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Summary of Contents for Control Techniques Unidrive LV Series
- Page 1 Installation Guide Unidrive LV Unidrive VTC LV Unidrive LFT LV model sizes 1 to 3 Universal Variable Speed Drive for induction and servo motors 0.37kW to 22kW (0.5HP to 30HP) Part Number: 0460–0037 Issue Number: 1...
- Page 2 Drive software version This product is supplied with the latest version of user-interface and machine-control software. If this product is to be used with other Control Techniques variable speed drives in an existing system, there may be some differences between their software and the software in this product.
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Page 3: Table Of Contents
Contents Appendix Chapter Motor Connections Safety Information Cable length Warnings, Cautions and Notes Multiple motors Electrical safety – general warning System design UL Listing Information Environmental limits Data Compliance with regulations Drive Safety of personnel Optional RFI filters Risk analysis Motor Adjusting parameters Installing the Drive... - Page 4 Declaration of Conformity These products comply with the Low Voltage Control Techniques plc Directive 73/23/EEC, the Electromagnetic The Gro Compatibility (EMC) Directive 89/336/EEC and the Newtown CE Marking Directive 93/68/EEC. Powys SY16 3BE UNI1201 UNI1202 UNI1203 UNI1204 UNI1205 UNI2201 UNI2202 UNI2203 W.
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Page 5: Safety Information
Environmental limits Safety Information Instructions in this Installation Guide regarding transport, storage, installation and use of Drives must be complied with, including the specified environmental limits. Drives must not be subjected to excessive physical force. Warnings, Cautions and Notes Compliance with A Warning contains information which is essential regulations for avoiding a safety hazard. -
Page 6: Risk Analysis
Before connecting the supply to the Drive, it is Standard squirrel-cage induction motors are important that you understand the operating designed for single-speed operation. If it is controls and their operation. If in doubt, do not intended to use the capability of the Drive to run a adjust the Drive. -
Page 7: Installing The Drive
Installing the Drive Authorized access The enclosure should prevent Warning access by anyone except for authorized, trained service Adhere to the instructions personnel. The mechanical and electrical Warning installation instructions must be Fire enclosure adhered to. Any questions or The Drive case is not classified doubt should be referred to the Warning as a fire enclosure. -
Page 8: Emc Considerations
EMC considerations The second environment typically includes an industrial low-voltage power supply Depending on the requirements of the installation, network which does not supply Caution one of the following levels of electromagnetic buildings used for domestic compatibility (EMC) should be adopted: purposes. -
Page 9: Planning The Installation
Table 2–1 Fuse ratings for all versions of Planning the installation the Unidrive LV Instructions in numbered steps Model Fuse rating UNI 1201 The instructions in this section are contained in numbered steps. In some of these steps you will UNI 1202 10 A need to make a note of a value for future reference... - Page 10 Table 2–2 Cable sizes Table 2–3 Maximum cable lengths Model Cable size Model Maximum cable length * switching UNI 1201 1.5 mm frequency at 3kHz) UNI 1202 2.5 mm UNI 1203 2.5 mm UNI 1201 UNI 1204 2.5 mm UNI 1202 UNI 1205 2.5 mm UNI 1203...
- Page 11 Isolator switch in the motor cable The Drive has two forms of thermal protection for the power output stage (IGBT bridge), as follows: An isolator switch may be connected in the motor cable for safety purposes. Refer to the A thermistor mounted on the heatsink monitors following Warning and Note.
- Page 12 Unidrive LFT LV Refer to Table 2–6 to find the maximum continuous output current that Frequency / speed 50Hz can be obtained for the ambient temperature 1500 for a standard S4/S5 duty-cycle or for continuous operation. Refer to a Drive Centre or distributor for information on other duty ratios.
- Page 13 Maximum permissible continuous output current for Unidrive LV and Unidrive VTC LV Table 2–5 40° ° C (104°F) Nominal Maximum permissible ambient rating continuous output current Model 3kHz 4.5kHz 6kHz 9kHz 12kHz UNI 1201 0.37 kW 2.1 A 2.1 A 2.1 A 2.1 A 2.1 A...
- Page 14 Maximum permissible output current for Unidrive LFT LV Table 2–6 (at 9kHz switching frequency) Model Nominal Maximum permissible output current rating Standard duty cycle Continuous Continuous at 40° ° C operation at 50° ° C operation at 40°C UNI 1201 LFT 0.37 kW 2.1 A 2.1 A...
- Page 15 Using an RFI filter Using a braking resistor For compliance with the emission Braking occurs when the Drive is decelerating the standards such as EN 50081-1 or EN 50081-2, use motor, or is preventing the motor from gaining the recommended RFI filter as shown in speed due to mechanical influences.
- Page 16 Optimization of the braking resistor requires a When a braking resistor is to be mounted careful consideration of the braking duty. This is outside the enclosure, ensure that it is mounted described more fully in Optimizing an optional braking in a ventilated metal housing that will perform the following functions: resistor in the Unidrive Advanced User Guide.
- Page 17 For compliance with EMC emission Enclosure layout standards, ensure the enclosure is fitted with an unpainted metal back-plate for mounting the Use one of the following enclosure Drive and RFI filter. For example, a zinc plated layouts, depending on the requirements of the steel back-plate is suitable (see Figure 2–5).
- Page 18 Optional braking resistors as required for the Drives External: Mount on top surface of enclosure. Internal: Mount in top part of enclosure. Overload protection device Drives ≥100mm Ensure minimum ≥5mm ≥5mm clearances are (4in) (¼in) (¼in) respected. Back-plate System controller Locate as required.
- Page 19 Optional braking resistors as required for the Drives External: Mount on top surface of enclosure. Internal: Mount in top part of enclosure. Overload protection device Alternative location of fuses or MCBs Locate as required. Drives and RFI filters ≥5mm ≥5mm Ensure minimum ≥100mm (¼in)
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Page 20: Calculating The Enclosure Size
Power in Watts dissipated by all heat Calculating the sources in the enclosure enclosure size Heat transmission coefficient of the enclosure material in W/m /°C Add the dissipation figures from step 4 of Example Planning the installation for each Drive that is to be installed in the enclosure. - Page 21 Insert the following values: Where: 40°C Air-flow in m per hour Maximum ambient temperature in °C 30°C outside the enclosure Maximum ambient temperature in °C 430W inside the enclosure The minimum required heat conducting area is then: Power in Watts dissipated by all heat sources in the enclosure = 7.8m (85ft ) 5.5(40 - 30)
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Page 22: Installing The Drive And Rfi Filter
Installing the Drive and RFI filter Lifting the Drive The weight of model size 3 is Warning 22kg (49 lbs). Use appropriate safeguards when lifting this model. Removing the terminal covers Figure 2–8 View from the underside showing The Drive is fitted with one or two terminal covers how a terminal cover is removed depending on the model size. - Page 23 Mounting brackets supplied Surface-mounting the Drive with the Drive Use the two surface-mounting brackets. These are manufactured from metal. Ensure the brackets make direct electrical contact with the Table 2–10 General views of the back-plate; for example, tap M6 ( mounting brackets threaded holes in the back-plate in the positions shown in Figure 2–10 to accept the mounting...
- Page 24 Model size 1 Back-plate Model size 2 Back-plate Figure 2–10 Surface mounting of model sizes 1 and 2 Unidrive LV model sizes 1 to 3 Installation Guide 2-18 Installing the Drive Issue code: uliu1...
- Page 25 Model size 3 Back -plate Figure 2–11 Surface mounting of model size 3 Unidrive LV model sizes 1 to 3 Installation Guide Installing the Drive 2-19 Issue code: uliu1...
- Page 26 Back-plate Model size 1 Back-plate Model size 2 Figure 2–12 Through-panel mounting of model sizes 1 and 2 Unidrive LV model sizes 1 to 3 Installation Guide 2-20 Installing the Drive Issue code: uliu1...
- Page 27 Model Back-plate size 3 Figure 2–13 Through-panel mounting of model size 3 Unidrive LV model sizes 1 to 3 Installation Guide Installing the Drive 2-21 Issue code: uliu1...
- Page 28 If a seal is required between the Drive and the Through-panel mounting the Drive back-plate, attach the foam sealing strip (supplied with the Drive) around the edges of Cut an aperture in the back-plate as shown in the aperture in the back-plate so that the flange Figure 2–12 or 2–13 as appropriate.
- Page 29 Figure 2–16 Dimensions for the fabrication of baffle plates for model size 3 Figure 2–15 Dimensions for the fabrication of baffle plates for model sizes 1 and 2 Attaching a fabricated baffle plate to the heatsink Table 2–12 Methods of attaching the baffle plate Model Method of attachment...
- Page 30 This page is intentionally not used Unidrive LV model sizes 1 to 3 Installation Guide 2-24 Installing the Drive Issue code: uliu1...
- Page 31 Mounting the RFI filter The RFI filters can be surface-mounted only. Mount the RFI filter at the specified location in relation to the Drive. In the case of filter sizes C to D, ensure the terminals face the Drive. LOAD Dimension RFI filter size 4200–0010...
- Page 32 Figure 2–18 Principal dimensions of RFI filters sizes C and D, and the locations of the terminals Unidrive LV model sizes 1 to 3 Installation Guide 2-26 Installing the Drive Issue code: uliu1...
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Page 33: Power Connections
Power connections Dimension RFI filter size 4200–1051 4200–1071 Electric shock risk 15mm 15mm The voltages present in the Warning following locations can cause 160mm 160mm severe electric shock and may be lethal: 305mm 305mm supply cables and 12 in 12 in connections 15mm 15mm... - Page 34 Power and ground terminals STOP function The STOP function does not Warning remove dangerous voltages from the Drive or any external option units. Ground leakage current – model size 3 Warning Ground leakage current is typically 5mA at 220V 50Hz. A fixed ground connection must be made before power is...
- Page 35 Drive Using the gland plate and cable glands Table 2–13 Mechanical data for the Drive terminals When the gland plate(s) are not fitted, objects less than 60mm Model Power Ground in) wide can pass through Warning size terminals terminal the cable entry opening and Size Torque Size...
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Page 36: Wiring Recommendations
Compliance with EMC emission Wiring recommendations standards Observe the wiring recommendations given in this • Strict compliance with emission standards. section. Recommendations are given separately for • When the Drive is installed in a residential the following: area, or adjacent to sensitive electronic equipment such as radio receivers or similar. - Page 37 Routine EMC precautions (model sizes 1 to 3) General features Routine EMC precautions Single power-ground bus-bar, or low- Use four-core cable to connect the motor to impedance ground terminal. the Drive as shown. The ground conductor in the motor cable must be connected only to the Incoming supply ground connected to the ground terminals of the Drive and motor;...
- Page 38 Key to symbols Single power cable Optional external Three-core power cable or braking resistor three single power cables Ground cable Connection to cable armour or shield Maximum length: 50mm (2 in) Alternative safety ground connection Armoured or shielded cable (3-phase + ground) 5 −...
- Page 39 Compliance with EMC emission standards (model sizes 1 and 2) General features Special features for EMC Single power ground bus-bar or low-impedance 12. Drive heatsink directly grounded to the ground terminal. back-plate using the metal mounting-brackets. Ensure that the screws make direct electrical Incoming supply ground connected to the connection to the back-plate, for example by...
- Page 40 Key to symbols Single power cable Optional external Three-core power cable or braking resistor three single power cables Ground cable Connection to cable armour or shield Maximum length: 50mm (2 in) Drive Alternative safety ground connection Armoured or shielded cable (3-phase + ground) No sensitive circuits permitted in this zone...
- Page 41 Compliance with EMC emission standards (model size 3) 13. RFI filter mounted 150mm (6 in) from the Drive. General features The RFI filter casing is directly grounded to the Single power ground bus-bar or low-impedance back-plate by the fixing screws. Minimize the ground terminal.
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Page 42: Variations In The Emc Wiring Recommendations
Terminal block in the enclosure Variations in the EMC wiring recommendations The motor cable shields should be bonded to the back-plate using uninsulated metal cable-clamps which should be positioned as close as possible to Control wiring the terminal block. Keep the length of power conductors to a minimum and ensure that all Control wiring which is connected to the Drive and sensitive equipment and circuits are at least 0.3m... -
Page 43: Signal Connections
Using a motor isolator-switch The motor cable shields should be connected by a very short conductor having a low inductance. The use of a flat metal coupling-bar is recommended; conventional wire is not suitable. The shields should be bonded directly to the coupling-bar using uninsulated metal cable-clamps. - Page 44 Unidrive LV model sizes 1 to 3 Installation Guide 2-38 Installing the Drive Issue code: uliu1...
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Page 45: Motor Connections
Multiple motors Motor Connections Open-loop only If the Drive is to control more than one motor, make Cable length connections as shown in Figure A–1. The maximum cable lengths given in the table in Chapter 2 Installing It is not recommended that a Drive is operated with the Drive apply to the total length of cable from the a motor-cable length greater than that specified in Drive to the farthest motor. - Page 46 Unidrive LV model sizes 1 to 3 Installation Guide Motor connections Issue code: uliu1...
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Page 47: Ul Listing Information
Table B–1 Maximum continuous output UL Listing Information current for standard and VTC models The Drive conforms to UL listing requirements only Model FLC (A) when the following are observed: UNI 1201 • The Drive is installed in a type 1 enclosure, or UNI 1202 better, as defined by UL50 UNI 1203... - Page 48 Unidrive LV model sizes 1 to 3 Installation Guide UL listing Issue code: uliu1...
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Page 49: Data
Data Drive Power and current ratings The input current is affected by the supply voltage and impedance. Therefore, to aid the selection of cables and fuses, the values of Maximum continuous input current stated are for the worst-case condition. The values of maximum current for models 1201 to 1205 are stated for a 200V supply rated at ten times the kVA of the Drive, with 2% negative... - Page 50 Unidrive LV and Unidrive VTC LV (at 50° ° C ambient temperature) Model Maximum permissible continuous output current 3kHz 4.5kHz 6kHz 9kHz 12kHz UNI 1201 2.1 A 2.1 A 2.1 A 2.1 A 2.1 A UNI 1202 2.8 A 2.8 A 2.8 A 2.8 A 2.8 A...
- Page 51 Current ratings supply requirements Continuous: Not less than the continuous current Voltage: 200V ~ 240V ±10% rating of the Drive No. of phases: 3 Repetitive peak: Not less than twice the continuous current of the Drive. Maximum supply imbalance: 2% negative phase sequence (equivalent to 3% voltage imbalance between phases) Motor requirements Frequency range: 48 to 62 Hz...
- Page 52 Ingress protection Immunity Gland plate(s) not fitted: IP00 Compliance with immunity standards does not depend on installation details. Drives meet Gland plate(s) fitted; cable glands not fitted: IP10 EN50082–2 (generic immunity standard for the industrial environment) and the following Gland plate(s) fitted; cable-glands fitted: specifications from the IEC61000–4 group (derived IP40, NEMA 1 from IEC801):...
- Page 53 The optional RFI filter specified below must be used: Power Drive Systems standard EN61800–3 Drive model Use RFI filter... Type Part number The Drive meets the immunity requirements of UNI 1201 4200–0010 EN61800–3 irrespective of the environment in which it is operating. UNI 1202 4200–0010 The emission requirements of this standard are also...
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Page 54: Optional Rfi Filters
Frequencies and speed Optional RFI filters switching frequency Ratings Unidrive LV and Unidrive VTC LV: 3kHz nominal (selectable up to 12kHz) Type Part number Max. Ingress Unidrive LFT LV: 9kHz nominal (selectable from continuous protection 3kHz to 12kHz) current Maximum output frequency (open-loop): 2000Hz 4200–0010 10 A IP20... - Page 55 Discharge resistors A and B: 330KΩ in a star network between phases, with the star point connected by a 1MΩ resistor to ground. C to D: 10MΩ between each phase and ground. The discharge resistors are fitted internally. Overall dimensions Type Part Dimension...
- Page 56 Unidrive LV model sizes 1 to 3 Installation Guide Data Issue code: uliu1...
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