Description
The voltage relays of the VME420 series are designed to monitor the frequency, undervoltage, overvoltage and the voltage between two threshold values (window discriminator function) in AC and DC systems.
Features
- Monitoring AC/DC systems for undervoltage, overvoltage and frequency in the voltage range of 0…300 V Different monit oring func tions selec table < U, > U or < U/> U , < f, > f or < f / > f Start-up delay, response delay, delay on release Adjustable switching hysteresis r. m. s. value measurement (AC + DC) Digital measured value display via multi-functional LC display Preset function (automatic assignment of basic parameters) LEDs: Power On, Alarm 1, Alarm 2 Measured value memory for ope.
VME420-Bender.pdf
