Bosch Rexroth VT-VSPA1(K)-1-1X Valve Amplifier


Bosch Rexroth VT-VSPA1(K)-1-1X amplifiers are used to control proportional pressure valves without electrical position feedback. The command values are pre-set via a differential input or a non-isolated input. The ramp time can be set separately for upwards and downwards ramps. The amplifier output supplies a current-controlled signal.

The 1X series valve amplifier has an analogue, Euro-card format for valve series: DBEP 6(A/B)-1X | DBE(M) 10-3X | DBE(M) 20-3X | DBE(M) 10-5X | DBE(M) 20-5X | DBE(M) 30-3X | (Z)DBE 6-1X.

Other features of the Bosch Rexroth VT-VSPA1(K)-1-1X valve amplifier include:

  • Differential input, switchable from voltage to current input
  • Additional non-isolated command value input
  • Ramp generator, separately adjustable for upwards and downwards direction
  • Cable break detection for current input 4 to 20 mA
  • Reverse polarity protection for the operating voltage
  • Short-circuit protection and cable break detection of the solenoid conductor
  • “Ready for operation” message
  • Clocked power output stage

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