DP820

Description

DP820 is a two-channel incremental pulse counter module in the ABB S800 I/O series. It operates on 24 V DC and supports high-speed counting with configurable input filters, offering compatibility with RS422 signals and shielded twisted-pair wiring.

General Information

• Module type: Incremental pulse counter

• Number of channels: 2

• Power supply voltage: 24 V DC (range: 12 to 32 V DC)

• Max voltage on inputs (A, B, ST, DI): 30 V DC

• Maximum field cable length: 200 meters

• Cable type: Shielded, twisted pair

• Characteristic impedance: 100 Ω (±25%)

Input Filter Configuration

• Input A and B: Unfiltered or 1 μs

• Input ST: 1 μs or 220 μs

• Input DI: 220 μs or 2.2 ms

Input Frequency – RS422 / +5V / 13mA Range

• Filter: Unfiltered

• u/d or c/d encoding: 1.5 MHz / 333 ns

• Quadrature encoding: 750 kHz / 667 ns

• Filter: 1 μs

• u/d or c/d encoding: 200 kHz / 2.5 μs

• Quadrature encoding: 100 kHz / 5 μs

Input Frequency – 12 V Range (TU830 Only)

• Filter: Unfiltered: Not allowed

• Filter: 1 μs

• u/d or c/d encoding: 200 kHz / 2.5 μs

• Quadrature encoding: 100 kHz / 5 μs

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