18
1. GENERAL
Attention! Read installation, operation and maintenance instructions, connection
diagram, additional connection diagram and safety regulations before
transportation, installation, start-up, maintenance and repair. Mind the
information!
These basic instructions are referring to catalogue IEC low voltage squirrel-cage induction motors of
totally enclosed design (index of protection IP55 or higher acc. to IEC 60034-5) in design
EXPLOSION-PROOF MOTORS (FRAMEPROOF ENCLOSURE) - " d/db"
SERIES 5AT 71 – 112
AND 7AT 90-315.
General informations.
To prevent damage to motors and the driven equipment the procedures laid
down in the Operating and Maintenance Instructions must be followed. Especially to avoid risk of
injury, the separately enclosed Safety Regulations must be adhered to strictly.
Since for reasons of clarity the Operating and Maintenance Instructions cannot contain specific
information with regard to all conceivable special applications and areas with special requirements,
the user himself has to make appropriate protection arrangements during the installation process.
Qualified personnel.
Installation work, commissioning and operation of motors must only be done by
qualified personnel. Installation work shall only be done by qualified personnel who is skilled because
of a technical education, expertise and schooling of knowledge about
security regulations,
accident prevention regulations,
standards and approved rules of technique
The qualified personnel must have the ability to assess the assigned job, identify possible dangers
and avoid them. The qualified personnel must be authorized by the person in charge for security of
the plant to carry out the necessary work and tasks.
Intended use.
This motor is only approved for the intended use given by the manufacturer in his
catalogue and the corresponding technical documentation. Other or additional use is not intended.
This includes consideration of all corresponding product documents. Changes or reconstruction of the
motor are not allowed. External products and components that shall be used together with the motor
must be approved or recommended by the manufacturer.
Type of protection, temperature class and characteristics have to be taken from
the name plate of the motor. If the certification number includes the letter X,
special requirements have to be observed that are listed in the corresponding
type examination certificate.
Disclaimer.
Observance of this manual and the conditions and methods used for installation,
operation, use and maintenance of the electric motor can not be monitored by the manufacturer. An
improper installation can result in property damage and thus result in personal injuries. We therefore
do not accept responsibility and liability for losses, damages or costs resulting from improper
installation, improper or wrong use and maintenance or connected with this in any kind. We strive to
improve our products continuously. Consequently technical data and illustrations remain subject to
change without prior notice. Specifications may only be considered binding after written confirmation
by the supplier.
