Assignment Of Controller And Motor - Lenze 4800 Manual

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14 Selection aid
14.1

Assignment of controller and motor

Lenze does not only offer controllers but also a complete motor programme with
surface ventilated and enclosed ventilated machines. These motors perfectly
match the controllers 48XX/49XX.
On request, these motors can be equipped with the following:
( Gearbox
( Clutches/brakes
( Analog tachos
( Resolvers
( Incremental encoder
More information about installation, commissioning and maintenance of Lenze
DC motors can be obtained from the Operating Instructions "DC motors".
14.1.1 Selection criteria
The electrical rated data (armature current, armature voltage) of the controller
should be more or less the same as for the driving motor to ensure optimum
operating features of the whole drive (controller and motor, see chapter 3.3).
Since the motor provides overcurrent reserves from 12.5% to up to 80% over a
short period of time, the compensated drive motor generated a torque increased
by this factor when constantly excited.
For unadapted motors we distinguish between the following:
1. Rated armature voltage of the motor > rated armature voltage
2. Rated armature voltage of the motor < rated aramture voltage of the
of the controller
(= max. permissible controller output voltage).
The motor cannot be fully driven at this speed. The armature voltage is
proportional to the speed at constant excitation.
controller (= max. permissible controller output voltage)
The controller output voltage is to be limited to the motor voltage by
setting the parameters accordingly (C011 = n
motor can be used with this control mode (insulation, commutation
voltage). In general, this control mode is possible with deviations up to
approx. 20%.
Selection aid
). Check, whether the
max
48XX/49XXSHB0399
14-1