Nidec Leroy Somer Powerdrive MD2SL Series Installation And Maintenance Manual

Nidec Leroy Somer Powerdrive MD2SL Series Installation And Maintenance Manual Manual pdf 19 page image

19CONNECTIONSPowerdrive MD2SL Installation and maintenance5077 - 2017.12 / ben3 - CONNECTIONS• All connections work must be performed byqualified electricians in accordance with the laws inforce in the country in which the drive is installed. Thisincludes earthing to ensure that no directly accessiblepart of the drive can be at the mains voltage or any othervoltage which may be dangerous.• The drive must be supplied through an approvedcircuit-breaking device so that it can be powered downsafely.• The optional isolator supplied with the drive doesnot isolate the drive input busbars. It must withoutfail be associated with a circuit-breaking device in theswitchboard.• The drive power supply must be protected againstoverloads and short-circuits.• Check that the voltage and current of the drive. themotor and the mains supply are compatible.• The voltages on the connections of the mains supply.the motor. the braking resistor or the filter may causefatal electric shocks. The protective plates supplied withthe drive must always be installed correctly to protect theuser against electric shocks.• Only one permanent magnet motor can be connectedto the drive output. It is recommended to install a circuit-breaking device between the permanent magnet motorand the drive output to eliminate the risk of hazardousvoltage feedback when performing maintenance work.• See also the recommendations in section 7.3.1 - Power Terminals3.1.1 - OverviewPowerdrive MD2SL power connections are detailed for eachmodel in §3.1.4.3.1.2 - Terminal sizes and torque settingsFunctions/connections Refs.Type of connection and tightening torque180T to 270T 340T to 1700T340TH to 1800THMains power supply L1. L2. L3. or R. S. TSee §3.1.4 M10 screw bolt - 20 Nm / 15 lb.ftMotor outputs U. V. w See §3.1.4Earth PE See §3.1.4 M10 bolt - 20 Nm / 15 lb.ft M8 bolts - 12 Nm / 9 lb.ftBraking resistor (1) BR1. BR2. PESee §3.1.4 M8 screw bolt - 12 Nm / 9 lb.ftEMC commoning link P4. P5 see §4.4.3 Torx screws Ø20 - 4 Nm / 3 lb.ftOptional externalemergency stop X1-1. X1-2Do not exceed the indicated maximum tightening torque.(1) If braking transistor is fitted.3.1.3 - Electronics and forced ventilationpower supplyThe control electronics and forced ventilation units aresupplied through a single-phase transformer which primaryis connected to terminals L1-L2 of the power supply. Ifnecessary. this transformer can be supplied with an externalpower source (PX4 terminal block on fuse board).3.1.3.1 - Electrical characteristics:Voltage Maximum powerSecondary 1(Electronicspower supply)230 Visolated100 VAThe neutral of theelectronics powersupply not connected to earthSecondary 2(Forcedventilation andauxiliaries powersupply)230 Vconnectedto earth180T to 570T : P = 200 VA750T to 1100T : P = 400 VA1400T to 1700T : P = 600 VA400TH to 600TH : P = 200 VA750TH to 1200TH : P = 400 VA1500TH to 1800TH: P = 600 VA3.1.3.2 - Fuse boardsDepending on the rating. Powerdrive MD2SL may includeone or more identical fuses board:- 180T to 570T & 340TH to 600TH : 1 board- 750T to 1100T & 750TH to 1200TH : 2 boards- 1400T to 1700T 1500TH to 1800TH : 3 boardsF1F2 F3 F4 F5 F6F9F7PX4460V(T)600V(TH)480V(T)690V(TH)400V(T)500V(TH)P1F8400V(T) / 500V(TH)460V(T) / 600V(TH)480V (T) / 690V (TH)P2P3 P4P6P7 P8InterfaceboardoutputPowerInput S1PowerInput S2Externalpower inputFanControlFan1 Fan2 Fan3 Fan4 Fan5Position the F8 fuse according to the mains supplyvoltage