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Optocoupler output Loop
Servo alarm output (ALM) signal, servo ready output (/S-RDY) signal and other sequence control output
signals are optocoupler output loops. Connect via relay circuit or line receiver circuit.
Example of relay circuit
Example of open collector Circuit
(Note) The maximum allowable voltage and current ranges of the output loop of the photocoupler are as follows.
• Maximum allowable voltage: DC30 V
• Current range: DC5 ~ 50 mA
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Output loop of linear driver
Next, the CN1-19 ~ 24 (A, B, C phase signals) terminals of CN1 port will be described.
The serial data of the encoder is converted into output signals (PAO+, PAO-, PBO+, PBO-) of 2-phase
(A-phase, B-phase) pulses and origin signals (PCO+, PCO-) in one coil of the encoder are output through the
output loop of the linear driver. On the upper device side, please use the line receiver circuit to receive.
Example of Line Receiver Loop
Servo unit
Servo unit
Relay
Servo unit
Upper device
