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MR ECOTAP VPD MD&C Operating Instructions Manual

Motor-drive unit and control unit
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THE POWER BEHIND POWER.
Operating instructions
®
®
ECOTAP
VPD
MD&C. Motor-drive unit and control unit
6117331/06 EN

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Summary of Contents for MR ECOTAP VPD MD&C

  • Page 1 THE POWER BEHIND POWER. Operating instructions ® ® ECOTAP MD&C. Motor-drive unit and control unit 6117331/06 EN...
  • Page 2 Generally the information provided and agreements made when processing the individual quotations and orders are binding. The product is delivered in accordance with MR's technical specifications, which are based on information provided by the customer. The customer has a duty of care to ensure the compatibility of the specified product with the customer's planned scope of application.

  • Page 3: Table Of Contents

    Table of contents 1 Introduction ..........5 7.3 Commissioning transformer at operating site ..38 1.1 Manufacturer ..............5 7.3.1 Mounting control unit ........38 1.2 Completeness ............... 5 7.3.2 Connecting control unit at operating site ..42 1.3 Safekeeping..............5 7.3.3 Switching on power supply ......
  • Page 4 9.4 Data points (single inquiry) ........92 9.4.1 Coils ..............92 9.4.2 Discrete Inputs ..........94 9.4.3 Input register (without option DS) ....96 9.4.4 Input register (with option DS)...... 97 9.4.5 Holding register (without option DS)..100 9.4.6 Holding register (with option DS)....102 9.4.7 Function Code 8 –...

  • Page 5: Introduction

    Deutschland +49 941 4090-0 sales@reinhausen.com reinhausen.com MR Reinhausen customer portal: https://portal.reinhausen.com. Further information on the product and copies of this technical file are available from this address if required. 1.2 Completeness This technical file is incomplete without the supporting documents.

  • Page 6: Notation Conventions

    1.4 Notation conventions 1.4.1 Hazard communication system Warnings in this technical file are displayed as follows. 1.4.1.1 Warning relating to section Warnings relating to sections refer to entire chapters or sections, sub-sections or several paragraphs within this technical file. Warnings relating to sections use the following format: WARNING Type of danger!

  • Page 7: Typographic Conventions

    Aim of action Requirements (optional). Step 1 of 1. Result of step (optional). Result of action (optional). Multi-step instructions Instructions which consist of several process steps are structured as follows: Aim of action Requirements (optional). 1. Step 1. Result of step (optional). 2.

  • Page 8: Safety

    2 Safety 2.1 Appropriate use The product is a motor-drive unit with control unit and adjusts the operating po- sition of on-load tap-changers in regulating transformers to the individual oper- ating requirements. The product is designed solely for use in electrical energy systems and facilities.
  • Page 9 Working during operation The product may only be operated in a sound, operational condition. Otherwise it poses a danger to life and limb. – Regularly check the operational reliability of safety equipment. – Comply with the inspection work, maintenance work and maintenance inter- vals described in this technical file.

  • Page 10: Personnel Qualification

    2.3 Personnel qualification The person responsible for assembly, commissioning, operation, maintenance and inspection must ensure that the personnel are sufficiently qualified. Electrically skilled person The electrically skilled person has a technical qualification and therefore has the required knowledge and experience, and is also conversant with the applicable standards and regulations.
  • Page 11 Protective clothing Close-fitting work clothing with a low tearing strength, with tight sleeves and with no protruding parts. It mainly serves to protect the wearer against being caught by moving machine parts. Safety shoes To protect against falling heavy objects and slipping on slip- pery surfaces.

  • Page 12: Security

    3 IT security Observe the following recommendations to operate the product safely. 3.1 General – Ensure that only authorized personnel have access to the device. – Only use the device within an ESP (electronic security perimeter). Do not connect the device to the Internet in an unprotected state. Use mechanisms for vertical and horizontal network segmentation and security gateways (fire- walls) at the transition points.

  • Page 13: Product Description

    4 Product description 4.1 Scope of delivery The product is packaged with protection against moisture and is delivered as follows: – Motor-drive unit with connection cable – Control unit – Control cabinet for outdoor use (optional) – Control cabinet version with CONTROL PRO (optional) –...

  • Page 14: Operating Modes

    OLTC PreCheck Before each tap-change operation, the motor-drive unit checks whether the drive train of the on-load tap-changer is tight or whether one or more micro- switches have failed. In the event of a micro-switch defect, the device switches to fault mode and issues an error message. Exception: In the EXTERNAL CONTROL operating mode, the device per- forms an automatic OLTC-PreCheck once every 24 hours, not before each tap-change operation.

  • Page 15: Design

    AVR AUTO auto mode In auto mode, the device automatically regulates the voltage in accordance with the set parameters. The voltage is measured in a single phase via the supply voltage. You have to switch to AVR MANUAL manual mode to configure the control unit.

  • Page 16: Control Unit

    4.4.1 Control unit The control unit is equipped with the following operating controls and display elements: Figure 2: Operating controls and display elements (VOLTAGE) (CAPACITY) (MOTOR) LED (ERROR) Display RAISE key LOWER key AVR MANUAL key EXTERNAL CONTROL key MENU key AVR AUTO key   Product description 6117331/06 EN...
  • Page 17 Motor voltage supply ment and power supply Blocking contact Control gear signal line Customer messages RS 485 communication interface MR service interface (must be Terminating resistor switch kept clear) Fine-wire fuse, 6.3 x 32 mm, min. 250 V, T4A 6117331/06 EN Product description  ...

  • Page 18: Control Cabinet (Optional)

    Blocking contact Control gear signal line Customer messages RS 485 communication interface Current transformer input MR service interface (must be kept clear) Fine-wire fuse, 6.3 x 32 mm, min. Terminating resistor switch 250 V, T4A 4.4.2 Control cabinet (optional) If you have ordered the device with the optional control cabinet, the control unit is screwed onto a mounting plate in the control cabinet.
  • Page 19 Figure 6: Example control cabinet for indoor use 6117331/06 EN Product description  ...

  • Page 20: Control Unit Operating Concept

    4.5 Control unit operating concept You can operate the device using the operating controls on the front panel. Function MENU Call up or close the parameterization menu AVR AUTO Activate automatic voltage regulation RAISE In AVR MANUAL operating mode: Raise tap-change operation In parameterization menu: Increase displayed value RAISE +...
  • Page 21 6. Press to confirm the selection. 7. Press to set the desired value (e.g. 15). 8. Press to accept the selection. 9. Press to leave the parameterization menu. The parameter P2.2, delay time T1, is set. Settings are only saved once the parameterization menu is exited via the key.

  • Page 22: Packaging, Transport And Storage

    5 Packaging, transport and storage 5.1 Packaging The products are sometimes supplied with sealed packaging and sometimes in a dry state, depending on requirements. Sealed packaging surrounds the packaged goods with plastic foil on all sides. Products that have also been dried are identified by a yellow label on the sealed packaging.

  • Page 23: Markings

    5.1.2 Markings The packaging bears a signature with instructions for safe transport and correct storage. The following symbols apply to the shipment of non-hazardous goods. Adherence to these symbols is mandatory. Protect against Fragile Attach lifting Center of mass moisture gear here Table 6: Shipping pictograms 6117331/06 EN Packaging, transport and storage  ...

  • Page 24: Transportation, Receipt And Handling Of Shipments

    5.2 Transportation, receipt and handling of ship- ments WARNING Danger of death or severe injury! Danger of death or serious injuries due to tipping or falling load. Only transport the crate when closed. Do not remove the securing material used in the crate during transport. If the product is delivered on a pallet, secure it sufficiently.

  • Page 25: Storage Of Shipments

    With hidden damage, it is very hard to make the transportation company (or other responsible party) liable. Any insurance claims for such damages can only be successful if relevant provisions are expressly included in the insurance terms and conditions. 5.3 Storage of shipments Packaged goods dried by Maschinenfabrik Reinhausen Upon receipt of the shipment, immediately remove the packaged goods dried by Maschinenfabrik Reinhausen from the sealed packaging and store air-tight in...

  • Page 26: Mounting

    6 Mounting This chapter describes how to correctly install and connect the device. WARNING Danger of death or severe injury! An energized transformer and energized on-load tap-changer components can cause death or serious injuries during installation of the drive! Ensure the de-energized state of the transformer and on-load tap-changer components during installation of the drive.
  • Page 27 2. Clean sealing surfaces on the sealing module and underside of the motor- drive unit and check that the O-ring is in the correct position. Figure 8: Cleaning sealing surfaces of the motor-drive unit 3. When mounting for the first time: Remove label with warning. Figure 9: Removing the label 4.
  • Page 28 . If this is not the case, contact MR Service. Figure 11: Checking the position of the motor-drive unit 6. Checking the position of the on-load tap-changer: The mark on the cam disk must be in the marked area on the cover .

  • Page 29: Connecting Control Unit At The Transformer Manufacturer's Site

    9. Establish potential equalization between the motor drive unit and the trans- former cover using an earthing cable or bonding strap (≥ 16 mm² Cu). Con- nect the potential equalization conductor to the ground connection of the motor drive unit using an M8x10 screw. Figure 14: Grounding motor-drive unit Perform an automatic adjustment [►Section 8.3.12.1, Page 80] each time the motor-drive unit is replaced or mounted.

  • Page 30: Connecting Motor-Drive Unit And Voltage Supply

    Cable Terminal Cable type Conductor cross-section Max. length MR service interface Must be kept clear Optional control cabinet Unshielded ≥ 16 mm² grounding Table 7: Recommendation for connection cables To avoid malfunctions, do not connect anything to X8. The connection cable between the motor-drive unit and the control unit is sup- plied as standard.
  • Page 31 – The measurement accuracy is influenced by the measuring error of the volt- age transformer. – During the energy accumulator charging process, the measuring error of the voltage transformer can increase significantly. The charging process for the energy accumulator takes approx. 35 s during initial charging and approx. 0.3 s after each on-load tap-change operation.

  • Page 32: Commissioning

    7 Commissioning 7.1 Commissioning at the transformer manufac- turer's site DANGER Danger of explosion! An incorrect position of the on-load tap-changer or the motor drive shaft can lead to malfunction and, consequently, to an overload of the on-load tap- changer. This overload can lead to an explosion in the transformer. Carry out automatic adjustment and trial tap-change operations on a volt- age-free transformer.

  • Page 33: Performing Trial Tap-Change Operations

    NOTICE Damage to device and system periphery An incorrectly connected device can cause damage to the device and system periphery. Check the entire configuration before commissioning. Make sure that the supply voltage (= measured voltage) corresponds to the specifications in the technical data. For the initial commissioning, proceed as follows: 1.

  • Page 34: Disassembly Before Transformer Drying

    3. Check that the control unit records and correctly displays every position. Otherwise, carry out automatic adjustment again. The control ensures that the required cooling time of approx. 3 seconds is maintained after each on-load tap-change operation. During this time, the control will not accept any tap-change commands.

  • Page 35: Tests On The Transformer

    To do this, follow the description provided in the "Mounting motor-drive unit" [►Section 6.1, Page 26] section. 7.1.3 Tests on the transformer Please contact Maschinenfabrik Reinhausen GmbH (MR) if any aspect of the tests is not clear. 6117331/06 EN Commissioning  ...
  • Page 36 7.1.3.1 Electrical high-voltage tests on the transformer WARNING Danger of death or severe injury from explosive gases when test- ing the transformer! Danger of death from flying debris and spraying of hot oil if incorrect action is taken when explosive gases accumulate under the transformer cover, in the piping, in the oil conservator, and at the dehydrating breather opening! Ensure that there are no naked flames, hot surfaces or sparks (for example caused by static charging) in the immediate surroundings and that none...
  • Page 37 2. Press for longer than 5 seconds. 3. Press until code 3 is displayed. 4. Press to confirm the selection. The LED lights up and event code E4 is displayed. 7.1.3.3 Dielectric tests on transformer wiring The motor-drive unit and control unit are subjected to dielectric tests before de- livery.

  • Page 38: Transporting Transformer To The Operating Site

    NOTICE!  Damage to the control unit due to incorrect transportation or stor- age. Transport control unit in MR packaging used for delivery. Do not trans- port or store the control unit in the open. 7.3 Commissioning transformer at operating site Before energizing the transformer, you must mount and connect the control unit and perform trial tap-change operations.
  • Page 39 7.3.1.1 Mounting on a flat surface To mount the control unit on a flat surface, proceed as follows: 1. Secure the control unit to the flat surface using the fixing brackets provided for this purpose. Note the dimensional drawing in the appendix. 2.
  • Page 40 To mount, proceed as follows: 1. Attach the device carrier to the stud bolts of the low-voltage busbar using re- taining brackets and tighten. Figure 24: Attaching the device carrier to stud bolts of the low-voltage busbar 1 Device carrier 2 Low-voltage busbar stud bolt Figure 25: Fastening the device carrier 2.
  • Page 41 3. Use one of the lower attachment points to ground the control unit housing. To do so, crimp an earthing cable (minimum cross-section 8 mm²) with a ring-type cable terminal and attach it with contact washer, safety washer, and M6 nut. Figure 26: Fastening the control unit 7.3.1.3 Mounting the control cabinet As an option, the control unit is supplied in the control cabinet.

  • Page 42: Connecting Control Unit At Operating Site

    Customer messages RS485; SUB-D Shielded 0.25 mm² 500 m Current transformer input Unshielded 2.5 mm² with ferrule MR service interface Must be kept clear Optional control cabinet Unshielded ≥ 16 mm² grounding Table 8: Recommendation for connection cables To avoid malfunctions, do not connect anything to X8.
  • Page 43 The connection cable between the motor-drive unit and the control unit is sup- plied as standard. DANGER Danger of explosion! An impermissibly long connection cable between the motor-drive unit and control unit can lead to malfunctions of the motor-drive unit and the on-load tap-changer.
  • Page 44 For optional installation of the control unit in a control cabinet, also note the fol- lowing: 1. If both the control cabinets in which the start and end of the cable are con- nected are on the same potential: Use shield on both sides. NOTICE!  If both the control cabinets in which the start and end of the cable are connected are on a different potential: Only use shield on one side.
  • Page 45 Ensure the correct position of the on-load tap-changer: The marking on the cam disk must be in the marked area on the cover Figure 31: Checking the position of the on-load tap-changer Further details: See section "Mounting the motor-drive unit" [►Section 6.1, Page 26].
  • Page 46 Further conditions: – Assurance that there are no voltage drops in the converter under load to en- sure regular operation. – For the correct dimensioning of the voltage transformer, observe the infor- mation in the section "Technical data of the control unit" [►Section 15.1, Page 117].
  • Page 47 7. The plug connector is coded. Carry out the installation without using force by connecting the plug connector to terminal X1 correctly according to the de- vice labeling and screwing it tight with 0.5 Nm. 8. Tighten the SUB-D connector (Modbus communication) at X6 with a torque of 0.1 Nm.
  • Page 48 8. For the current-transformer connection, plug the gray connector provided onto the X7 interface of the controller so that the 2 connection terminals point to the rear of the controller. Figure 34: Mounting the current-transformer connection connector 9. Connect the current-transformer connection k-S1 to terminal X7.1 and cur- rent-transformer connection l-S2 to terminal X7.2 (0.7 Nm).
  • Page 49 4. Pull the cable through the bushing and tighten the cap nut. Figure 36: Fastening the cable bushing 5. Install plugs for the connecting cable to the motor-drive unit (connectors X2 and X4). Terminal Plug connection Cable Table 9: X2 and X4 connector assignment Connect the control unit as shown in the connection diagram provided 1.
  • Page 50 Control cabinet version with multi-piece cable gland Figure 37: Cable bushing for the connection cable to the motor-drive unit 1 Sealing ring 2 Hexagon nut 3 Cable sleeve 4 Separable cable bushing To feed through the connection cable to the motor-drive unit, proceed as fol- lows: 1.
  • Page 51 4. Place the cable sleeve in one half shell of the separable cable bushing; snap the second half of the cable bushing into place. Figure 40: Snapping the cable sleeve into place 5. Push the sealing ring over the plug and the cable. 6.

  • Page 52: Switching On Power Supply

    7.3.3 Switching on power supply DANGER Danger of explosion! An incorrect position of the on-load tap-changer or the motor drive shaft can lead to malfunction and, consequently, to an overload of the on-load tap- changer. This overload can lead to an explosion in the transformer. Carry out automatic adjustment and trial tap-change operations on a volt- age-free transformer.

  • Page 53: Performing Trial Tap-Change Operations

    7.3.4 Performing trial tap-change operations Before you activate the transformer, you must carry out trial tap-change opera- tions to check the mechanical and electrical functions of the on-load tap- changer and the motor-drive unit. You have already carried out automatic adjustment [►Section 8.3.12.1, Page 80] of the on-load tap-changer and the motor-drive unit.

  • Page 54: Setting Parameters

    6. The plug connector is coded. Carry out the installation without using force. Connect the plug connector to terminal X1 correctly according to the device labeling and screw it tight with 0.5 Nm. To protect the loads from impermissible fluctuations in voltage, only acti- vate the load circuits (low-voltage busbar) after all tests are finished.

  • Page 55: When Operating With Alternative Insulating Liquids: Activating Temperature Blocking

    7.3.8 When operating with alternative insulating liquids: activating temperature blocking You can operate the on-load tap-changer with alternative insulating fluids upon request. When doing so, you must ensure that switching operations cannot be performed during operation if the transformer's insulating fluid temperature is less than the permissible temperature.

  • Page 56: Operation

    8 Operation This chapter describes all the functions and setting options for the device. 8.1 Selecting the operating mode You can select the operating mode via the operating controls on the front panel of the control unit. AVR MANUAL manual mode In manual mode, you can perform tap-change operations via the (= in- crease voltage) and...

  • Page 57: Actuating On-Load Tap-Changer Using The Emergency Drive Shaft

    8.2 Actuating on-load tap-changer using the emergency drive shaft WARNING Danger of death or severe injury! Improper actuation of the on-load tap-changer may result in death or serious injury! Fully de-energize the transformer and lock to prevent it from being switched back on.
  • Page 58 3. Loosen screws and lift motor-drive unit off sealing module. Figure 46: Removing the motor-drive unit 4. Pull the emergency drive shaft out of the bracket in the sealing module. Figure 47: Pulling the emergency drive shaft out of the bracket 5. Plug the emergency drive shaft with feather key into the shaft of the on-load tap-changer.
  • Page 59 NOTICE!  Damage to the on-load tap-changer due to a tap-change operation not being completed correctly. Turn the emergency drive shaft using a suit- able tool in one direction until reaching one complete revolution and the ar- row on the cam disk is again facing the arrow in the cover NOTICE!  .

  • Page 60: Configuring The Control Unit

    8.3 Configuring the control unit This chapter describes how to configure the control unit. Settings are only saved once the parameterization menu is exited via the key. If you do not press the key within 30 s, the parameterization menu is exited automatically and the changes are not saved. 8.3.1 Regulation All of the parameters required for the regulation function are described in this section.
  • Page 61 Figure 52: Regulation function response 1 +B %: Upper limit : Desired value desired 3 -B %: Lower limit 4 Set delay time T : Measured voltage 6 Bandwidth = gray area between upper actual limit +B % and lower limit -B %. is outside the bandwidth. Delay is back within the bandwidth be- actual actual...
  • Page 62 The bandwidth must always be greater than the following value: Figure 53: Calculation of minimum bandwidth Voltage of tap position n-1 Voltage of tap position n Nominal voltage The following transformer values are used to determine the minimum bandwidth: Nominal voltage U = 400 V Voltage in tap position 4 U = 390 V...
  • Page 63 To set the delay time T1, proceed as follows: The AVR MANUAL operating mode is active. 1. Press > until the desired parameter is displayed. 2. Press to confirm the selection. 3. Press until the desired parameter is displayed. 4. Press to confirm the selection.

  • Page 64: Active Power-Dependent Adjustment Of Desired Voltage Value (Optional)

    3. Press until the desired parameter is displayed. 4. Press to confirm the selection. 5. Press to select the desired value. Alternative: Press to set the value in larger steps. 6. Press to confirm the selection. 7. Press to save the setting. 8.3.2 Active power-dependent adjustment of desired voltage value (optional) With the Dynamic Setpoint (DS function) function, you can extend the AVR...
  • Page 65 Measured active DS function behavior Desired value U power < P If the value falls below P is set as meas the desired value.  ≤ P  < P If the active power is between P × P meas meas 0 - P , the following linear dependency ap- plies:  = P...
  • Page 66 All parameters with setting range [0;1] are set in accordance with the same scheme: Parameter Designation P11.1 DS function on/off P11.4 Selection of value representation U (minimum desired value) as absolute value or relative value P11.6 Selection of value representation U (maximum desired value) as absolute value or relative value P11.8...
  • Page 67 10. Press to confirm the selection, because a change is not necessary here. The point to the right of digit 5 flashes, signalizing readiness for setting: 11. Press again, because digit 5 is not relevant for this parameter. is displayed. 12. Press until the next parameter to be set is displayed.

  • Page 68: Measured Value Memory

    Parameter Designation Decimal place Unit Factory set- Setting range tings P11.12 Value representation selection P (P11.13) 1 = relative 0 = absolute 1 = relative P11.13 Active power P at maximum desired value U -32,760…+32,760 P11.14 Current transformer transmission ratio 1…65,000 (6,500.0) Table 13: Parameter overview Function DS Please note the following:...
  • Page 69 Function description The measured value memory function belongs to the DS option. Check the currently transmitted measured values for plausibility during commissioning and inspection. These are displayed in the input register (e.g. address 20, 21: "Momentary current"). An overview can be found in the section „Input Register (with option DS)“...
  • Page 70 – In the example, meaningful records are stored as of 2023-03-28, 09:20, as long as the above conditions are met. – As soon as the control unit is supplied with voltage, at least one complete day is filled with data in the measured value memory. If, for example, the control unit is only in operation for 1 h during a commissioning test, the memory space for the data records of a complete day is still occupied (24 x 6 = 124 data records).
  • Page 71 MD&C EEPROM memory measured values Holding Register 100 Transfer with pointer change Input Register 1000...1095: 96 words/192 bytes Y:Mo:D:H:Mi:TP FP1:FP2:FP3:FP4:FP5 1000-1005 1006-1015 Y:Mo:D:H:Mi:TP FP1:FP2:FP3:FP4:FP5 1016-1021 1022-1031 Y:Mo:D:H:Mi:TP FP1:FP2:FP3:FP4:FP5 1032-1037 1038-1047 Y:Mo:D:H:Mi:TP FP1:FP2:FP3:FP4:FP5 1048-1053 1054-1063 Y:Mo:D:H:Mi:TP FP1:FP2:FP3:FP4:FP5 1064-1069 1076-1079 Y:Mo:D:H:Mi:TP FP1:FP2:FP3:FP4:FP5 1080-1085 1086-1095 6 x 10 minutes = 1 h...

  • Page 72: Voltage Blocking (P4)

    Sequence description: – When the read command is transmitted, the first 6 data records (1 h) are writ- ten from the measured value memory into the input registers 1000...1095 and then transmitted. – After completion of the transmission of the first 6 data sets (suitable Modbus tool provided), the pointer is automatically incremented to start the transmis- sion of the next 6 data sets (1 h).

  • Page 73: Blocking Function (P5)

    3. Press until the desired parameter is displayed. 4. Press to confirm the selection. 5. Press to select the desired value. Alternative: Press to set the value in larger steps. 6. Press to confirm the selection. 7. Press to save the setting. 8.3.4.3 Activating/deactivating voltage blocking (P4.3) The AVR MANUAL operating mode is active.

  • Page 74: Target Position For Loss Of Voltage (P6)

    2. Press to confirm the selection. 3. Press to select the desired option. 4. Press to confirm the selection. 5. Press to save the setting. 8.3.6 Target position for loss of voltage (P6) The control unit is fitted with an integrated energy accumulator so that, in the event of a voltage failure, a tap-change operation that has been started can be reliably completed and a defined transformer transmission ratio can be reached through further switching operations.

  • Page 75: Number Of Operating Positions (P7)

    8.3.6.2 Activating/deactivating target position for loss of voltage (P6.2) You can use this parameter to activate and deactivate the function "Target posi- tion for loss of voltage". You can select the following options: – 0 = inactive – 1 = active To activate or deactivate the "Target position for loss of voltage"...

  • Page 76: Regulating Range (P8)

    8.3.8 Regulating range (P8) You can limit the permissible regulating range as necessary. Here, you can set the lowest operating position and the highest operating position. The limited regulating range applies to all operating modes. You can, how- ever, move to an operating position outside of the permissible regulating range via the "Target position for loss of voltage"...

  • Page 77: Remote Behavior (P9)

    8.3.9 Remote behavior (P9) You can use this parameter to set the remote behavior of the device in connec- tion with the ECOTAP® VPD® CONTROL PRO control unit. This setting only has an effect in the EXTERNAL CONTROL operating mode. You can select the fol- lowing options: –...

  • Page 78: Communication Settings (P20)

    8.3.10.2 Activating/deactivating password protection (P10.2) You can use this parameter to activate or deactivate the password protection function. You can select the following options: – 0 = inactive – 1 = active To activate or deactivate the password protection function, proceed as follows: The AVR MANUAL operating mode is active.
  • Page 79 Note the Modbus address setting range: 1…247. The AVR MANUAL operating mode is active. 1. Press > until the desired parameter is displayed. 2. Press to confirm the selection. 3. Press until parameter P20.1 is displayed. 4. Press to confirm the selection. 5.

  • Page 80: Adjustment (F1)

    4. Press to confirm the selection. 5. Press until code 3 is displayed. 6. Press to confirm the selection. The communication will be interrupted briefly and restart immediately. The last values set for the Modbus address and baud rate are now active. 8.3.11.3 Event message E1 in AVR AUTO (P20.4) You can use this function to set for whether the event message E1 ("No connec- tion to EXTERNAL CONTROL") is also generated in the AVR AUTO operating...
  • Page 81 Only carry out automatic adjustment with an open busbar on the low-volt- age side since the on-load tap-changer moves through the entire regulat- ing range and this can result in excessive voltage deviations for loads. To start the automatic adjustment, proceed as follows: The AVR MANUAL operating mode is active.

  • Page 82: Reading Remaining Life (F2)

    8.3.12.3 Manual adjustment n+1 (F1.3) You can use this function to perform a manual adjustment of the on-load tap- changer starting from the current tap position through to the highest tap posi- tion (Pos. N). The manual adjustment does not run through the entire regulat- ing range of the on-load tap-changer.
  • Page 83 For functional reasons, the remaining life drops more quickly at the beginning of the product life cycle and the curve becomes flatter as the operating time in- creases: 100% Time Figure 57: Typical progression of the remaining life The progression is influenced by external influences – in particular high ambient temperatures –...

  • Page 84: Led Function Test (F3)

    To start the remaining life query, proceed as follows: The AVR MANUAL operating mode is active. 1. Press > until the desired function is displayed. 2. Press to confirm the selection. The remaining life is displayed as a percentage value. 3.

  • Page 85: Read Out Software Version (F6)

    5. Press to save the setting. 8.3.17 Read out software version (F6) To read out the software version, proceed as follows: The AVR MANUAL operating mode is active. > Press until the desired function is displayed. 2. Press to confirm the selection. The control unit's software version is displayed.

  • Page 86: Reset To Factory Setting (F8)

    To set the customer message for event message E2, proceed as follows: The AVR MANUAL operating mode is active. 1. Press > until the desired function is displayed. 2. Press to confirm the selection. 3. Press until the desired parameter is displayed. 4.

  • Page 87: Control Parameters And Measured Values Of The Ds Function (F10)

    2. Press to confirm the selection. The display displays the parameter designation and the set values succes- sively at a rate of 1 second. 3. Press to exit the display. 4. Press to leave the parameterization menu. 8.3.21 Control parameters and measured values of the DS function (F10) You can use the function F10.1 to check the desired value for the voltage regula- tion and the 3-phase active power.

  • Page 88: Displaying Event Memory (E)

    8.3.21.2 Resetting the measured values of the DS function (F10.2) To reset the stored min/max values of the DS function (see: Input register (with option DS) [►Section 9.4.4, Page 97]), proceed as follows: The AVR MANUAL operating mode is active. 1.
  • Page 89 3. Press to call up the memory slot. The event code or a number of tap-change operations will be displayed. 4. Press to display further event codes. If there are no further event codes present, the number of tap-change operations will be displayed. 5.

  • Page 90: Control System Protocol

    9 Control system protocol 9.1 Modbus RTU Parameters These parameters remain permanently stored even in the event of a voltage failure. Status bits are queried again when the power returns. The device uses the Modbus RTU control system protocol (master-slave com- munication) with the following parameters: Device parameters upon delivery Parameter...

  • Page 91: Function Codes

    9.2 Function codes Function code Group description R = read / W = write 01 (0x01) Read discrete output coil 02 (0x02) Read discrete input contact 03 (0x03) Read analog output holding registers 04 (0x04) Read analog input register 05 (0x05) Write discrete output coil 06 (0x06) Write analog output holding registers...

  • Page 92: Data Points (Single Inquiry)

    9.4 Data points (single inquiry) 9.4.1 Coils Address (no Name Type Status EXTERNAL CONTROL offset) R = read / W = write CONTROL PRO Others Change tap position raise 1 = raise Change tap position lower 1 = lower P9 Parameter local/remote 1 = remote Error ISM 1 = error...
  • Page 93 Activation of the Blocking function (P5) [►Section 8.3.5, Page 73] Address 4 Address 12 Result Mode 0 = inactive Mode 1 = active in operating mode AUTO/EXTERNAL Mode 2 = active in operating mode MANUAL/AUTO/EXTER- Not permitted Table 23: blocking function mode If a PreCheck is initiated via Coil 13, the timer is reset (input register 10: "Re- maining time to the next PreCheck").

  • Page 94: Discrete Inputs

    9.4.2 Discrete Inputs Address Name Type Coil status EXTERNAL CONTROL (no offset) R = read / W = write CONTROL PRO Others E1 No connection to EXTERNAL CONTROL 1 = active E2 EXTERNAL CONTROL command could not be per- 1 = active formed E3.1 Error mosfet switch 1 = active...
  • Page 95 Address Name Type Coil status EXTERNAL CONTROL (no offset) R = read / W = write CONTROL PRO Others Voltage failure (detection < 60 V, communication im- 1 = active possible) E2.6 Error in wiring 1 = active 32200 AVR error (including E2.6, E3.x, E4.x, E5.x, E6.x and 1 = active E7.x) 32201...

  • Page 96: Input Register (Without Option Ds)

    9.4.3 Input register (without option DS) Address (no Name Type Unit Decimal EXTERNAL CONTROL offset) places R = read / W = write CONTROL PRO Others 0, 1 Device number SINT32 Capacitor health UINT16 Input voltage (data value = 2 x measured value; UINT16 example: measured value = 125.5 V =>...

  • Page 97: Input Register (With Option Ds)

    9.4.4 Input register (with option DS) With the option DS, the following additional data points are available: Address (no Name Type Unit Decimal EXTERNAL CONTROL offset) places R = read / W = write CONTROL PRO Others 16, 17 Minimum current FLOAT32 18, 19 Maximum current...
  • Page 98 Address (no Name Type Unit Decimal EXTERNAL CONTROL offset) places R = read / W = write CONTROL PRO Others 1022, 1023 Current FLOAT32 1024, 1025 Voltage FLOAT32 1026, 1027 Phase angle FLOAT32 ° 1028, 1029 Power FLOAT32 1030, 1031 Reactive power FLOAT32 1032...
  • Page 99 Address (no Name Type Unit Decimal EXTERNAL CONTROL offset) places R = read / W = write CONTROL PRO Others 1076, 1077 Power FLOAT32 1078, 1079 Reactive power FLOAT32 1080 Year UINT16 1081 Month UINT16 1082 UINT16 1083 Hour UINT16 1084 Minute UINT16...

  • Page 100: Holding Register (Without Option Ds)

    9.4.5 Holding register (without option DS) Address (no Name Type Unit Decimal EXTERNAL CONTROL offset) places R = read / W = write CONTROL Others Operating mode UINT16 – 1 = AVR AUTO – 2 = AVR MANUAL – 3 = EXTERNAL CONTROL Tap position UINT16 2, 3...
  • Page 101 With the command "Multiple switching operations" (optional), up to 3 succes- sive switching operations can be executed without a regular pause of 3 sec- onds. This is followed by a cooling period of – 3 seconds for 1 on-load tap-change operation – 6 seconds for 2 on-load tap-change operations –...

  • Page 102: Holding Register (With Option Ds)

    9.4.6 Holding register (with option DS) With the option DS, the following additional data points are available: Address Name Type Unit Decimal EXTERNAL CONTROL (no offset) places R = read / W = write CONTROL Others P11.1 Function DS: 1 = on, 0 = off UINT16 P11.2 Transformer nominal power S UINT16...
  • Page 103 Address Name Type Unit Decimal EXTERNAL CONTROL (no offset) places R = read / W = write CONTROL Others 101 - 115 Internal datapoint UINT 16 Initialization timestamp: second UINT 16 Initialization timestamp: minute UINT 16 Initialization timestamp: hour UINT 16 Initialization timestamp: weekday UINT 16 Initialization timestamp: day...

  • Page 104: Function Code 8 - Diagnostics

    9.4.7 Function Code 8 – Diagnostics Subfunction code Function FC8.1 Restart Communications Option FC8.10 Clear Counters and Diagnostic Register FC8.11 Return Bus Message Count FC8.12 Return Bus Communication FC8.13 Return Bus Exception Error Count FC8.14 Return Server Message Count FC8.15 Return Server No Response Count FC8.16 Return Server NAK Count...

  • Page 105: Data Points (Collective Inquiry)

    9.5 Data points (collective inquiry) Address (no Range Parameter Description Type Value offset) Others No connection to EXTERNAL CONTROL 0 = ok 1 = error EXTERNAL CONTROL command could 0 = ok not be performed 1 = error E3.1 Error in connection between control unit 0 = ok E3.2 and motor-drive unit...
  • Page 106 Address (no Range Parameter Description Type Value offset) Others 0…15 Operating mode UINT16 1 = AVR AUTO 2 = AVR MANUAL 3 = EXTERNAL CON- TROL 0…15 Current tap position UINT16 1…15 205, 206 0…31 Counter SINT32 0…15 Cooling time motor drive after tap change UINT16 e. g.

  • Page 107: Fault Elimination

    10 Fault elimination 10.1 General faults Characteristics/details Cause Remedy No function No voltage supply Check the voltage supply. – LED not lit up Device-internal fuse (F1) tripped Check fuse (F1) [►Section 4.4.1, Page 16] and re- place if necessary. Table 31: General faults 10.2 Problem with automatic voltage regulation (AVR AUTO) Characteristics/details...

  • Page 108: Other Faults

    10.3 Other faults In the event of faults on the on-load tap-changer, motor-drive unit, or control unit which cannot be easily corrected on site, please inform your authorized MR representative, the transformer manufacturer or contact Maschinenfabrik Rein- hausen GmbH (MR) directly.

  • Page 109: Inspection And Maintenance

    11 Inspection and mainte- nance CAUTION Risk of injury A switching operation triggered suddenly by an external source can lead to in- juries. Remove the D-SUB connector on the COM1 communication interface of the control unit (X6) to prevent the execution of external tap-change com- mands.

  • Page 110: Maintenance

    11.2 Maintenance The ECOTAP® VPD® on-load tap-changer and ECOTAP® VPD® MD&C motor- drive unit are maintenance-free. Interval Action After 500,000 operations Replacing the on-load tap-changer: Contact the Maschinenfabrik Reinhausen Technical Service department for this. After a maximum of 20 years Replace the control unit. Contact the Maschinenfabrik Reinhausen Technical Ser- vice department for this.

  • Page 111: Messages

    TERNAL CONTROL TERNAL CONTROL is connected correctly. Check that the EXTERNAL CONTROL is working correctly. Follow the corresponding operating instructions when doing so. If the error is still present, contact MR. Info EXTERNAL CON- Check the EXTERNAL CONTROL operating mode setting.
  • Page 112 Has the factory-set wiring on X2 or X4 been changed? If yes, re- E3.4 drive unit store to original status. If the error is still present, contact MR. E3.5 Error Error in MOSFET Contact MR. bridge (short circuit/ interruption) E4.1...

  • Page 113: Overview Of Parameters

    13 Overview of parameters Parameter overview without function DS Parameter Setting range Factory settings Current settings P1: Desired voltage 100…240 V 230 V P2: Normal regulation P2.1: Bandwidth B1 0.5…8% P2.2: Delay time T1 3...1800 s 10 s P3: Fast regulation P3.1: Bandwidth B2 3...9%;...
  • Page 114 Parameter Setting range Factory settings Current settings F6: Read out software version F7: Error relay F7.1: Error relay E1 0 = inactive, 1 = active 1 = active F7.2: Error relay E2 0 = inactive, 1 = active 1 = active F8: Factory settings F9: Display control parameters Baud rate holding register 31507...
  • Page 115 Parameter Setting range Factory settings Current settings P11.12: Value representation selection P (P11.13) 0 = absolute, 1 = relative 1 = relative P11.13: Active power P at maximum desired -81.9%…81.9% value U P11.14: Current transformer transmission ratio 1…65000 (6500.0) Table 36: Parameters for optional function DS 6117331/06 EN Overview of parameters  ...

  • Page 116: Disposal

    14 Disposal For disposal, observe the national requirements applicable in the country of use. If you have any questions about disassembly and disposal, please contact Maschinenfabrik Reinhausen GmbH's Technical Service department.   Disposal 6117331/06 EN...

  • Page 117: Technical Data

    15 Technical data 15.1 Control unit with option DS Electrical data of the control unit without option DS Permissible nominal voltage range : 100...240 VAC – 15%/+10 % Note: The measured voltage is the supply voltage Measuring accuracy at U = 100 V (-25...+50 °C): < ± 2.00% Measuring accuracy at U = 240 V (-25...+50 °C): < ± 0.85% Intrinsic consumption: 7.5 W...
  • Page 118 Switching capacity X5 contacts 125 V 0.5 A 30 V 1.0 A 60 V 0.3 A Table 40: X5/switching capacity Interface X6/COM1 (RS485) Terminal Description A (+) B (-) Table 41: X6/COM1 (RS485) Terminating resistor for X6/COM1 Switch S1 for terminating resistor Position Description Without terminating resistor With terminating resistor 120 Ω Table 42: Switch S1 Control unit Delivery status...

  • Page 119: Control Unit With Option Ds

    15.2 Control unit with option DS Electrical data of the control unit with option DS Permissible nominal voltage range : 100...240 VAC – 15%/10 % Note: The measured voltage is the supply voltage Measuring accuracy at U (-25...+50 °C): < ± 0.3% Intrinsic consumption: 7.5 W Current measurement : 5 A Measuring range: 0.01...2.1 * I Overload capacity: 12.5 A (continuous), 500 A (for 1 s)
  • Page 120 Switching capacity X5 contacts 125 V 0.5 A 30 V 1.0 A 60 V 0.3 A Table 47: X5/switching capacity Interface X6/COM1 (RS485) Terminal Description A (+) B (-) Table 48: X6/COM1 (RS485) Interface X7 (current-transformer connection) for 1-phase current Terminal Description measurement k-S1 l-S2 Table 49: X7 Interface X7 (current-transformer connection) Connector Description Terminal for X7.1...

  • Page 121: Technical Data For The Motor-Drive Unit

    15.3 Technical data for the motor-drive unit Permissible ambient conditions of the motor-drive unit Operating temperature -25 °C...+55 °C Storage temperature -25 °C...+55 °C Air pressure Corresponds to 2,000 m above sea level Degree of protection IP66 Installation site Indoors, outdoors Table 52: Permissible ambient conditions motor-drive unit Connection cables from the motor-drive unit to the control unit Length 10 m (9.7 m available length + 0.3 m internal wiring, motor cover)

  • Page 122: Drawings

    16 Drawings 1. Dimensional drawing ECOTAP® VPD® CONTROL 2. Connection diagram ECOTAP® VPD® CONTROL 3. Connection diagram ECOTAP® VPD® CONTROL DS   Drawings 6117331/06 EN...

  • Page 128: List Of Key Words

    List of key words  84 P20.4  80 Active power-dependent adjustment  84 P3.1  63 of desired voltage value  64  84 P3.2  63 Automatic adjustment  80  85 P4.1  72 Reset  36 F7.1  85 P4.2  72 Automatic voltage regulation  54 F7.2  85  73  86 P6.1  74...

  • Page 129: Glossary

    Glossary OLTC PreCheck Check of the on-load tap-changer operating conditions prior to a tap-change operation to prevent damage to the on-load tap-changer and transformer. Remote Terminal Unit 6117331/06 EN Glossary  ...
  • Page 132 Maschinenfabrik Reinhausen GmbH Falkensteinstrasse 8 93059 Regensburg Germany +49 941 4090-0 info@reinhausen.com reinhausen.com Please note: The data in our publications may differ from the data of the devices delivered. We reserve the right to make changes without notice. ® ® 6117331/06 EN - ECOTAP MD&C Operating instructions - 06/24...

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