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Product Description

Everest S NET is a high power, highly-integrated, digital servo drive intended to be plugged or soldered to an application-specific daughter board. The drive features best-in-class energy efficiency thanks to its state of the art power stage, and can be easily configured with Ingenia's free-to-download software MotionLab 3.

Everest S NET is enabled with EtherCAT and CANopen communications.

Main features:

  • Ultra-small footprint
  • Up to 80 VDC, 45 A continuous
  • Up to 99% efficiency
  • Up to 50 kHz current loop, 25 kHz servo loops
  • 10 kHz ~ 100 kHz PWM frequency
  • 16 bit ADC with VGA for current sensing
  • Supports Halls, Dual Quadrature encoder, Dual SSI and Dual BiSS-C
  • Up to 4 simultaneous feedback sources
  • Full voltage, current and temperature protections

Typical applications:

  • Collaborative robot joints
  • Robotic exoskeletons
  • Wearable robots
  • AGVs
  • UAVs 
  • Industrial highly integrated servomotors
  • Smart motors
  • Battery-powered and e-Mobility
  • Low inductance motors

Part numbering

ProductOrdering part numberStatusImage

Everest S NET EtherCAT

Pluggable servo drive with EtherCAT communications



Everest S NET CANopen

Pluggable servo drive with CANopen and Ethernet communication.



General Label Identification

For applications not requiring CANopen or EtherCAT, please see Everest CORE.

For applications requiring a ready-to-go product, please see Everest S XCR


Electrical and Power Specifications

Minimum DC bus supply voltage8 VDC
Maximum DC bus supply voltage

80 VDC (continuous)

85 VDC (peak 100 ms)

Working at 80 V will require a stable power supply able to absorb any possible reinjection coming back from the driver.

Recommended power supply voltage range

12 VDC ~ 72 VDC

This voltage range ensures a safety margin including power supply tolerances and regulation during acceleration and braking.

Internal drive DC bus capacitance

19 µF

Note that EVS-NET uses ceramic capacitors. The capacitance value varies with DC bias and temperature.

Logic supply voltage

4.9 VDC ~ 5.1 VDC  Recommended voltage range is 5 V ± 2%

Maximum absolute operating voltage range is 5 V ± 3% (4.85 V to 5.15 V)

A minimum of 500 mA should be provided. Higher current may be needed depending on the feedbacks used.

Rise time of the 5 V supply must be between 2 ms and 10 ms to guarantee a proper initialization.

Boot-up time4 s
Minimum shutdown time500 ms
Output reference voltages3.3 V with 10 mA source / sink capability

Maximum continuous phase current

45 A @ 60 ºC

Typically, 45 A can be obtained working at 48 V, 20 kHz with an appropriate cooling to keep case temperature under 60 ºC. On higher temperatures an automatic current derating will be applied to protect the system. See Thermal and Power Specifications below.
For disambiguation on current definitions please see Disambiguation on current values and naming for Ingenia Drives

Maximum peak phase current

60 A @ 1 sec

Notice that peak current could be limited by an automatic current derating algorithm. In order to get 60 A, case temperature should be kept below 35 ºC.

Maximum continuous switch-off rectified current
  • Without heatsink: 4 A @ 25 ºC
  • With heatsink: 3.5 A @ 85 ºC

Notice that maximum current is dependent on temperature and heatsink attached. At higher temperature, the lower the current. For more information about heatsink applied, see Thermal and Power Specifications below.

A continuous use of disabled power stage as rectifier is not recommended for thermal limitations.

Maximum continuous output power> 3 kW

How the output power is calculated in an Ingenia drive.


Up to 99% 

Maximum DC Bus voltage utilization

99.73% @ 10 kHz

99.55% @ 20 kHz

99.04% @ 50 kHz

95.25% @ 100 kHz

Note 1: these values assume a Sinusoidal commutation and no load connected.

Standby logic supply consumption

≤ 1.12 W typ.

See details and conditions in the section below. The measurement includes 150 mW corresponding to the Ethernet magnetics, not included in the Everest S NET.

Motion Control Specifications

Supported motor types

  • Rotary brushless (SVPWM and Trapezoidal)
  • Rotary brushed (DC)

Power stage PWM frequency (configurable)

10 kHz, 20 kHz (default), 50 kHz & 100 kHz

Current sensing

3 phase, shunt-based current sensing. 16 bit ADC resolution. Accuracy is ±2% full scale

Current sense resolution (configurable)

Current gain is configurable in 3 ranges:

  • 2.475 mA/count
  • 1.352 mA/count
  • 0.570 mA/count
Current sense ranges (configurable)

Current ranges for the 3 configurable current gains:

  • ±81.1 A
  • ±44.3 A
  • ±18.7 A
Max. Current loop frequency (configurable)

50 kHz

Check the Power Stage & Control loops relationship section below.

Max. servo loops frequency (position, velocity & commutation) (configurable)

25 kHz

Check the Power Stage & Control loops relationship section below.

  • Digital Halls
  • Quadrature / Incremental encoder: Up to 2 at the same time.
  • Absolute Encoder: up to 2 at the same time, combining any of the following:
    • BiSS-C (up to 2 in daisy chain topology or simultaneously)
    • SSI (up to 2 simultaneously)
    • EnDat 2.2

All feedback inputs are single-ended, 3.3 V logic levels.

Supported target sourcesNetwork communication (EtherCAT / CANopen)
Control modes
  • Cyclic Synchronous Position
  • Cyclic Synchronous Velocity
  • Cyclic Synchronous Current
  • Profile Position (trapezoidal & s-curves)
  • Profile Velocity
  • Interpolated Position (P, PT, PVT)
  • Homing

Inputs/Outputs and Protections

Inputs and outputs

4x non-isolated single-ended digital inputs - 3.3 V logic level. Can be configured as:

  • General purpose
  • Positive or negative homing switch
  • Positive or negative limit switch
  • Quick stop input
  • Halt input

4x non-isolated single-ended digital outputs - 3.3 V logic level, 3 mA max. sink / source current. Can be configured as:

  • General purpose
  • Operation enabled event flag
  • External shunt braking resistor driving signal
  • Health flag

2x ±3.3 V ,16-bit, differential analog input for load cells or torque sensors. Can be read by the Master to close a torque loop.

Shunt braking resistor output

Configurable over any of the digital outputs (see above).

Enabling this function would require an external transistor or power driver.

Motor brake output

Dedicated, PWM-capable, 3.3 V digital output for driving a mechanical brake. Turn-on and turn-off times are configurable.

Enabling this function would require an external transistor or power driver.

Safe Torque OFF inputs2x dedicated, non-isolated STO digital inputs (3.3 V and 5 V tolerant).
Motor temperature input

1x dedicated, 5 V, 12-bit, single-ended analog input for measuring motor temperature.

NTC, PTC, RTD, linear voltage sensors , silicon-based sensors and thermal switches are supported.


  • Hardcoded / hardwired Drive protections:
    • Automatic current derating on voltage, current and temperature
    • Short-circuit Phase to DC bus
    • Short-circuit Phase to Phase
    • Short-circuit Phase to GND
  • Configurable protections:
    • DC bus over-voltage
    • DC bus under-voltage
    • Drive over-temperature
    • Drive under-temperature
    • Motor over-temperature (requires external sensor)
    • Current overload (I2t). Configurable up to Drive limits
    • Voltage mode over-current (with a closed current loop, protection effectiveness depends on the PID).
  • Motion Control protections:
    • Halls sequence / combination error
    • Limit switches
    • Position following error
    • Velocity / Position out of limits

Communication for Operation



CANopen over EtherCAT (CoE)

File over EtherCAT (FoE)

Ethernet over EtherCAT (EoE)

Magnetic and capacitive connections supported

CANopen / Ethernet


CiA-301, CiA-303, CiA-305, CiA-306 and CiA-402 (4.0) compliant.

10 kbps to 1 Mbps (default). Non-isolated. Termination resistor not included. 

Note: Ethernet port 1 can be used to configure the drive.

Environmental Conditions

Environmental test methods

IEC 60068-2

Case temperature (Operating)

-20 ºC to +85 ºC

Check the Current Derating section below.

Case temperature (Non-Operating)

-40 ºC to +100 ºC

Thermal Shock (Operating)25 ºC to 60 ºC in 25 min
Maximum Humidity (Operating)

up to 95%, non-condensing at 60 ºC

Maximum Humidity (Non-Operating)up to 95%, non-condensing at 85 ºC
Altitude (Operating)

-400 m to 2000 m

Vibration (Operating)5 Hz to 500 Hz, 4-5 g
Mechanical Shock (Operating)±15g Half-sine 11 msec 
Mechanical Shock (Non-Operating)±15g Half-sine 11 msec
Pollution degree and installation environmentPollution Degree 2 environment according to IEC 61800-5-1: Normally, only non-conductive pollution occurs. Occasionally,  a temporary conductivity caused by condensation is to be expected when the Everest S NET is off. 
Minimum index of protection of the installationIP3X: Since Everest S NET has accessible live electrical circuits, it should be installed on closed electrical operating areas with a minimum protection rating of IP3X and should be accessed by skilled or instructed persons.

Reliability Specifications



Based on FIDES method for Standard Life Profile at 40 °C average. Other scenarios available on demand.

Isolation between aluminum case (PE) and live circuits

Basic insulation according to IEC 61800-5-1.

> 200 MΩ. Measured between PE (case) and GND_P and +SUP and phases.

Note: The drive includes 2 nF EMC capacitance between the power supply negative (GND_P) and the enclosure (PE).

Mechanical Specifications

Aluminum caseYes (connectors side open). Minimum wall thickness > 0.75 mm.
Horizontal dimensions

34.5 mm x 26 mm


10.30 mm (including Mezzanine connector)

14.59 mm (including full length of the power pins)

Weight18 g


EC Directives

CE Marking

  • LVD: Low voltage directive (2014/35/EU)
  • EMC: Electromagnetic Compatibility Directive (2014/30/EU) 
  • Safety: Machinery Directive (2006/42/EC)
  • RoHS 3: Restriction of Hazardous Substances Directive (2011/65/UE + 2015/863/EU)
Electromagnetic Compatibility (EMC) Standards
  • IEC 61800-3:2017
  • IEC 61000-6-2:2016
Product Safety Standard
  • IEC/EN 61800-5-1: Adjustable speed electrical power drive systems - Safety requirements - Electrical, thermal and energy
Functional Safety Standard

Safe Torque Off (STO) - Certification Pending

  • IEC 61800-5-2:2016 : SIL3
  • IEC 61508:2010 : SIL3
  • EN ISO 13849-1:2015 : PLe Cat. 3

See Safe Torque Off (STO) section for mandatory Integration Requirements.

Environmental Test methods

IEC 60068-2:

  • IEC 60068-2-1:2007: Test Ad, Cold
  • IEC 60068-2-2:2007: Test Be, Dry Heat
  • IEC 60068-2-38:2009: Test Z/AD, Composite temperature / humidity cyclic
  • IEC 60068-2-78:2012: Test Cab, Damp heat, steady state
  • IEC 60068-2-6:2007: Test Fc: Vibration (sinusoidal)
  • IEC 60068-2-27:2008: Test Ea: Shock

Thermal and Power Specifications

Standby power consumption

The following table shows the standby power consumption when the Everest S power stage is disabled assuming 1 EtherCAT/Ethernet port is active and communicating at full speed, no feedbacks or I/Os are connected. At this point the power consumption comes from the 5 V supply input only. The table also shows the "active standby" dc bus power consumption when the power stage is enabled, motor current is set to 0 and housing temperature is kept at 50 ºC. 

Power supply voltageStandby 5 V logic supply consumptionPower stage DC bus consumption switching at 0 current
10 kHz20 kHz50 kHz100 kHz
12 V

1.12 W

(logic supply consumption does not depend on bus voltage)

0.03 W0.05 W0.11 W0.21 W
24 V0.08 W0.14 W0.34 W0.65 W
48 V0.24 W0.44 W1.00 W1.96 W
60 V0.34 W0.62 W1.45 W2.81 W
72 V0..38 W0.84 W2.01 W3.91 W

Thermal model

The Everest S NET is designed to be mounted on a cooling plate or heatsink to achieve its maximum ratings. In order to calculate the heatsink requirements, the power dissipation can be estimated below. 

In some low power applications, the Everest S is NOT required to be mounted to any heatsink. In this case its thermal resistance from housing/case to ambient Rth(h-a) can be estimated between 8 K/W, to 12 K/W assuming 10 cm clearance to allow air convection at sea level. Typically 7 W can be dissipated without heatsink, refer to the graph below to know which current can be handled.

*Product shown differ from Everest S NET.

Current derating 

The following figure show the maximum motor phase current at different case temperatures and operating points. As can be seen lower temperature, bus voltage or PWM frequency allows higher current due to lower heat dissipation. For highest current, Everest S can be configured at 10 kHz PWM frequency, however this may not be suitable for low inductance motors or acoustic noise sensitive applications. The graph expresses the achievable current including the derating algorithm that limits the current based operation conditions and the power stage temperature. 

Notice that current is expressed in crest value for a 3 phase BLAC motor. For further clarifications and conversion to equivalent RMS values please refer to Disambiguation on current values and naming for Ingenia Drives.

To ensure a proper performance of Everest S NET, the case temperature should be held always below 85 ºC (Tc-max =  85 ºC).

Heat dissipation and heatsink calculation

Following figure show the total power losses at different operating points. This includes logic supply which is an important contributor at low loads. As can be seen, lower PWM frequency and voltage leads to lower power losses. 

Please, use the following procedure to determine the required heatsink:

  1. Based on the voltage & continuous (averaged) current required by your application and Current derating graph determine the Case temperature Tc. Remember that Case temperature must be always below 85 ºC (Tc < 85 ºC)
    1. For example: If the application requires 30 A @ 72 V (20 kHz) the Tc will be 80 ºC
  2. Based on the voltage & continuous current required by your application and Power losses graph determine the generated Power Losses PL to be dissipated. 
    1. For example: If the application requires 30 A @ 72 V (20 kHz) the PL will be 17 W
  3. Determine the Thermal impedance of the used thermal sheet Rth(c-h)
    1. For example, a thermal sheet TGX-150-150-0.5-0, which has an estimated thermal impedance of Rth(c-h) = 0.2 K/W
  4. Based on the ambient temperature and using the following formula determine the maximum thermal impedance to air of the required heatsink Rth(h-a)

    1. For example: If the application requires 30 A @ 72 V (20 kHz) working at Ta = 25 ºC and we use a thermal sheet with Rth(c-h) = 0.2 K/W the required thermal impedance of the heatsink will be Rth(h-a) = 3.44 K/W

Energy efficiency

The following graph shows the net energy efficiency including logic for various operation points assuming 50 ºC case temperature and maximum output power. Very high efficiencies > 99% can be achieved at 10 kHz or 20 kHz PWM frequencies.

Power Stage & Control loops relationship

The power stage PWM frequency can be adjusted in 4 different frequencies. Each frequency has an associated rate for the control loops, as specified in the following table.

Power stage PWM frequencyCurrent loop frequencyServo loops frequency (position, velocity & commutation)
10 kHz10 kHz10 kHz
20 kHz20 kHz20 kHz
50 kHz50 kHz25 kHz
100 kHz50 kHz25 kHz
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