Бренды
p/Q closed loop amplifier VT-VARAP1-2X
p/Q closed loop amplifier VT-VARAP1-2X
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Component series 2X
- Suitable for controlling direct and pilot-operated high-response valves
- Amplifier with additional electronics (daughter card)
- Analog amplifiers in Europe format for installation in 19" racks
- Valve position control with PID behavior
- Pressure control with external pressure load cell
- Controlled output stage
- Enable input
- Short-circuit-proof outputs
- Adjustment options: Valve zero point
- Cable break detection for actual value cable and pressure sensor
- Fast energization and fast deletion for short actuating times
- External controller shut-off
- Suitable for pressure sensors (1...6 V, 0...10 V, 4...20 mA), see data sheet 30271
Type / version |
VT-VARAP1-527 | VT-VARAP1-537 | |||
Supply voltage |
nominal 24 V= battery voltage 21...40 V, rectified alternating voltage Ueff = 21...28 V (single-phase, full-wave rectifier) |
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Smoothing capacitor, separately |
Recommendation: Capacitor module VT 11110 (see data sheet 30750) (only necessary if the ripple of UB >10 %) |
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Valve solenoid, max. |
A |
2.7 | 3.7 | ||
Current consumption, max. 1) |
A |
1.7 | 2.7 | ||
Power consumption (typical) |
W |
37 | 55 | ||
Input signal (command value) |
b20: 0...±10 V – differential amplifier z20: 0...±10 V – differential amplifier (Ri= 100 kΩ) |
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Input signal (command value p) |
z12: 0...+10 V – differential amplifier z10: 0 V – differential amplifier |
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Actual value from the pressure sensor |
z14: 4...20 mA – current input b16: 0...+10 V/1...+6 V – voltage input b18: 0 V – reference |
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Pressure controller OFF |
b10: 6...40 V= | ||||
External enquiry pressure controller active |
z24: 24 V/0.1 A max. | ||||
Limit frequency |
for applications ≤ 30 Hz | ||||
Signal source |
Potentiometer 10 kΩ Supply with ±10 V from b32, z32 (10 mA) or external signal source |
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Enable output stage |
at z16, U= 8.5...40 V, Ri = 100 kΩ LED (green) on front plate lights up | ||||
Sensor supply |
z6: +15 V/35 mA, Ri ~ 25 Ω | ||||
Position transducer |
Supply |
b30: -15 V (25 mA) z30: +15 V (35 mA) |
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Pilot control valve |
Actual value signal |
b22: 0...±10 V, RL = 10 kΩ/Ref. b24 | |||
Main stage |
Actual value reference |
b26: 0...±10 V, RL = 10 kΩ/Ref. b28 | |||
Solenoid output |
Clocked current controller | ||||
Imax |
A |
2.7 | 3.7 | ||
Cable lengths between amplifier and valve |
Solenoid cable |
m |
20 | ||
m |
20 … 60 | ||||
Number of wires / line cross-section |
Position transducer |
4 x 0.5 mm2 (shielded) | |||
Pressure sensor |
4 x 0.5 mm2 (shielded) | ||||
Special features |
Cable break protection for actual value cable Position control with PID behavior Pulsed output stage Fast energization and fast deletion for short actuating times Short-circuit-proof outputs External controller shut-off |
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Adjustment |
Zero point via trimming potentiometer ±5 % Command value attenuator Q Pressure controller KP, KI and KD Sensitivity pressure load cell Zero point pressure load cell |
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LED displays |
green |
Enable | |||
yellow |
Cable break position transducer | ||||
red |
Supply voltage (UB too low) | ||||
yellow |
Pressure controller OFF | ||||
yellow |
Pressure controller working | ||||
both yellow LEDs are flashing |
Cable break pressure sensor | ||||
Error message |
Cable break actual value |
z22: Open collector output to +UB max. 100 mA; no error: +UB |
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Plug-in connection |
Plug to DIN 41612-F32 | ||||
Operating temperature |
°C |
0+70 | |||
Storage temperature range |
°C |
-20 … +70 | |||
Weight |
m |
kg |
0.49 |
1) Current consumption may increase with min. UB and extreme cable lengths to the control solenoid
Power zero b2 and control zero b12 or b14 or z28 must be separately led to the central ground (neutral point).
For applications outside these parameters, please consult us!
Pressure sensor connection versions