Agromatic ESR-NK Series, Installation And Operating Manual, Page: 15 / 98

2 Safety 2.3 Residual risks
Actuators NK and VK, Position Controller ESR-NK 9
2.3.3 Protection classes of the actuator and the stroke
unit
The actuator may not be put into service unless
–
the hood is properly installed, and
–
the screwed cable glands are plugged and have been checked for
tightness.
NOTE
–
To be able to ensure that protection class IP65 (actuator) or IP54
(stroke unit) is permanently complied with, the actuator must be pro-
tected against mechanical influences, e.g. by attaching safeguards or
installing the actuator in a protected location.
–
Outdoor installation of the actuator is only permitted if approved by
Agromatic Regelungstechnik GmbH.
–
Protect the actuator against environmental influences such as UV radia-
tion, humidity, formation of condensation, fluctuations of temperature,
and frost.
–
The heat dissipation of the actuator must be ensured when additional
protective covers are installed. Non-observance may cause damage to
the actuator (e.g. due to overheating of the motor windings).
The following items must always be observed for all actuators:
Screwed cable glands
−
The actuator has screwed cable glands size M20 x 1.5 and/or M16 x 1.5
and filler plugs (where required) to allow connection lines to be inserted.
−
Always cover the cable glands properly before storing, installing and start-
ing up the actuator.
−
Only use connection lines with an outer diameter suitable for the cable
glands.
−
When cable glands/filler plugs are to be replaced or retrofitted, the re-
placement parts must be certified for the actuator's protection class.
Installing the hood
−
See section “5.8 Installing the hood” .
Housing/hood
−
Swapping hoods of different actuators is not permitted.
−
Do not drill any holes into the actuator housing or the hood.