Motorola MVME-372

Description

Detailed Parameter Table

Motorola MVME-620

Product Introduction

The **Motorola MVME-372** is a compact low-density 3U VMEbus digital I/O module designed for industrial automation systems requiring simple and reliable discrete signal handling. As an entry-level member of Motorola’s MVME300 series, it integrates 8 optically isolated digital input channels and 8 solid-state relay (SSR) output channels, providing a cost-effective solution for connecting sensors, actuators, and discrete devices in small-scale or specialized mission-critical applications.

With 24V DC input compatibility and compact SSR outputs rated for 0.5A @ 250V AC / 1A @ 30V DC, the **Motorola MVME-372** caters to low-power industrial device requirements. Its 1000V AC isolation between inputs/outputs and the backplane offers basic protection against electrical noise and ground loops, ensuring system stability. The VMEchip1 interface enables seamless integration into VMEbus-based control systems as a slave device, facilitating real-time data exchange with host CPUs. Designed to operate in -40°C to +85°C environments, this module delivers consistent performance in harsh industrial settings.

Core Advantages & Technical Highlights

Compact Low-Density I/O: Featuring 8 input and 8 output channels in a single 3U VME slot, the **Motorola MVME-372** optimizes chassis space for small-scale systems. This low density is ideal for applications with minimal sensor and actuator requirements, reducing unnecessary I/O capacity while keeping deployment costs economical.

Reliable SSR Outputs & Fixed Inputs: Fixed 24V DC inputs simplify wiring for standard industrial sensors, eliminating configuration complexity. Solid-state relay outputs provide reliable switching for low-power loads, with short-circuit protection to prevent damage from unexpected current surges—suitable for delicate or low-voltage devices.

Industrial-Grade Durability: Operating from -40°C to +85°C, the **Motorola MVME-372** withstands extreme temperatures, vibration, and electromagnetic interference (EMI) common in small manufacturing cells, laboratory equipment, and specialized control subsystems. Its rugged construction and high-quality components ensure long-term stable operation, minimizing unplanned downtime.

Efficient Signal Handling: With input response times of ≤3ms and output response times of ≤4ms, the **Motorola MVME-372** captures and acts on discrete signals in near-real time—suitable for time-sensitive control applications such as small-scale production line sequencing and equipment safety interlocks.

Seamless VMEbus Integration: The VMEchip1 controller supports 16-bit VMEbus data transfers, ensuring compatibility with legacy VMEbus systems. As a slave device, it responds promptly to host commands, enabling timely I/O updates for control algorithms and maintaining system synchronization.

Typical Application Scenarios

Small-Scale Manufacturing Cells: In precision component assembly cells, the **Motorola MVME-372** connects limit switches (inputs) that detect fixture positions and SSR outputs that control微型 motors and solenoid valves for part handling. Its compact I/O density matches the cell’s modest requirements, while short-circuit protection safeguards delicate assembly tools.

Laboratory Test Equipment: In material testing labs, the module monitors sensor inputs (e.g., load cell triggers, temperature limits) and controls test chamber accessories (e.g., fans, heaters) via SSR outputs. The 1000V AC isolation protects sensitive lab equipment from electrical noise, and the wide operating temperature range accommodates test chamber environments.

Specialized Machine Subsystems: In printing machinery, the **Motorola MVME-372** interfaces with paper jam sensors (inputs) and controls inkjet nozzle on/off mechanisms (outputs). SSR outputs offer fast switching for precise printing control, while channel status LEDs simplify on-site troubleshooting.

Remote Control Panels: In oil and gas wellhead monitoring stations, the module connects pressure switch inputs and controls small valves or alarm indicators via outputs. Its compact size fits in space-constrained remote enclosures, and the rugged design withstands outdoor environmental conditions.

Motorola MVME-620

Related Model Recommendations

Motorola MVME-374: Medium-density digital I/O module with 16 input/16 output channels, ideal for scaling up systems from **Motorola MVME-372**.

Motorola MVME-162-01: 3U VMEbus CPU module compatible with **Motorola MVME-372**, serving as the host for I/O data processing and control.

Motorola MVME-701A: Serial communication module, working with **Motorola MVME-372** to transmit I/O status data to remote monitoring systems.

GE VMIVME-7650: Analog I/O module complementary to **Motorola MVME-372**, adding analog data acquisition and control capabilities.

Motorola MVME-197LE: Memory expansion module for host CPUs, increasing storage for I/O data logs collected by **Motorola MVME-372**.

Motorola MVME-605: Next-generation PowerPC SBC, pairing with **Motorola MVME-372** for upgraded control systems requiring higher processing power.

Installation & Maintenance Guidelines

Installation Preparation: Before installing the **Motorola MVME-372**, ensure the VMEbus chassis is powered off and properly grounded. Align the module with the 3U slot guides, verifying P1/P2 backplane connector alignment. Gently insert until fully seated, then fasten front-panel screws to prevent vibration-induced disconnections. For wiring, use shielded cables for input channels; connect inputs to 24V DC sensors and outputs to loads within the specified current/voltage ratings.

Maintenance Best Practices: Perform quarterly inspections to clean dust from connectors and front-panel status LEDs using compressed air. Regularly check channel status LEDs to identify faulty inputs or outputs. Test SSR outputs monthly by energizing each channel and verifying load operation. Ensure 24V DC power supplies for inputs/outputs are stable (±10%) to prevent performance issues. Use only genuine Motorola spare parts to maintain VMEbus compatibility and I/O performance.

Service & Warranty Commitment

The **Motorola MVME-372** is backed by a 2-year manufacturer’s warranty covering defects in materials and workmanship under normal industrial operation. Motorola’s technical support team provides professional assistance via email and phone, with response times within 24 hours for critical issues. We offer remote diagnostic services to troubleshoot I/O connectivity problems, minimizing on-site service costs. For legacy systems, we provide repair and component replacement services to extend product lifecycle. Our commitment to quality ensures that the **Motorola MVME-372** delivers consistent, reliable digital I/O performance, protecting your investment in small-scale industrial automation infrastructure.