GE VMIVME2170A Digital output module

Specific Parameters

Electrical Parameters
Output Channels: 32 independent digital outputs
Data Transfer: Supports 8-bit, 16-bit data transfer (D8(EO), D16 modes)
Output Current: 2.5mA to 300mA continuously adjustable, some versions support 2A peak output per channel
Output Voltage: Compatible with 5V DC to 30V DC wide-range load voltage
Isolation Performance: Optical isolation between channels and between channels and VMEbus, sustained isolation voltage 1kV, pulsed isolation voltage 6kV, insulation resistance ≥10MΩ
Power Supply: +5V DC from VME rack backplane, 10mA input current per channel
Protection Functions: Built-in short-circuit protection and overload protection, automatically limits output current when faulty
Address Configuration: 14-bit address selection via on-board DIP switches, supporting VMEbus address decoding
Environmental Parameters
Operating Temperature: 0°C to 55°C (non-condensing, some industrial versions support -40°C to 85°C)
Storage Temperature: -20°C to 85°C (extended to -55°C to 125°C for wide-temperature versions)
Relative Humidity: 20% to 80% (non-condensing, some models support 5% to 95% non-condensing)
EMC Immunity: Complies with EN 61326-1 standard, ESD protection ±8kV contact/±15kV air
Altitude Adaptation: Normal operating altitude ≤10,000 feet (3048 meters)
Certification Standards: CE (EMC), VMEbus Consortium compatibility certification
Mechanical Parameters
Dimensions: Double-height Eurocard form factor, 160mm (L) × 20.3mm (W) × 233.4mm (H) (3U VME standard size)
Weight: Approximately 380g (10 ounces)
Mounting Method: Plug-in installation in 3U VME rack, compliant with VMEbus mechanical specifications
Housing Material: Flame-retardant reinforced epoxy substrate with metal shield (UL 94 V-0 grade)
Indicators: Power Status (PWR, green steady on), Output Status (OUT, yellow on when corresponding channel outputs), Fault Status (ERR, red steady on)

Product Performance

The VMEbus data access time is ≤250ns, enabling fast response to master controller commands. The optical isolation design ensures no signal crosstalk under 1kV sustained high voltage and stable output under 6kV pulse impact, effectively resisting strong industrial electromagnetic interference.

The output switch has fast response speed: turn-on time ≤7μs and turn-off time ≤3.5μs in high-current mode; turn-on time ≤6μs and turn-off time ≤50μs in low-current mode, meeting high-frequency control requirements. Field-configurable pull-up resistors support external voltage access to realize voltage source output mode, adapting to different types of loads.

The module has a Mean Time Between Failures (MTBF) ≥153,100 hours (stress test value). After short-circuit protection is triggered, the output current is automatically limited, and normal operation can be resumed without manual reset after the fault is eliminated, adapting to continuous industrial operation scenarios.

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