The AN404 servo amplifier module is intended for the control of proportional valves with two magnets
Snap-on housing enables the AN404 module to be mounted on normal carrier rails in control cabinets
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
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)

Type		Servo amplifier
Use		Control of proportional valves with two magnets
Supply voltage		24V DC (22...32 V DC)
Temperature range		0...+50°C
Output stage		Duplex output stage with high dynamic response and rapid deexcitation (approx. 4...6 ms)
PWM frequency		Approx. 5kHz
Dither		Approx .150 Hz factory setting Amplitude adjustable on the 'Dither' potentiometer within a range of approx. 0 - 10% of the nominal current setting
Input (various input modules are available)		±10V (differential input) 12mA±8mA (monitored diff. input) ±20mA (differential input)
Measuring sockets		Current: valve current: 1V/A (10%) Command: setpoint signal (0...10V)
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