Table of contents 5 Table of contents 1 Safety instructions Contents of this chapter ................Use of warnings and notes ............... General safety in installation, start-up and maintenance ........Electrical safety in installation, start-up and maintenance ........Precautions before electrical work ............Additional instructions and notes .............
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6 Table of contents Lifting the converter ................Placing the converter ................Fastening the cabinet to the floor ..............Internal cooling circuit ................Lifting the door ..................Miscellaneous ..................Cable duct in the floor below the cabinet ........... Electric welding ................. 5 Planning the electrical installation Contents of this chapter ................
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Table of contents 7 Connecting the grid cables ............... Connection diagram ................Connection procedure ................. Connecting the generator cables ..............Connection diagram ................Connection procedure ................. Connecting the external power supply cable for the auxiliary circuit ....... Connecting the control cables ..............Default I/O connection diagrams .............
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8 Table of contents Fuses ....................Main circuit AC fuses ................Main circuit DC fuses ................Fuses for the voltage measurement board BAMU ........Dimensions, weights and free space requirements ........... Losses, cooling data and noise ..............Internal cooling circuit data ..............Terminal and lead-through data for the grid connection ........
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Table of contents 9 12 Dimension drawings Contents of this chapter ................13 Cooling and heating Contents of this chapter ................Hardware description ................General ..................Diagram of the internal cooling and heating circuit ........Planning the cooling system ..............Connection to a customer cooling unit ............
Safety instructions 11 Safety instructions Contents of this chapter This chapter contains the safety instructions which you must obey when you install and operate the converter, and do maintenance on the converter. If you ignore the safety instructions, injury, death or damage can occur to the converter, the generator or other adjoining equipment.
12 Safety instructions General safety in installation, start-up and maintenance These instructions are for all personnel that install the converter and do maintenance work on it.
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Safety instructions 13 WARNING! Obey these instructions. If you ignore them, injury or death, or damage to the equipment can occur. • Use safety shoes with a metal toe cap. Use protective gloves. • Use protective eyewear when working with the liquid cooling system. •...
14 Safety instructions Electrical safety in installation, start-up and maintenance Precautions before electrical work ■ These instructions are for the qualified electricians who do work on the converter, generator cable or generator. WARNING! Obey these instructions. If you ignore them, injury or death, or damage to the equipment can occur.
Safety instructions 15 5. Measure that the installation is de-energized. • Use a multimeter with an impedance of at least 1 Mohm. • Make sure that the voltage between the converter grid cable terminals (L1, L2, L3) and the grounding (PE) busbar is close to 0 V. •...
16 Safety instructions WARNING! Use a grounding wristband when you handle printed circuit boards. Do not touch the boards unnecessarily. The boards contain components sensitive to electrostatic discharge. Fiber optic cables ■ WARNING! Obey these instructions. If you ignore them, equipment malfunction and damage to the fiber optic cables can occur.
Safety instructions 17 Opening and disconnecting the main circuit breaker ■ These instructions are for the qualified electricians who do work on the converter, generator cable or generator. WARNING! If you are not a qualified electrician, do not proceed or do any installation or maintenance work.
Safety instructions 19 Disconnecting the charging circuit from the main circuit ■ WARNING! If you are not a qualified electrician, do not proceed. 1. Make sure that you have opened the main circuit breaker (Q1). See section Opening and disconnecting the main circuit breaker (page 17).
20 Safety instructions Disconnecting the auxiliary power supply ■ WARNING! If you are not a qualified electrician, do not proceed. 1. Make sure that you have opened the main circuit breaker (Q1). See section Opening and disconnecting the main circuit breaker (page 17).
Safety instructions 21 Grounding ■ These instructions are intended for all who are responsible for the grounding of the converter. WARNING! Obey these instructions. If you ignore them, injury or death, or damage to the equipment can occur, and electromagnetic interference can increase. •...
22 Safety instructions Work on the liquid cooling system These instructions are intended for all who are responsible for installation and maintenance work of the liquid cooling system of the converter. WARNING! Obey these instructions. If you ignore them, injury or damage to the equipment can occur.
Introduction to the manual 23 Introduction to the manual Contents of this chapter This chapter describes the intended audience and contents of the manual. It also contains a flowchart of steps in checking the delivery, installing and commissioning the wind turbine converter.
24 Introduction to the manual Quick installation, commissioning and operation flowchart Task Plan the installation. Check: ambient conditions, ratings, Technical data (page 91) required external cooling circuit arrangements, compat- Planning the electrical installation (page 49) ibility of the generator, power cable connection, etc. Option manuals (if optional equipment is included) Select the cables.
Introduction to the manual 25 Terms and abbreviations Term Description Auxiliary control unit. Contains control electronics, auxiliary voltage circuitry, etc. BAMU Auxiliary measurement unit BCON Type of control board Type of control unit Control unit The part in which the control program runs. Converter Converts direct current and voltage to alternating current and voltage, or vice versa.) Converter module...
Operation principle and hardware description 27 Operation principle and hardware description Contents of this chapter This chapter describes the operation principle and the construction of the wind turbine converter. Operation principle The ACS880-87LC is a four-quadrant, cabinet-mounted liquid-cooled converter intended for full power conversion turbines with an induction generator or a permanent magnet generator.
28 Operation principle and hardware description Generator control The generator power flows through the generator-side converter to the converter intermediate DC circuit. The generator control is based on the Direct torque control (DTC) method. Two phase currents and intermediate DC circuit voltage are measured and used for the control. The third phase current is measured for ground fault protection.
Operation principle and hardware description 29 Overview diagram of the wind turbine converter An example single-line diagram of the wind turbine converter is shown below.
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30 Operation principle and hardware description...
Operation principle and hardware description 33 Overview of power and control connections The diagram shows the power connections and internal control interfaces of the wind turbine converter. See also section Circuit boards (page 34). The option module slots on the control unit are reserved for internal use and communication.
34 Operation principle and hardware description Circuit boards These example diagrams show the interconnections between the circuit boards of the converter. For further details, see the delivery-specific circuit diagrams. For information on the BCU control unit, see chapters BCU-x2 control unit BCU-x5 control unit.
Operation principle and hardware description 37 BAMU board The BAMU board is a multipurpose measurement unit for voltage and current measurement. It has two three-phase voltage inputs and three current inputs. When the option +F276 (grid fault ride-through) is selected, the BAMU board is included in the delivery for measuring three grid voltages.
• The option codes follow the basic code. Each option code starts with an identifying letter (common for the whole product series), followed by descriptive digits. The option codes are separated by plus signs. The selections are listed below. For more information, contact your local ABB representative.
Mechanical installation 41 Mechanical installation Contents of this chapter This chapter describes the mechanical installation procedure of the wind turbine converter. Safety instructions See the safety instructions.
•Pozidriv and Torx (2.5 … 6 mm, 0.98 … 0.2 in) screwdrivers for the tightening of the frame screws (Screws needed for fastening the cabling boxes and other accessories delivered by ABB are included in the delivery. They are inside the cabinet. The delivery does not contain screws or tools to install the cabinet to the floor.)
Mechanical installation 43 Moving the converter package Moving the converter package by fork-lift ■ WARNING! Only use a heavy duty forklift that can carry the weight of the converter. • Make sure that the reach of the fork lift is long enough. The package is wide and the center of gravity is far from the edges.
4. Detach the converter from its platform, lift the converter and remove the platform. Lifting the converter Obey these instructions when ABB lifting bars are in use: 1. Attach the lifting slings to holes of the lifting bars (a). Use long enough slings. See the minimum lifting angle in the figure below.
Mechanical installation 45 Placing the converter The cabinet can be placed into its final position with an iron bar and a wooden piece at the bottom edge of the cabinet. Place the wooden piece carefully to avoid damage to the cabinet frame.
46 Mechanical installation Fastening the cabinet to the floor Bolt the converter to the floor through the holes in each flat bar at the base of the cabinet using M12 screws. We do not recommend welding (see section Electric welding (page 47)).
Mechanical installation 47 Miscellaneous Cable duct in the floor below the cabinet ■ You can construct cable ducts below the cabinet. The duct width must not exceed 450 mm (18 in). The cabinet weight lies on the 100 mm (4 in) wide sections in front, middle and back which the floor must carry.
ABB does not assume any liability whatsoever for any installation which breaches the local laws and/or other regulations. Furthermore, if the recommendations given by ABB are not followed, the converter may experience problems that the warranty does not cover.
You can avoid the stress on generator insulation by using ABB du/dt filters. du/dt filters also reduce bearing currents. The converter is equipped with the following output filters: •...
Planning the electrical installation 51 To avoid damage to generator bearings, the cables must be selected and installed according to the instructions given in this manual. In addition, insulated N-end (non-converter end) bearings must be used. Selecting the power cables General rules ■...
52 Planning the electrical installation conductor shall be determined in a manner which produces a conductance equivalent to that which results from the application of this table. Cross-sectional area of the phase conductors Minimum cross-sectional area of the corresponding protective conductor S (mm S ≤...
Planning the electrical installation 53 DC resistor cables Converter type Cable type Conductor Number of conductor pairs per DC chopper module type ACS880-87LC- 70 kcmil 3200A/3200A-7 Copper 2×1 Alternative power cable types ■ The power cable types that you can use with the converter are shown below. Symmetrical shielded cable with three phase conductors and a concentric PE conductor as shield.
54 Planning the electrical installation Generator cable shield If the generator cable shield is used as the sole protective earth conductor of the generator, make sure that the conductivity of the shield is sufficient. See subsection General rules above, or IEC 61800-5-1. To effectively suppress radiated and conducted radio-frequency emissions, the cable shield conductivity must be at least 1/10 of the phase conductor conductivity.
Planning the electrical installation 55 Conduit Bridge the joints of the conduits with a ground conductor bonded to the conduit on each side of the joint. Bond the conduits also to the converter enclosure. Use separate conduits for grid, generator, DC resistors, and control wiring. A dedicated ground cable is always required.
56 Planning the electrical installation Relay cable ■ The cable type with braided metallic screen (for example, ÖLFLEX from Lapp Kabel, Germany) has been tested and approved by ABB.
Planning the electrical installation 57 Routing the cables Route the generator cable away from other cable routes. It is recommended that the generator cable, grid cable and control cables are installed on separate trays. Avoid long parallel runs of generator cables with other cables in order to decrease electromagnetic interference caused by the rapid changes in the converter output voltage.
58 Planning the electrical installation Control cable ducts ■ 230 V AC 24 V DC (120 V AC) 230 V AC 24 V DC (120 V AC) Picture on the left: Lead 24 V and 230/120 V control cables in separate ducts into the inside of the cabinet.
(This is not a personal safety or a fire protection feature.) You can disable both ground fault protective functions (not recommended); refer to the firmware manual. Implementing the emergency stop function For further information, contact your local ABB representative. Implementing the grid fault ride-through function See the firmware manual.
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60 Planning the electrical installation 230 V AC 230 V AC + 24 V DC Relay outputs Varistor RC filter Diode...
Electrical installation 61 Electrical installation Contents of this chapter This chapter describes the electrical installation procedure of the wind turbine converter. WARNING! Only qualified electricians are allowed to carry out the work described in this chapter. Read the complete safety instructions of the converter. If you ignore them, injury or death, or damage to the equipment can occur.
1000 V DC. The insulation resistance of an ABB generator must exceed 100 Mohm (reference value at 25 °C (77 °F)). For the insulation resistance of other generators, please consult the manufacturer’s instructions.
Electrical installation 63 Connection procedure ■ WARNING! See and obey the safety instructions of the converter. If you ignore them, injury or death, or damage to the equipment can occur. WARNING! Apply grease to stripped aluminum conductors before attaching them to non-coated aluminum cable lugs.
64 Electrical installation Connecting the generator cables Connection diagram ■ Connection procedure ■ WARNING! See and obey the safety instructions of the converter. If you ignore them, injury or death, or damage to the equipment can occur. WARNING! Apply grease to stripped aluminum conductors before attaching them to non-coated aluminum cable lugs.
Electrical installation 65 Connecting the external power supply cable for the auxiliary circuit During start-up and maintenance the converter auxiliary circuit can be supplied from the customer diesel generator. Connect the external diesel generator supply to the terminals X4:5/6/7/8, that are located in the plinth. Then switch OFF the auxiliary voltage circuit breaker Q2 and switch ON the breaker Q3.
66 Electrical installation Connecting the control cables Control cable connectors are located in the plinth. See the circuit diagrams delivered with the converter. Control connections in the plinth Connector Description X3.1 Customer connection for Ethernet X3.2 Master-slave Ethernet connection Customer connection to fieldbus Customer connection for I/O Customer connection for auxiliary power output / Diesel generator input X115...
Installation checklist 69 Installation checklist Contents of this chapter This chapter contains instructions for checking the installation of the wind turbine converter. Before you start Check the mechanical and electrical installation of the converter before start-up. Go through the checklist together with another person. WARNING! Only qualified electricians are allowed to carry out the work described below.
70 Installation checklist Checklist Make sure that … The ambient operating conditions meet the specifications given in the technical data. The converter has been fixed properly on an even, horizontal and non-flammable floor and if necessary due to vibration etc, also from top to the wall or roof. The cooling circuit joints are tight.
Maintenance Contents of this chapter This chapter contains preventive maintenance intervals and instructions. Maintenance intervals The table below shows the maintenance tasks which can be done by the end user. For more information, consult your local ABB Service representative (www.abb.com/searchchannels).
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Replacement Maintenance and component replacement intervals are based on the assumption that the equipment is operated within the specified ratings and ambient conditions. ABB recommends annual inspections to ensure the highest reliability and optimum performance. Long term operation near the specified maximum ratings or ambient conditions may require shorter maintenance intervals for certain components.
For resetting the running time after a fan replacement, contact ABB. Replacement fans are available from ABB. Do not use other than ABB specified spare parts. All the fans in the converter are of the same type.
74 Maintenance Replacing the cooling fan of the converter module ■ WARNING! Only qualified electricians are allowed to do this work. Read the complete safety instructions of the converter. If you ignore the instructions, physical injury, death, or damage to the equipment can occur. 1.
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Maintenance 75 Air flow direction is towards the converter module.
76 Maintenance Replacing the fans of the main breaker cubicle ■ WARNING! Only qualified electricians are allowed to do this work. Read the complete safety instructions of the converter. If you ignore the instructions, physical injury, death, or damage to the equipment can occur. 1.
Maintenance 77 Replacing the cooling fan of the auxiliary control cubicle ■ WARNING! Only qualified electricians are allowed to do this work. Read the complete safety instructions of the converter. If you ignore the instructions, physical injury, death, or damage to the equipment can occur. 1.
78 Maintenance Replacing the cooling fan of the LCL filter cubicle ■ WARNING! Only qualified electricians are allowed to do this work. Read the complete safety instructions of the converter. If you ignore the instructions, physical injury, death, or damage to the equipment can occur. 1.
Maintenance 79 Fuses Replacing the DC fuses ■ WARNING! Only qualified electricians are allowed to do this work. Read the complete safety instructions of the converter. If you ignore the instructions, physical injury, death, or damage to the equipment can occur. 1.
80 Maintenance Replacing the AC fuses ■ WARNING! Only qualified electricians are allowed to do this work. Read the complete safety instructions of the converter. If you ignore the instructions, physical injury, death, or damage to the equipment can occur. 1.
Maintenance 81 Replacing the DC chopper fuses ■ WARNING! Only qualified electricians are allowed to do this work. Read the complete safety instructions of the converter. If you ignore the instructions, physical injury, death, or damage to the equipment can occur. 1.
82 Maintenance Converter module Replacing the converter module ■ Required tools • installation stand (3AUA0000154508) • tool for detaching the module pipe connections (3AXD50000021445) • lifting rope with a hook • a wrench (SW 30 mm) • a set of screwdrivers (M6, M8). WARNING! Only qualified electricians are allowed to do this work.
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Maintenance 83 6. Unplug the fiber optic cables and X50 connectors. Carefully place the cables on top of the fan. 7. Remove the pipe clamps from top tubes. 8. Open top liquid connection nut with 30 mm wrench. Pull the pipe upwards to release it.
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84 Maintenance 9. Open two module support bolts from top. 10. Open bottom liquid connection with 30 mm wrench. Pull the pipe downwards to release 11. Remove the module bottom support by opening 3 pcs of M6 screws and 2 pcs of M8 screws.
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Maintenance 85 14. Open the installation stand (optional) and place it in front of the module.
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86 Maintenance 15. Install 3 pcs of M6 Taptite® screws (removed earlier) to secure the installation stand. Tightening torque is 5 N·m (3.7 lbf·ft).
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Maintenance 87 16. Insert M8 bolt to the hole on the top part of the module and turn it clockwise. This will help in pushing the module out. It also helps in pulling simultaneously from the handle while turning the screw. 17.
Capacitor failure is usually followed by the converter module and module fuse failure, or a fault trip. Contact ABB if capacitor failure is suspected. Replacements are available from ABB. Do not use other than ABB specified spare parts.
2. Insert the new card in reverse order. Tightening torque for fastening screw is 0.7 N·m (0.5 lbf·ft). Repeat the replacement procedure for other BCU control unit if needed. Replacement illustration ■ Main circuit breaker For ABB-SACE main circuit breaker maintenance, refer to the manufacturer’s instructions (1SDH001000R0002).
90 Maintenance UPS unit External batteries of the UPS unit can be replaced without removing the UPS unit from the cabinet. For maintenance procedures, see the manufacturer's instructions. Auxiliary control cubicle Description UPS unit Switch for battery supply Battery 1 Battery 2...
Technical data 91 Technical data Contents of this chapter This chapter contains the technical data of the ACS880-87LC converter. Ratings Generator-side converter ratings Grid-side converter ratings Converter type Cos phi n,gen grid n,grid ACS880-87LC- = 690 V 3200A/3200A-7 6700 6400 7649 6884 6400...
100 m (328 ft). Derating is allowed only on maximum continuous current for grid and generator. If the installation site is located higher than 2000 m (6562 ft) above sea level, contact your local ABB representative. Alternatively the derating can be handled with cooling liquid temperature derating. 1 °C for every 100 m.
Technical data 93 Main circuit DC fuses ■ AC fuses Converter type Type ACS880-87LC- A rms = 690 V 3200A/3200A-7 Bussmann 170M6501 1400 2×16 3AXD10000011539 Fuses for the voltage measurement board BAMU ■ The fuse type is Mersen FR14GR69V2T, 2 A; 2×3 pcs Dimensions, weights and free space requirements See also the dimension drawings delivered with the converter.
94 Technical data Tightening torques ■ Screw size Torque 4 N·m (3 lbf·ft) 9 N·m (6.6 lbf·ft) 22 N·m (16.2 lbf·ft) 42 N·m (31 lbf·ft) 70 N·m (52 lbf·ft) 120 N·m (89 lbf·ft) For the drawings and dimensions of the grid cable terminals, see the dimension drawings. Terminal and lead-through data for the generator cables You can connect cable lugs to both sides of the cable connection busbar.
Total harmonic current distortion (n = 2…40) < 5%. Total harmonic voltage distortion (n = 2…40) < 5%, when R ≥ 7. Requirements for the grid connection For applicable grid codes, contact your local ABB representative. Generator connection data Generator types AC induction generators, permanent magnet generators Voltage (U 0…110% U...
1) Condensation and/or formation of ice inside the converter cabinet is not allowed in any operational circumstances. 2) ABB additional extension to ambient surrounding temperature, outside the cabinet, -30 °C…55 °C (-22 °F…131 °F). See also the instructions for ambient temperature derating.
Technical data 97 Ambient conditions Environmental limits for the converter are given below. The converter must be used in a heated, indoor controlled environment. Operation installed for Storage in protective Transportation in protect- stationary use package ive package Installation site altitude 0 …...
IEC 62635 guidelines. To aid recycling, plastic parts are marked with an appropriate identification code. Contact your local ABB distributor for further information on environmental aspects and recycling instructions for professional recyclers. End of life treatment must follow international and local regulations.
Technical data 99 Applicable standards The converter complies with the standards below. The compliance with the European Low Voltage Directive is verified according to standards EN 61800-5-1. Safety of machinery. Electrical equipment of machines. Part 1: General require- •EN 60204-1:2006 + ments.
100 Technical data Regulatory Compliance Mark (RCM) RCM marking is pending. Applies as Compliance with EN 61800-3:2004. EAC (Eurasian Conformity) marking EAC (Eurasian Conformity) mark Product complies with the technical regulations of the Eurasian Customs Union. EAC mark is required in Russia, Belarus and Kazakhstan.
Equipment (victim) 2. An EMC plan for preventing disturbances is drawn up for the installation. A template is available from the local ABB representative. 3. The generator and control cables are selected as specified in the hardware manual. 4. The converter is installed according to the instructions given in the hardware manual.
Notwithstanding any other provision to the contrary and regardless whether the contract is terminated or not, ABB and its affiliates are under no circumstances liable for damages and/or losses related to such security breaches, any unauthorized access, interference, intrusion, leakage and/or theft of data or information.
BCU-x2 control unit 103 BCU-x2 control unit Contents of this chapter This chapter describes the layout and connections of the BCU-x2 control unit and contains the specifications of the inputs and outputs of the control unit. For the actual connections of the control units used in the ACS880-87LC converter, see the circuit diagrams delivered with the converter.
104 BCU-x2 control unit Layout and connections Description I/O terminals SLOT 1 I/O extension, encoder interface or fieldbus adapter module connection. (This is the sole location for an FDPI-02 diagnostics and panel interface.) SLOT 2 I/O extension, encoder interface or fieldbus adapter module connection SLOT 3 I/O extension, encoder interface or fieldbus...
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BCU-x2 control unit 105 Description Analog inputs Analog outputs Digital inputs, Digital input interlock (DIIL) XRO3 XD24 XPOW XDIO Digital input/outputs XD2D Drive-to-drive link XRO2 XD24 +24 V output (for digital inputs) XDIO XETH Ethernet port XPOW External power input XRO1 XRO1 Relay output RO1...
106 BCU-x2 control unit Connector data Power supply (XPOW) Connector pitch 5 mm, wire size 2.5 mm 24 V (±10%) DC, 2 A External power input. Two supplies can be connected to BCU for redundancy. Relay outputs RO1…RO3 Connector pitch 5 mm, wire size 2.5 mm (XRO1…XRO3) 250 V AC / 30 V DC, 2 A Protected by varistors...
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BCU-x2 control unit 107 Analog outputs AO1 and AO2 (XAO) Connector pitch 5 mm, wire size 2.5 mm 0…20 mA, R < 500 ohm load Frequency range: 0…500 Hz Resolution: 11 bit + sign bit Inaccuracy: 2% of full scale range XD2D connector Connector pitch 5 mm, wire size 2.5 mm Physical layer: RS-485...
BCU-x5 control unit 109 BCU-x5 control unit Contents of this chapter This chapter describes the layout and connections of the BCU-x5 control unit and contains the specifications of the inputs and outputs of the control unit. For the actual connections of the control units used in the ACS880-87LC converter, see the circuit diagrams delivered with the converter.
110 BCU-x5 control unit Layout and connections Description I/O terminals SLOT 1 I/O extension, encoder interface or fieldbus adapter module connection. (This is the sole location for an FDPI-02 diagnostics and panel interface.) SLOT 2 I/O extension, encoder interface or fieldbus adapter module connection SLOT 3 I/O extension, encoder interface or fieldbus...
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BCU-x5 control unit 111 Description Analog inputs Analog outputs Digital inputs, Digital input interlock (DIIL) XDIO Digital input/outputs XRO3 XD24 XPOW XD2D Drive-to-drive link XD24 +24 V output (for digital inputs) XRO2 XETH Ethernet port XDIO XPOW External power input XRO1 Relay output RO1 XRO1...
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112 BCU-x5 control unit Description XCAN CAN bus connection XCAN...
BCU-x5 control unit 113 Connector data Power supply (XPOW) Connector pitch 5 mm, wire size 2.5 mm 24 V (±10%) DC, 2 A External power input. Two supplies can be connected to BCU for redundancy. Relay outputs RO1…RO3 Connector pitch 5 mm, wire size 2.5 mm (XRO1…XRO3) 250 V AC / 30 V DC, 2 A Protected by varistors...
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114 BCU-x5 control unit Analog outputs AO1 and AO2 (XAO) Connector pitch 5 mm, wire size 2.5 mm 0…20 mA, R < 500 ohm load Frequency range: 0…500 Hz Resolution: 11 bit + sign bit Inaccuracy: 2% of full scale range XD2D connector Connector pitch 5 mm, wire size 2.5 mm Physical layer: RS-485...
Dimension drawings 115 Dimension drawings Contents of this chapter This chapter contains dimension drawings of the wind turbine converter. See also the dimension drawings delivered with the converter.
Cooling and heating 119 Cooling and heating Contents of this chapter This chapter deals with the internal cooling circuit. Hardware description General ■ The internal cooling circuit covers the heat-generating electrical components and transfers the heat to the external cooling circuit that is usually part of a larger external cooling system. Diagram of the internal cooling and heating circuit ■...
Install a bleeding valve at the highest point of the cooling circuit. Bleeding valve is not included in the ABB converter delivery as standard. It can be ordered as an option (+G422). The materials used in the cooling system are listed in section Specifications (page 125).
122 Cooling and heating Mechanical installation Connecting the internal cooling circuit to a customer cooling unit ■ The converter delivery does not include the liquid cooling unit that is to be connected to the converter cabinet. Connecting the liquid pipes Note: It is recommended to use closing valves in the pipe connections of the cooling circuit.
The most practical location for the valve is usually near or at the cooling unit. Bleeding and draining valves are not included in the standard delivery of the ABB converter. The bleeding valve is option +G422.
124 Cooling and heating Draining the internal cooling circuit You can drain the internal cooling circuit through the cooling unit as follows: Note: Draining coolant into the sewer system is not allowed. WARNING! High-pressure hot coolant may be present in the internal cooling circuit. No work on the cooling circuit is allowed until the pressure is lowered down by stopping the pumps and draining coolant.
(RH) and the ambient temperature To avoid all kind of condensation inside the converter: ABB highly recommends to maintain / heat up the cooling liquid +10 °C (+50 °F) above the ambient temperature (ie, air temperature outside the converter), within the limits that the cooling liquid minimum temperature is +5 °C (41 °F) and maximum temperature is +60 °C (140 °F).
Maximum design pressure: 500 kPa Recommended design maximum pressure: 380 kPa. Note: Contact ABB if you need to rise the pressure over this limit. The pressure difference must be within given limits to avoid malfunction due to excessive coolant flow.
This may build up sediment in the liquid. Approved coolants • BASF Glysantin® G30® or Valvoline Zerex G30®. For other coolants, contact your local ABB representative. WARNING! Do not mix different approved coolants in any conditions! Replace the cooling liquid always with same cooling liquid! Mixing different coolant types is a risk for cooling system corrosion.
128 Cooling and heating Cold start Circuit diagrams with cold start sequence are shown below. See also the circuit diagrams delivered with the converter.
Product and service inquiries Address any inquiries about the product to your local ABB representative, quoting the type designation and serial number of the unit in question. A listing of ABB sales, support and service contacts can be found by navigating to www.abb.com/searchchannels.