Parameter

Value

Voltage

12–15 Vdc†; 16 V absolute maximum

Current

16 inputs × 3.6–4.6 mA: 75 mA maximum with all inputs on†

Protection

0.25 A resettable fuse, TVS diode, common-mode choke

Isolation

field I/O domain; supply it from a separate supply to keep the field domain isolated from logic and motor grounds

The opto supply powers the input LEDs of all 16 inputs (DI1–DI8, limits, home, latch). The digital outputs do not draw from it, but they share its return (Opto GND).