Servo Amplifier VM 7
to activate servo control valves
maximum currents up to 70mA
amplification, dither, and offset adjustment
unipolar 24V power supply
narrow snap-on type 22.5mm
The VM7 Amplifier is used to activate servo control valves. Loads of up to 70mA can be connected.
A set value voltage between 0...10V is used to activate the servo amplifier. At maximum set value, an output current of 0...70mA is adjustable with helical trimmer G. The amplifiers factory setting is 60mA. If required, it is possible to shift the zero point from 0...8mA using helical trimmer 0.
Potentiometer DA serves to change the dither amplitude from 0...6mA, potentiometer DF to change the dither frequency from 150...400Hz. Factory setting is 3mA at 250Hz.
The device has a galvanic separation universal power supply, that allows a connection at dc and ac supply voltages (19Vdc...36Vac). Easy to mount, the amplifier simply requires snapping onto TS35 mounting rails.