Related Manuals for SEW-Eurodrive ZN Series
Summary of Contents for SEW-Eurodrive ZN Series
- Page 1 *31547206_0824* Drive Technology \ Drive Automation \ System Integration \ Services Assembly and Operating Instructions ZN.. Cycloidal Servo Gear Units Edition 08/2024 31547206/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 Validity of the documentation.................. 5 Other applicable documentation .................. 5 Additional documentation.................... 5 Structure of the safety notes ................... 5 1.5.1 Meaning of signal words ................. 5 1.5.2 Structure of section-related safety notes ............ 6 1.5.3 Meaning of the hazard symbols.............. 6 1.5.4... - Page 4 Inspection and maintenance work ................ 47 Inspection/maintenance intervals.................. 48 Lubricants ........................ 48 Mounting positions ......................... 49 Designation of the mounting positions ................ 49 Malfunctions .......................... 50 Gear unit malfunctions .................... 50 Service .......................... 51 Waste disposal ........................ 52 Contacting SEW-EURODRIVE.................... 53 Index ............................ 54 Assembly and Operating Instructions – ZN.. Cycloidal Servo Gear Units...
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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: Structure Of Section-Related Safety Notes
General information Decimal separator in numerical values 1.5.2 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. -
Page 7: Recycling, Reprocessing, Reuse
General information Recycling, reprocessing, reuse Recycling, reprocessing, reuse SEW‑EURODRIVE GmbH & Co KG strives to use as few new natural resources as possible in the production of its products. An important aspect of this is the circular economy with the recycling of materials as well as the inspection and/or reprocessing of returned components and their reuse in new products. -
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: Designated Use
Safety notes Designated use Specialist for elec- Any electrotechnical work may be performed only by electrically skilled persons with a trotechnical work suitable education. Electrically skilled persons in the context of this documentation are persons who are familiar with electrical installation, startup, troubleshooting, and main- tenance of the product, and who possess the following qualifications: •... -
Page 10: 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 note: 2.5.1 Performing work on the product safely Defective or dam- Never install defective or damaged products. -
Page 11: Performing Electrical Work Safely
Safety notes Transportation/storage Toxic vapors due Fluorocarbon rubber is very stable and harmless under normal operating conditions to heating of and temperatures < 200 °C. However, if fluorocarbon rubber is heated to more than fluorocarbon rub- 300 °C, e.g. by fire or the flame of a cutting torch, harmful gases, vapors and residues can form. -
Page 12: Installation/Assembly
Safety notes Installation/assembly 46778068235 • 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. -
Page 13: Cleaning
Safety notes Cleaning Cleaning During cleaning work, protect the bearing and the sealing rings against contact with solvents. Solvents can damage the bearing and the sealing rings. Only use commercial cleaning agents that are grease-dissolving but non-aggressive to prevent corrosion. Do not use compressed air for cleaning the unit, but use a vacuum cleaner. -
Page 14: Gear Unit Design
Gear unit design Basic gear unit structure Gear unit design Basic gear unit structure The following figures are merely examples. Discrepancies may occur depending on the gear unit size and design. ZN.. cycloidal servo gearmotor with MD.. adapter and CM3C.. servomotor: [100] [114] [200]... - Page 15 Gear unit design Basic gear unit structure ZN.. cycloidal servo gearmotor with CMP.. servomotor: [114] [316] [100] 45013637515 [100] Housing of the cycloidal gear unit [114] Intermediate flange [316] CMP.. servomotor Assembly and Operating Instructions – ZN.. Cycloidal Servo Gear Units...
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Page 16: Nameplate/Type Designation
Gear unit design Nameplate/type designation Nameplate/type designation 3.2.1 Nameplates of ZN.. cycloidal servo gear units The following figures show examples of nameplates for a ZN.. cycloidal servo gear unit: Nameplates of ZN.. cycloidal servo gear units with HN.. adapter The nameplate and product label of the ZN.. cycloidal servo gear unit are always at- tached to the gear unit. - Page 17 Gear unit design Nameplate/type designation Product label SEW-EURODRIVE 01.0123456789.0001.24 Digital Services 10690441 45036029912790283 Product label with QR code. The QR code on the product can be scanned. You will be redirected to the Digital Services of SEW‑EURODRIVE. There, you have access to product-specific data, documents, and further services.
- Page 18 Gear unit design Nameplate/type designation Line Information • Standstill current • Voltage at the open terminals of the motor at rated speed • Mass • Maximum permitted current • Permitted ambient temperature range • Thermal class • System voltage, voltage of the supplying inverter •...
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Page 19: Marks
Gear unit design Nameplate/type designation 3.2.2 Marks The following table shows an example of the markings on the nameplate. CE marking to state compliance with European Directives, (see EU declar- ation of conformity or EU declaration of incorporation). FS logo with 2-digit number for identification of installed functional safety motor options. -
Page 20: Designs And Options
Gear unit design Nameplate/type designation 3.2.4 Designs and options Designs and options of Z.. cycloidal servo gear units Gear unit type Designation Cycloidal gear unit Gear unit series Designation N series E series C series P series Shaft design Designation Flange block shaft Flange block shaft with hollow shaft Gear unit design/fastening type... - Page 21 Gear unit design Nameplate/type designation Designs and options of HN.. adapters Adapter type H. Designation Description Smooth shaft Adapter design Designation Description Rigid shaft, clamp-force-optimized Size of adapter shaft and flange Designation Description Adapter shaft, without flange Geometry variant 01 Geometry variant 02 Other geometry variants Special dimensions...
- Page 22 Gear unit design Nameplate/type designation Designs and options of adapter type MD.. Adapter type Designation Description Compact mounting CM3C.. motor size Designation Description CM3C.. size 63 CM3C.. size 71 CM3C.. size 80 CM3C.. size 100 Version Designation Description Version A Assembly and Operating Instructions –...
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Page 23: Mechanical Installation
Mechanical installation Before you start Mechanical installation Before you start CAUTION The surface temperatures on the drive can be very high during operation. Risk of burns. • Make sure that hot surfaces cannot be touched unintentionally or during normal operation. Install covers or warning signs according to regulations. •... -
Page 24: Installation Tolerances
Mechanical installation Operation in damp locations or outdoors • Compensation elements (e.g. shims, spacer rings, etc.), if necessary • Fixing devices for input and output elements • Set of Allen keys ® • Sealant (e.g. LOCTITE 573 or 574) ® •... -
Page 25: Motor Mounting To Hn.. Adapters
Mechanical installation Motor mounting to an adapter NOTICE Damage to the adapter due to ingress of moisture or dirt (e.g. dust) during the at- tachment of a motor or an input component. Damage to the adapter. • If the motor being attached or the input component has openings or holes with access to the interior of the adapter, seal them so that they are dustproof and li- quidproof. - Page 26 Mechanical installation Motor mounting to an adapter The following figure shows an example of mounting a motor to an HN.. adapter: [206] [202] [302] [208] [205] [204] [300] [203] [301] [207] [201] [209] [201] Adapter flange [202] Adapter shaft [203] Flange centering [204] Flange contact surface [205] Connection bores [206] Clamping ring...
- Page 27 Mechanical installation Motor mounting to an adapter WARNING! Risk of injury if the drive starts up unintentionally. Severe or fatal injuries. Disconnect the drive from the power supply before starting work. Prevent the drive from starting up unintentionally, for example by locking the key switch or removing the fuses from the current supply.
- Page 28 Mechanical installation Motor mounting to an adapter [202] [208] [206] [202] Adapter shaft [206] Clamping ring [208] Coupling sleeve (if available) 8. For motors with keyway: SEW‑EURODRIVE recommends to insert a half keyway into the keyway to compensate imbalance. The half keyway must not protrude out of the groove in the motor shaft extension.
- Page 29 Mechanical installation Motor mounting to an adapter [208] [202] [205] [204] [301] [202] Adapter shaft [204] Flange contact surface [205] Connection bores [208] Coupling sleeve (if available) [301] Motor shaft 10. No gap between the flange contact surfaces: 0 mm ®...
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Page 30: Motor Mounting To Md.. Adapters
Mechanical installation Motor mounting to an adapter Strength class of the screws 10.9 Minimum screw-in depth 1.5 × screw Ø 1.8 × screw Ø 1) Strength class according to the specifications of the motor manufacturer. 12. Insert the connection screws [302] into the tapped holes of the adapter flange ... - Page 31 Mechanical installation Motor mounting to an adapter On CM3C.. servomotors, a label is attached that indicates that CM3C.. servomotors with MD.. adapter must never be operated without a gear unit. The following components must be replaced when mounting a motor again. These components are part of the delivery of the SEW‑EURODRIVE component to be mounted.
- Page 32 Mechanical installation Motor mounting to an adapter ü Important information! If possible, mount the motor in a vertical position. As- sembly is easier if the gear unit is at the upper position. You may install the com- ponents in another mounting position only if the application or space circum- stances do not permit the standard position.
- Page 33 Mechanical installation Motor mounting to an adapter 8. Apply lubricant (Grease HL2 H1 E1) [315] to the positive interface of the motor shaft [301] and the adapter shaft hub [211] to prevent fretting corrosion. [312] [211] [313] [301] [311] [315] [211] Adapter shaft hub [301] Motor shaft [311] Equalizing ring package...
- Page 34 Mechanical installation Motor mounting to an adapter Size Connection screw Tightening torque CM3C063 12 Nm CM3C071 12 Nm CM3C080 28 Nm CM3C100 56 Nm All values are calculated according to VDI 2230 and based on the following conditions: The friction coefficient for threads of strength class 8.8 is μ = 0.14 (to VDI 235‑101). The level of utilization is 90% of the elastic limit, and signal-generating torque wrenches or motor torque wrenches with dynamic torque measurement are used as tools.
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Page 35: Installation In A Machine
Mechanical installation Installation in a machine Installation in a machine 4.7.1 Before you start • The gearmotor may only be operated in the mounting positions specified on the nameplate. If you want to install the drive in a deviating mounting position, contact SEW‑EURODRIVE. - Page 36 Mechanical installation Installation in a machine ü WARNING! Risk of injury if the drive starts up unintentionally. Severe or fatal injuries. Discon- nect the drive from the power supply before you start work. Prevent the drive from starting up unintentionally, for example by locking the key switch or removing the fuses from the current supply.
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Page 37: Flange Block Shaft Assembly
Mechanical installation Installation in a machine 4.7.3 Flange block shaft assembly The following figure shows the assembly instructions of a shaft connection in combina- tion with an outer centering ring using the example of a flange block shaft for a cyc- loidal gear unit. -
Page 38: Tightening Torques For Screw Connections On The Gear Unit Housing And Flange Block
Mechanical installation Installation in a machine 4.7.4 Tightening torques for screw connections on the gear unit housing and flange block The following table lists the recommended tightening torques for screw connections to mounting elements and output elements. Screw /nut Strength class Tightening torque in Nm 9.01 ± 0.49 15.6 ± 0.78... -
Page 39: Motor Removal
Mechanical installation Motor removal Motor removal 4.8.1 Removing the motor with direct motor mounting If the motor and gear unit are connected directly without an adapter (direct mounting), do not remove the gear unit from the motor yourself. Contact SEW‑EURODRIVE. 4.8.2 Removing the motor with adapter Disassembly of motor and adapter is permitted. - Page 40 Mechanical installation Maximum permitted motor weight for mounting to an HN.. adapter Maximum permitted motor weight Adapter shaft Distance x in relation to x Gear unit ZNBF71 19 – 28 ZNBF71 32 – 38 ZNBF81 19 – 28 ZNBF81 32 – 38 ZNBF91 24 – 38 ZNBF91 ZNBF101 24 – 38 ZNBF101 ZNBF111 24 – 38 ZNBF111...
- Page 41 Mechanical installation Replacing the adapter flange with HN.. adapters 4.10 Replacing the adapter flange with HN.. adapters 4.10.1 Information Note the following information for replacing the adapter: • Due to precision and service life, it is recommended to operate a ZN.. cycloidal gear unit only together with a suitable adapter flange of the HN..
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Page 42: Replacing The Adapter Flange With Hn.. Adapters
Mechanical installation Replacing the adapter flange with HN.. adapters 4.10.2 Removing the adapter flange CAUTION Damage to the gear unit caused by removing the adapter housing. Gear unit damage. • Removing the adapter housing and loosening the retaining screws is not permit- ted. -
Page 43: Mounting The Adapter Flange
Mechanical installation Replacing the adapter flange with HN.. adapters 4.10.3 Mounting the adapter flange [212] [200] [209] [201 [210] 45899951243 [200] Adapter housing [201] Adapter flange [209] Mounting bore with screw plug [210] Adapter flange retaining screw [212] Retaining screw Do the following to mount the new adapter flange: 1. - Page 44 Mechanical installation Replacing the adapter flange with HN.. adapters 5. Evenly tighten the retaining screws [210] in several turns in diametrically opposite sequence with increasing torque using a suitable tool. Suitable tools are signal- generating torque wrenches or motorized torque wrenches with dynamic torque detection.
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Page 45: Startup
Startup General information Startup General information WARNING Uncontrolled behavior in test mode. Severe or fatal injuries. • Secure the keys for the test runs without output elements. • Activate all monitoring and protection devices even for test runs. NOTICE Gear unit damage due to overheating of the lubricant. Gear unit damage. -
Page 46: Inspection/Maintenance
Inspection/maintenance General information Inspection/maintenance SEW‑EURODRIVE recommends having the SEW‑EURODRIVE Service carrying out maintenance work. This particularly applies to all steps that require power transmitting connections to be opened or loosened. If maintenance work is carried out independently, the responsibility and liability for the proper performance is passed to the operator. -
Page 47: Inspection And Maintenance Work
Inspection/maintenance Inspection and maintenance work CAUTION Risk of slipping and hazard for the environment due to spilled or leaked lubricant. Injuries and environmental hazard. • Absorb any leaked or spilled lubricant with a suitable binding agent. Dispose of the mixture in accordance with the regulations. NOTICE Damage to oil seal caused by cleaning the gear unit with a high pressure device. -
Page 48: Inspection/Maintenance Intervals
Inspection/maintenance Inspection/maintenance intervals Inspection/maintenance intervals Time interval Required steps • Visual inspection for external damage and leakage at the seals. • Check the tightening torque of the clamping screws for the clamping ring. For the tightening torque, refer to the following table "Motor mounting to HN.. -
Page 49: Mounting Positions
Mounting positions Designation of the mounting positions Mounting positions Designation of the mounting positions SEW‑EURODRIVE distinguishes between gear unit mounting positions M1 to M6. The following figure shows the mounting positions of a gearmotor. 9007212045308299 The gearmotor may only be operated in the mounting positions specified on the name- plate. -
Page 50: Malfunctions
Malfunctions Gear unit malfunctions Malfunctions Gear unit malfunctions Fault Possible cause Measure Unusual, even running • Meshing/grinding noise: Bearing • Contact SEW‑EURODRIVE. damage or strain on motor noises. mounting • Thumping noise: Irregularities in • Contact SEW‑EURODRIVE. the gearing • Incorrect controller setting •... -
Page 51: Service
Malfunctions Service Fault Possible cause Measure Increased operating • Limited air supply • Ensure unrestricted air supply and/or contact SEW‑EURODRIVE. temperature (> 60 °C) • Speed/torque is too high • Check the configuration. • Contact SEW‑EURODRIVE. • The motor heats up the gear unit • Check the configuration. -
Page 52: Waste Disposal
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 53: 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 Assembly and Operating Instructions – ZN.. Cycloidal Servo Gear Units... -
Page 54: Index
Index Index HN.. adapters............ 25 Adapter mounting .......... 30 Adapters Identification, nameplate ........ 19 HN.............. 25 Information Installation ............ 24 Designation in the documentation .... 5 Assembly Inner centering ............. 38 Motor mounting .......... 24 Inspection ............ 46 Safety notes ........... 12 Intervals ............ 48 Auxiliary means ........... - Page 55 Index Service .............. 51 Shaft connection, assembly instructions.... 37 Painting the gear unit .......... 24 Signal words in safety notes ........ 5 Product names ............ 7 Startup .............. 45 Protection devices .......... 12 Measuring the oil temperature ...... 45 Storage .............. 11 Surface temperature .......... 45 Removing the motor .......... 39 Direct mounting ..........
- Page 60 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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