R901010980
The R901010980 (VT-MSPA2-1-10-V0-0) is a modular amplifier designed by Bosch Rexroth Indramat, specifically for controlling direct operated proportional directional valves without position feedback. Requiring a 24 Volt DC input, the amplifier comprises a power supply unit containing a making current limiter. It's designed to provide the internal positive and negative voltages needed by the amplifier. This amplifier comes with an enable function, allowing the power output stages to control the valve smoothly. It also has a front plate LED, displaying the enable signal. Notably, the power output is directed to a solenoid and its peak solenoid current per output stands at 2.7 Amps.
The R901010980 (VT-MSPA2-1-10-V0-0) stands out for its enhanced safety features, which cover protection against short-circuits and monitoring for cable breaks and over-current events in the solenoid conductor. It also includes a ramp generator that controls the incline of output- a function that is not influenced by downstream step functions or amplitude attenuators. It has 12 screw terminals for connections, fits with a protection class of IP20, and measures 40 x 79 x 85.5 mm. It operates optimally between 0 to 50 degrees Celsius, weighs 140 grams and can be mounted onto a top hat rail. For safety purposes, connections should only be made when the module is off, and the module should be situated at least a meter away from any radio units.
