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Servo Amplifier

The AN404 servo amplifier module is intended for the control of proportional valves with two magnets. The snap-on housing enables the AN404 module to be mounted on normal carrier rails in control cabinets. The electrical connections are via a terminal strip and a flat connector (enable input).

The output stage is a duplex output stage with high-dynamic response and rapid deexcitation. These design features ensure rapid switch-off of the magnet coil (approx. 4...6 ms).

Four multi-turn resistances allow the adjustment of volumetric flow amplification (max. A, max. B), and Imin jump (min. A, min. B) to be made separately for each magnet.

The module has an integrated quadrant-sensitive ramp generator that allows adjustment of the ramp times (ramp up, ramp down) by means of two multi-turn resistances. The ramp can be switched off externally by an input (ramp off).

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