Switches on the FR-A8AP Use the encoder type selection switch (SW3) to select the differential line driver or the complementary. 1 It is initially set to the differential line driver. Switch its position according to the output circuit. Differential line driver (initial status) 2 O N 1 2 3 4 Complementary 3 SW1 4 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. 5 ON: With internal terminating resistor (initial status) OFF:
Without internal terminating resistor 6 Internal terminating resistor-ON (initial status) 1 2 O N 7 SW2 Internal terminating resistor-OFF O N 1 2 3 4 SW1 SW3 8 9 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. 10 Motor and switch setting *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. 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. 89 2.
INSTALLATION AND WIRING 2.8 Connection to a motor with encoder (Vector control) 12 ON SW2 SW3 NOTE Motor Encoder type selection switch (SW3) Terminating resistor selection switches (SW1) Power supply specification*2 Mitsubishi Electric standard motor with encoder Mitsubishi Electric high-efficiency motor with encoder SF-JR Differential ON 5 V SF-HR Differential ON 5 V Others *1 *1 *1*3 Mitsubishi Electric constant-torque motor with encoder SF-JRCA Differential ON 5 V SF-HRCA Differential ON 5 V Others *1 *1 *1*3 Vector control dedicated motor SF-V5RU Complementary OFF 12 V Other manufacturer's motor with encoder *1 *1 *1*3 NOTE