ABB IRB 6600 - 175/2.55 User Manual page 423

Section 1.2: Safety risks
1.2.1 Safety risks related to gripper
Ensure that a gripper is prevented from dropping a workpiece, if such is used.
1.2.2 Safety risks related to tools/workpieces
Safe handling It must be possible to turn off tools, such as milling cutters, etc., safely. Make sure that guards
remain closed until the cutters stop rotating.
It should be possible to release parts by manual operation (valves).
Safe design
Grippers/end effectors must be designed so that they retain workpieces in the event of a power
failure or a disturbance of the controller.
1.2.3 Safety risks related to pneumatic/hydraulic systems
General
Special safety regulations apply to pneumatic and hydraulic systems.
Residual energy
Safe design
1.2.4 Safety risks during operational disturbances
General
Qualified person-
nel
Extraordinary
If the working process is interrupted, extra care must be taken due to risks other than those
risks
associated with regular operation. Such an interruption may have to be rectified manually.
3HAC 16247-1
• Residual energy may be present in these systems so, after shutdown, particular care
must be taken.
• The pressure in pneumatic and hydraulic systems must be released before starting to
repair them.
• Gravity may cause any parts or objects held by these systems to drop.
• Dump valves should be used in case of emergency.
• Shot bolts should be used to prevent tools, etc., from falling due to gravity.
• The industrial robot is a flexible tool which can be used in many different industrial
applications.
• All work must be carried out professionally and in accordance with the applicable
safety regulations.
• Care must be taken at all times.
• Remedial action must only be carried out by qualified personnel who are familiar with
the entire installation as well as the special risks associated with its different parts.
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1 Safety, service
1.2.1 Safety risks related to gripper
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