Bosch Rexroth Hydraulics MDSD1K-2X/1 R978886413 Rexroth
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The MDSD is a high current amplifier that controls proportional valves with one or two force solenoids. All 12V solenoids can be controlled over the entire 10 to 28VDC power supply range to simplify design. Of course, 24V solenoids can be used in 24V power systems.
- On board, replaceable fuse
- Reverse polarity protection for voltage supply
- Pulse Width Modulated (PWM) outputs
- PWM frequency adjustable from 75 – 275 Hz
- Maximum and minimum current separately adjustable for both solenoids
- High current driver, regulated to within 1.0%, continuous operation
- Infinite duration short circuit protection on both outputs
- Reference voltage provided for control via an external potentiometer (>1K Ohm), EMI/RFI resistant
- Differential inputs for external voltage sources (+/-2.5 or +/- 5.0VDC), all adjustments are made via multi-turn potentiometers
- No deadband, ramp time 0.2 to 10.0 sec, separately adjustable for both solenoids, A/B solenoid ramp
