Danfoss EM-PMI375-690V User Manual

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EM-PMI375-690V

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Page 1 User Guide Motor / Generator EM-PMI375-690V www.danfoss.com...
Page 2 User Guide EM-PMI375-690V Revision history Table of revisions Date Changed March 2025 Sections updated: Product naming convention, Low voltage connections 0102 November 2024 First edition 0101 © Danfoss | March 2025 BC500736354623en-000102...
Page 3: Table Of Contents
Connection diagram................................43 Cable gland assembly and power line connection....................44 Low voltage connections...............................50 Grounding connections................................. 55 Anti-condensation heater connections..........................57 Operation Operation conditions..................................58 Condition monitoring during operation..........................58 Recommended lubricants................................59 Recommended coolants................................59 Emergency operation...................................59 © Danfoss | March 2025 BC500736354623en-000102 | 3...
Page 4 User Guide EM-PMI375-690V Contents Maintenance Regular maintenance................................... 61 Cleaning......................................62 Bearings and lubrication................................63 Cooling system maintenance..............................66 Dismounting Troubleshooting Aftersales Service policy....................................70 Service parts.....................................70 Disposal Storage, installation and maintenance checklists © Danfoss | March 2025 BC500736354623en-000102...
Page 5: General Information
Rated rotation speed Options. Standard options are indicated by a star (*). In this user guide, all references to the different EM-PMI375 variants refer to the EM-PMI375-690V series electric machines even if the voltage is not mentioned separately. The power input of the machine may require one or two three phase power systems. This is indicated by a power connection option marking DUAL in the machine model code.
Page 6 +TEMP4 Redundant temperature 6 x PT100 in windings surveillance Bearing temperature None None sensors +BTMP1 PT100 in bearings Plug-in connector Anti-condensation heaters None None +HEAT1 One anti-condensation 230 V / 65 W heater © Danfoss | March 2025 BC500736354623en-000102...
Page 7 +BHS option Cable direction Cable direction fixed Cable direction towards D-end +CNE Cable direction towards N- Cable direction towards N-end Rotation sensor (resolver) None No resolver +RES1 Resolver Inbuilt non-contacting resolver, 6-pole pair © Danfoss | March 2025 BC500736354623en-000102 | 7...
Page 8 Deep groove ball bearing, contact seal on mounting direction both sides, any mounting direction (see user guide for details) +BHS Grease lubricated Deep groove ball bearing, open design, horizontal mounting direction (see user guide for details) © Danfoss | March 2025 BC500736354623en-000102...
Page 9 M25 cable gland per phase -DUAL Two galvanically isolated 3 Two connection boxes each containing phase systems one 3 phase system with one M25 cable gland per phase © Danfoss | March 2025 BC500736354623en-000102 | 9...
Page 10 12 x PT100 (two wire) in windings (not surveillance available with +LVB1 option) Bearing temperature sensor * None +BTMP1 PT100 in bearings Plug-in connector Anti-condensation heaters None +HEAT1 One anti-condensation 230 V / 130 W heater © 10 | Danfoss | March 2025 BC500736354623en-000102...
Page 11: Conformity According To Standards
It should be noted, that the commissioning party is responsible for establishing the conformity of the end product with the Directive 2006/42/EC, when the EM-PMI electric machines are fitted into machinery. Warranty Danfoss offers warranty against defects in workmanship and materials for its products. For more information, see General terms and conditions of sale at https://www.danfoss.com/en/terms/sales- conditions/.
Page 12: Responsibility Of The Manufacturer
Duty type according to the IEC60034; Duty with non-periodic load and speed variations Responsibility of the manufacturer Danfoss is responsible for the safety, reliability and performance of the electric machine only if: • Handling, mounting, installation, operation and maintenance are done by qualified and authorized personnel.
Page 13: Safety Information
Magnet warning The symbol is identified by a yellow background, black triangular band, and a black magnet symbol. It indicates strong magnetic field that could cause harm to a person or property. © Danfoss | March 2025 BC500736354623en-000102 | 13...
Page 14: Personal Protective Equipment
• areas in which electric equipment with permanent magnets are stored, mounted, operated or repaired If necessary, perform a special electromagnetic compatibility (EMC) test on the installation. © 14 | Danfoss | March 2025 BC500736354623en-000102...
Page 15 It is the responsibility of the installer to make sure that the equipment or system into which the product is incorporated complies with the EMC legislation of the country of use. Within the European Union, equipment into which this product is incorporated must comply with the EMC Directive 2014/30/EU. © Danfoss | March 2025 BC500736354623en-000102 | 15...
Page 16: Product Overview
Machine structure designed to be able to produce high starting torques (instant torque to non- moving wheel). • Optimized speed range to meet most common gear ratios used in heavy mobile machinery. EM-PMI375-T200 © 16 | Danfoss | March 2025 BC500736354623en-000102...
Page 17 User Guide EM-PMI375-690V Product overview EM-PMI375-T500 EM-PMI375-T800 © Danfoss | March 2025 BC500736354623en-000102 | 17...
Page 18: Intended Use Of The Electric Machine
Operating and performing maintenance for the electric machine without appropriate personal protective equipment. • Using electric machine parts like frame, shaft end or terminal box for climbing or for support for other structures. © 18 | Danfoss | March 2025 BC500736354623en-000102...
Page 19: Used Technology
See Figure below illustrating the magnet topology of the electric machine. The Figure shows the principle only, and is not an exact illustration of the structure. Machine topology Electric machine stator and stator windings Electric machine rotor Permanent magnets in the rotor © Danfoss | March 2025 BC500736354623en-000102 | 19...
Page 20: System Introduction
Product overview System introduction Danfoss delivers complete electric drivetrain solutions for heavy mobile machinery, marine vessels, and buses, enabling seamless transitions to hybrid electric (HEV) and fully electric (EV) vehicles. Our integrated systems reduce fuel consumption, emissions, and noise pollution.
Page 21: Rating Plate
The rating values in the Figure below are not correct for this machine. See the rating plate on the machine and data sheets for the correct values. © Danfoss | March 2025 BC500736354623en-000102 | 21...
Page 22 Maximum rotation speed Insul. class Temperature rating (class) of insulation of the electric machine according to IEC60034-1 Temp. class Temperature rating (class) of individual insulation materials of the insulation according to IEC60034-1 © 22 | Danfoss | March 2025 BC500736354623en-000102...
Page 23: Tightening Torques
Mounting bolts for N-end attachment (support or auxiliary components) 30 Nm Connection box mounting screws 7 Nm Connection box cover plate screws 4 Nm Cable lug 15 Nm Tightening torques to use unless otherwise noted 10.9 12.9 Thread © Danfoss | March 2025 BC500736354623en-000102 | 23...
Page 24: Design Principles
The insulation lifetime expectancy of the electric machine is shown in the following table. Insulation class Continuous measured stator temperature Lifetime expectancy H 180°C 150°C 100 000 h H 180°C 175°C 20 000 h © 24 | Danfoss | March 2025 BC500736354623en-000102...
Page 25: Inverter
If the electric machine is driven with an inverter from a supplier other than Danfoss Editron, the electric machine performance may differ from rated values. The optimum performance of the electric machine is obtained with Danfoss Editron inverters.
Page 26: Mounting Structure
AUX DC - The main machine power driving parameters are shown in the machine rating plate. For more information, contact Danfoss representative. You can connect one of the temperature signals (from the low voltage connector) to the temperature surveillance pin in the inverter and make sure that the inverter has the machine temperature protection feature activated.
Page 27: Shaft Alignment And Load
With angular misalignment, the shafts are at an angle to each other. Figures below illustrate the parallel and angular misalignment. Parallel alignment of the shaft and mating structure © Danfoss | March 2025 BC500736354623en-000102 | 27...
Page 28 For more information, see document DOC-000454. Calculate the relevant values with the help of the document. Contact Danfoss service at https://danfosseditron.zendesk.com/hc/en-gb or send email to editron.service@danfoss.com to obtain the document. © 28 | Danfoss | March 2025 BC500736354623en-000102...
Page 29 User Guide EM-PMI375-690V Design principles External shaft forces of the electric machine © Danfoss | March 2025 BC500736354623en-000102 | 29...
Page 30: Transportation And Storage
Do not touch the electrical terminals when the rotor is rotated. The electrical terminals have dangerous voltage during rotation. Contact Danfoss representative if the rotor can not be rotated. Remove the transportation supports of the electric machine.
Page 31: Transportation And Storage
Install 2 pieces of lifting eyes to the lifting bores in the N-end SAE flange. Lifting eye should be mounted with its full threaded length. Storage Do not touch the electrical terminals when the shaft is rotated. The electrical terminals have dangerous voltage during rotation. © Danfoss | March 2025 BC500736354623en-000102 | 31...
Page 32: Extended Storage
Rotate the shaft of the electric machine once a month. Keep the electric machine in its installation position while in storage. For example, vertically installed electric machines should be stored in vertical position. © 32 | Danfoss | March 2025 BC500736354623en-000102...
Page 33: Installation
Do not touch the electric machine during the insulation resistance check. Discharge the electric machine afterwards. Measure the insulation resistance of the electric machine before and after the installation of the electric machine. © Danfoss | March 2025 BC500736354623en-000102 | 33...
Page 34 Reference value of 500 MΩ has to be exceeded at reference ambient temperature 25°C (measured with 500 V / 1 min insulation resistance test). Contact Danfoss Editron service if the reference value is not exceeded. Measuring the insulation resistance Insulation resistance testers generate lethal voltages.
Page 35 2. Connect all pins of the LV connector, bearing temperature sensors and heaters to the motor frame. 3. Connect the measurement devices ground cable to the motor frame. 4. Connect the measurement probe to the winding 1 phases. © Danfoss | March 2025 BC500736354623en-000102 | 35...
Page 36 2. Connect all pins of the LV connector, bearing temperature sensors and heaters to the motor frame. 3. Connect the measurement devices ground cable to the motor frame. 4. Connect the measurement probe to the winding 2 phases. Dual winding motors - winding 2 © 36 | Danfoss | March 2025 BC500736354623en-000102...
Page 37: Mechanical Installation
It is in some cases possible to make an exception from the limitations of the mounting positions. Document Allowed bearing loads for EM-PMI machines DOC-000454 gives more information about this. Contact Danfoss to obtain the document. If the application is a moving work machine or similar, it is allowed to deviate from the allowed mounting position for the duration of 30 % of the work cycle.
Page 38: Mounting The Electric Machine
Do not exceed the maximum axial and radial forces calculated for the shaft. Document Allowed bearing loads for EM-PMI machines DOC-000454 gives more information about this. Contact Danfoss to obtain the document. Do not use the N-end of the electric machine for mounting the electric machine.
Page 39: Vertical Assembly
Shaft (male) in the N-end of the electric machine with option NE2 is DIN 5480 W50x2x24x8f (EM-PMI375-T200/ T500/T800) or W55x2x26x8a (EM-PMI375-T1100). Vertical assembly In vertical assembly, follow the Steps given in the previous Section Horizontal assembly. © Danfoss | March 2025 BC500736354623en-000102 | 39...
Page 40: Cooling Connections
Connect the electric machine properly to the cooling circuit. Make sure that the coolant flow is equal or higher than rated and the coolant temperature at the inlet of the machine cooling is lower or equal to the © 40 | Danfoss | March 2025 BC500736354623en-000102...
Page 41: Electrical Installation
The figure below shows the components of the high voltage connection box assembly. You are allowed to open only the nuts and bolts that are specified here. Only Danfoss professionals are allowed to open other nuts and bolts in the terminal box.
Page 42 44. assembly and power line connection High voltage connection assembly structure Part number Description Type Bolt, socket head M6 x 16, ISO 7380, A4-70 Plate, T=5 Gasket extruding M8, DIN 934, zinked © 42 | Danfoss | March 2025 BC500736354623en-000102...
Page 43: Connection Diagram
Connection diagram for SINGLE option For an electric machine with option DUAL (two connection boxes each containing one three-phase system), the electrical connection principles from the inverters are shown in the Figure below. © Danfoss | March 2025 BC500736354623en-000102 | 43...
Page 44: Cable Gland Assembly And Power Line Connection
15.0 Nm M32 x 1.5 15.0 Nm M40 x 1.5 20.0 Nm M50 x 1.5 30.0 Nm M63 x 1.5 35.0 Nm M75 x 1.5 80.0 Nm M85 x 2.0 100.0 Nm © 44 | Danfoss | March 2025 BC500736354623en-000102...
Page 45 Tape 1181 or similar. Contrary to the image below and depending on the cable and the cable gland size, you can leave the length A sheath in place for the next step to help the placement of the cable gland and remove the sheath only after the next step. © Danfoss | March 2025 BC500736354623en-000102 | 45...
Page 46 (cover) from 10 mm (distance C) from the gland bottom as shown in Figure below. Before cutting the braid screen, verify that the cable gland spring is correctly positioned against the cable sheath, which must be protected with copper tape. © 46 | Danfoss | March 2025 BC500736354623en-000102...
Page 47 Remove any excess compound emerging from the sides of the cable lugs after the crimping. Verify that the cable lug is evenly compressed with clear hexagonal crimps and that no conductors are broken. See Figure below. © Danfoss | March 2025 BC500736354623en-000102 | 47...
Page 48 Ensure a minimum 10 mm air gap between the cable lug and other metallic structures including the braid of the cable. If the air gap is smaller, use extra insulation shrink tube to cover the lug. © 48 | Danfoss | March 2025 BC500736354623en-000102...
Page 49 Use thread locking compound that makes it possible to remove the screws. (For example Loctite 221). 15. Check the power cable shield grounding, see Chapter Grounding connections. Cable lug and cable gland assembly cross section © Danfoss | March 2025 BC500736354623en-000102 | 49...
Page 50: Low Voltage Connections
For more information and instructions contact the connector manufacturer directly at https:// www.deutschconnector.com/. Recommended cable types for low voltage connections Application Cable type Resolver cabling Shielded cable (twisted pair) Temperature measurement (PT100) Shielded cable (twisted pair) Low voltage connector (1), Deutsch HD34-24-47PE © 50 | Danfoss | March 2025 BC500736354623en-000102...
Page 51 Temperature 1, PT100 (P), windings Temperature 1, PT100 (N), windings Temperature 2 Temperature 2, PT100 (P), windings Temperature 2, PT100 (N), windings Temperature 3 Temperature 3, PT100 (P), windings Temperature 3, PT100 (N), windings © Danfoss | March 2025 BC500736354623en-000102 | 51...
Page 52 Temperature 11, PT100 (P), windings, option TEMP5 Temperature 11, PT100 (N), windings, option TEMP5 Temperature 12 Temperature 12, PT100 (P), windings, option TEMP5 Temperature 12, PT100 (N), windings, option TEMP5 Resolver COS_N Resolver, RES_COS_N, inbuilt non-contacting © 52 | Danfoss | March 2025 BC500736354623en-000102...
Page 53 Resolver, EXCP, inbuilt non-contacting Resolver EXCP Resolver, SHIELD/GROUND, inbuilt non-contacting Resolver shield Bearing temperature measurement connector (optional), both ends of electric machine PT100 pin PT100 pin PT100 ground pin PT100 ground pin © Danfoss | March 2025 BC500736354623en-000102 | 53...
Page 54 Heater, ground / protective earth, M4 screw inside connection box General shielding, ground / protective earth, M4 screw inside connection box Resolver, RES_COS_N, inbuilt non-contacting Resolver, RES_COS_P, inbuilt non-contacting Resolver, RES_SIN_N, inbuilt non-contacting Resolver, RES_SIN_P, inbuilt non-contacting © 54 | Danfoss | March 2025 BC500736354623en-000102...
Page 55: Grounding Connections
The grounding points on the frame of the electric machine are for safety grounding, and signal cables and power cable shields have their own grounding points. © Danfoss | March 2025 BC500736354623en-000102 | 55...
Page 56 Testing the low voltage (measurement signal) cable shield grounding (earthing) The low voltage (measurement signal) cable shield is connected to the grounding (earthing) point. After cable installation, and any time when needed, make sure that the grounding (earthing) connection is valid. © 56 | Danfoss | March 2025 BC500736354623en-000102...
Page 57: Anti-Condensation Heater Connections
The installed anti-condensation heater must be supplied with 230 Vac power. The heater connector used is HUMMEL Twilock connector, illustrated in Figure below. Connection of the heater element If the electric machine has an anti-condensation heater and failure is suspected, contact Danfoss representative. ©...
Page 58: Operation
For the maximum coolant liquid temperature at the inlet of the coolant circuit, see the product data sheet. If electric machine operation limits are exceeded, please contact Danfoss representative. Condition monitoring during operation Supervise the electric machine during operation to make sure that the electric machine operates correctly and has a designed lifetime.
Page 59: Recommended Lubricants
Cooling of the electric machine fails Cooling system failure can be caused by sediment accumulating in the cooling system tubes. Try opening the possible blockage by changing the coolant flow direction. See also Chapter Cooling system maintenance. © Danfoss | March 2025 BC500736354623en-000102 | 59...
Page 60 (1/2) of the rated speed and maximum 20 % of the nominal torque may be used. In such case, the electric machine may be operated for maximum one hour. Repair the cooling system as soon as possible. For further information, contact Danfoss representative. Danfoss service contact information Contact Danfoss service at https://danfosseditron.zendesk.com/hc/en-gb...
Page 61: Regular Maintenance
Bolt tightness. Tighten to proper value if necessary. Applies to bolts and screws that are discussed in this user guide. See Chapter Tightening torques. Bearings Detect any unusual noise or vibration. If exists, contact Danfoss. Enclosure and connected Check cleanliness. Clean if necessary. See Chapter Cleaning. parts Shaft seals Check the wear.
Page 62: Cleaning
Check groundings (earthings). Make sure that the connection resistance is correct. Re-connect if necessary. Anti-condensation Check anti-condensation heater connections and resistance, if the option heater is installed. If needed, contact Danfoss. Cooling system Operation Functioning. Cooling system functions as specified. Tubing and connection No visible leakage.
Page 63: Bearings And Lubrication
The bearing lifetime is a combination of both mechanical bearing lifetime and bearing grease lifetime, and is shown in the figures below, both for horizontal and vertical mounting. © Danfoss | March 2025 BC500736354623en-000102 | 63...
Page 64 The information of bearing lifetime and bearing grease lifetime are estimations only to provide a magnitude of them. The bearing lifetime and bearing grease lifetime in customer application may vary. Danfoss is not responsible for the actual bearing lifetime in use. For further information, contact Danfoss representative.
Page 65 4. Use grease piston to enter specific amount of grease into the grease nipple. 5. If possible, let the electric machine run approximately one hour to let the old grease exit. 6. Install the plug(s) on the grease nipple(s) and on the grease escape hole(s). © Danfoss | March 2025 BC500736354623en-000102 | 65...
Page 66: Cooling System Maintenance
(sediment) accumulating to the cooling system. The quality of the coolant must be checked yearly. The mixture of coolant fluid must be according to specification. See Chapter Recommended coolants. © 66 | Danfoss | March 2025 BC500736354623en-000102...
Page 67: Dismounting
4. If force is required, use the bores in D-end flange to push the electric machine out from the mating structure, or use some other method that does not damage the electric machine. 5. Lift the electric machine off. Support the electric machine when lifting. © Danfoss | March 2025 BC500736354623en-000102 | 67...
Page 68: Troubleshooting
DC resistance meter and compare to manufacturer specifications. Replace the electric machine if necessary. Inverter switching frequency too low. If other than a Danfoss Editron inverter is used, ensure that the switching frequency is at least equal to the required minimum switching frequency of the motor.
Page 69 Demagnetization of magnets due to Check that the back-EMF of the motor is within specifications. Contact local overheating. Danfoss representative. Replace the electric machine if necessary. Bearing fault. Check the bearing temperature, lubrication and conditions. Contact local Danfoss representative for further information.
Page 70: Aftersales
Service parts The recommended service parts are listed in this Section. Maintenance procedures not described in this user guide require special tools and instructions. Contact Danfoss for more information and purchasing. EM-PMI375-T200/T500/T800 Bearing kit (Non-insulated) Quantity Part...
Page 71 M8 x 30 | DIN 912 | A4-80 Seal, washer Bonded seals, U 8,7 x 13 x 1 Bolt, socket head M8 x 25 | DIN 912 | A4-80 Wear sleeve Speedi sleeve SKF 99196 © Danfoss | March 2025 BC500736354623en-000102 | 71...
Page 72 M8 x 30 | DIN 912 | A4-80 Seal, washer Bonded seals, U 8,7 x 13 x 1 Bolt, socket head M8 x 25 | DIN 912 | A4-80 Wear sleeve Speedi sleeve SKF 99196 © 72 | Danfoss | March 2025 BC500736354623en-000102...
Page 73 Quantity Part Type Order (pcs) number EM-PMI375-T200/T500/T800/T1100-CONNECTION-BOX-COVER-KIT 11279089 Connection box cover plate (includes extruded sealant) Bolt, socket head M6 x 16 | ISO 7380 | A4-70 Sticker, EM-PMI Sticker, Warning High Voltage © Danfoss | March 2025 BC500736354623en-000102 | 73...
Page 74 User Guide EM-PMI375-690V Aftersales EM-PMI375 Cable gland kit Quantity Part Type Order (pcs) number EM-PMI375-CABLE-GLAND-KIT 11279473 Cable gland (power connections) M25 x 1,5 BG225MSTRI PFLITSCH © 74 | Danfoss | March 2025 BC500736354623en-000102...
Page 75: Disposal
User Guide EM-PMI375-690V Disposal Dispose of the electric machine and any of its parts by appropriate means in accordance with local laws and regulations. © Danfoss | March 2025 BC500736354623en-000102 | 75...
Page 76: Storage, Installation And Maintenance Checklists
15 Nm (to the bus bar) ☐ ☐ ☐ The phase connections order is correct (U, V, W -> L1, L2, ☐ ☐ ☐ Connection box cover bolts 4 Nm tightening torque © 76 | Danfoss | March 2025 BC500736354623en-000102...
Page 77 N.A = Procedure not applicable PASS = Procedure passed FAIL = Procedure failed Electric machine weekly maintenance checklist PASS FAIL General construction ☐ ☐ ☐ Noise or vibration during operation in general Cooling system © Danfoss | March 2025 BC500736354623en-000102 | 77...
Page 78 Continuous insulation monitoring. (It is recommended to use continuous insulation monitoring for the whole system where electric machine is used.) ☐ ☐ ☐ Encoder mounting Cooling system ☐ ☐ ☐ Functioning of the cooling system in general ☐ ☐ ☐ Tightness of the ventilation plug © 78 | Danfoss | March 2025 BC500736354623en-000102...
Page 79 15 Nm torque (to the box) ☐ ☐ ☐ Cable lug tightening torque 15 Nm (to the bus bar) ☐ ☐ ☐ Connection box cover bolts 4 Nm tightening torque Cooling system © Danfoss | March 2025 BC500736354623en-000102 | 79...
Page 80 Sealing of the screws may break. For cleaning instructions, refer to Chapter on page 62. Cleaning Used service parts Part description Part type Quantity Item (order) number © 80 | Danfoss | March 2025 BC500736354623en-000102...
Page 81 (vibration free) Storage temperature and humidity as specified Electric machine type and serial number is correct Electric machine supported correctly Corrosion protection of non-painted surfaces (for example shaft-end and grounding points) © Danfoss | March 2025 BC500736354623en-000102 | 81...
Page 82 EM-PMI375-690V Storage, installation and maintenance checklists Storage checklist (continued) Procedure Date Date Date Date Date Insulation resistance (test insulation resistance every three months in storage) Shaft rotated as specified (10 rotations monthly) © 82 | Danfoss | March 2025 BC500736354623en-000102...
Page 83 Phone: +86 21 2080 6201 Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without subsequent changes being necessary in specifications already agreed.

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