The VT-VSPA1-1-11 in the VT-VSPA1 series is supplied by Rexroth, Indramat and Bosch. The VT-VSPA1 proportional valve amplifier controls the solenoid current of Rexroth proportional valves without LVDT position feedback. The VT-VSPA1-1-11 offers 11 component families, factory-distributed additional features, and an operating voltage of +24 VDC + 40%-5%. Additional features include 32-pole male multipoint connectors and connection type front plates as well as operational control of pressure valves.
The VT-VSPA1-1-11 is an analog circuit amplifier board from Rexroth, also known as a proportional valve amplifier. It is suitable for the control of all direct acting and pilot operated pressure proportional valves with no electrical position feedback and only a solenoid valve as a regulating element. Its rated voltage is applied at the value input set point and a stable voltage from the power supply can be used either directly or via an external set point potentiometer.
This amplifier board has a power supply with an input current limiter that provides all internal positive and negative supply voltages. The input current limiter prevents input current spikes caused by filter capacitors in the current output stage. The VT-VSPA1-1-11 also has a variety of control functions, including the addition of external control values applied to the differential input port, the addition of control values applied to the adder and ramp function generator to form an internal control value signal.
In addition, the VT-VSPA1-1-11's supporting card rack types include VT19101, VT19102, VT19103 and VT19110, as well as type VT12302 fully enclosed card racks for installation in the control cabinet only. The supporting power supply unit is VT-NE30-2X type, compact power supply 115/230VAC→24VDC, 108VA.
In industrial automation systems, the VT-VSPA1-1-11 is often used for the control of electric and hydraulic actuators, which play an important role in automation and mechanical applications, as well as applications requiring high power output and high precision control.
