The Abaco Systems VMIVME-2210-100 is a 64-channel momentary relay board for VMEbus-based industrial automation and control systems. This 6U double Eurocard module delivers magnetic latching relay outputs with integrated built-in test (BIT) capability for real-time and offline fault detection. The dual-pole relay architecture dedicates one contact pole to user switching while the second pole supports BIT logic, enabling continuous monitoring of relay contact integrity and driving register status. Relays maintain state through power interruptions until commanded to change, protecting system status during supply loss.
Technical Specifications
Relay Architecture
• 64 output channels, 1 Form C (SPDT) per channel
• Magnetic latching relay type with state retention
• Contacts configurable as 1 Form A (SPST) via NO terminals or 1 Form B (SPST) via NC terminals
• Operate time: <1 ms including bounce
• Release time: <1 ms at nominal voltage
• Contact connect times: 6.5 ms maximum with 0.5 ms typical bounce
Electrical Performance
• Maximum switching: 220 VDC, 250 VAC resistive load
• Maximum current: 2 A DC/AC resistive
• Switching power: 60 W or 125 VA resistive
• Initial contact resistance: 50 mΩ (at 6 VDC, 1 A)
• Contact off impedance: ≥10¹⁰ Ω at 100 VDC
• Insulation resistance: ≥10¹⁰ Ω between all insulated points at 100 VDC, 25 °C, 40% RH
• Service life: ≥5 × 10⁵ operations at rated current
Dielectric & Safety
• 750 VAC, 50/60 Hz for 1 minute between same-pole contacts
• 250 VAC RMS or 350 VDC across open contacts; 500 VDC across mutually insulated points
• ANSI/IEEE C37.90.1-1982 surge protection compatible
• FCC Part 68 surge withstand compliance
• Protection against relay state changes during power transitions
Power & Physical
• +5 VDC (±5%) supply: 4 A maximum, typically 1.35 A
• VME 6U double Eurocard form factor (160 × 233.35 mm)
• VMEbus specification C.1 (IEEE Std 1014-1987) compliant
– Key Features
• Built-in test monitors relay contacts and driving registers
• Magnetic latching eliminates power drain during idle state retention
• Dual-pole configuration supports concurrent user switching and contact verification
• Low contact resistance and minimal operating latency
• High dielectric isolation and insulation performance
– Typical Applications
Industrial control, automated test systems, safety-critical switching, process automation with power resilience requirements.
– Compatibility & Integration
Full VMEbus revision C.1 compliance enables direct integration into 6U VME chassis and backplanes. ANSI/IEEE surge protection compatibility supports installation in electrically harsh environments.
