2.2 Input Signals
21
■ Output Circuits and Interfaces
The output signal circuits of the digital torque amplifier are of the three types shown
below. Configure the input circuit on the upper-level device to match each of these output
circuits.
• Connection with Line Driver Output Circuits
The output signals (PAO, *PAO, PBO, *PBO) where the encoder serial data was
converter to a 2-phase (A-phase, B-phase) pulse, and the origin pulse signal (PCO,
*PCO) are output by the line driver circuit. The upper-level device receives these
through the line receiver circuit. See “2.3 Wiring to the Encoder” for an example of
the connection circuit.
• Connection with Photocoupler Output Circuit
Servo alarms and other output signals for sequence use are configured in the
photocoupler output circuit. They are connected through the relay and line driver
circuits.
Note: The maximum allowable voltage and current capacity of the photocoupler output circuit are as
follows:
• Voltage: DC30V(Max.)
• Current: DC50mA(Max.)
0V
DC5V～24V
Digital Torque
Amplifier Side
Relay
0V
P
Digital Torque
Amplifier Side
DC5V
～
12V
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