Analogue amplifier card for 4/3 proportional directional valves of type 4WRE
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1 Analogue amplifier card for / proporional direcional valves of ype WRE RE 09/07.05 Replaces: 06.0 /0 Type VT-VRPA-.-X/ Series X H66 Table of conens Conens Page Feaures Ordering code Funcion Block circui diagram / pin assignmen and 5 Technical daa 6 and 7 Indicaor / adjusmen elemens 8 and 9 Uni dimensions 0 Engineering / mainenance noes / supplemenary informaion 0 Feaures Suiable for conrolling direc operaed / proporional direcional valves wih elecrical posiion feedback, ype WRE, sizes 6 und 0, componen series X Designed as prined circui board in Euro-forma 00 x 60 mm and suiable for insallaion in a rack Command value inpus: Differenial inpu ±0 V Four callable command value inpus ±0 V Curren inpu o 0 ma Inversion of he inernal command value signal via V inpu or by means of jumpers Selecion of ramp ime hrough quadran recogniion (V inpu) or ramp ime call-ups (V inpus) (opion T5) Changeover of he ramp ime range by means of jumpers Characerisic curve correcion by means of separaely adjusable jump heighs and maximum values Enable inpu Oupu signal ready for operaion Measuring sockes ha can be swiched over (opion T5) Reverse polariy proecion for volage supply Power supply uni wih DC/DC converer wihou raised zero poin
2 /0 Bosch Rexroh AG Hydraulics VT-VRPA-.-X/ RE 09/07.05 Ordering code VT-VRPA X V0 * Analogue amplifier in Euro-card forma For conrolling WRE 6-X valves ) = For conrolling WRE 0-X valves ) = Series 0 o 9 = X (0 o 9: unchanged echnical daa and pin assignmen) T = T5 = Furher deails in clear ex ) Wih one ramp ime Wih five ramp imes Basic version ) Noe: Suiable only for / proporional direcional valves ) Addiional funcions e.g. oupu sage monioring, acual value monioring or ramp-ready signal on enquiry Suiable card holders: 9 rack ypes VT 90, VT 90, VT 90 and VT 90 (see RE 9768) Enclosed card holder ype VT 0 (see RE 00) wih use of a blind plae TE/HE (maerial no. R900000) Open card holder ype VT 00-X/8 (see RE 998) Only for insallaion in conrol cabine! Suiable power supply uni: Type VT-NE0-X, see RE 999 Compac power supply uni 5/0 VAC VDC, 08 W Tes equipmen: Type VT-PPV-X see RE 9687
3 RE 09/07.05 VT-VRPA-.-X/ Hydraulics Bosch Rexroh AG /0 Funcion Power supply uni [] The amplifier card is provided wih a power supply uni wih making-curren limier. I supplies all he inernally required posiive and negaive volages. The making-curren limier prevens high making-curren peaks caused by smoohing capaciors in he curren oupu sage. Command value preselecion The inernal command value signal is generaed from he sum (summaion [6]) of he exernal command value signal applied o differenial inpu [] and curren inpu [], called signal [] and zero poin offse [5] (zero poin poeniomeer Zw ). The following is valid: Normalized value Curren inpu Differenial inpu Comm. value meas. socke Direcion of flow 00 % ma 0 V 0 V P o B, A o T 0 % ma 0 V 0 V 00 % 0 ma 0 V 0 V P o A, B o T 0 % < ma ** 0 V **If he curren inpu is no acivaed or in he case of a cable break of he command value cable, he resuling inernal command value signal is 0 %. There is no changeover beween curren and volage inpus. The inpus are permanenly available (see erminal assignmen). Command value call-ups [] Four command value signals, w o w, can be called up. Exernal command value volages (command values o ) are fed forward eiher direcly hrough regulaed volage oupus +0 V and 0 V or via exernal poeniomeers. If he command value inpus are conneced direcly o he regulaed volages, he command values can be adjused using poeniomeers w o w. If exernal poeniomeers are used, he inernal poeniomeers ac as aenuaors or limiers. Only one call-up is possible a a ime. If several call-ups are acivaed simulaneously, call-up has lowes prioriy, call-up highes prioriy. The acive call-up is signalled by a yellow LED on he fron panel. Command value inversion [7] The command value ha was generaed inernally from inpu signals, command value call-ups and he -zero poin offse signal can be invered wih he help of an exernal signal or jumper J. The applicaion of an exernal inversion signal is signalled by an LED ( ) on he fron panel. Enable funcion [8] The enable funcion enables he curren oupu sages and passes he inernal command value signal on o he ramp generaor. The enable signal is indicaed by an LED on he fron panel. When he enable is cu in, he inernal command value changes (wih any preseleced command value) according o he se ramp ime. This ensures ha a conrolled valve does no open abruply. Ramp generaor [9] The ramp generaor limis he gradien of he conrol variable. The downsream sep funcions and ampliude aenuaors do no exend or shoren he ramp ime. Jumper J can be used o se he ramp ime o minimum (< ms) (ramp off). Exernal ramp ime adjusmen The ramp ime se inernally can be exended using an exernal poeniomeer. The seing can be checked wih he help of he measuring socke. In he case of a cable break, he inernal preseing will be used auomaically. Characerisic curve generaor [] The adjusable characerisic curve generaor can be used o adjus he sep-change heigh and maximum values separaely for posiive and negaive signals in accordance wih he hydraulic requiremens. The acual curve shape hrough he zero poin is no sep-like, bu linear. Ampliude limier [] The inernal command value is limied o approx. ±0 % of he nominal range. Oscillaor [] The oscillaor generaes he conrol signal for he inducive posiion ransducer. Demodulaor [5] The demodulaor generaes he acual value signal of he valve spool posiion from he posiion ransducer signal. 00 % 0 V Posiion conroller [7] The posiion conroller is opimised o he individual valve. Curren oupu sage [8] The curren oupu sage generaes he clocked solenoid curren for he proporional valve. The solenoid curren is limied o.5 A o.8 A per oupu. The curren oupu sage oupus are shor-circui-proof. In he case of an inernal faul signal or missing enable, he oupu sages are deacivaed. Faul deecion [9] The posiion ransducer cable is moniored for cable break and shor-circui on he primary side, and he oupu sages for excessive curren. [ ] = Cross-reference o he block circui diagram on page
4 /0 Bosch Rexroh AG Hydraulics VT-VRPA-.-X/ RE 09/07.05 Block circui diagram / pin assignmen: VT-VRPA-.-X/V0/T inernal command value Solenoid b Ramp ime exernal Comm. value 5 ±0 V + Comm. value 6-0 ma Comm. value Comm. value Comm. value Comm. value Command value call-ups + Inversion Enable Operaing volage V 0 V b b0 d0 d d d6 +5 V d d8 b b6 b b b8 b6 b b d d d6 d8 w b0 d8 z0 z i u w w w UL 00 µf L0 6 F 9 J, J Zw 5 Gw+ Gw- S+ S- J 7 J - DC DC +5V +7,5 V +5V M0 5 V 7,5V 5 V w d6 d0 z I z6 z8 z z ok + z8 - z + - z z6 z0 Gx Zx 6 x d b8 z z6 z8 u u u u 8 Enable UP/DOWN max + ok 7 Conroller U 8 5 Enable Faul recogniion d0 ok & d UL 9 b b0 F b6 b8 z0 Solenoid a Inducive posiion ransducer Acual value Ready for operaion +0 V / 5 ma 0 V / 5 ma Measuring signal Ramp ime M0 5 Sysem ground Power supply uni Differenial inpu Curren inpu Comm. value selecion logic Zero poin adjusmen Command value summaor Command value inversion Enable funcion Ramp generaor 5 Char. curve generaor Ampliude limier Command value oupu Oscillaor Demodulaor Acual value oupu Valve spool posiion conroller Curren oupu sage Faul deecion
5 RE 09/07.05 VT-VRPA-.-X/ Hydraulics Bosch Rexroh AG 5/0 Block circui diagram / pin assignmen: VT-VRPA-.-X/V0/T5 inernal command value Solenoid b Solenoid a Inducive posiion ransducer + + V 0 V b b0 d0 d d d6 d d8 b b6 b b b8 b6 b b d d d6 d8 b0 d8 z0 z b8 z z6 z8 +5 V w u u w 8 L0 u u i u w w A B UL 00 µf 0 C 6 Zw DC 5 5 D J - DC + E ok Gw+ F S+ J +5V +7,5 V +5V M0 5 V 7,5V 5 V Q 9 Gw- J, J S w d6 d0 z 0 U 8 I z6 z8 z z ok + z8 - z + - z z6 8 z0 Gx Zx 6 x d 7 5 d0 ok & d UL 9 b A BC DEF b0 0 v b6 b8 z ABCDEF Ramp ime exernal Comm value 5 ±0 V Comm value 6-0 ma Comm. value Comm. value Comm. value Comm. value Command value callups Inversion Enable Operaing volage Enable max Conroller Enable Faul recogniion Acual value Ready for operaion +0 V / 5 ma 0 V / 5 ma Measuring signal Quadran operaion Ramp callups M0 Sysem ground 5 Power supply uni Differenial inpu Curren inpu Comm. value selecion logic Zero poin adjusmen Command value summaor Command value inversion Enable funcion Ramp generaor Ramp ime selecion logic 5 Char. curve generaor Ampliude limier Command value oupu Oscillaor Demodulaor Measuring poins Acual value oupu Valve spool posiion conroller Curren oupu sage Faul recogniion Measuring poin changeover
6 6/0 Bosch Rexroh AG Hydraulics VT-VRPA-.-X/ RE 09/07.05 Technical daa (for applicaions ouside hese parameers, please consul us!) Operaing volage U O VDC +0 % 0 % Operaing range: Upper limi value u O () max 5 V Lower limi value u O () min 8 V Power consumpion P S < VA Curren consumpion I < A Fuse I s A medium ime lag, can be replaced Inpus: Analogue Command values o (poeniomeer inpus) U i 0 o ±0 V; R i (reference is M0) Command value 5 (differenial inpu) U i 0 o ±0 V; R i > 50 kω Command value 6 (curren inpu) I i o 0 ma; load R l = 00 Ω Ramp ime exernal U i 0 o +0 V; R i = 0 kω (inernally raised o +5 V; reference is M0) Digial Command value call-ups U 8.5 V o U O call-up acivaed; R i U 0 o 6.5 V no call-up; R i Ramp call-ups U 8.5 V o U O call-up acivaed; R i U 0 o 6.5 V no call-up; R i Quadran recogniion U 8.5 V o U O ON; R i U 0 o 6.5 V OFF; R i Command value inversion U 8.5 V o U O ON; R i U 0 o 6.5 V OFF; R i Enable U 8.5 V o U O ON; R i U 0 o 6.5 V OFF; R i Adjusmen ranges: Zero balancing (poeniomeer Zw ) ±0 % Command value (poeniomeers w o w ) 0 o 0 % Ramp imes (poeniomeers o 5 ) 0 ms o 5 s; can be changed over, 0. o 50 s Sep-change heigh (poeniomeers S+ and S ) 0 % o 50 % Ampliude aenuaor (poeniomeers G+ and G ) 0 % o 0 % (valid for seing of sep-change heigh o 0 %)
7 RE 09/07.05 VT-VRPA-.-X/ Hydraulics Bosch Rexroh AG 7/0 Technical daa (for applicaions ouside hese parameers, please consul us!) Oupus: Command value signal U ±0 V ± %; I max = ma Acual value signal U ±0 V ± %; I max = ma Measuring poin signal (opion 5) U ±0 V ± %; I max = ma Ready for operaion U > 6 V; 50 ma (in case of faul: U < V; R i = 0 kω) Regulaed volages U ±0 V ± %; 5 ma; shor-circui-proof Curren oupu sages I 0 o.5 A; shor-circui-proof; clocked ca. 5 khz Oscillaor U ±5 V SS per oupu; 0 ma F 5.6 khz ± 0 % Measuring sockes U ±0 V ± %; I max = ma Type of connecion 8-pin male connecor, DIN 6, form F Card dimensions Euro-card 00 x 60 mm, DIN 9 Fron panel dimensions: Heigh HE (8. mm) Widh soldering side TE (5.08 mm) Widh componen side TE Permissible operaing emperaure range ϑ 0 o +50 C Sorage emperaure range ϑ 5 C o +85 C Weigh m 0.7 kg (ne) Noe: For deails regarding environmen simulaion ess in he field of EMC (elecromagneic compaibiliy), climae and mechanical sress, see RE 09-U (declaraion on environmenal compaibiliy).
8 8/0 Bosch Rexroh AG Hydraulics VT-VRPA-.-X/ RE 09/07.05 Indicaor / adjusmen elemens VT-VRPA-.-X/V0/T J Ramp ime 0. o 50 s 0.0 o 5 s J OFF ON Sep funcion - Gw+ S+ Gw- S- J J6 No funcion! Reserve Zw w w w w J J Do no change! (Ramp ime symmery) J Zx J5 Gx x w J7 VRPA Do no change! (Inernal reference volage) No funcion! for special funcions LED lamps: Ready for operaion (green) Enable (yellow) Exernal inversion Measuring sockes: x, w, Measuring signal Measuring zero J OFF ON Ramp funcion J Inversion Invering No invering Jumper plugged Jumper open Facory seing of jumpers Poeniomeers (some wih LED lamps): Zw Zero poin balancing w Command value w Command value w Command value w Command value Ramp ime Can be adjused on he prined-circui board: Gw+ Ampliude aenuaor for posiive command values Gw Ampliude aenuaor for negaive command values S+ Sep-change heigh for posiive direcion S Sep-change heigh for negaive direcion If you change sealed poeniomeer seings, he warrany will become void!
9 RE 09/07.05 VT-VRPA-.-X/ Hydraulics Bosch Rexroh AG 9/0 Indicaor / adjusmen elemens VT-VRPA-.-X/V0/T5 J Ramp ime J Sep funcion 0. o 50 s 0.0 o 5 s OFF ON No funcion! Reserve -Q T Gw+ S+ Gw- S- J J6 Zw w w w w 5 J J Zx Do no change! (Ramp ime symmery) Gx J5 J x ABCDEF v0 - vf w v VRPA Measuring poin selecor swich Do no change! (Inernal reference volage) J7 No funcion! for special funcions J OFF ON Ramp funcion J Inversion Invering No invering LED lamps: Ready for operaion (green) Enable (yellow) Exernal inversion Q Quadran recogniion T Measuring sockes: x, w, v Measuring signal Measuring zero Jumper plugged Jumper open Facory seing of jumpers Poeniomeers (some wih LED lamps): Zw Zero poin balancing w Command value w Command value w Command value w Command value Ramp ime Ramp ime Ramp ime Ramp ime 5 Ramp ime 5 Can be adjused on he prined-circui board: Gw+ Ampliude aenuaor for posiive command values Gw Ampliude aenuaor for negaive command values S+ Sep-change heigh for posiive direcion S Sep-change heigh for negaive direcion If you change sealed poeniomeer seings, he warrany will become void!
10 0/0 Bosch Rexroh AG Hydraulics VT-VRPA-.-X/ RE 09/07.05 Uni dimensions (nominal dimensions in mm) - HE (8,) Zw w w w w x w VRPA Ø 8 TE (0) Engineering / mainenance noes / supplemenary informaion For furher informaion, see Produc descripion and commissioning insrucions VT-VRPA-.-X/ (RE 09-B). Bosch Rexroh AG Hydraulics Zum Eisengießer 9786 Lohr am Main, Germany Telefon +9 (0) 9 5 / 8-0 Telefax +9 (0) 9 5 / 8-58 documenaion@boschrexroh.de This documen, as well as he daa, specificaions and oher informaion se forh in i, are he exclusive propery of Bosch Rexroh AG. I may no be reproduced or given o hird paries wihou is consen. The daa specified above only serve o describe he produc. No saemens concerning a cerain condiion or suiabiliy for a cerain applicaion can be derived from our informaion. The informaion given does no release he user from he obligaion of own judgmen and verificaion. I mus be remembered ha our producs are subjec o a naural process of wear and aging.
11 RE 09/07.05 VT-VRPA-.-X/ Hydraulics Bosch Rexroh AG /0 Noes
12 /0 Bosch Rexroh AG Hydraulics VT-VRPA-.-X/ RE 09/07.05 Noes Bosch Rexroh AG Hydraulics Zum Eisengießer 9786 Lohr am Main, Germany Telefon +9 (0) 9 5 / 8-0 Telefax +9 (0) 9 5 / 8-58 documenaion@boschrexroh.de This documen, as well as he daa, specificaions and oher informaion se forh in i, are he exclusive propery of Bosch Rexroh AG. I may no be reproduced or given o hird paries wihou is consen. The daa specified above only serve o describe he produc. No saemens concerning a cerain condiion or suiabiliy for a cerain applicaion can be derived from our informaion. The informaion given does no release he user from he obligaion of own judgmen and verificaion. I mus be remembered ha our producs are subjec o a naural process of wear and aging.
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