1734-VHSC24 | Allen-Bradley POINT I/O Very High-Speed Counter Module 24 VDC

Allen-Bradley · HMIs & Displays

Description The Allen-Bradley 1734-VHSC24 is a POINT I/O Very High-Speed Counter (VHSC) module designed for applications requiring precise pulse, frequency, and position monitoring. Operating at 24 VDC, it supports up to 1 MHz input frequency and includes one group of A/Aret, B/Bret, Z/Zret inputs and one isolated group of two 24 VDC outputs (0.5 A per output). This module integrates seamlessly into POINT I/O systems and is ideal for high-speed counting, encoder feedback, rate measurement, and motion-related applications.     Technical Specifications  Condition New / Never Used Surplus Brand Allen-Bradley Series POINT I/O Part Number 1734-VHSC24 Module Type Very High-Speed Counter Module Input Voltage 24 VDC Inputs 1 group of A/Aret, B/Bret, Z/Zret Outputs 1 isolated group of 2 (0.5 A @ 24 VDC each) Output Voltage Range 10…28.8 VDC Max Input Frequency 1 MHz (Counter, Encoder X1) Input Filter Options Off, 10 μs, 100 μs, 1 ms, 10 ms Power Dissipation 1.9 W Thermal Dissipation 6.5 BTU/hr Key Switch Position 2 Environmental Rating -4 to 131°F (-20 to 55°C), 5–95% RH non-condensing Shock/Vibration 30 g / 5 g (10–500 Hz) Mounting DIN-rail with 1734-TB or 1734-TBS base Dimensions 2.21 x 0.47 x 2.97 in Certifications cUL-us, CE       Information About 1734-VHSC24 The Allen-Bradley 1734-VHSC24 acts as both a signal conditioner and a function block, processing high-speed counter signals and passing them to the POINTBus backplane for the controller.  With a 1 MHz maximum input frequency, this module is suitable for use with high-resolution encoders, turbine meters, flow sensors, mechanical switches, pulse transducers, and other motion-related devices. Designed for industrial reliability, the 1734-VHSC24 includes multiple input filtering options (OFF, 10 μs, 100 μs, 1 ms, 10 ms) to ensure noise immunity and accurate counting. Outputs are rated 0.5 A at 24 VDC and isolated, allowing safe switching of control signals. Its 24-bit counting range (0 – 16,777,215) is stored internally in a 32-bit register, enabling configurable presets, rollover settings, and real-time counter operation. Key Features: Very High-Speed Counter up to 1 MHz Supports quadrature encoder inputs 1 group of A/Aret, B/Bret, Z/Zret inputs 2 isolated 24 VDC sourcing outputs Modes: Counter, Encoder, Rate, PWM, Pulse Generator Adjustable input filtering Compact POINT I/O design DIN-rail mountable Ideal for motion control and high-speed feedback systems The module mounts to a POINT I/O base (1734-TB or 1734-TBS) and is DIN-rail ready. It carries cULus and CE certifications and operates across a wide environmental range, making it reliable for demanding automation environments.

Brand: Allen-Bradley · Category: HMIs & Displays

Key features

• Very High-Speed Counter up to 1 MHz
• Supports quadrature encoder inputs
• 1 group of A/Aret, B/Bret, Z/Zret inputs
• 2 isolated 24 VDC sourcing outputs
• Modes: Counter, Encoder, Rate, PWM, Pulse Generator
• Adjustable input filtering
• Compact POINT I/O design
• DIN-rail mountable
• Ideal for motion control and high-speed feedback systems

Specifications

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