Acromag AVME9430-i Isolated Digital Output

The Acromag AVME9430-i is a 32-channel isolated digital output module for VMEbus systems. It has individual solid-state relay (SPST-NO) outputs with galvanic isolation between channels and from the VMEbus, protecting control circuits from electrical noise and transients. Each channel supports 0 to 1A DC output at 0 to 40°C, with individual source or sink configuration.

The module delivers 2.0ms maximum response time and includes on-board thermal protection with status indication and optional selective channel reset on over-temperature. User readback of output states is supported.

Technical Specifications

• DTB slave; A24/A16:D16/D08 (EO)


• Address modifiers: 29H, 2DH, 39H, 3DH


• Memory map: 1K byte (standard or short address space)


• Compliant with VME Specifications revision C.1 (October 1985) and IEC 821-1987 Output Characteristics


• 32 channels, SPST-NO solid-state relays


• Output voltage "On": 0.5V DC maximum at 1A DC


• Output voltage "Off": 0 to 55V DC


• Off-state leakage: 5µA DC maximum


• On-state current: 0 to 1A DC (0–40°C); derated 10mA/°C above 40°C


• Response time: 2.0ms maximum at 1A DC


• TTL and CMOS logic compatible Isolation


• Individual channel isolation via SSR


• 250V AC or 354V DC continuous isolation (channel-to-channel and from VMEbus)


• 125V AC or 125V DC continuous isolation between DC SSR channels


• Surge withstand: 1500V AC for 60 seconds


• Dielectric strength: 1250V AC for one minute Power & Environmental


• Supply: +5V DC, 2.5A maximum (all outputs ON with LEDs)


• Operating temperature: 0 to 70°C


• Storage temperature: −55 to 85°C


• Humidity: 5% to 95% at 60°C, non-condensing

Key Features

• Per-channel source/sink configuration for flexible load interfacing


• User-readable output state verification


• Thermal management with status bits and optional auto-reset


• Optional front-panel PASS/FAIL LED indicators (−L option)


• 6U VMEbus form factor

Typical Applications Industrial actuator control, valve switching, relay logic replacement, and protection-class digital switching in noise-prone environments.

Compatibility & Integration Outputs connect via P2 connector rows A and C. Module is directly compatible with Acromag output termination panels.