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Summary of Contents for SEW-Eurodrive PxG CM3G Series
- Page 1 *31974732_1224* Drive Technology \ Drive Automation \ System Integration \ Services Operating Instructions ® CM3G Series Precision Planetary Gearmotors ® integrated Edition 12/2024 31974732/EN...
- Page 2 SEW-EURODRIVE—Driving the world...
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Page 3: Table Of Contents
Table of Contents Table of Contents General information ........................ 5 About this documentation .................... 5 Other applicable documentation .................. 5 Structure of the safety notes ................... 5 Decimal separator in numerical values ................ 7 Rights to claim under limited warranty ................ 7 Recycling, reprocessing, reuse.................. 7 Product names and trademarks.................. 7 Copyright notice ...................... 7 Safety notes .......................... 8 Preliminary information .................... 8... - Page 4 Table of Contents Startup .......................... 47 Measuring the surface temperature ................ 47 Service ............................. 48 Gearmotor malfunctions.................... 48 Brake malfunctions ....................... 50 Encoder malfunctions .................... 50 SEW-EURODRIVE service................... 51 Shutdown ........................ 51 Storage ......................... 51 Startup after storage ..................... 52 Waste disposal...................... 53 Inspection/maintenance ...................... 54 Before you start...................... 54 Inspection and maintenance intervals of the gearmotor .......... 55 Lubricants ........................ 56...
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Page 5: General Information
General information About this documentation General information About this documentation The documentation at hand is the original. This documentation is an integral part of the product. The documentation is intended for all employees who perform work on the product. Make sure this documentation is accessible and legible. Ensure that persons respon- sible for the systems and their operation as well as persons who work on the product independently have read through the documentation carefully and understood it. - Page 6 General information Structure of the safety notes 1.3.2 Structure of section-related safety notes Section-related safety notes do not apply to a specific action but to several actions pertaining to one subject. The hazard symbols used either indicate a general hazard or a specific hazard.
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Page 7: Decimal Separator In Numerical Values
General information Decimal separator in numerical values Decimal separator in numerical values In this document, a period is used to indicate the decimal separator. Example: 30.5 kg Rights to claim under limited warranty Read the information in this documentation. This is essential for fault-free operation and fulfillment of any rights to claim under limited warranty. -
Page 8: Safety Notes
Safety notes Preliminary information Safety notes Preliminary information The following general safety notes serve the purpose of preventing injury to persons and damage to property. They primarily apply to the use of products described in this documentation. If you use additional components, also observe the relevant warning and safety notes. -
Page 9: Target Group
Safety notes Target group Target group Specialist for me- Any mechanical work may be performed only by adequately qualified specialists. Spe- chanical work cialists in the context of this documentation are persons who are familiar with the design, mechanical installation, troubleshooting, and maintenance of the product, and who possess the following qualifications: •... -
Page 10: Functional Safety Technology
Safety notes Functional safety technology 2.4.1 Restrictions of use The following applications are prohibited unless the device is explicitly designed for such use: • Use in potentially explosive areas. • Use in areas exposed to harmful oils, acids, gases, vapors, dust, and radiation. For installation altitudes over 1000 ... - Page 11 Safety notes Transportation/storage 38112726155 • Note the hazard from suspended loads. Do not stand under suspended loads. Se- cure the area where suspended loads can fall down. Secure loads using suitable holding fixtures (e.g. belts) before lifting them. • Sudden impacts, e.g. due to falling or sudden lowering of the product can cause damages to the product.
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Page 12: Creating A Safe Working Environment
Safety notes Creating a safe working environment Creating a safe working environment Before you work on the product, ensure a safe working environment. Observe the fol- lowing basic safety notes: 2.7.1 Performing work on the product safely Defective or damaged product Never install defective or damaged products. - Page 13 Safety notes Creating a safe working environment Missing protective equipment To avoid injuries, wear the appropriate protective equipment during all work on the product: • Wear safety gloves. • Wear safety shoes. • Wear protective goggles. 2.7.2 Performing electrical work safely Observe the following information to perform electrical work safely: Electrical work may only be performed by an electrically skilled person or an electron- ically instructed person under the supervision of an electrically skilled person.
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Page 14: Installation/Assembly
Safety notes Installation/assembly Dangerous voltage due to charged capacitors Voltage from charged capacitors can still be present in live components or power con- nections after disconnecting from the supply voltage. Observe the following informa- tion: • Observe the following waiting period after disconnecting the supply voltage and before performing any electrical work: 10 minutes. -
Page 15: Startup/Operation
Safety notes Startup/operation 2.9.1 Electrical connection The connection must be a permanently secure electrical connection (no protruding wire ends). Use the corresponding cable end equipment. Establish a safe protective earth connection. When the motor is connected, the distances to non-insulated and live parts must not be shorter than the minimum values according to IEC 60664 and to national regulations. -
Page 16: Device Structure
Device structure Basic structure Device structure Basic structure ® The PxG integrated planetary gearmotor consists of a planetary gear unit and a syn- chronous motor with 1 or 2 plug connectors. The gear units are single- or multi-stage gear units with low backlash. They can be used in all mounting positions. -
Page 17: Nameplate And Type Designation
Device structure Nameplate and type designation Nameplate and type designation 3.3.1 Nameplate on the gearmotor The following figure shows an example of a nameplate: Digital Services BMV5 / DI0E00 / 3~ IEC 60034 Usys P5BGM42-0016/N/S/0 CM3G71M-30L-E/BKB/PK/AK0H/SB1 kg 13.8 / i 16 Th.Kl. - Page 18 Device structure Nameplate and type designation Information [18] • Standstill current [19] • Nominal braking torque [20] • Brake control ® • Type code of the MOVILINK DDI interface • 3-phase supply [21] • Thermal class [22] • Brake voltage [23] •...
- Page 19 Device structure Nameplate and type designation 3.3.2 Warning notes on the planetary gearmotor Observe the warning notes specified on the planetary gearmotor. The following warn- ing notes can be found on the planetary gearmotor: Safety note Meaning Do not unplug the plug connector while it is energized. For planetary gearmotors with BKB brake: –...
- Page 20 Device structure Nameplate and type designation 3.3.3 Type designation P5BGM42-0016/N/S/0 CM3G71M-30A-E/BKB/PK/AK0H/SB1 Gear unit type Performance class Shaft design Gear unit design Gear unit size Number of stages 0016 Gear ratio Rotational clearance Lubricant Customer-specific CM3G Motor series Motor size Motor length Speed class System voltage Shaft design...
- Page 21 Device structure Nameplate and type designation 3.3.4 Type designation of the mechanical attachments The following table shows the type designation of the mechanical attachments to the planetary gearmotor: Designation Option /BKB Permanent-magnet holding brake 3.3.5 Type designation of the temperature sensor The following table shows the type designation of the temperature sensor: Designation Option...
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Page 22: Mechanical Installation
Mechanical installation Before you start Mechanical installation Before you start WARNING Magnetic fields can have an impact on the function of pacemakers and other active medical implants. Health risk. ü The product has permanent magnets that generate a magnetic field, even when no current is supplied. -
Page 23: Required Tools And Aids
Mechanical installation Required tools and aids • Avoid condensation due to cold air. Condensed water in the gear unit can cause damage. • Ensure that the cooling air supply to the gearmotor is unobstructed. • Make sure that no warm exhaust air from other devices is drawn in. •... -
Page 24: Mounting The Gearmotor To The Machine
Mechanical installation Mounting the gearmotor to the machine • Check the required degree of protection. • To prevent additional heat from entering the product due to direct sunlight, install a corresponding protection device, such as a cover or canopy. The protection device must not cause heat build-up. Mounting the gearmotor to the machine 4.5.1 Requirements for mounting to the machine... - Page 25 Mechanical installation Mounting the gearmotor to the machine 4.5.2 Mounting on the output side Mount the gearmotor to the machine as depicted in the following image: 38112718859 Output design flange block shaft [1] Customer's construction with threaded bores or through bores [2] Mounting bores [3] Centering collar at the output end [4] Gear unit housing...
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Page 26: Mounting The Output Elements On The Solid Shaft
Mechanical installation Mounting the output elements on the solid shaft 4.5.3 Screw sizes and tightening torques for flange mounting The following table shows the screw sizes and tightening torques of the gearmotor re- taining screws. Type designa- Size Mounting bore Screw Tightening tion... - Page 27 Mechanical installation Mounting the output elements on the solid shaft 4.6.2 Mounting the output elements on the smooth solid shaft Note the following points during installation: • Use a mounting device for installing input and output elements if possible. Use the centering bore and the thread on the shaft end for positioning.
- Page 28 Mechanical installation Mounting the output elements on the solid shaft 4.6.3 Mounting the output elements on the solid shaft with key or splining Note the following points during installation: • Use a mounting device for installing input and output elements if possible. Use the centering bore and the thread on the shaft end for positioning.
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Page 29: Mounting The Output Elements To The Flange Block Shaft
Mechanical installation Mounting the output elements to the flange block shaft Mounting the output elements to the flange block shaft Mount the output elements to the flange block shaft. 1. Clean and degrease the flange surfaces. 2. Evenly tighten the retaining screws in several turns with increasing torque using a suitable tool (→ 2 23). -
Page 30: Electrical Installation
Electrical installation Before you start Electrical installation Before you start WARNING Magnetic fields can have an impact on the function of pacemakers and other active medical implants. Health risk. ü The product has permanent magnets that generate a magnetic field, even when no current is supplied. -
Page 31: Brake Control With Functional Control Input
Electrical installation Brake control with functional control input Brake control with functional control input In addition to the voltage supply, the optional brake controls of the BMV series offer a control input for a DC 24 V signal with which the brakes can be switched via a PLC. It is a purely functional input that is not "functionally safe"... -
Page 32: Connecting The Motor And The Encoder System Via Plug Connector
Electrical installation Connecting the motor and the encoder system via plug connector Connecting the motor and the encoder system via plug connector As standard, the gearmotors are supplied with the SM./SB. plug connector system in two-cable technology. In the basic design, SEW‑EURODRIVE delivers the gearmotors with a plug connector on the motor side and without a mating plug connector. - Page 33 Electrical installation Connecting the motor and the encoder system via plug connector 5.4.2 Type designation mating connector The following table shows the type designation of the mating connector: Example: SM12 S Plug connectors M Motor B Brakemotor H Hybrid version for an encoderless motor E Motor with encoder with EnDat 2.2 interface 1 Plug connector size 1 (1.5 – 4 mm Cross section...
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Page 34: Connecting The Two-Cable Technology
Electrical installation Connecting the two-cable technology Connecting the two-cable technology 5.5.1 Plug connector positions for two-cable technology (SM1, SB1) The SM1, SB1 right-angle plug connectors may be aligned in any desired position. The following figure shows right-angle plug connectors with different alignment: The position "radial"... - Page 35 Electrical installation Connecting the two-cable technology 5.5.3 Connecting the SM1/SB1 power plug connectors (M23) The connection diagram of the plug connector depicts the contact end of the connec- tions. Function ® Motor connection for motors with resolver/HIPERFACE interface Connection type M23, TE Connectivity - Intercontec Products, series 923, SEW insert, SpeedTec equipment, coding ring: without, male Pin assignment...
- Page 36 The connection diagram of the plug connector depicts the contact end of the connec- tions. Function Signal connection Connection type M23, TE Connectivity – Intercontec Products, series 923, SEW-EURODRIVE insert, coding ring: without, male Pin assignment Motor assignment Con- Signal...
- Page 37 Electrical installation Connecting the two-cable technology Wiring diagram for signal plug connectors RH1M resolver INFORMATION The connection diagram and signal logics of the RH1M resolver are identical for CM3G.., CM3C.. and CMP.. motors. Due to the installation design, the color coding of the cores might vary.
- Page 38 Electrical installation Connecting the two-cable technology 5.5.5 Wiring diagrams of the brake control with BKB brake BMV brake control DC 24 V DC 24 V 9007212241295115 Connection 1, 2 Power supply Connection 3, 4 Signal (inverter) External switching device with BS protective circuit 24 V 12986690059 ®...
- Page 39 The brake must be protected against overvoltages in the following cases, e.g. by means of a varistor protection circuit: • for operation with third-party inverters, • for brakes that are not supplied directly from inverters from SEW-EURODRIVE. ® With MOVIDRIVE modular 24 V BGND DBØØ...
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Page 40: Connecting The Single-Cable Technology
Electrical installation Connecting the single-cable technology Connecting the single-cable technology Using an inverter with suitable control mode is mandatory for operating a PxGM..CM3G.. gearmotors in encoderless design. The following control modes by SEW‑EURODRIVE are available: ® • ELSM (Encoderless Synchronous Machine) control mode •... - Page 41 Electrical installation Connecting the single-cable technology 5.6.3 Connecting the SE1 power plug connectors (M23) The connection diagram of the plug connector depicts the contact end of the connec- tions. Function Hybrid motor and signal connection for motors with EnDat2.2 interface Connection type M23, male, male thread, TE Connectivity –...
- Page 42 The connection diagram of the plug connector depicts the contact end of the connec- tions. Function Motor connection for motors in encoderless design Connection type M23, male, male thread, TE Connectivity – Intercontec products, series 723, SEW-EURODRIVE insert, SpeedTec equipment, coding ring: without, protected against contact Pin assignment 34609095051 Motor assignment...
- Page 43 Electrical installation Connecting the single-cable technology Wiring diagram for SH1 without brake / with BKB brake BK (3) 15 -/ BK (1) 13 +/ BK (W) BK (V) GNYE BK (U) GNYE 34644869003 [1] BKB brake (optional) 5.6.5 Wiring diagrams of the brake control with BKB brake In every application, the BKB holding brake can be controlled via the BMV brake con- trol or a customer relay with varistor overvoltage protection.
- Page 44 Electrical installation Connecting the single-cable technology Direct 24 V brake supply with non-SEW inverters If the brake is not controlled via BMV brake control unit, a contactor must be used that is suitable for switching inductive DC loads. In this case a varistor circuit in parallel to the brake coil is required as overvoltage protection and EMC interference suppression of the 24 V supply.
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Page 45: Options
Electrical installation Options Options 5.7.1 BKB brake The BKB brake is a permanent magnet holding brake with emergency stop function. For further information, refer to chapter "Technical data of the BKB brake" (→ 2 59). 5.7.2 Pt1000 thermal motor protection Type designation Description Thermal motor protection in combination with the corresponding evaluation electronics prevents the motor from overheating and consequently from being damaged. -
Page 46: Startup
Startup Before you start Startup Before you start WARNING Magnetic fields can have an impact on the function of pacemakers and other active medical implants. Health risk. ü The product has permanent magnets that generate a magnetic field, even when no current is supplied. -
Page 47: Measuring The Surface Temperature
Startup Startup • Do not acknowledge a motor protection fault several times at the frequency in- verter. • With brakemotors, check for proper function of the brakes. • Operate the BKB.. brake only as holding brake. • The brake may only be applied when the speed is ≤ 20 min . -
Page 48: Service
Service Gearmotor malfunctions Service Gearmotor malfunctions 7.1.1 Gear unit malfunctions Fault Possible cause Measure Gearmotor does not Supply cable interrupted. Check connections and correct, if neces- start sary. Thermal motor protection tripped. Check the thermal motor protection for cor- rect setting and correct fault, if necessary. Inverter defective, overloaded, con- Check inverter, check wiring. - Page 49 Service Gearmotor malfunctions 7.1.2 Motor malfunctions Fault Possible cause Measure Increased operating • Limited air supply • Ensure unrestricted air supply and/or contact SEW‑EURODRIVE. temperature (> 90 °C) • Speed/torque is too high • Check the configuration. • Contact SEW‑EURODRIVE. • The motor heats up the gear unit • Check the configuration.
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Page 50: Brake Malfunctions
Service Brake malfunctions Brake malfunctions 7.2.1 BKB brake Fault Possible cause Measure Brake does not release Brake connected incorrectly. Check the connection of the brake. Incorrect voltage at brake control Check voltage at the motor connection: unit, e.g. voltage drop in the supply Ensure correct connection voltage;... -
Page 51: Sew-Eurodrive Service
Service SEW-EURODRIVE service SEW-EURODRIVE service If you are unable to rectify a fault, contact SEW‑EURODRIVE Service. For the ad- dresses, refer to www.sew‑eurodrive.com. When contacting SEW‑EURODRIVE Service, always specify the following information so that our service personnel can assist you more effectively: •... -
Page 52: Startup After Storage
INFORMATION If the insulation resistance is too low, the gearmotor has absorbed moisture. SEW-EURODRIVE recommends sending the gearmotor to SEW‑EURODRIVE Service with a fault description. The following figure shows the minimum insulation resistance depending on the tem- perature. -
Page 53: Waste Disposal
Service Waste disposal Waste disposal Dispose of the product and all parts separately in accordance with their material struc- ture and the national regulations. Put the product through a recycling process or con- tact a specialist waste disposal company. If possible, divide the product into the follow- ing categories: •... -
Page 54: Inspection/Maintenance
Inspection/maintenance Before you start Inspection/maintenance Before you start WARNING Magnetic fields can have an impact on the function of pacemakers and other active medical implants. Health risk. ü The product has permanent magnets that generate a magnetic field, even when no current is supplied. -
Page 55: Inspection And Maintenance Intervals Of The Gearmotor
Inspection/maintenance Inspection and maintenance intervals of the gearmotor Inspection and maintenance intervals of the gearmotor Wear times are influenced by many factors and can be short. The required intervals for inspection and maintenance must be individually calculated by the system manu- facturer in accordance with the project planning documents. -
Page 56: Lubricants
Inspection/maintenance Lubricants Unit/part of unit Time interval Required steps Surfaces of the • Depending on external factors • Clean gearmotor surfaces. gearmotor • Clean cooling air ducts. Cooling air ducts 1) The periods of wear are affected by many factors and may be shorter than the recommendation above. Lubricants The gear unit is lubricated for life and filled with the following lubricant from SEW‑EURODRIVE at the factory:... -
Page 57: Cleaning
Inspection/maintenance Cleaning Cleaning Dirt, dust or chips on the drive increase the operating temperature as the optimum heat dissipation of the motor is no longer possible. Clean the gearmotor regularly, depending on the operating and ambient conditions. During cleaning work, protect the bearing and the sealing rings against contact with solvents. -
Page 58: Technical Data
Technical data Boundary conditions Technical data Boundary conditions ® The technical data of the PxG integrated planetary gearmotors apply under the framework boundary conditions: • System voltage AC 400 V, DC 48 V • Pulse width modulation frequency (PWM frequency) at least 8 kHz •... -
Page 59: Technical Data Of The Bkb Brake
Technical data Technical data of the BKB brake Technical data of the BKB brake The BKB brake is essentially used as a holding brake. However, it is also suitable for emergency braking. The following tables show the technical data of the BKB brakes. The BKB brakes op- erate with a fixed braking torque per brake size. -
Page 60: Technical Data Of The /Pk Temperature Sensor
Technical data Technical data of the /PK temperature sensor Technical data of the /PK temperature sensor The /PK temperature sensor continuously detects the motor temperature. Connection Red – black Total resistance 1050 Ω < R < 1150 Ω at 20 – 25 °C Test current < 3 mA The temperature sensor is unipolar which means that interchanging the incoming cables does not change the measurement result. -
Page 61: Mounting Positions
Technical data Mounting positions Mounting positions Due to their design, the gear units are completely closed and do not have a ventilation valve. They can be used in any mounting position M1 – M6 without having to make adjustments to the gear unit. The following figure shows the mounting positions M1 – M6 of SEW‑EURODRIVE. -
Page 62: Contacting Sew-Eurodrive
Contacting SEW-EURODRIVE Contacting SEW-EURODRIVE You can find the worldwide contact data and locations on the SEW‑EURODRIVE website via the following link or the QR code shown below. https://www.sew-eurodrive.de/contacts-worldwide ® Operating Instructions – PxG integrated... - Page 68 SEW-EURODRIVE—Driving the world SEW-EURODRIVE GmbH & Co KG Ernst-Blickle-Str. 42 76646 BRUCHSAL GERMANY Tel. +49 7251 75-0 Fax +49 7251 75-1970 sew@sew-eurodrive.com www.sew-eurodrive.com...
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