Parker Compax3 User Manual

Setting up Compax3
C3I12T11
282
192-120113 N08 C3I12T11 - December 2010
Resonance points and their causes
In this chapter you can read about:
Rotary two mass system ................................................................................................ 282
Linear two mass system ................................................................................................ 283
Toothed belt drive as two mass system ......................................................................... 284
Mechanical system with a resonance point
fARes: Anti resonance frequency
fRes: Resonance frequency
The displayed change of the frequency response (resonance point), has its cause
in a so-called two mass system (caused by the elastic coupling of two masses).
As, upon closer examination, each mechanic coupling shows a certain elasticity, it
is no the question if there is a resonance point, but at which frequency it is and how
well it is attenuated.
Rotary two mass system
M
M
1
1
M
M
2
2
J
J
1
1
J
J
2
2
D
D
The shown system corresponds for instance to a motor with a flywheel coupled via
a shaft. Hereby J1 corresponds to the motor moment of inertia and J2 to the
moment of inertia of the flywheel.
Hint

Parker Compax3 Specifications

General

Protection Class	IP20
Control Modes	Torque, Speed, Position
Feedback Options	Incremental encoder, Absolute encoder, Resolver
Communication Interfaces	CANopen, EtherCAT, Profinet
Safety Features	STO (Safe Torque Off), SS1 (Safe Stop 1), SOS (Safe Operating Stop)
Input Voltage	200-480 VAC
Relative Humidity	5% to 85% (non-condensing)
Shock Resistance	According to EN 60068-2-27
Operating Temperature	0°C to +40°C