOTE
• Set all switches to the same setting (ON/OFF).
• Set the switches OFF when sharing an encoder with another unit (NC (computerized numerical controller), etc.) having a
terminating resistor under the differential line driver setting.
• Motor and switch setting
Mitsubishi Electric standard motor
with encoder
Mitsubishi Electric high-efficiency
motor with encoder
Mitsubishi Electric constant-torque
motor with encoder
Vector control dedicated motor
Other manufacturer's motor with encoder
*1 Set according to the motor (encoder).
*2 Prepare the power supply (5 V/12 V/15 V/24 V) for the encoder according to the encoder's output voltage. When the control terminal option FR-
A8TP is installed, 24 V power supply can be provided from the FR-A8TP.
*3 When the encoder output is the differential line driver type, only 5 V can be input.
NOTE
• The SW2 switches are for manufacturer setting. Do not change the setting.
• When the power supply of the inverter is turned OFF, also turn off the power supply of the encoder. Otherwise, the plug-in
option may be damaged.
88
2. INSTALLATION AND WIRING
2.8 Connection to a motor with encoder (Vector control)
Downloaded from ManualsNet.com
1
2
Internal terminating
resistor-ON
(initial status)
Internal terminating
resistor-OFF
Motor
SF-JR Differential
SF-HR Differential
*1
Others
SF-JRCA Differential
SF-HRCA Differential
*1
Others
SF-V5RU Complementary
*1
search engine
Differential line
driver (initial status)
O
N
SW2
SW3
Complementary
1 O
N
2
SW2
Encoder type selection Terminating resistor
switch (SW3) selection switches (SW1)
ON
ON
*1
ON
ON
*1
OFF
*1
SW3
Power supply
specification
5 V
5 V
*1*3
5 V
5 V
*1*3
12 V
*1*3
*2