2.2 Input Signals20■ Interface CircuitAn example is given below of connection of the digital torque amplifier I/O signals to anupper level device.■ Command Input Circuit and InterfaceAnalog Input CircuitThe analog signal is the torque reference signal. The input impedance is as follows.• Command Input (CMD-IN): Approx. 14kΩThe maximum allowable voltage for the input signal is ±12V• 10V= Peak Motor Torque■ Sequence Input Circuit and InterfaceThis is connected by a relay or open collector transistor circuit. Select a low current typewhen connecting by relay. If low current relay is not used, this may cause a connectionfault.12V1.8kΩ(1/2W) or more25HP-10B2kΩ3121000：10VSG Approx. 14kΩAmplifierCMD-IN50mA or more 3.3kΩ+24VIN/S-ON etc.AmplifierDC24V50mA or more 3.3kΩ+24VIN/S-ON etc.AmplifierDC24V 3.3k Ω+24VIN/S-ON etc.Amplifier50mAor moreDC 24V
