Description

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📌 Overview

The ABB 3BHT300057R1 — designated as DP640 — is a rotational speed meter module (a specialized I/O module) used in industrial automation and process control systems, especially within ABB Advant Controller / S600 I/O systems. It is designed to measure and monitor the rotational speed and direction of machinery shafts or other rotating elements and provide overspeed logic for protective functions.

🛠 Key Specifications

Manufacturer: ABB

Part Number: 3BHT300057R1

ABB Type Designation: DP640

Module Type: Rotational Speed Meter I/O Module

System Compatibility: S600 I/O

⚙️ Functional Features

Speed Meter Inputs: 2 channels, supports S600 I/O type inputs

Maximum Input Frequency: Up to 50 kHz

Input Signal Level: ±13 mA at 24 V DC or 5 V DC

Direction Detection: Yes — via second speed input

Overspeed Logic: Built‑in logic with trip signal outputs

Outputs:
• Solid‑state output: 24 V DC
• Dry contact output: 60 V DC

Isolation: Opto‑isolated speed inputs and outputs for signal integrity and safety

📊 Physical & Environmental

Dimensions: ~252 mm (depth) × 273 mm (height) × 40 mm (width)

Weight: Approx. 1.33 kg

Compliance:
• RoHS – Exempt under specific EU directive clauses (Article 2 exclusions)
• WEEE Category: Small Equipment (no external dimension over 50 cm)

📌 Typical Applications

The DP640 is used in industrial control systems for:

Rotational Speed Monitoring: For motors, pumps, turbines, conveyors, etc.

Direction Detection: For determining rotation direction in bidirectional machinery.

Overspeed Protection: Can be used in safety or protection circuits where overspeed conditions must trigger a response.

Integration with Advant Controllers/S600 I/O Racks: Seamless interface for speed measurement and logic.