Description
Product Description
The Honeywell 05701-A-0325 is a high-precision DC Input Card engineered for Honeywell Distributed Control Systems (DCS). It acquires analog DC voltage signals, converts them into digital data, and provides relay outputs for reliable monitoring and control. This module ensures safe and organized power distribution across the rack while offering protection features such as RFI filtering, reverse polarity protection, and fuse-protected DC input.
Technical Specifications
| Specification |
Details |
| Input Type |
DC voltage signals (±10V, ±20V, ±50V, up to ±100V) |
| Input Range |
±10V to ±100V |
| Resolution |
12-bit or 16-bit |
| Sampling Rate |
Configurable up to 250 Hz; advanced versions up to 100 kHz |
| Output Type |
Relay outputs, up to 8 channels |
| Relay Load Capacity |
2A per channel |
| Operating Voltage |
24 VDC nominal (external supply) |
| Auxiliary Input |
Stand-by battery support via auxiliary DC input |
| Operating Temperature |
-20°C to +60°C (extended variants up to -40°C to +85°C) |
| Dimensions |
120 × 75 × 25 mm |
| Weight |
0.3 kg |
| Ingress Protection |
IP65 (some variants IP69K) |
| Communication Interfaces |
Modbus, HART, Profibus (optional per configuration) |
| Mounting |
Sub-rack installation via terminal blocks |
| Protections |
RFI filtering, reverse polarity, fuse-protected DC input |
| Certifications |
CE, UL, ATEX, IECEx (depending on version) |
Key Features & Advantages
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High-Precision Signal Acquisition: Supports multiple voltage ranges with 12- or 16-bit resolution.
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Modular Rack Integration: Routes power through the Engineering Card and backplane to all connected modules.
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Relay Outputs: Up to 8 channels for direct control or signaling.
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Protection Features: Includes RFI filtering, reverse polarity protection, and fuse protection for safe operation.
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Flexible Power Options: Supports auxiliary DC inputs or stand-by battery for redundancy.
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Industrial Reliability: IP65-rated construction ensures durability in harsh environments.
Applications
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Distributed Control Systems (DCS) and PLC-based automation
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Industrial monitoring and analytics for process plants
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Power distribution to sub-rack modules in industrial cabinets
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Legacy Honeywell DCS installations requiring high-precision DC input
FAQ
Q: Can the DC Input Card provide power to the rack?
A: Yes, the card allows nominal 24V DC from an external source to power the Engineering Card and backplane, with fuse protection.
Q: How many relay outputs are available?
A: Up to 8 relay outputs per module, each rated at 2A.
Q: Does it support backup power?
A: Yes, auxiliary DC inputs can be connected for stand-by battery support.
Q: Are there protections against wiring errors?
A: The module includes reverse polarity protection, RFI filtering, and DC fuse protection.
