Applicable Systems
LR Mate 200iD
M-710iC
M-20iA
M-1iA
R-2000iC
Symptoms
Servo amplifier internal temperature exceeds safe limit; amplifier shutdown to protect power devices.
Possible Causes
- Amplifier cooling fan stopped
- Controller cabinet ventilation blocked
- Excessive duty cycle at high load
Troubleshooting Steps
- Step 1: Check amplifier cooling fan operation
Fan running at normal speed - Step 2: Inspect controller cabinet ventilation openings
Openings clear, no blockage - Step 3: Check ambient temperature in robot cell (should be < 45C)
Ambient temp within spec - Step 4: Review duty cycle and reduce if excessive
Duty cycle within amplifier rating - Step 5: Replace cooling fan if not operating
New fan provides adequate airflow
How to Reset
Reset via teach pendant after amplifier cools (< 60C).
Common Replacement Parts
- Servo Amplifier Cooling Fan
- Cabinet Air Filter
Frequently Asked Questions
- Q: What is maximum ambient temperature for Fanuc robot?
Typically 0-45C operating, -10-60C storage. Check specific model specs. High ambient temp reduces amplifier and motor life.
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Source: doc.eleok.com Fanuc manual
Category: Robot
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