Mitsubishi Electric FR-A700 Instruction Manual page 73

Wiring
Switches of the FR-A7AP
● Encoder specification selection switch (SW1)
Select either differential line driver or complementary. It is initially set to the differential line
driver. Switch its position according to output circuit.
Differential line driver
(initial status)
Complementary
● Terminating resistor selection switch (SW2)
Select ON/OFF of the internal terminating resistor. Set the switch to ON (initial status) when
an encoder output type is differential line driver and set to OFF when complimentary.
ON : with internal terminating resistor (initial status)
OFF: without internal terminating resistor
Internal terminating
resistor-ON
(initial status)
Internal terminating resistor-OFF
NOTES Set all switches to the same setting (ON/OFF).
If the encoder output type is differential line driver, set the terminating resistor switch to the
"OFF" position when sharing the same encoder with other unit (NC (numerical controller),
etc) or a terminating resistor is connected to other unit.
FR-A700 EC
Connection of motor with encoder (vector control)
Fig. 3-27:
Encoder specification selection switch
Fig. 3-28:
Terminating resistor selection switch
I001439E
I001440E
3 - 35