The ADN 406 has been developed as a digital servo-amplifier for proportional valves with one magnet
The valve output stages function with fast de-excitation, signifying that the magnet current can be set to 0 in approx. 3–4ms
Extremely suitable for control tasks in the 0–30Hz frequency range
Equipped with a triple-controller cascade
Input sensor system equipped with interchangeable sensor modules
Sensor input modules are equipped with a second-order low-pass filter
The external sensors can be supplied with 24V/0.5A DC from the device
A PTC thermistor assures full thermistor-type protection against external short-circuit
Alarms are issued via a separate output
Equipped with six opto-decoupled inputs
All settings are made using the ADN configurator via an RS232 interface linked to a PC or laptop computer

Type		Servo amplifier
Use		Proportional valves with one magnet
Supply voltage		24V DC, nominal (22...28 V) DC
PWM (valve current)		9.7kHz with fast de-excitation and short-circuit monitoring
Inputs		5 opto-decoupled, of which 1 x Enable, 1 x Ramp OFF and 4 x setpoint (internal)
Alarm output		1 x 24V/100mA
Dither generator		Selectable, 50 to 150Hz, amplitude 0 to 10%, referred to the selected current
Imin		Imin can be selected as a jump or constant
Temperature range		-20°C...+60°C
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