Agromatic ESR-NK Series, Installation And Operating Manual, Page: 75 / 98

Actuators NK and VK, Position Controller ESR-NK 69
7 Operation
Important information!
The actuator may not be put into operation unless the owner/lessor of the
machine/system has proven that the system or machine into which it is to
be installed is in compliance with all applicable EC directives.
The actuator may not be put into service unless
–
the hood is properly installed, and
–
the screwed cable glands have been sealed.
CAUTION
Danger of burning at the actuator motor and at the actuator compo-
nents!
The actuator motor may become hot during operation.
The valve may transfer very low or very high temperatures to the actuator,
which depend on the ambient conditions and the temperature of the medi-
um flowing through the valve.
–
Do not operate the actuator without the hood in place.
–
Where necessary, install safeguards on the actuator to prevent access
to it.
NOTE
Continuous overloading or blocking of the actuator (e.g. by incorrect-
ly set limit switches or foreign objects in the valves) will cause dam-
age to the actuator.
–
Properly set the limit switches (see section “5.4 Setting the position
switches” ).
–
Regularly inspect the valves for foreign objects.
Before
–
switching the actuator on or off ,
–
changing any settings (e.g. rotational direction or swivel range) at the
actuator,
check whether these actions could cause any dangerous movements
within the machine/system or malfunctions of other assemblies!