Error: LED red (FAULT: AS-i communication error / periphery fault) Function display: LED yellow (indication channels AI1...AI2) Total current consumption from AS-i: < 250 mA Shortcode: ClassicLine 2AI C II 3D Protection: IP 50 Housing materials: PA, Piercing contacts: CuSn6 surface nickel and tin-plated Operating voltage: 26.5...31.6 V DC SKU WWF6XPE4HZ0VVS Product Name: AC522A Electrical design: 2 inputs 4...20 mA Ambient temperature: -10...50 °C Operation: LED green (indication AS-i voltage)