ZIEHL-ABEGG ZETADYN 4C, Перевод оригинальной инструкции по эксплуатации, Страница: 12 / 204

2.9 Operator ’ s obligation of diligence
The device has been designed and constructed with consideration of a hazard analysis and after
carefully selecting the harmonized standards to be complied with as well as additional technical
speci
fi cations. It thus complies with the state-of-the art and ensures the highest degree of safety.
However, this safety can only be implemented in operational practice if all measures necessary for
this purpose are taken. The operator of the installation has the obligation of due diligence to plan
these measures and monitor their implementation.
In particular, the operator must ensure that
•
The device is only used as intended (cmp. chapter "Product overview" concerning this)
•
The installation is operated solely in a fl awless, functional condition and that especially the safety
devices are periodically checked for their properly functioning condition
•
The required personal safety gear is available to and used by the operating, maintenance and
repair personnel
•
The operating instructions are always readily available at the location where the frequency inverter
is being used, are complete and are in legible condition
•
Only suf
fi
ciently quali
fi
ed and authorized personnel operate, maintain and repair the device
•
these staff receive regular instruction in all relevant occupational safety and environmental protec-
tion issues, are knowledgeable about the operating instructions and, especially, are familiar with the
safety instructions contained therein.
•
All safety and warning notices attached to the device are never removed and remain legible
2.10 Employment of external personnel
Maintenance and service work are frequently carried out by external employees who often do not
recognize the speci
fi
c situations and the thus resulting dangers.
These persons must be comprehensively informed about the hazards in their area of activity.
You must monitor their working methods in order to intervene in good time if necessary.
3 Product overview
3.1 Application
The ZETADYN 4C is a fi eld-oriented Frequency inverter for speed control of three-phase motors
developed for use in elevator machines.
The frequency inverter is equipped with a microprocessor control. This tracks the motor through time
and distance-restricted programs that are selected using the superordinate elevator control system.
The use of IGBT modules and pulse width modulation with variable switching frequency enables low-
noise operation of the motor. The user interface, interfaces and software adapted specially to lift
technology enable easy installation and start-up of the frequency inverter.
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 provides an AC mains with variable frequency and variable voltage. The size
of the voltage and frequency depends on the selected travelling speed and the load to be operated.
The motor is operated optimally in all operating points by using
fi eld-orientated control. This provides
every required torque almost without delay. The full rated motor torque is already available at standstill
(speed 0). All speed curves are driven in a speed-controlled and load-independent manner. The
fi
eld-
orientated control enables very accurate compliance with the speci
fi
ed travel curve over the whole
speed range. The closed loop control can be used up to a speed of 4 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).
3.2.1 centrifugal masses
In order to reduce the acceleration current, all additional inertia weights are to be removed. Solid hand
wheels are to be replaced with plastic or aluminium hand wheels.
However, please note that the removal of the inertia weights may cause an imbalance.
Translation of the original operating instructions
ZETADYN 4C
Product overview
R-TBA12_01-GB 1415 Part.-No. 00163371-GB
12/204