
B–63465EN/01
5. TROUBLESHOOTING
87
4 Other information
⋅ Is there noise origin around machine?
If the failure has not occurred frequently, the cause may be external
noise to the power supply or inductive noise on machinery cables.
Operate other machines connected to the same power line and see
if noise come from the relays or compressors.
⋅ Is it taken any countermeasure for noise in machine side?
See Section 2.11.
⋅ Check the following for the input power supply voltage :
1) Is there variation in the voltage ?
2) Are the voltages different depending on the phase ?
3) Is the standard voltage supplied ?
⋅ What is the ambient temperature of the controller in the cabinet?
⋅ Has excessive vibration been applied to the control unit?
(0.5 G or less during operation)
5 When you contact our service center, specify the following items :
1) Name of the controller: FANUC Digital Servo Adapter
2) Name of the machine tool builder and type of machine
3) Software series/version
4) Specifications of the servo amplifier and motor
(for a failure related to the servo)
5) Name and contact of the person who is most familiar with the
failure conditions (for a failure related to the servo)
⋅ See the drawing issued by the machine tool builder for the
locations of the Digital Servo Adapter and servo amplifiers.
⋅ We use the following specification codes :
Servo amplifier : A06B–VVVV–HVVV
Servo amplifier : A06B–VVVV–BVVV
(V represents a number)
The above information is required by FANUC to determine
the cause of the failure. The information is used to attempt
to reproduce the failure at the service center.