Lenze DSD - Manual (Page 459)

Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23
459
18 Drive dimensioning messages
18.5 Lenze motor
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18.5.13 Compliance of the ErP Directive 2009/125/EC
18.5.14 Overdimensioned motor in the case of traction-controlled winding drive
18.5.15 Speed-controlled winding drive may show unstable behaviour
Note!
According to the ErP Directive, the selected motor may only be put into circulation together with a brake.
Cause Effects Possible remedies
According to the ErP Directive (2009/
125/EC), motors without a brake in
the power range 0.75 … 375 kW may
be put into circulation within in the
EU since 16 June 2011 if they comply
with the efficiency class IE2.
Since 16 June 2011, these motor ver-
sions are no longer available at
Lenze.
• Select a motor that complies with
the efficiency class IE2, e.g.:
• High efficiency motor (MHx-
MA)
• Motor optimised for frequency
inverter (MFxMA)
• Special regulations for Switzer-
land and countries outside the EU.
Notes on energy directives can be found on http://www.Lenze.com
Note!
The utilisation of the motor is xxx, relative to the stationary torque.
The motor is clearly overdimensioned for traction-controlled winding drives with a torque setting range of
yyy. Select another motor.
Cause Effects Possible remedies
In this torque setting range, a clearly
overdimensioned motor is only able
to work to a limited extent.
Lower tensile forces cannot be
reached or cannot be repeated.
Dimension the motor in a demand-
oriented way.
Note!
With a load-matching factor of xxx, the control system of speed-controlled drives in combination with
load alternations and weakly damped mechanical transmission elements with backlash between motor
and winding shaft may show unstable behaviour.
Have the application checked by the technical support.
Cause Effects Possible remedies
The load-matching factor k
j
results
from the mass and the diameter of
the full reel, the gearbox ratio and
the moment of inertia of the motor.
Unstable control mode. • Reduce the load-matching factor
k
j
through a higher moment of in-
ertia of the motor of a higher
gearbox ratio.
• Optimise the motor control.