VT-MSPA 1-525-10/V0
The Bosch Rexroth Indramat VT-MSPA 1-525-10/V0 proportional amplifier delivers precise solenoid control with an integrated PWM power output stage capable of 2.5 A current rating for industrial automation applications. Belonging to the VT-VSPA Proportional Amplifiers series, this device provides differential voltage input control and adjustable ramp functionality to optimize dynamic response. Equipped with a zero-point trimmer and built-in electronic overload protection via an SMD fuse, the VT-MSPA 1-525-10/V0 ensures both long-term reliability and simplified maintenance. Its compact design and robust construction make it suitable for demanding environments where stable valve actuation is required.
The VT-MSPA 1-525-10/V0 amplifier accepts a 0 to +10 V command value signal through a differential voltage input with 100 kΩ input resistance, ensuring accurate order-value interpretation. The operating voltage range of 35 V to 21 V (optimal at 24 V) supports a broad supply tolerance, while the power supply of 24 VDC ensures compatibility with standard industrial systems. The internal PWM signal generation power output stage operates over a frequency range of 180 to 450 Hz, providing smooth current delivery and minimizing electromagnetic interference. Power consumption is rated at 60 VA under nominal load conditions, and the unit conforms to IP20 protection class standards. The zero-point trimmer enables precise offset correction, and the incorporated electronic overload protection safeguards the amplifier from transient conditions.
Operational performance is enhanced by an adjustable ramp generator that independently controls both rise and fall times, allowing tailored response profiles for varying valve dynamics. The amplifier features a status LED indicator for immediate visual feedback on operational state and fault conditions. Mounting on a standard DIN rail simplifies installation, while the removable connection strip reduces downtime during servicing. The VT-MSPA 1-525-10/V0 operates reliably within a 0 to +50 °C operating temperature and can be stored safely between -25 to +85 °C storage temperature. Its dimensions—35 mm width, 184 mm height, and 120 mm depth—along with a lightweight chassis of 0.3 kg, support space-constrained panel designs.
Integration of the VT-MSPA 1-525-10/V0 into larger control architectures is straightforward, with standard differential voltage interface and PWM outputs compatible with a wide range of proportional valves. The amplifier’s electronic overload protection and zero-point adjustment reduce the need for external safety circuits and trimming modules. Ideal applications include material handling systems, packaging machinery, hydraulic test stands, and mobile equipment where precise proportional control is critical. Combined with Bosch Rexroth Indramat’s comprehensive service network and one-year replacement guarantee, the VT-MSPA 1-525-10/V0 provides a dependable solution for industrial automation challenges.
