The 1-channel IM43-14-RI trip amplifier monitors 0/4…20 mA currents or 0/2…10 V voltages for overshoot and undershoot of limit

values.

The three limit values are set via the lateral rotary coding switches.

Additionally 18 V (at max. 35 mA) are provided for transmitters or sensors.

The measured values are transmitted via a

galvanically isolated analog output to other

devices.

The green LED indicates operational readiness. Three yellow LEDs indicate the switching status of the corresponding output.

The output mode of the relays and the hysteresis are set via DIP switches.

Live-zero signals are converted into dead-zero signals via DIP switches. In live-zero mode

the range between 4…20 mA is monitored.

Any state outside this range ( 24

mA) is signalled with an error message. In this

case the power LED will illuminate red, the relays drop off and a fault current is output. If a

faulty transmitter causes a short circuit, the relays drop off and a fault current is also output.

The fault current can be 0 mA or > 22 mA, depending on the DIP switch activated.

■ Monitors 3 limit values at a current or voltage input

■ Power supply of 2-wire or 3-wire transmitters/sensors

■ Input circuit: 0/4…20 mA; 0/2…10 V

■ Output circuit: 0/4…20 mA, 3 independent

limit value relays

■ Limit value relay adjusted via rotary coding

switches

■ Hysteresis and relay outputs adjusted via

DIP switch

■ Universal operating voltage

■ Complete galvanic isolation

■ Input reverse-polarity protected

■ CFMUS, TR CU