Skip to main content
Skip table of contents

Inputs and Outputs

The Everest XCR Servo Drive provides several inputs and output terminals for parameter observation and drive control options.

Non-isolated I/O

Everest XCR inputs and outputs are not isolated. The reference voltage of the drive (GND_D) and the ground of the devices connected to I/Os must be the same. Otherwise, inputs or outputs may be damaged.

For electromagnetically noisy environments and for signals that could be user-accessible and cause electric shock, reinforced isolation is necessary. It is recommended to use isolators like Silicon Labs Si87xx series, Texas Instruments ISO121x isolators.

Les entrées et sorties de l'Everest XCR ne sont pas isolées. La tension de référence du lecteur (GND_D) et la masse des dispositifs connectés aux E/S doivent être identiques. Dans le cas contraire, les entrées ou les sorties peuvent être endommagées.

Pour les environnements à fort bruit électromagnétique et pour les signaux qui pourraient être accessibles à l'utilisateur et provoquer des chocs électriques, une isolation renforcée est nécessaire. Il est recommandé d'utiliser des isolateurs comme ceux de la série Si87xx de Silicon Labs, les isolateurs ISO121x de Texas Instruments.

Digital Inputs Interface

The non-isolated digital inputs are ready for 5 V or 3.3 V digital levels. The following table shows their electrical specifications.



Number of inputs

4 (IN1, IN2, IN3, IN4)

Type of input

Single ended
ESD protected
Low-pass filtered

ESD capability

IEC 61000-4-2 (ESD) ± 15 kV (air), ± 8 kV (contact)

Input current

0.2 mA at 5 V (25 kΩ equivalent input resistance)
Maximum input voltage range-2 V ~ +7 V

High level input voltage

> 3 V

Low level input voltage

< 2 V
Minimum hysteresis200 mV

1st order filter cutting frequency (-3 dB)

265 kHz

Next figure shows an example of how to wire digital inputs with various input options. For higher voltage systems like 12 V or 24 V a series resistance should be connected to the input.

The interface for 3 wire NPN and PNP sensors is shown next.

Analog Input Interface

The Everest XCR has a high accuracy fully differential 16-bit analog input AN1. See the specifications next:



Type of input

ESD protected

ESD capability

IEC 61000-4-2 (ESD) ± 15 kV (air), ± 8 kV (contact)

Input voltage range

±10 V differential (AN1+ - AN1-)

Analog input resolution

16 bits, 0.305 mV / ADC coun

(Theoretical values: +10 V → 65535 counts, -10 V → 0 counts)

Accuracy±0.05% from -9.8 V to + 9.8 V. 0.5% full range
Maximum absolute voltage on any pin (AN1+ or AN1-)±15 V

1st order filter cutting frequency (-3 dB)

10 kHz

Input impedance5 kΩ typ

Next figure shows how to connect the analog input. Note that for single-ended inputs it is recommended to connect the negative AN1- to GND_D.

Also, for long distances, twisted pair, shielded cables are preferred. Connecting the shield to GND will improve the signal to noise ratio. However, take precautions not to connect the shield to PE as this could actually increase the noise of the signals. 

Digital Outputs Interface

Everest XCR Servo Drive has 4 non-isolated digital outputs. These outputs can be used to drive optocouplers, LEDs or other digital circuits.



Number of outputs


Type of output

Push-pull output at 5 V
ESD protected.
Overload, short circuit protected

ESD capability

IEC 61000-4-2 (ESD) ± 15 kV (air), ± 8 kV (contact)

Maximum sink/source current

±10 mA

Unloaded output high voltage4.5 ~ 5 V
Unloaded output low voltage0 ~ 0.5 V

The wiring of the digital outputs is shown next:

JavaScript errors detected

Please note, these errors can depend on your browser setup.

If this problem persists, please contact our support.