The nominal current and voltage values of the measuring inputs on the P632 can be set with the function parameters.

The nominal voltage range of the optical coupler inputs is 24 to 250 V DC. As an option binary signal input modules with a higher operate threshold are available.

The auxiliary voltage input for the power supply is also designed for an extended range. The nominal voltage ranges are 60 to 250 V DC and 100 to 230 V AC. A 24 to 60 V DC version is also available.

All output relays can be utilized for signaling and command purposes.

The optional PT 100 input is lead-compensated, balanced and linearized for PT 100 resistance thermometers as per IEC 751 / DIN EN 60751.

The optional 0 to 20 mA input provides open-circuit and overload monitoring, zero suppression defined by a setting, plus the option of linearizing the input variable via 20 adjustable interpolation points.

Two selectable measured values (cyclically updated measured operating data and stored measured fault data) can be output as a burden-independent direct current via the two optional 0 to 20 mA outputs. The characteristics are defined via 3 adjustable interpolation points allowing a minimum output current (4 mA, for example) for slave-side open-circuit monitoring, knee-point definition for fine scaling, and a limitation to lower nominal currents (10 mA, for example). Where sufficient output relays are available, a selectable measured value can be output in BCD-coded form by contacts.