ZIEHL-ABEGG ZETADYN 3BF, Оригинальная инструкция по эксплуатации

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3 Product overview
3.1 Application
The ZETADYN 3C is a
fi
eld-oriented Frequency inverter for speed control of three-phase motors
developed for use in elevator machines.
The inverter is equipped with a microprocessing control. This drives the motor based on time and
travel-dependent programs, which can be selected through the upstream elevator controls. The use of
IGBT modules and a pulse width modulation in which the clock frequencies can be modi
fi
ed enable
low-noise motor operation. The user interface speci
fi
cally matched to elevator technology, interfaces
and software enable simple installation and commissioning of the device.
The Frequency inverter is designed for elevator installations for passenger and freight transport with a
high demand on travel comfort and positioning accuracy.
Frequency inverter for operating asynchronous motors and synchronous motors are available.
3.2 Functional description
The Frequency inverter places a three-phase line with variable frequency and variable voltage at your
disposal. The amount of voltage and rate of frequency depends on the selected traveling speed and
the load to be carried. By using a
fi
eld-orientated control, the motor is optimally operated at all
operating points. As a result, every torque required is made available practically without delay. Even in
standstill (speed 0), the motor
’
s entire torque rating is available.
Control
All operating curves are run speed controlled and load independent. The
fl
ux control enables very
precise compliance with the speci
fi
ed operating curves throughout the entire speed-control range.
The closed loop control can be used up to a speed of 3.2 m/s (higher speeds available on request).
The brakes operate almost wear-free throughout the controlled operation from speed 0 (start) to
speed 0 (stop).
centrifugal masses
In order to reduce the acceleration current, all additional centrifugal masses are to be removed. Solid
hand wheels are to be replaced with plastic or aluminium hand wheels.
However, please note that by removing the centrifugal masses, it is possible that an imbalance arises
Frequency inverter
When selecting the frequency inverter, it is assumed that the motor to be controlled will be loaded with
the rated torque at the rated speed. Additional torque is required to accelerate the motor. To create
this torque, an additional current of approx. 60
–
80% of the rated current is necessary. That means
during acceleration, the motor
’
s current consumption is approx. 160
–
180% of the rated current.
The frequency converter can be loaded to up to 10 % of the rated current for a maximum of
10 seconds. For this reason the current which is set when the motor accelerates may not be greater
than 180% of the rated current.
In general, valid is:
I
Nenn Frequenzumrichter
≥
I
Nenn Motor
3.3 Service & maintenance
These jobs must be completed during the recurrent maintenance work:
• Check the device for dirt and clean if necessary
• Check the connections and tighten if necessary
3.4 Transport
• The device is packed ex factory to suit the transport method previously agreed.
• Always use the original packaging materials when transporting the device
• Avoid shocks and impacts to the device during the transport
Original operating instructions
ZETADYN 3C
Product overview
R-TBA08_03-GB 1619 Part.-No. 00163322-GB
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