Universal Robots UR20

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3.2.2. Functional and Safety Inspectionbelow
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3.1.2. Visual Inspection: Robot armon page6
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4.1. Pre-Use Assessmenton page12
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Control Box
Inspection action type Timeframe
Monthly Biannually Annually
1 Check Emergency stop on Teach
Pendant
F ✘
2 & 3
Check the 3PE buttons by pressing
them gently.
F ✘
Check Backdrive mode F ✘
Check Freedrive mode F ✘
4 Check safety inputs and outputs(if
connected)
F ✘
5 Check Teach Pendant cable and con-
nector
V ✘
6 Check and clean air filters on Control
Box
V ✘
7 Check terminals in Control Box F ✘
8 &9 Check electrical grounding 1< Ω to
Control Box
F ✘
Check main power to Control Box F ✘
V = Visual inspection F = Functional inspection
3.2.2. Functional and Safety Inspection
NOTICE
Failure to test robot safety functions regularly can result in loss of functionality.
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Test the robot safety functions monthly to ensure correct function.
To test the Emergency Stop button on the Teach Pendant:
1. Press the Emergency Stop button on the Teach Pendant.
2. Observe the robot stops and shuts off power to the joints.
3. Power on robot again.
Service Manual 9 UR20
3.Recommended Inspection Activities
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