Overview
The Emerson A6370D is a single-channel speed monitoring module for the AMS 6300 SIS system. It monitors rotational speed signals and provides output signals for speed indication and control functions. The module features backplane digital and pulse outputs, front-panel signal outputs, a USB Type B configuration interface, RS-485 communication, and PROFIBUS DP support for system communication and configuration.
Key Features
- Single-channel speed monitoring for overspeed protection applications.
- Seven backplane digital outputs, including a Channel OK (COK) signal.
- Three galvanically isolated backplane pulse outputs with current limiting.
- Front-panel TTL pulse output and sensor output for signal access.
- USB Type B configuration interface and RS-485 communication.
- PROFIBUS DP support for communication with compatible systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | A6370D |
| Brand | Emerson |
| Product Type | Overspeed Protection Monitor |
| System | AMS 6300 SIS |
| Measurement Channel | 1 speed channel |
| Backplane Digital Outputs | 7, short-circuit-proof |
| Digital Output Functions | Outputs 1 to 6 and Channel OK (COK) |
| Digital Logic Low Level | Less than 100 mV |
| Digital Logic High Level | -2 V system supply voltage |
| Digital Output Maximum Current | 25 mA |
| Backplane Pulse Outputs | 3, open-collector-emitter |
| Pulse Output Isolation | Galvanically separated |
| Backplane Pulse Output Maximum Voltage | 31.2 V |
| Backplane Pulse Output Maximum Current | 16 mA at 24 V |
| Backplane Pulse Output Frequency | 0 to 20 kHz |
| Sensor Output Frequency | 0 to 20 kHz |
| Sensor Output Impedance | 10 kOhm typical |
| Configuration Interface | USB Type B |
| Serial Communication | RS-485 |
| RS-485 Device Capacity | Maximum 32 devices |
| RS-485 Baud Rates | 38400, 57600, 115200 baud |
| PROFIBUS DP | Supported |
| PROFIBUS DP Device Capacity | Maximum 31 devices |
| PROFIBUS DP Data Rate | Up to 12 Mbit/s |
| Estimated Shipping Dimensions | 7 x 19 x 12.8 cm |
| Weight | 0.24 kg |
Output Signals and Communication
The backplane digital outputs provide discrete status or control signals, while the pulse outputs transmit frequency-based signals. The front-panel TTL pulse output provides a separate signal connection, and the sensor output supplies an additional voltage signal. These outputs support different signal interfaces, so the required output type and electrical limits should be checked before connecting external equipment.
The USB Type B interface supports configuration access. RS-485 allows communication with up to 32 devices, while PROFIBUS DP supports data transmission rates up to 12 Mbit/s and up to 31 devices. PROFIBUS DP availability is identified in the supplied specifications as applicable to the A6370D/DP version; confirm the exact order code before selecting this communication option.
Frequently Asked Questions
Q: What is the main function of the Emerson A6370D?
A: The A6370D is a single-channel speed monitoring module for the AMS 6300 SIS system. It provides speed-related outputs and communication interfaces for monitoring and control applications.
Q: Does the A6370D support PROFIBUS DP?
A: PROFIBUS DP is listed for the A6370D/DP version, with data rates up to 12 Mbit/s and a maximum of 31 devices. Verify the full model designation to confirm the required communication configuration.
Q: What should be checked before replacing an existing module?
A: Confirm the complete model designation, required communication interface, output signal types, and electrical ratings. The replacement must match the installed system configuration and the connected equipment’s signal requirements.
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