The AN533 servo amplifier has been designed to control single-magnet proportional valves and throttle valves with position controller
Protection against wrong polarity
Short-circuit proof
External ramp switch-off
Wide range of ramp adjustment
External enable (normally closed circuit)
Measurement sockets for setpoint voltage and magnet coil current and transducer signal
The negative of the power supply is at the same potential as the input zero voltages and the zero potential of the reference voltages. This allows several servo amplifiers to be operated from a common power supply
PWM output stages with high dynamic response and high carrier frequency
5 different setpoint inputs for the most common input voltages and currents giving great flexibility of input circuit
LED indicators for 'Power on', 'Ramp off' and 'Fail safe'
Potentiometers for ramps, zero overlap and amplification adjustable on the front plate

Type		Servo amplifier
Use		Controlling single-magnet proportional valves and throttle valves.
Connector		48 pole connector DIN 41612 F48
Supply voltage		24V DC (23...32V DC)
Output current		Imax = 2600 mA, 3 plug-selectable ranges: (0–800mA, 0–1600mA, 0–2600mA)
Inputs		1x 4–20mA, 100Ω 1x 0–20mA, 100Ω 1x 0–5V, 50kΩ 1x 0–10V, 100kΩ 1x user selectable R1000, 10kΩ/V
Dither		Factory setting approx. 140Hz Amplitude internally adjustable, approx. 0–20% of rated current
Measurement sockets (2mm)		VALVE CURRENT 1V = 1A, ±5%, COMMAND SIG.setpoint 0–10V
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