Parker EX Series, Техническое руководство

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– Pvd3665_Gb_Ex_August 2022
3.4.3. Frame recommendation
Warning : The user has the entire responsibility to design and prepare the
support, the coupling device, shaft line alignment, and shaft line balancing.
Foundation must be even, sufficiently rigid and shall be dimensioned in order to avoid
vibrations due to resonances.
The servomotors need a rigid support, machined and of good quality.
The maximum flatness of the support has to be lower than 0.05mm.
The motor vibration magnitudes in rms value are in accordance with IEC 60034-14 grade A:
➢
maximum rms vibration velocity for EX is 1.3mm/s for rigid mounting
Warning : A grade A motor (according to IEC 60034-14) well-balanced,
may exhibit large vibrations when installed in-situ arising from various
causes, such as unsuitable foundations, reaction of the driven motor,
current ripple from the power supply, etc.
Vibration may also be caused by driving elements with a natural oscillation
frequency very close to the excitation due to the small residual unbalance
of the rotating masses of the motor.
In such cases, checks should be carried out not only on the machine, but
also on each element of the installation. (See ISO 10816-3).
Warning : A bad setting of the electronic control of the close loop (gain too
high, incorrect filtring …) can occur an instability of the shaft line, vibration
or/and breakdown - . Please consult us