VT-VSPA1-1-1X-VT13281A-U141

VT-VSPA1 Proportional Amplifiers

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The VT-VSPA1-1-1X-VT13281A-U141 is a Bosch-produced analog amplifier specially designed to regulate direct and pilot operated pressure valves without requiring electric position feedback. This single solenoid piloted amplifier comes with numerous built-in features, such as reverse polarity safety for voltage supply, cable break safeguard for 4-20mA current input, and defensive measures for solenoid conductor short-circuits and breakages. It contains a differential ramp generator with adjustable upwards and downwards direction, which switches from voltage to current input. Predetermined settings on delivery include a ramp time of 5 seconds, 100mA pilot current, 80mA peak output current, and 200 Hertz clock frequency.

The amplifier functions optimally at a standard 24 volts DC, with an allowable fluctuation range from +22 volts DC to +35 volts DC. It's designed with a consumption limit of 50VA peak power and a maximum current intake of 1.8 Amps, having a ramp time range set by an S14 between 30 milliseconds and 1 second or 5 seconds. Outfitted with a 32-pole male connector interface, it operates seamlessly within a temperature range of 0 to 50 degrees Celsius, while enduring storage temperatures from -25 to +85 degrees Celsius. Weighing only 0.1 kilograms, its front plate measures about 128.4 x 20 millimeters and its depth extends up to 165 millimeters. Assembling should only commence when the device is de-energized.