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INSTALLATION
2.3
Encoder Specifications/Terminating Resistor Switch
(1) Encoder specification selection switch (SW1)
Select either the differential line driver or complementary.
The switch is set to the complementary in the initial setting.
Switch its position according to the output circuit.
(2) Terminating resistor selection switch (SW2)
Select ON/OFF of the internal terminating resistor.
Set the switch to OFF (initial status) when an encoder
output type is complementary. Set the switch to ON when
an encoder type is differential line driver.
ON : With internal terminating resistor
OFF : Without internal terminating resistor (initial setting)
REMARKS
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 (CNC (computer numerical control),
etc) and a terminating resistor is connected to other unit.
10
Complementary
FR-A7AL
(initial setting)
Differential line driver
Internal terminating
resistor-OFF
FR-A7AL
(initial setting)
Internal terminating
resistor-ON
SW1
O
1
2
N
3
4
SW1
1
O
N
2
3
4
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