Allen-Bradley |1771-VHSC|High-Speed Counter Module

SKU: 1771-VHSC

Manufacturer: Allen-Bradley
Product No.: 1771-VHSC
Condition：In stock
Product Type: High-Speed Counter Module
Product Origin: USA
Payment:T/T, Western Union
Weight: 100g
Shipping port: Xiamen
Warranty: 12 months

Description

The 1771-VHSC is a high-speed counter module designed for industrial applications, offering versatile input configurations and robust protection mechanisms.

Features

Supports 5V differential and +12 to +24V single-ended drivers.
Opto-isolated inputs for noise immunity.
Built-in current limiting and overcurrent protection.
Compatible with various encoder types and limit switches.

Technical Specifications

Power Supply

Operates from +5V to +24V DC power supply.

Input Circuits

Resistors:
- R1: 1KΩ
- R2: 150Ω
- R3/R4 (series): 1.15KΩ
Photodiode Voltage Drop:
- 1.9V to 2.14V (with currents ranging from 5mA to 8mA)
Maximum Photodiode Current:
- 8mA
Total Resistance (24V Operation):
- 1150Ω, limiting current to 19mA

Open Collector Circuit

Can source up to 10.2mA with a 24V supply and JPR5 jumper.

Filtering

RC time constants using capacitors like C4 help filter switch contact bounce.

Cable Specifications

Recommended Cable: Belden 9182 (9pF/foot) for low capacitance.
Impedance Matching: Ideal for optimal performance.

Encoder Input Frequency

Maximum frequency: 250KHz.
Suitable for high-performance encoders with quadrature specifications of 90° (+22°) and a duty cycle of 50% (+10%).

Order and Warranty Information

Terms of Purchase and Returns

Detailed guidelines on minimum order quantity, delivery times, payment options, warranty, and return policies.

We gladly accept bulk orders, with a minimum order quantity of just one unit.

Upon request, we can provide all necessary documents, including Certificates of Origin/Conformance and other required export paperwork.

We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% payable before shipment. For RMB transfers, please contact us if you have an agent in China.

All new and original items come with a standard one-year warranty. For extended warranty options, feel free to contact us for pricing details.

We prioritize your satisfaction. If you need to return an item, it must be done within 30 days of purchase. The product must be unused, unopened, and in its original packaging, including all accessories. Refunds will be processed within 5-7 business days of receiving the return. Please note, shipping and handling charges are non-refundable.

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