Product Description

The Bosch VT-MSPA2-1-10b-V0-0 is an industrial valve amplifier. It is designed for use in industrial applications that require control of direct operated proportional valves. In the product documentation Bosch has listed several precautions and safety instructions related to amplifier use. The most important precaution is that personnel should only wire the VT-MSPA2-1-10b-V0-0 while it is powered off. The signal lines should not be close to power lines. Use of free-wheeling diodes for the solenoid conductors must be avoided. Distance between the amplifier and any radio or radar must be at least 1 meter. The command value lines must always be shielded: this can be achieved by connecting the cable shield to ground on the module side. Bosch also recommends shielding the solenoid conductors. Only instruments with high input impedance should be used for making measurements on the amplifier module.

In the condition as supplied, the setting of the clock frequency corresponds to the requirements of the WRA 6 and WRA 10 valves. Rotating the "f" potentiometer changes the valve hysteresis and may lead to disturbing noise developments. The VT-MSPA2-1-10b-V0-0 amplifier input is rated for nominal 24 Volts DC. Power consumption of the module is less than 48 VA, and the current consumption is always less than 2 Amps. Thermal overload protection is provided through an on-board fuse. Twelve screw terminals are provided for external connections. The VT-MSPA2-1-10b-V0-0 mounts on a top hat rail. Its ingress protection class is IP20. Dimensions of the VT-MSPA2-1-10b-V0-0 are 40 x 79 x 85.5 millimeters and the amplifier module weight is 0.14 kilograms. The recommended ambient temperature range is 0 to 50 degrees Celsius. Only qualified personnel should install and operate the VT-MSPA2-1-10b-V0-0 amplifier.