Frequency Converter with Direction and Synchronization Monitor, 2-channel signal conditioner, Universal usage at different power supplies, Dry contact or NAMUR inputs, Input frequency 1 mHz ... 1 kHz, Current output 0/4 mA ... 20 mA, Relay contact and transistor output, Start-up override, Configurable by PACTware or keypad, Line fault detection (LFD), Rated voltage: 20 ... 90 V DC / 48 ... 253 V AC 50 ... 60 Hz, Input I, II: 2-wire sensor, sensor acc. to EN 60947-5-6 (NAMUR) or mechanical contact, Output I, II: signal, relay, Output V: analog