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DS6121 Multi-I/O Board

SCALEXIO I/O board for electric drive and power electronics control applications

With its application-specific I/O library and tailored channel set, the DS6121 Multi-I/O Board is ideally suited for dynamic electric drive and power electronics control applications.

Application Areas

The DS6121 supports a wide range of electric drives from small auxiliary motors to high-performance traction motors in various application areas, such as in-vehicle electrification and electric powertrains as well as industrial automation, e.g., highly dynamic test benches.

Key Benefits

The DS6121 Multi-I/O Board combines flexible interfaces for multiple position sensors, multichannel PWM generation for block and sine commutation, and analog channels for accurate analog measurement on a single board. Onboard I/O synchronization and I/O preprocessing enable highly dynamic control scenarios and provide outstanding real-time performance. A powerful I/O function library with easy access allows for quick prototyping of control applications. Furthermore, several e-drive control demo models are included to get you started. 

Parameter Specification
General
  • 1 x 50-pin Sub-D connector
  • ±60 V overvoltage protection1)
Signal measurement
Analog input
(6x Analog In 16)
  • Input voltage range
    • -10 ... +10 V
    • -60 ... +60 V
  • ADC resolution: 16 bits
  • Sampling rate: 2 MS/s
  • -3 dB cutoff frequency: 3.5 MHz
Signal measurement
Digital input
(4x Digital In/Out 9)
  • Voltage range: 0 ... 60 V
  • Threshold voltage: 0 ... 12 V
  • Pulse width: 25 ns (typ.)
  • Input resistance: 120 kΩ
Signal generation
Digital output
(4x Digital In/Out 9, 12x Digital Out 8)
  • Voltage range
    • 3.3 V TTL
    • 5 V TTL/CMOS
  • Output modes
    • High-side switch
    • Low-side switch
    • Push/Pull
  • Output current: ±40 mA
  • Output pulse width: 25 ns (typ.)
Position sensor interfaces
Position encoder
(6x Flexible In/Out 1)
  • Encoder signal types
    • Sinusoidal signals: 1 VPP or 2 VPP differential
    • Digital signals: RS485
    • Individually configurable for each channel
  • Analog input voltage range
    • ±0.5 V (1 VPP)
    • ±1 V (2 VPP)
  • ADC resolution: 14 bits
  • Sampling rate: 10 MS/s
  • -3 dB cutoff frequency: 3 MHz (typ.)
Position sensor interfaces
Resolver interface
(1x Resolver In 2)
  • Excitation output voltage: 3 VRMS, 7 VRMS, or 10 VRMS
  • Excitation output current: max. 160 mARMS
  • Excitation output frequency range: 2 ... 20 kHz
  • Input voltage range: 1.5 VRMS, 3.5 VRMS, or 5 VRMS
  • Resolution: 10, 12, 14, 16 bits
  • Overvoltage protection: ±12 V continuous
Sensor supply
  • 2x 5 V (max. 500 mA each)
Internal communication interface
  • IOCNET
Physical size
  • 238 x 100 x 19 mm (9.4 x 3.9 x 0.7 in) without fastening bracket
  • Requires 1 slot
Voltage supply
  • 24 V
Typical power consumption
  • 12 W
1) Resolver provides a reduced overvoltage protection.

I/O Functionality

The channel set of the DS6121 Multi-I/O Board supports the following I/O functions. The channels are defined and configured graphically with dSPACE ConfigurationDesk.

Position Sensors

  • 3x Sine Encoder In
  • 3x Digital Incremental Encoder In
  • 3x EnDat Master
  • 3x SSI Master
  • 2x Hall Encoder In
  • 1x Resolver In

Analog In

  • 6x Voltage In
  • 6x Voltage Signal Capture

Digital In

  • 4x PWM/PFM In
  • 4x Multi Bit In
  • 4x Trigger In

Digital Out

  • 16x Multi Bit Out
  • 16x PWM/PFM Out
  • 16x Multi-Channel PWM Out
  • 2x Block Commutated PWM Out
  • 4x Digital Pulse Out

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