6.4.6
Using single-stranded cables
WARNING
High temperatures from induced eddy currents
With high currents and where several single-stranded cables are used instead of multiple-
stranded cables, high temperatures can result in the cable entry area due to induced eddy
currents. A short-circuit and an explosion may occur. This can result in death, serious injury,
or material damage.
● After commissioning, ensure that the temperature limits of the connected power cables
are not exceeded during operation. This temperature effect can be reduced by altering
the conditions at the entry points or by using modified cable entry plates after consultation
with the manufacturing plant.
● Use a cable entry plate made of non-ferrous metal.
6.4.7
Internal equipotential bonding
Between the ground terminal in the terminal box enclosure and the machine enclosure, the
fixing screws of the terminal box serve as PE conductor connection.
Between terminal box cover and terminal box enclosure, the cover fixing screws serve as
equipotential bonding.
A special external ground conductor is only installed if, for example, flat seals are mounted
without additional support.
When performing any installation work, you must always take care to ensure that all
equipotential bonding measures remain effective.
6.4.8
Stepless mating face for sealing in the terminal box cover (not for GT640)
The sealing face of the terminal box cover is formed by the terminal box enclosure and the
cable entry element. Therefore make sure these parts are correctly aligned, so as to ensure
the seal and hence the degree of protection.
Align the cable entry support and the cable entry plate to the terminal box enclosure so that
the sealing surface between the terminal box and the terminal box cover form a flat face. There
must be no steps in the sealing area.
Electrical connection
6.4 Connection
SIMOTICS TN Series N-compact 1LA8
Operating Instructions 05/2014
75
Содержание 1LA8
Страница 2: ...23 05 2014 10 18 V8 00 ...
Страница 12: ...Table of contents SIMOTICS TN Series N compact 1LA8 12 Operating Instructions 05 2014 ...
Страница 14: ...Introduction 1 1 About these instructions SIMOTICS TN Series N compact 1LA8 14 Operating Instructions 05 2014 ...
Страница 60: ...Assembly 5 3 Installing the machine SIMOTICS TN Series N compact 1LA8 60 Operating Instructions 05 2014 ...
Страница 88: ...Start up 7 7 De energizing SIMOTICS TN Series N compact 1LA8 88 Operating Instructions 05 2014 ...
Страница 100: ...Operation 8 11 faults SIMOTICS TN Series N compact 1LA8 100 Operating Instructions 05 2014 ...
Страница 173: ...AC Declaration of conformity 1LA8 area 22 AA KE NSR _1LA8_1PQ8_1PP8_1LP8 ...