We are woking on a servo hydraulic system for investigating the dynamic behaviour of fluid flow in a piping systems.
The system consist of a double acting electrohydraulic servoactuator attached to a stainless steel single acting low friction cylinder, which was attached to the water-filled piping system.
The electrohydraulic servoactuator consisted of a low friction double acting cylinder with a position transducer (LVDT) concentrically mounted in the rear of the rod and a servovalve manifold mounted to the actuator. The rather short stroke length required (variable) is 1mm to 40mm.
The controls included a function generator to generate sine, triangular waves from 1 Hz up to 10Hz, a servoamplifier for position control of the actuator. Pressure of the water in the piping needs not to be controlled. The equipment also included a hydraulic power unit.
E.g of the system running setting:
a) Stroke length = 11mm
b) Frequency = 3Hz
c) Waveform type = Sine wave
Our vendor has suggested some specialised servo hydraulic control software which is expensive. We therefore would like to explore the possibility to control it with PLC. Can anyone offer some advice how this can be done? Can someone recommended the components on the servo hydraulic part? Particularly, how do we integrate the PLC with the function generator?
The system consist of a double acting electrohydraulic servoactuator attached to a stainless steel single acting low friction cylinder, which was attached to the water-filled piping system.
The electrohydraulic servoactuator consisted of a low friction double acting cylinder with a position transducer (LVDT) concentrically mounted in the rear of the rod and a servovalve manifold mounted to the actuator. The rather short stroke length required (variable) is 1mm to 40mm.
The controls included a function generator to generate sine, triangular waves from 1 Hz up to 10Hz, a servoamplifier for position control of the actuator. Pressure of the water in the piping needs not to be controlled. The equipment also included a hydraulic power unit.
E.g of the system running setting:
a) Stroke length = 11mm
b) Frequency = 3Hz
c) Waveform type = Sine wave
Our vendor has suggested some specialised servo hydraulic control software which is expensive. We therefore would like to explore the possibility to control it with PLC. Can anyone offer some advice how this can be done? Can someone recommended the components on the servo hydraulic part? Particularly, how do we integrate the PLC with the function generator?