Operating / Mounting instruction
30 192-550003N10 ETH ATEX December 2019
2.2 Electrical installation
2.2.1. Direction of the motor during extension of the cylinder
Figure 10: Turning direction of the motor during extension of the cylinder
With parallel drive (see Figure 10) of proximity swithc), the turning direction of the
motor is reversed in comparison with the direct drive configuration!
2.2.2. Sensors
All electro cylinders feature a permanent magnet in the spindle nut. It activates the
sensors which are mounted in the special mounting grooves on one side of the
cylinder.
Depending on the design of the proximity switches, the proximity switches
protrude up to 1 mm from the mounting groove of the cylinder.
Proximity swichtes and limit switches: please refer to im ETH Catalogue
http://solutions.parker.com/eth_support.
In ETH ATEX cylinders only certified sensors must be used:
Area 1 (Category 2G)
Explosive range IIB resp. IIC.
Temperature class 4.
For the ETH ATEX cylinder only use the NAMUR limit switches of the catalogue
which are ATEX certified.
2.2.2.1 Mounting of proximity switches
Proximity switches can be inserted into all grooves on the ETH electro cylinder.
If no sensors are mounted by the manufacturer (on customer request), please
remove the groove protection covers. Use a sharp screwdriver to lever the ends
of the covers off the grooves. Pull the entire covers out manually.
Install the sensors. The proximity switches can be inserted into the grooves from
above. The cable ends should lead into the motor direction. Push the proximity
switches to their approximate positions in the grooves of the cylinder body.
Tighten the fixing screws on the proximity switches slightly.
If limit switches are used as end limits (see page 31) or are pre-assembled at the
factory (at customer request), do set them.
You can use the formerly removed protective covers in order to fix the sensor
cables. Please cut the covers to the desired length. A pair of scissors may be
used. At the point where the cables are led out, shorten the respective tape 5 to
10 mm additionally (see Figure 12).
Insert the cables into the grooves of the plastic covers and push the cover into
the groove together with the cable.
Please observe the Operating Instructions of the manufacturer when
commissioning the sensors.
Connect the proximity switches to the controller.
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