14
EBS852 / EBS862
ELECTRONIC UNIT | OI/EBS852/EBS862/EX-EN REV. B
6
Installation
Mounting
NOTICE
Damage to components!
Damage to components caused by ingress of foreign bodies
or humidity.
• Keep all housing covers and terminal compartments
closed during installation to prevent the ingress of foreign
bodies such as drilling shavings, liquids or dust.
The electronic unit is installed in the vicinity of the drive outside
the hazardous area. Screw-type terminals are used to connect
the two modules on the actuator side and on the electronics
side.
The cables are connected to the actuator through two terminal
compartments:
• Motor connection compartment (Ex d)
• Sensor terminal compartment (through Ex e terminals)
The SD241-B motor temperature monitoring unit or a similar,
certified tripping unit must be connected to the power supply of
the electronic unit.
The motor temperature monitoring unit must be installed
outside of the potentially explosive atmosphere.
When installing the electronic unit, observe the following points:
• You must be able to activate the power supply of the
electronic unit on-site.
• All signal cables and the motor cable between the
actuator and electronic unit must be shielded.
• The cable shield must be placed on both housings when
connecting the electronic unit and the actuator.
• The maximum vibration load must be observed during
installation, see
Device designs
on page 11.
• When mounting the electronic unit in work and traffic
areas that may be accessed by unauthorized persons, the
operator is required to take suited protective measures.
EBS852
1.
Fasten the electronic unit to the vertical mounting rail of the
mounting rack using grade 8.8 screws. Tensile strength 800
N/mm
2
(116032 pounds/square in.), yield strength 640
N/mm
2
(92826 pounds/square in.).
2.
Provide adequate room for installation and ensure easy
access.
3.
The cable entries must be directed to the right.
