Bucher Hydraulics LRV-1 Installation And Startup Manual
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Bucher Hydraulics LRV-1 Installation And Startup Manual

Lift control valve
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M 00 034
Rev. -
Date: 10/15
Installation and startup guide
LRV-1 Lift Control Valve, Size 175 / 350 / 700
NTA-2 power supply unit and DELCON
Software version 2.160 + 2.170
Issue: 02.2012
Reference: 300-I-9010050-E-28
1/86

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Summary of Contents for Bucher Hydraulics LRV-1

  • Page 1 M 00 034 Rev. - Date: 10/15 Installation and startup guide LRV-1 Lift Control Valve, Size 175 / 350 / 700 NTA-2 power supply unit and DELCON Software version 2.160 + 2.170 Reference: 300-I-9010050-E-28 Issue: 02.2012 1/86...
  • Page 2 Because the products are subject to continual improvement, we reserve the right to amend the product specifications contained in this catalogue. The original language and legal terminology of all Bucher Hydraulics documentation is exclusively German. Bucher Hydraulics cannot be held liable for any possible errors in translation.

  • Page 3: Table Of Contents

    LRV-1 lift control valve Contents Page ..............
  • Page 4 LRV-1 lift control valve ................

  • Page 5: General, Product Description

    LRV-1 lift control valve 1 General, product description General, product description This guide is an integral part of the product. It describes the product’s safe use in all phases of operation and is valid for all model series that are referred to.

  • Page 6: Important Notes

    1 General, product description LRV-1 lift control valve Important notes 1.4.1 Subassemblies This guide differentiates between the following subassemblies: LRV‐1 lift control valve DELCON electronic control card NTA-2 power supply unit on NTA-2 1.4.2 Intended use Lift control valve for operating hydraulically-driven passenger and goods lifts.

  • Page 7: Conformity

    LRV-1 lift control valve 1 General, product description 1.4.3 Conformity The product was designed and developed in conformity with the following directives and standards: EC-directive 95/16/CE Standards EN 81-2:1998 EMC standards EN 12015:2004 EN 12016:2004+A1:2008 300-I-9010050-E-28/02.2012 7/86...

  • Page 8: Product Identification

    1 General, product description LRV-1 lift control valve Product identification 1.5.1 Nameplate 1 Valve type = LRV 175 2 Flow ring = R 175 3 Spool = K 251 4 Manual emergency-lowering valve with LRV175-1 R175/K251/VN preload = VN 120 / 150 l/min...

  • Page 9: Model Code

    LRV-1 lift control valve 1 General, product description 1.5.3 Model code K 251 EN00 LRV 175-1 R 175 Valve type/size = LRV 175-1 = LRV 350-1 = LRV 700-1 Flow range: flow rate/type LRV 175-1 15 … 45 l/min = R 45 46 …...

  • Page 10: Lrv-1 Lift Control Valve

    1 General, product description LRV-1 lift control valve LRV‐1 lift control valve Legend Maximum-pressure setscrew Air-bleed screw Bypass-pressure setscrew Hall sensor Lowering-speed limiter (valve Main filter size 700 only) Flow-rate measuring system Pressure-relief valve Emergency-lowering valve Pilot filter DOWN spool Test port, G½...

  • Page 11: Simplified Hydraulic-Electrical Diagram

    LRV-1 lift control valve 1 General, product description 1.6.1 Simplified hydraulic–electrical diagram ’ ’ Legend Pressure-relief valve DOWN spool Test point, G½ Check valve Pressure gauge UP spool Pressure gauge shut-off Pipe-rupture valve screw/ valve Ball valve Feedback sensor Elec. emergency lowering (opt.) (non-contacting) Speed set.

  • Page 12: Electrical Connection Diagram

    1 General, product description LRV-1 lift control valve 1.6.2 Electrical connection diagram 4 x 12 V = 48 V 2 x 24 V = 48 V L1, L2, L3, PE Legend DELCON Electrical emergency-lowering NTA‐2 12 or 24 VDC (option) ⇒...

  • Page 13: Factory Settings

    LRV-1 lift control valve 1 General, product description 1.6.3 Factory settings All valves are factory-set to the values for the particular installation and then tested. S Pressure-relief valve set to the maximum working pressure S Bypass pressure as per the calculated minimum static pressure S Emergency-lowering valve set to 5 …...
  • Page 14 1 General, product description LRV-1 lift control valve 2. DOWN section / Emergency-lowering valve The down section is constructed in a similar way to the up section. S Initial position: DOWN spool (14) is closed leak-free in the 0 position...
  • Page 15 LRV-1 lift control valve 1 General, product description 3. Flow-rate measuring system S The oil flows through the flow meter (12) in both the up and down directions S The baffle-disc is displaced axially as a function of the flow rate...

  • Page 16: Technical Data

    1 General, product description LRV-1 lift control valve 1.6.5 Technical data Legend Flow-rate measuring system Orientation of Z-port Pressure-relief valve Pressure gauge shut-off screw View: valve sizes 175 and DOWN solenoid (valve sizes 175 and 350)/ UP solenoid Pressure gauge shut-off valve...
  • Page 17 LRV-1 lift control valve 1 General, product description Type Ports Ports Weight Max. press. Z, T, P Z1, Z2, Z3 [kg] [bar] LRV 175-1 G¼ LRV 350-1 G1½ G¼ LRV 700-1 G2, G2½, G2 G¼, G¼, G 22.5 Type Dimensions [mm]...

  • Page 18: Pressure Drop

    1 General, product description LRV-1 lift control valve 1.6.6 Pressure drop LRV 175-1 R 45 R 90 R 175 R 250 Flow ring (R) 12.5 DOWN (Z-T) Spool K 251 Spool K 91 UP (P-Z) LRV 350-1 R 250 R 350...
  • Page 19 LRV-1 lift control valve 1 General, product description LRV 700-1 R 700 R 1000 Flow ring (R) 12.5 DOWN (Z-T) Spool K 1001 UP (P-Z) Legend Pressure drop [bar] min. required dynamic pressure Flow rate Q [l/min.] 500 cSt (Motorex Corex HLP 46 at approx. 2 °C) 300 cSt (Motorex Corex HLP 46 at approx.

  • Page 20: Delcon Electronic Card

    1 General, product description LRV-1 lift control valve DELCON electronic card The DELCON controls the oil flow - and therefore the lift's travel profile - in accordance with a preset curve. NOTICE! Electrostatic discharge (ESD) The DELCON can be damaged by incorrect handling.

  • Page 21: Description Of Function

    LRV-1 lift control valve 1 General, product description 1.7.2 Description of function S The lift control system sends the command signals to the DELCON via potential-free relay contacts or semiconductors. S The feedback value is compared with the demand travel curve and controlled throughout the whole travel.

  • Page 22: Technical Data

    1 General, product description LRV-1 lift control valve 1.7.3 Technical data Weight: 130 g 30.5 General description S Digital electronic card for the LRV‐1 valve S Enhanced ride comfort S Automatic reduction of demand signal if nominal speed is not...

  • Page 23: Travel And Switching Diagram For Normal Travel Distance

    LRV-1 lift control valve 1 General, product description 1.7.4 Travel and switching diagram for normal travel distance * Motor run-on time of 0.5 … 1 s Y-Δ Y starting time of up to approx. 3 s with Y-Δ, ** Drop-out delay of 0.5 … 1 s, after drop K1 and K2 not until Δ...

  • Page 24: Travel And Switching Diagram For Short Travel Distances

    1 General, product description LRV-1 lift control valve 1.7.5 Travel and switching diagram for short travel distances The electronics of the LRV‐1 valve make it possible to control stops at mezzanines and similar short travel distances with the same ride comfort as in normal travel.

  • Page 25: Nta-2 Power Supply Unit

    LRV-1 lift control valve 1 General, product description S Speed can be set by means of parameter ”K6 speed” (or ”K7 speed” / ”K8 speed”) in the Options menu to match the floor spacing (distance between stops). S Acceleration can be adjusted separately via parameters ”K6 acceleration”...
  • Page 26 S After closing the safety circuit a command signal K1 … K8 can be applied only after a 0.5 seconds delay. S Delays of up to 2 s may occur until the lift starts. Bucher Hydraulics therefore discourages the operation of the power supply unit in the safety circuit. 300-I-9010050-E-28/02.2012...
  • Page 27 LRV-1 lift control valve 1 General, product description The jumper JP2 connects the terminals 12 of the command signal terminal strip to the terminal PE of the mains voltage connection, earthing the reference potential of the command inputs (standard setting).

  • Page 28: Technical Data

    1 General, product description LRV-1 lift control valve 1.8.2 Technical data 8 12 151.7 Weight 0.675 kg Mains voltage NTA‐2/115 100/(110)115/120 VAC ±10 % NTA‐2/230 220/230/240 VAC ±10 % NTA‐2/400 380/400(415)/440 VAC ±10 % Frequency 50/60 Hz ±10 % Power consumption 20 W during travel, approx.

  • Page 29: Terminal Assignments

    LRV-1 lift control valve 1 General, product description 1.8.3 Terminal assignments L1c/L2c L1b/L2b L1a/L2a N/L1 Legend Control signals Demand / feedback monitoring Connection for feedback cable Emergency power supply Mains voltage connection Terminal Description Mains Voltage Connection NTA‐2/115 NTA‐2/230 NTA‐2/400...
  • Page 30 1 General, product description LRV-1 lift control valve Terminal Description Command signals (with setting command input to “Bucher K1..K8”) K1 Fast UP K2 Slow UP K3 Fast DOWN K4 Slow DOWN K5 Inspection speed K6 Speed reduction (auxiliary speed) K7 Speed reduction (auxiliary speed)

  • Page 31: Iwk-1 Feedback Cable

    LRV-1 lift control valve 1 General, product description IWK-1 feedback cable Note: The feedback cable must be run from the lift control valve directly to the NTA‐2 power supply unit without any intermediate terminals. Any discontinuity in the feedback cable (break, kink, etc.) can endanger trouble-free operation.

  • Page 32: Safety Instructions

    2 Safety instructions LRV-1 lift control valve Safety instructions This documentation (manual) advises the user of the dangers and re­ maining risks that can arise even when the product is being used properly and for its intended purpose. It is essential to take note of the safety instructions in each section.

  • Page 33: Operating Controls And Indicators

    LRV-1 lift control valve 3 Operating controls and indicators Operating controls and indicators Illustration shows valve size 350, valve size 700 varies Item Description Tools Maximum-pressure setscrew 2 x open-ended spanner, 13 mm A/F Bypass-pressure setscrew Open-ended spanner, 10 mm A/F...

  • Page 34: Emergency-Lowering Valve (En 81.2 Art. 12.9)

    3 Operating controls and indicators LRV-1 lift control valve Emergency-lowering valve (EN 81.2 art. 12.9) DANGER! Car descent Leads to death or serious injuries. Before operating the emergency-lowering valve, make sure that there are no people or materials in the lift shaft.

  • Page 35: Display Of The Operating Status

    LRV-1 lift control valve Operating controls and indicators Display of the operating status Legend for the LEDs 1 RUN Ready for operation (green). Lights when ready for travel; off during parameterisation 2 UP UP travel (yellow). Lights during upwards travel (fast and slow) 3 DOWN DOWN travel (yellow).
  • Page 36 Operating controls and indicators LRV-1 lift control valve Display during travel During travel the display indicates the status of the command inputs K1 … K8. For this purpose the command signals are displayed coded as powers of 2: S K1 =...
  • Page 37 LRV-1 lift control valve Operating controls and indicators S If no key pressed within 5 minutes, the DELCON automatically quits parameterisation mode (changes to the currently displayed parameter are not saved). Display during parameterisation S Parameter name e.g. P1.01 = Start speed UP S P1.xx: Demand value parameters...

  • Page 38: Handterminal

    Operating controls and indicators LRV-1 lift control valve Handterminal Keys Demand values menu Options menu Zero point display Information menu ↑ Steps to previous parameter ↓ Steps to next parameter Increases the value of the current parameter Decreases the value of the...

  • Page 39: Password

    LRV-1 lift control valve Operating controls and indicators Note: In order to quit parameterisation mode: S Either press keys ↑ and ↓ simultaneously (changes to the currently displayed parameter are saved) S unplug cable and wait for about 3 seconds (changes to the currently displayed parameter are NOT saved) DELCON will return to RUN mode.
  • Page 40 Operating controls and indicators LRV-1 lift control valve If either no password has previously been set (i.e. password is “0000"), or a password is set and the user is currently logged in the display will read + change – log out...
  • Page 41 LRV-1 lift control valve Operating controls and indicators Press the key ↑ several times until the display reads Password + execute Press the key + If the display reads the user is either logged in + change – log out already, or no password is set (i.e.
  • Page 42 Operating controls and indicators LRV-1 lift control valve The display will read Commands Information list Press the key ↑ several times until the display reads Password + execute Press the key + The display will read + change – log out Press the key –...

  • Page 43: Windelta32 - Pc Program

    LRV-1 lift control valve Installation and commissioning WinDelta32 - PC program Software, RS232-adapter and cable can be ordered as part no. 3007010867+ RS232-USB converter can be ordered as part no. 3007014722 The software can be downloaded free of charge from: http://www.bucherhydraulics.com...

  • Page 44: Installation And Commissioning

    4 Installation and commissioning LRV-1 lift control valve Installation and commissioning Installation Orientation of the ball-valve outlet As standard, the ball-valve outlet is rear-facing (code H) Alteration to left (L) or right (R) is possible. Note: The ball-valve outlet must not be turned to a new position unless the hose is first disconnected.

  • Page 45: Power Supply Unit

    LRV-1 lift control valve 4 Installation and commissioning S Do not mount hoses under tensile strain S Observe minimum bending radia S Protect hoses against mechanical damage (e.g. from sharp edges) S Support hoses with hose clamps (approx. 1.5 m away from valve) 4.2.2...

  • Page 46: Wiring The Power Supply Unit

    4 Installation and commissioning LRV-1 lift control valve 4.2.3 Wiring the power supply unit Legend Fast UP Slow UP Fast DOWN Slow DOWN Inspection speed -24V Auxiliary speed +24V Auxiliary speed Auxiliary speed +24V +24V Reference potential 6a/6b Common 0...100%...

  • Page 47: Electrical Emergency-Lowering 2 X 24 Vdc

    LRV-1 lift control valve 4 Installation and commissioning 4.2.4 Electrical emergency-lowering 2 x 24 VDC Note: The operator must undertake any further measures required to ensure short-circuit and overvoltage protection. If a mains (line) failure occurs, the power supply unit can be powered by an external battery supply (2 x 24 V) through terminals 12, 19 and 20.

  • Page 48: Electrical Emergency-Lowering 1 X 12 Or 1 X 24 Vdc (Option)

    4 Installation and commissioning LRV-1 lift control valve 4.2.5 Electrical emergency-lowering 1 x 12 or 1 x 24 VDC (option) WARNING! Do not activate the electrical emergency-lowering valve unless the safety circuit is closed! In an emergency the lift car can be lowered by operating the emergency lowering valve electrically.

  • Page 49: Commissioning/Settings

    LRV-1 lift control valve 4 Installation and commissioning Commissioning/settings 4.3.1 Checking the test numbers S The valve test number is stamped on the body (below the manual pump) ⇒ page 8, chapter 1.5.2. S DELCON test number: ⇒ page 20, chapter 1.7, item 7 Note: Always quote the test number when making enquiries.

  • Page 50: Bypass Pressure Setting

    Installation and commissioning LRV-1 lift control valve 4.3.3 Bypass pressure setting Setting the bypass pressure with the Handterminal or Miniterminal Make sure that the car is empty Slacken the locknut for bypass-pressure setscrew (2) Unscrew bypass-pressure setscrew (2) approx. 2 turns...
  • Page 51 LRV-1 lift control valve Installation and commissioning Setting the bypass pressure with the pressure gauge, without Handterminal Make sure that the car is empty Make sure that the pressure gauge shut-off screw/ shut-off valve is undone (the pressure gauge indicates changing pressures in the lift...
  • Page 52 Installation and commissioning LRV-1 lift control valve Setting the bypass pressure with the car in sight, with or without Handterminal Make sure that the car is empty Only if the setting is performed WITHOUT Handterminal: Bridge the two terminals of the relay output connected to the lift control system (either 17a, 18 or 17b, 18 –...

  • Page 53: Setting Of The Max. Operating Pressure (En 81-2, Art. 12.5.3)

    LRV-1 lift control valve Installation and commissioning 4.3.4 Setting of the max. operating pressure (EN 81-2, art. 12.5.3) Adjusting the maximum pressure Make sure that the pressure gauge shut-off screw is undone (the pressure gauge indicates changing pressures in the lift system...

  • Page 54: The Demand/Feedback Response Difference, Siu-1

    Installation and commissioning LRV-1 lift control valve 4.3.5 The demand/feedback response difference, SIU-1 The SIU-1 function monitors the deviation of the actual travel curve from the demand travel curve. S If the permissible deviation is exceeded the DELCON electronic card autonomously triggers an emergency stop.The LEDs ERROR and...

  • Page 55: Positioning The Shaft Switches For The Deceleration Distance

    LRV-1 lift control valve Installation and commissioning 4.3.8 Positioning the shaft switches for the deceleration distance The spacing of the shaft switches depends on the car speed ⇒ next page Aux. speed e.g. v=50 % v=50 % v=100 % v=100 %...

  • Page 56: Setting The Mechanical Zero Point

    Installation and commissioning LRV-1 lift control valve Required deceleration distance Guidelines for positioning the deceleration switches. Examples Deceleration distance ”X” for direct (1:1) drive e.g.: v = 0.4 m/s → x = 0.4 m Deceleration distance ”X” for indirect (2:1) drive e.g.: v = 0.63 m/s →...

  • Page 57: 4.3.10 Pilot Filters

    LRV-1 lift control valve Installation and commissioning Using a 3 mm Allen key, slacken the adjusting/clamp screw (14) a little Remove Allen key (it has a magnetic influence) Hold the feedback sensor by the plug and move it axially until the feedback reading is less than ±0.05 V...
  • Page 58 Installation and commissioning LRV-1 lift control valve Remove filter Clean in the proper manner or exchange the filter Insert the filter Screw in the filter screw Open the ball valve. 10. Switch main switch ON The pilot filters are now clean 300-I-9010050-E-28/02.2012...

  • Page 59: 4.3.11 Pipe Rupture Valve Test

    LRV-1 lift control valve Installation and commissioning 4.3.11 Pipe rupture valve test A precondition for testing the pipe-rupture valve is that the lift must be working properly, without any faults. DANGER! Uncontrolled descent (free fall) Leads to death or serious injuries.
  • Page 60 Installation and commissioning LRV-1 lift control valve Send DOWN command Wait until the car is accelerating When the triggering speed is reached, the pipe rupture valve closes and travel stops. If the Handterminal is being used: Note: Releasing the + key on the Handterminal stops the travel, and the maximum feedback value is displayed.
  • Page 61 LRV-1 lift control valve Installation and commissioning Testing the pipe-rupture valve (up to DELCON software version 2.100) NOTICE! Uncontrolled descent (free fall) Can cause damage to the support frame and car. The elevator car must come to rest within 3 … 5 metres.
  • Page 62 Installation and commissioning LRV-1 lift control valve 11. Reset the "SIU Type" parameter in the DELCON to the setting noted down (⇒ step 1.) 12. Reset the "Demand val. red" parameter in the DELCON to the set­ ting noted down (⇒ step 3.) 13.

  • Page 63: Operation

    LRV-1 lift control valve 5 Operation Operation Parameterisation with Handterminal Demand values Options Hall sensor Information ⇒ 5.5.1 ⇒ 5.5.2 ⇒ 5.5.3 ⇒ 5.5.4 = Demand value O Demand value = Commands O Information list - Start speed - Start speed...

  • Page 64: Parameterisation With Miniterminal

    5 Operation LRV-1 lift control valve Parameterisation with Miniterminal Ê Demand values Ë Options Ì Hall sensor Í Informationen ⇒ 5.5.1 ⇒ 5.5.2 ⇒ 5.5.3 ⇒ 5.5.4 - P1.01 Start speed = - P2.01 Valve type - Zero point - F4.01 1) Error - P1.02 Min.

  • Page 65: Overview Control Parameters (Pid)

    LRV-1 lift control valve 5 Operation Overview control parameters (PID) Dynamic: Static: Dynamic: P sol. dynamic P sol. static P sol. dynamic sol. dynamic sol. static sol. dynamic D sol. D sol. D sol. Legend Demand signal Solenoid control voltage...
  • Page 66 5 Operation LRV-1 lift control valve Parameter name Setting range By default Effect Note (Miniterminal) = 0.40 V Slow speed 0.20 … 2.50 V Increasing values: Low values for “slow speed”: O 0.40 V Higher travel speed unsteady slow travel (P1.07 / P1.20)

  • Page 67: Options Menu

    LRV-1 lift control valve 5 Operation Parameter name Setting range By default Effect Note (Miniterminal) I sol. dynamic 100 … 1000 ms LRV 175-1*: Increasing values: * all types except for LRV 175-1 120 bar = 450 ms Effective in...
  • Page 68 5 Operation LRV-1 lift control valve Parameter name Setting range By default Effect Note (Miniterminal) SIU type 1 (1) 1 (1) SIU-1: monitoring of the demand/feedback difference 1 + 4 (2) (P2.03) Monitoring starts as soon as the command “Fast” is present Monitoring ends when the command “Slow”...
  • Page 69 LRV-1 lift control valve 5 Operation Parameter name Setting range By default Effect Note (Miniterminal) K6/K7/K8 speed 20 … 100 % K6: 20 % Fast speed is reduced with of fast travel K6, K7, K8 (P2.08 / P2.10 / K7: 30 % speed P2.12))
  • Page 70 5 Operation LRV-1 lift control valve Results of the combined settings of “SIU type” and “Relay function” Setting Setting Event Indication Indication Relay Emergenc Reset SIU Type relay ERROR SIU-1 actuates function stop only SIU-1 immediately when the travel command is cancelled...

  • Page 71: Zero Point / Hall Sensor Menu

    LRV-1 lift control valve 5 Operation Command evaluation Command input Bucher K1..K8 ELRV K1..K8 binary 3 Sign. K1..K8 B1..B4 Terminal 21 22 23 21 22 23 1 / 3** 21 22 23 Command K1 K2 K3 K4 K5 K6 K7 K8 K1 K2 K3 K4 K5 K6 K7 K8 B1 B2 B3 B4...

  • Page 72: Information Menu

    5 Operation LRV-1 lift control valve 5.5.4 Information menu Parameter name Setting range By default Effect Note (Miniterminal) Language/ English Deutsch User language set ”English US” causes the Sprache (=German) “Min. pressure” (P1.02) to be Deutsch displayed in psi (=German)

  • Page 73: Calculating The Demand Values For Maximum Speed

    LRV-1 lift control valve 5 Operation Parameter name Setting range By default Effect Note (Miniterminal) Drive up Max. 1.3 million Number of UP travels Relevelling UP (anti creeping) operations are not counted. Drive down Max. 1.3 million Number of DOWN travels Relevelling DOWN operations are not counted.

  • Page 74: Faults / Fault-Finding

    Operation LRV-1 lift control valve Faults / Fault-finding 5.7.1 Check list for fault correction Fault Cause Corrective action Page (chapter) S Motor / pump not running S Check connection No UP travel S Wiring fault S Check wiring 46 (4.2.3)
  • Page 75 LRV-1 lift control valve Operation Fault Cause Corrective action Page (chapter) S Oil level in power unit is S Top-up when car is at Car does not reach land­ 49 (4.3.2) below minimum lowest landing S Leakage: valve - cylinder...
  • Page 76 Operation LRV-1 lift control valve Fault Cause Corrective action Page (chapter) S SIU-1 (demand/feedback S DELCON settings are too Lift starts DOWN, then stops monitoring) activates, LED “SIU-1” on DELCON lights up S Acceleration is too high S Decrease the acceler­...
  • Page 77 LRV-1 lift control valve Operation Fault Cause Corrective action Page (chapter) S Pressure drop is in the S None Leakage in hydraulic sys­ tem (test only when oil is permissible range cold): Pressure drop in approx. 3 minutes is not more...

  • Page 78: Error Messages

    Operation LRV-1 lift control valve 5.7.2 Error messages Display Handterminal Message Message Cause Analysis / Remedy Monitoring (Miniterminal) Saved Reset Effect Err:None — — — — — No error Err:Input-V+ Positive voltage from At start of travel If at When the...
  • Page 79 LRV-1 lift control valve Operation Display Handterminal Message Message Cause Analysis / Remedy Monitoring (Miniterminal) Saved Reset Effect Err:Command Incorrect combination Ensure correct At start of travel If at When the of commands commands are signalled standstill, cause has During travel immediately;...

  • Page 80: Warnings

    Operation LRV-1 lift control valve 5.7.3 Warnings Display Handterminal Message Message Cause Analysis / Remedy Monitoring (Miniterminal) Saved Reset Effect Warn:Board-T. Temperature of At standstill Immediately When the DELCON exceeds cause has 70 °C been removed Ambient temperature Lower the ambient...

  • Page 81: Informations

    LRV-1 lift control valve Operation Display Handterminal Message Message Cause Analysis / Remedy Monitoring (Miniterminal) Saved Reset Effect Warn:Leakage Automatic null point At start of travel If at Immediately equalisation below standstill, (save only) (26) Not monitored if -0.20 V...

  • Page 82: Maintenance

    6 Maintenance LRV-1 lift control valve Maintenance Maintenance schedule This service plan is just a guide. Adjustments or changes should be un­ dertaken by the installer. Work to be carried out Time Valve Check internal leakage Check external leakage Check the maximum pressure setting...

  • Page 83: Hydraulic Fluids

    Bucher Hydraulics AG and received their written approval. If the use of Shell Tonna S is not an option, the oil additive supplied by Bucher Hydraulics AG can be added to a standard HLP hydraulic oil as an alternative: Motorex Hydrogliss 202 The previously supplied Bucher Hydraulics Additive Oil Art.

  • Page 84: Tested And Approved Hydraulic Fluids With Biodegradable Characteristics

    Maintenance LRV-1 lift control valve 6.2.3 Tested and approved hydraulic fluids with biodegradable characteristics S The listed oils can be used with standard seals and without any special modifications to the hydraulic components. S When an existing installation is converted to a new type of fluid, you should follow the instructions for the relevant fluid/manufacturer.

  • Page 85: Useful Service Life

    LRV-1 lift control valve Maintenance 6.2.4 Useful service life The hydraulic oil must be changed by obligation or filtered if on analysis the following limiting values have been reached: Element Limit Value [mg/kg] Iron Aluminium Copper Lead Zinc +5 in comparison with new oil...

  • Page 86: Installation Guide For Down Pilot Valve

    Maintenance LRV-1 lift control valve Installation guide for DOWN pilot valve Exchanging the DOWN pilot valve Switch main switch OFF Close the ball valve Vent all pressure in the valve block (manual emergency lowering valve) Remove solenoid and the A and C parts...

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