1 - 7 1 - 7
MELSEC-GOT
1 OVERVIEW
1.3 Requirements for compliance with the Low Voltage Directive
The Low Voltage Directive is mandatory within Europe, effective 1st January 1997.
The Low Voltage Directive requires each device which operates with power supply
ranging from 50VAC to 1000V and 75VDC to 1500V to satisfy necessary safety items.
In the Sections from 1.3.1 to 1.3.5, cautions on installation and wiring of the GOT to
conform to the Low Voltage Directive requires are described.
We have put the maximum effort to develop this material based on the requirements
and standards of the Directive that we have collected. However, compatibility of the
devices which are fabricated according to the contents of this manual to the above
Directive is not guaranteed. Each manufacturer who fabricates such device should
make the final judgement about the application method of the Low Voltage Directive
and the product compatibility.
1.3.1 Standard applied for GOT
The standard applied for GOT is EN61010-1 safety of devices used in measurement
rooms, control rooms, or laboratories.
1.3.2 Power supply
The insulation specification of the GOT was designed assuming installation category II.
Be sure to use the installation category II power supply to the GOT.
The installation category indicates the durability level against surge voltage generated
by lightning strike. Category I has the lowest durability; category IV has the highest
durability.
Category I
Category II
Category III
Category IV
Installation Category
Category II indicates a power supply whose voltage has been reduced by two or more
levels of isolating transformers from the public power distribution.
