DIGI CROWN EI

 

Marposs enhances the Digi Crown network product range with the input encoder module, allowing to perform even complex measuring tasks requiring the management of third parties incremental sensors, such as linear gauges and rotary encoders.

TECHNICAL SPECIFICATIONS

Inputs from Encoder

• Square Wave Signal Connection: Single ended (A, B, Z, ER) or differential (A+, A-, B+, B-, Z+, Z-, ER+,ER-)
• Input Signal Type: TTL, HTL, RS422, push-pull, or open collector
• Input Channels: 
  • In-phase (A),
  • Quadrature (B)
  • Reference (Z)
  • Error (ER)

Switching Level

• Input Type set to Differential
  • High when Vdiff > 0.4 V
  • Low when Vdiff < -0.4 V
  • Vdiff is the V+ input to V- input differential voltage
• Input Type set to Single Ended
  • High when V+ input >2.4 V
  • Low when V+ input <1 V
• Phase Frequency: 3 MHz max
• Input Test
  • Alarm on cable disconnected (single wire) or short-circuit between V+ and V-.
  • Alarm on overspeed
  • Alarm on transducer fault (if present on Encoder)

Outputs

• Digital Output
• the "ie" box provides as digital output a number in many measure units (mode depending):
  • mm or inch (linear)
  • degrees (rotary)
  • degrees [360° module] (periodic)
  • number (counter)

The digital output is compatible with the Marposs DigiCrown protocol

• Reading Speed: Up to 4000 readings/second
• Number of buffered samples: max 6200

Counter

• Counter Size: 12 digits

• Counter Modes
  • Quadrature
  • Bidirectional counter
  • Monodirectional counter (programmable)
• Interpolation Rate: X1, X2, X4 (programmable)

Environmental 

• Storage Temperature: -20°C to +70°C
• Operating Temperature: 0°C to +60°C
• Protection level: IP43

Electrical Interface

• Energising Voltage: 7,5Vdc (-10% + 30%) provided by Digi Crown bus
• Energising Current: 100mA (excluding sensor excitation requirement)
• Interface: Digi Crown Network max baud rate 2083 Kpbs
• Connector: 9 D-sub mal