The ABB DP640 3BHT300057R1 is a precision rotational speed monitoring module from the Advant Master series. This dedicated I/O module accurately measures the speed and rotational direction of turbomachinery, turbines, and other critical rotating equipment. Its robust design provides vital overspeed protection to prevent catastrophic equipment failure in industrial processes.
Core Speed Measurement and Logic Functions
This module accepts input from two independent speed sensors, supporting a maximum frequency of 50 kHz for high-speed applications. It actively measures the pulse rate from each sensor to calculate precise rotational speed in revolutions per minute (RPM). Furthermore, the DP640 compares the phase relationship between the two input channels to definitively determine the rotational direction.
The module’s integrated overspeed trip logic continuously monitors the calculated speed against a programmable setpoint. Consequently, it can trigger an immediate safety response via its dedicated output relays when a dangerous threshold is exceeded.
Electrical Specifications and Safety Isolation
The ABB DP640 module operates from a standard 24 V DC or 5 V DC supply, drawing a typical current of +13 mA. Its two speed meter inputs and solid-state output feature individual opto-isolation, which enhances noise immunity and system safety. This isolation effectively protects the central control system from electrical disturbances in the field wiring.
For outputs, the module provides both a solid-state 24V DC signal and a dry contact relay rated for 60 V DC. This dual-output configuration offers flexibility for connecting to different control or alarm system interfaces.
Physical Dimensions and Environmental Compliance
The module is designed for integration into standard industrial racks with specific physical dimensions. It has a net weight of 1.33 kg, which contributes to its sturdy and reliable construction. The unit complies with relevant environmental directives, with an exemption under Article 2(4) of the EU RoHS directive 2011/65/EU.
Detailed Technical Specifications Table
The following table summarizes the key technical parameters for the ABB DP640 3BHT300057R1.
| Parameter Category | Specification |
|---|---|
| Manufacturer | ABB |
| Model Number | DP640 3BHT300057R1 |
| Product Series | Advant Master |
| Module Type | Rotational Speed Meter / Overspeed Trip |
| Primary Function | Speed Measurement, Direction Detection, Overspeed Protection |
| Number of Input Channels | 2 |
| Input Type | Digital (DI) for Speed Sensors |
| Max. Input Frequency | 50 kHz |
| Supply Voltage | 24 V DC or 5 V DC |
| Supply Current | +13 mA (typical) |
| Direction Detection | Yes, via dual-channel phase comparison |
| Outputs | Solid-State 24V DC & Dry Contact (60 V DC) Relay |
| Isolation | Individual opto-isolation on inputs and solid-state output |
| Dimensions (H x W x D) | 273 mm x 40 mm x 252 mm |
| Net Weight | 1.33 kg |
| RoHS Status | Exempt per Article 2(4) of 2011/65/EU |
| WEEE Category | 5 (Small Equipment) |
Details
| Weight | 0.2 kg |
|---|---|
| Dimensions | 234 × 108 × 18 mm |
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