68 – Pvd3675_Gb_Ey_Septembre_2017
becoming unusually hot
• It may be overloaded or the rotation speed is too low :
check the current and the operating cycle of the motor.
• Check if the mounting surface is enough or if this
is not a heat source – see §3.6 cooling.
• Friction in the machine may be too high :
- Test the motor current with and without a load.
- Check the motor does not have thermal insulation.
-
Check that there is no friction from the brake when
the brake power is on.
is too noisy
Several possible explanations :
• Unsatisfactory mechanical balancing
• There is friction from the brake: mechanical jamming.
• Defective coupling
• Loosening of several pieces
•
Poor adjustment of servo drive or position loop : check
rotation in open loop
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