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The information in this manual is subject to change without notice and should not be construed as a commitment by ABB. ABB assumes no responsibility for any errors that may appear in this manual. Except as may be expressly stated anywhere in this manual, nothing herein shall be construed as any kind of guarantee or warranty by ABB for losses, damages to persons or property, fitness for a specific purpose or the like.
• repair personnel. Prerequisites Maintenance/repair/installation personnel working with an ABB Robot must: • be trained by ABB and have the required knowledge of mechanical and electrical installation/repair/maintenance work. Organization of chapters The manual is organized in the following chapters: Chapter...
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• Safety chapter- Revised terminology: robot replaced with manipulator. • Safety chapter - Information not applicable to IRB 120 in WARNING - Safety risks during work with gearbox lubricants (oil or grease) on page 53 removed.
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Installation chapter - Lifting capacity of roundslings updated. See: Lifting the robot with roundslings on page • Installation chapter - New illustration showing IRB 120 added. See: Setting the system parameters for a suspended or tilted robot on page •...
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228. • Spare parts chapter - Illustration xx0900000544 updated. See Spare parts - Upper arm unit in Product manual, spare parts - IRB 120. This revision includes the following additions and/or changes: • A new block, about general illustrations, added in section...
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Updated timing belt tension for axis-3 motor and axis-5 motor This revision includes the following additions and/or changes: • Removed information about signal lamp from the manual since it is not a valid option for IRB 120. • Information about manual break release added to installation chapter. •...
This listing is based on the type of information in the documents, regardless of whether the products are standard or optional. All documents listed can be ordered from ABB on a DVD. The documents listed are valid for IRC5 robot systems.
Limitation of liability Any information given in this manual regarding safety must not be construed as a warranty by ABB that the industrial robot will not cause injury or damage even if all safety instructions are complied with. Related information...
ABB is not liable for damages caused by the use of non-original spare parts and special equipment. ABB is not liable for damages or injuries caused by unauthorized modifications to the robot system.
Unauthorized modifications of the originally delivered robot are prohibited. Without the consent of ABB it is forbidden to attach additional parts through welding, riveting, or drilling of new holes into the castings. The strength could be affected.
Safety on page 17 before performing any installation work. Note If the IRB 120 is connected to power, always make sure that the robot is connected to protective earth before starting any installation work! For more information see: • Product manual - IRC5...
It also contains information useful during later re-installation of the robot. Prerequisites for installation personnel Installation personnel working with an ABB product must: • be trained by ABB and have the required knowledge of mechanical and electrical installation/maintenance/repair work • conform to all national and local codes.
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Otherwise there is a risk that the robot stops or run with lower performance due to temperature dependent oil and grease viscosity. For robots with food grade lubrication, if environment temperature > 35ºC, contact ABB for further information.
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Lifting instructions Use this procedure to lift the robot in a safe way. Action Note CAUTION The IRB 120 robot weighs 25 kg. All lifting accessories used must be sized accordingly! CAUTION Attempting to lift the robot in any other pos-...
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Continued Brake release button at the front of IRC5 Compact controller The IRB 120 robot has no brake release button, instead use the brake release button on the IRC5 Compact controller. For other controller variants, the placing depends on the design of the cell.
All equipment and cables used on the robot, must be designed and fitted not to damage the robot and/or its parts. Note Never drill a hole in the robot without first consulting ABB! Maximum loads The table shows the maximum permitted loads for any extra equipment fitted in the holes intended for this purpose.
Any Clean Room parts that are replaced must be replaced with parts designed for use in Clean Room environments. Clean Room class 5 According to IPA test result, the robot IRB 120 is suitable for use in Clean Room environment when these requirements are fulfilled: •...
Safety on page 17 before performing any service work! Note If the IRB 120 is connected to power, always make sure that the IRB 120 is connected to protective earth before starting any maintenance work! For more information see: •...
3.2.1 Specification of maintenance intervals Introduction The intervals are specified in different ways depending on the type of maintenance activity to be carried out and the working conditions of the IRB 120: • Calendar time: specified in months regardless of whether the system is running or not.
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Continued Required spare parts Note The spare part numbers that are listed in the table can be out of date. See the latest revision of Product manual, spare parts - IRB 1200 on ABB Library. Spare part Article number Note...
Before starting any inspection, maintenance, or changing activities of lubrication, always contact the local ABB Service organization for more information. For ABB personnel: Always check ABB Library for the latest revision of the manual Technical reference manual - Lubrication in gearboxes, in order to always get the latest information of updates about lubrication in gearboxes.
General To secure high uptime it is important that the IRB 120 is cleaned regularly. The frequency of cleaning depends on the environment in which the manipulator works. Different cleaning methods are allowed depending on the type of protection of the IRB 120.
Make sure to read through the chapter Safety on page 17 before commencing any service work. Note If the IRB 120 is connected to power, always make sure that the IRB 120 is connected to earth before starting any repair work. For more information see: •...
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If the flange surfaces are defective, the parts may not be used because leakage could occur. Clean the surfaces properly in accordance with the recommendations of ABB. Distribute the sealing compound evenly over the surface, preferably with a brush. Tighten the screws evenly when fastening the flange joint.
Gearbox axis 2 is a part of motor axis 2 when ordered as a spare part. The procedure below describes the replacement of motor and gearbox axis 2 as one unit. For information how to replace gearbox axis 2, please contact ABB. CAUTION Always read the section "General procedures"...
155. Motor axis 6 is a part of the upper arm when ordered as a spare part. For more information how to replace motor axis 6, please contact ABB. Location of motor axis 6 Motor axis 6 is located as shown in the figure.
Overview Gearbox axis 3 is delivered as a part of the lower arm. For more information how to replace gearbox axis 3, please contact ABB. Location of gearbox axis 3 Gearbox axis 3 is located as shown in the figure.
Replacing the upper arm on page 155. For more information how to replace gearbox axis 5, please contact ABB. Location of gearbox axis 5 Gearbox axis 5 is located as shown in the figure. xx0900001041...
Replacing the upper arm on page 155. For more information how to replace gearbox axis 6, please contact ABB. Location of gearbox axis 6 Gearbox axis 6 is located as shown in the figure: xx0900000910...
Term Definition Calibration method A collective term for several methods that might be available for calibrating the ABB robot. Each method contains calibration routines. Synchronization position Known position of the complete robot where the angle of each axis can be checked against visual synchronization marks.
Brief description of calibration methods Axis Calibration method Axis Calibration is a standard calibration method for calibration of IRB 120 and is the most accurate method for the standard calibration. It is the recommended method in order to achieve proper performance.
The resolver values are changed If resolver values are changed, the robot must be recalibrated using the calibration methods supplied by ABB. Calibrate the robot carefully with standard calibration, according to information in this manual. The resolver values will change when parts affecting the calibration position are replaced on the robot, for example motors or parts of the transmission.
Introduction This section shows the position of the synchronization marks and the synchronization position for each axis. Synchronization marks, IRB 120 The illustrations show the synchronization marks on IRB 120. xx0900000574 Calibration mark axis 1 Calibration mark axis 2 Calibration mark axis 3...
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Unrestricted in the FlexPendant window. How to calibrate a suspended or wall mounted robot The IRB 120 is calibrated floor standing in factory, prior to shipping. To calibrate a suspended or wall mounted robot with the fine calibration routine, the robot must first be taken down and mounted standing on the floor.
The calibration tools used for Axis Calibration are designed to meet requirements for calibration performance and durability. WARNING Calibrating the robot with Axis Calibration requires special calibration tools from ABB. Using other pins in the calibration holes may cause severe damage to the robot and/or personnel. Equipment, etc. Article number...
UNBRAKO screws UNBRAKO is a special type of screw recommended by ABB for certain screw joints. It features special surface treatment (Gleitmo as described below) and is extremely resistant to fatigue.
All components exceeding 22 kg (50 lbs) are highlighted in this way. To avoid injury, ABB recommends the use of a lifting accessory when handling components with a weight exceeding 22 kg. A wide range of lifting accessories and devices are available for each manipulator model.
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