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SCALEXIO® EMH Solution for Electric Drives Simulation

Processor-Based Simulation of Electric Drives

The new SCALEXIO EMH Solution provides a comprehensive ConfigurationDesk I/O library for processor-based HIL simulation of electric drives. The DS2655 FPGA Base Board with up to five DS2655M1 Multi-I/O Modules with preconfigured firmware is used as the hardware.  

Processor-Based Simulation of Electric Drives

The SCALEXIO EMH Solution can be used for defining the I/O functions for the simulation of up to two electric drives. The required DS2655 FPGA Base Board is configured from within ConfigurationDesk®. Thanks to the predefined function blocks, users do not have to program or generate FPGA code. The DS2655M1 Multi-I/O Module and the integrated angular processing units (APUs) enable the use of high-resolution I/O to support applications in the areas of position sensor simulation (PSS) and pulse width modulation (PWM). The variable I/O channel mapping and the flexible support of up to five DS2655M1 Multi-I/O Modules open up the hardware’s full potential. If the drive controller requires an enhanced simulation resolution, a seamless switch to FPGA-based simulation is possible without changing the hardware.

The EMH Solution FPGA design includes four internal APUs running on the DS2655 FPGA Base Board to calculate the local position. Furthermore, up to six master APUs can be referenced globally as position sources via IOCNET. Each of the position sensors can be configured for allocating one of the ten APUs as the position source.

Depending on the number of DS2655M1 modules, the available amount of I/O channels varies.

Main Functions for Position Sensor Simulation (PSS)

Function Description Number of Functions per DS2655 I/O Requirements per Function
Resolver Out Simulation with configurable pole pair number, offset angle, transformer ratio. Excitation input signal delay. Output amplitude and phase error manipulation. 2

Excitation: 1x Analog In

Sin/Cos: 2x Analog Out

Sine Encoder Out Simulation with configurable number of lines, output amplitude and DC offset 2 A,B, Index:
3x Analog Out
Or1
6x Analog Out
Incremental Encoder Out Simulation with configurable number of lines and offset angle 2 A,B, Index:
3x Digital (Out)
Or1
6x Digital (Out)
Hall Encoder Out Simulation with configurable pole pair number, offset angle, angle-dependent pulse activation/deactivation 2 A,B,C:
3x Digital (Out)
Or1
6x Digital (Out)
Analog Wavetable Encoder Out Output with freely designable analog shape format for 360 degrees with up to 16383 values and optional linear interpolation for intermediate values. Configurable number of waveforms per revolution. 3 1x Analog Out

Digital Wavetable Encoder Out

Output with freely designable digital shape format for 360 degrees with up to 16383 values. Configurable number of waveforms per revolution. 3 1x Digital (Out)
1 If inverted signal generation is activated.

 

Main Functions for Pulse Width Modulation (PWM)

Function Description Number of Functions per DS2655 I/O Requirements per Function
Six-Channel PWM In Supporting duty cycle, period time, latch time and dead time2 measurement and configurable interrupt generation (latch-based measurement), oversampling, downsampling Optional external triggering Optional2 dead time violation interrupt generation 2

Gates: 3x Digital (In) Or2
6x Digital (In)

Optional ext. trigger:
1x Digital (In)

Optional latch pulse: 1x Digital (Out)

Single-Channel PWM In Combined edge-based and latch-based measurement of duty cycle and frequency 4 1x Digital (In)
Single-Channel PWM Out PWM generation with variable frequency and duty cycle 4 1x Digital (Out)
2 If high-side and corresponding low-side signals are used.

 

Basic I/O Functions

Function Description Number of Functions per DS2655 I/O Requirements per Function
Multi-Bit In Standard digital input functionality for variable number of channels 4 1-50 Digital (In)
Multi-Bit Out Standard digital output functionality for variable number of channels 4 1-50 Digital (Out)
Multi-Voltage In Standard analog input functionality for variable number of channels 4 1-25 Analog In
Multi-Voltage Out Standard analog output functionality for variable number of channels 4 1-25 Analog Out

Further Information