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Analog Input (X8)

The drive is fitted with differential inputs for analog torqueTorque is the tendency of a force to rotate an object about an axis. Just as a force is a push or a pull, a torque can be thought of as a twist, velocity, or position control. The standard drive offers one analog input on X8.

Technical characteristics

Differential input voltage range: ± 12.5 V
Maximum input voltage referring to I/O Return: -12.5, +16.0 V
Resolution: 16 Bit and fully monotonic
Firmware update rate: 16 kHz
Unadjusted offset: < 50 mV
Offset drift typ: 250 µV / ° C
Gain or slope tolerance: +/- 3%
Nonlinearity: < 0.1% of full scale or 12.5 mV
Common Mode Rejection Ratio: > 30 dB at 60 Hz
Input impedance: > 13k Ohms
Signal to noise ratio referred to full scale:
AIN.CUTOFF = 3000 Hz: 14 bit
AIN.CUTOFF = 800 Hz: 16 bit

Analog Input Wiring Diagram

Application examples for set point input Analog-In:

reduced-sensitivity input for setting-up/jog operation
pre-control/override

Defining the direction of rotation

Standard setting: clockwise rotation of the motor shaft (looking at the shaft end) affected by positive voltage between terminal (+ ) and terminal ( - )

To reverse the direction of rotation, swap the connections to terminals +/-, or change the DRV.DIR parameter in the “Feedback 1” screen page.

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