1/6 RE 30041/02.12 Electric amplifiers Replaces: 01.11 Type VT-VRRA1-5...-2X/V0 Type VT-VRPA1-5...-2X/V0 Component series 2X Table of contents Features Contents Page – Suitable for controlling direct operated high-response valves with linear characteristic curve and position feedback Features 1 (Lvdt-DC/DC) Ordering code, accessories 2 – Analog amplifiers in Europe format for installation in 19" racks Front plate 2 – Controlled output stage Block diagram with pin assignment 3 – Enable input Technical data 4 – Outputs short-circuit-proof Unit dimensions 5 – Adjustment possibilities – Zero point valve Project planning / maintenance instructions / – Cable break detection for actual value cable additional information 5 – Position control with PID behavior Notice: The photo shows an example configuration. The delivered product differs from the figure. 2/6 Bosch Rexroth AG Hydraulics VT-VRRA1-5...-2X/V0, VT-VRPA1-5...-2X/V0 RE 30041/02.12 Ordering code, accessories VT- V R A 1 2X V0 Hydraulic component Customer version For valves with electrical feedback = R V0 = Catalog version Valve type 2X = Component series 20 to 29 p/Q high-response valve = P (20 to 29: Unchanged technical data High-response valve = R and pin assignment) Control Serial number for types Analog = A 527 = Size 6 537 = Size 10 Preferred types Amplifier type Material number For high-response valves with electrical position feedback VT-VRRA1-527-20/V0 0811405060 4WRPH6...L-2X VT-VRRA1-537-20/V0 0811405061 4WRPH10...L-2X VT-VRPA1-537-20/V0 0811405062 5WRP10...L-2X Suitable card holder: – Open card holder VT 3002-1-2X/32F (see data sheet 29928). Only for control cabinet installation! Front plate LED green Enable ON LED red U < U min. B B UB Adjustment Zero point Q A + 5% – zero + valve –U +U E E Lvdt Q B LED yellow Cable break RE 30041/02.12 VT-VRRA1-5...-2X/V0, VT-VRPA1-5...-2X/V0 Hydraulics Bosch Rexroth AG 3/6 Block diagram with pin assignment +U B z2 z32 +U 24 V= Supply B +10 V/10 mA Potentiometer DC +10 V z4 b32 supply 10 V/10 mA 10 V + + 15 V b4 b12 + Control zero 10 V DC b2 +15 V Neutral point 0 V z28 15 V 8.5 V= +10 V b2 Power zero max 40 V= z16 On Enable 100 k Safety logic z28 Control zero max 40 V red green U B +U B yellow 24 V z22 24 V= Lvdt. Error max 100 mA 0 V b14 Control zero zero + b22 10 V Δ S + 5% z30 + 0 V 10 V + z20 100 k b24 Signal Ref -0- or U E Inputs b20 b30 100 k St 3 + 10 V 0 V 1-5 Differential amplifier +U B b6 b8 121234 Size 6 Size 10 U s 4/6 Bosch Rexroth AG Hydraulics VT-VRRA1-5...-2X/V0, VT-VRPA1-5...-2X/V0 RE 30041/02.12 Technical data (For applications outside these parameters, please consult us!) Supply voltage Nominal 24 V =, U at z2 – b2 Battery voltage 21…40 V, B Rectified alternating voltage U = 21...28 V eff (one-phase, full-wave rectifier) Smoothing capacitor, Recommendation: Capacitor module VT 11110 (see data sheet 30750) separately at z2 – b2 (only necessary if the ripple of U >10 %) B Valve solenoid, max. A/VA 2.7/40 (size 6) 3.7/60 (size 10) Current consumption, max. A 1.7 2.7 The current consumption may increase with min. U B and extreme cable length to the control solenoid Power consumption (typical) W 37 55 Input signal (command value) b20: 0...±10 V Differential amplifier ｝ z20: 0...±10 V (R = 100 kΩ ) i Signal source Potentiometer 10 kΩ, Supply ±10 V from b32, z32 (10 mA) or external signal source Enable output stage At z16, U = 8.5...40 V, R = 100 kΩ, LED (green) on front plate lights up i Position transducer Supply b30: –15 V z30: +15 V Actual value signal b22: 0...±10 V, R = 20 kΩ i Actual value reference b24 Solenoid output Clocked current controller b6 – b8 I 2.7 A 3.7 A max 2 Cable lengths between amplifier and valve Solenoid cable: 20 to 20 m 1.5 mm 2 20 to 60 m 2.5 mm 2 Position transducer: 4 x 0.5 mm (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 Adjustment Zero point via trimming potentiometer ±5 % LED displays green: Enable yellow: Cable break actual value red: Undervoltage (U too low) B Error message – Cable break actual value – U too low z22: Open collector output to +U B B – ±15 V stabilization max. 100 mA; no error: +U B Circuit board format mm (100 x 160 x approx. 35) (W x L x H) Europe format with front plate 7 TE Plug-in connection Connector DIN 41612 – F 32 Ambient temperature range °C 0...+70 Storage temperature range °C –20...+70 Weight m 0.37 kg Notice Power zero b2 and control zero b12 or b14 or z28 must be separately led to the central ground (neutral point). RE 30041/02.12 VT-VRRA1-5...-2X/V0, VT-VRPA1-5...-2X/V0 Hydraulics Bosch Rexroth AG 5/6 Unit dimensions (dimensions in mm) Plug-in connector DIN 41612 - F 32 160 Project planning / maintenance instructions / additional information – The amplifier card may only be unplugged and plugged when de-energized. – The distance to aerial lines, radios and radar systems must be sufficient (> 1 m). – Do not lay solenoid and signal lines near power cables. – For signal lines and solenoid conductors, we recommend using shielded cables. The cable shield must be connected to the control cabinet extensively and as short as possible. – The valve solenoid must not be connected to free-wheeling diodes or other protective circuits. – The cable lengths and cross-sections specified on page 4 must be complied with. 35 Mains 24 V= 100 6/6 Bosch Rexroth AG Hydraulics VT-VRRA1-5...-2X/V0, VT-VRPA1-5...-2X/V0 RE 30041/02.12 Notes Bosch Rexroth AG © This document, as well as the data, specifications and other informa- Hydraulics tion set forth in it, are the exclusive property of Bosch Rexroth AG. It Zum Eisengießer 1 may not be reproduced or given to third parties without its consent. 97816 Lohr am Main, Germany The data specified above only serve to describe the product. No state- Phone +49 (0) 93 52 / 18-0 ments concerning a certain condition or suitability for a certain applica- documentation@boschrexroth.de tion can be derived from our information. The information given does not www.boschrexroth.de release the user from the obligation of own judgment and verification. It must be remembered that our products are subject to a natural process of wear and aging. RE 30041/02.12 VT-VRRA1-5...-2X/V0, VT-VRPA1-5...-2X/V0 Hydraulics Bosch Rexroth AG Notes Bosch Rexroth AG © This document, as well as the data, specifications and other informa- Hydraulics tion set forth in it, are the exclusive property of Bosch Rexroth AG. It Zum Eisengießer 1 may not be reproduced or given to third parties without its consent. 97816 Lohr am Main, Germany The data specified above only serve to describe the product. No state- Phone +49 (0) 93 52 / 18-0 ments concerning a certain condition or suitability for a certain applica- documentation@boschrexroth.de tion can be derived from our information. The information given does not www.boschrexroth.de release the user from the obligation of own judgment and verification. It must be remembered that our products are subject to a natural process of wear and aging. Bosch Rexroth AG Hydraulics VT-VRRA1-5...-2X/V0, VT-VRPA1-5...-2X/V0 RE 30041/02.12 Notes Bosch Rexroth AG © This document, as well as the data, specifications and other informa- Hydraulics tion set forth in it, are the exclusive property of Bosch Rexroth AG. It Zum Eisengießer 1 may not be reproduced or given to third parties without its consent. 97816 Lohr am Main, Germany The data specified above only serve to describe the product. No state- Phone +49 (0) 93 52 / 18-0 ments concerning a certain condition or suitability for a certain applica- documentation@boschrexroth.de tion can be derived from our information. The information given does not www.boschrexroth.de release the user from the obligation of own judgment and verification. It must be remembered that our products are subject to a natural process of wear and aging.