Артикул: RX7147
Valve amplifier for proportional valves without electrical position feedback VT-MSPA
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Description
- Component series 2X
- Suitable for controlling proportional valves and pump controls without electric position feedback
- Easy valve selection of the Rexroth valves for the industrial hydraulics
- Characteristic curves of the valves stored in the device
- Valve optimization via push-buttons
Features
- Command value input 0 ... ±10 V oder 4 ... 20 mA
- Reverse polarity protection of the operating voltage
- Ramp generator up and down is separately adjustable
- Zero point setting
- Command value adjustment
- Characteristic curve generator
- Clocked power output stage
- Output short-circuit-proof
- LED status displays
- Measuring sockets for: actual current value, internal current command/setting
- All valve parameters adjustable
Product description
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Block diagram VT-MSPA1...
| See "Product description" |
| 1 | Power supply unit |
| 2 | Differential amplifier |
| 3 | Command value summing device |
| 4 | Zero point setting |
| 5 | Inverter |
| 6 | Single ramp |
| 7 | 4-quadrant ramp |
| 8 | Command value attenuator |
| 9.1 | Characteristic curve generator (standard) |
| 9.2 | Characteristic curve generator ("4WRPH 6 …SO855" version) |
| 10 | Current controller |
| 11 | Clock generator |
| 12 | Output stage |
| 13 | Enable or inverter or ramp off or 4Q ramp |
| 14 | Switching logics/fault recognition |
| 15 | Digital output |
Block diagram VT-MSPA2...
| See "Product description" |
| 1 | Power supply unit |
| 2 | Differential amplifier |
| 3 | Command value summing device |
| 4 | Zero point setting |
| 5 | Inverter |
| 6 | Single ramp |
| 7 | 4-quadrant ramp |
| 8 | Command value attenuator |
| 9 | Characteristic curve generator |
| 10 | Current controller |
| 11 | Clock generator |
| 12 | Output stage |
| 13 | Enable or inverter or ramp off or 4Q ramp |
| 14 | Switching logics/fault recognition |
| 15 | Digital output |
Status description LEDs
| Indicator light | Operating state | Display mode | Meaning |
| "Digital input" LED (yellow) | Normal operation | Permanent light on/off | Digital input status |
| Setup | Flashing | Standard setup active | |
| Setup | Off | Expert setup active | |
| Setup | On/flashing/flickering | Expert setup: Digital input setting | |
| "Ready" LED (red/green) | Normal operation | Permanent light green | Module ready for operation |
| Normal operation | Permanent light red | Error | |
| Normal operation and setup | Flashing red/green | Valve setting changed | |
| Normal operation and setup | Flashing red | Inadmissible valve number | |
| Normal operation | Off | Module not ready for operation | |
| Setup | Flashing green | Expert setup active |
Description of the LED display 1)
| DI | Enable 2) |
| t | Ramp |
| Z/B | Zero point / pilot current |
| G | Command value attenuator |
| S | Step level command value |
| ☺ | Ready for operation |
 | 1st quadrant (positive command value rising) |
 | 2nd quadrant (positive command value falling) |
 | 3rd quadrant (positive command value rising) |
 | 4th quadrant (positive command value falling) |
| 1) | A detailed description is contained in the operating instructions 30232-B |
| 2) | Function of the digital input can be adjusted in the setup |
Dimensions
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Цена по запросу
Цена по запросу
Цена по запросу
Цена по запросу
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