Overview

The AC Digital Input modules are externally powered and accommodate two circuit voltages for up to 8 inputs each. Two common terminals are provided for each circuit. AC power applied between the common terminal and an input causes the input to turn ON. Each channel on the module has a green LED state indicator to show when a digital input is ON. Logic in the controller allows the state to be inverted when necessary. A green blinking status LED on the module indicates when the module is being scanned, while a red status LED lights up when module diagnostics exist.

Key Features

• Inputs per Module: 16 (sinking)
• Input Voltage Range: 80 VAC to 264 VAC
• Peak Voltage: 264 VAC
• AC Frequency: 47 Hz to 63 Hz
• Galvanic Isolation: 2 groups of 8 inputs (350VAC max.)
• ON Voltage Level: 75 VAC
• OFF Voltage Level: 20 VAC
• Input Impedance: 48 K ohms nominal
• Input Current: 1 mA nominal @ 120 VAC, 60 Hz; 2 mA nominal @ 230 VAC, 50 Hz
• Minimum ON Current: 0.3 mA
• Maximum OFF Current: 0.2 mA
• OFF to ON Response Time: 4 ms + 1.5-line cycles maximum
• ON to OFF Response Time: 4 ms + 2-line cycles maximum

Specifications Table