2 General
Operating Manual 90° ACTUSAFE CMF(S)QT
OM-ENGLISH-Failsafe-QT-16xx-V2.00-2022.03.01
2.3
Operating mode
ACTUSMART CM actuators are suitable for open-loop control (S2 operating mode – on/off duty), closed-loop control (S4
operating mode – modulating duty) and continuous mode (S9 operating mode) according to EN 60034-1.
2.4
Protection class
ACTUSMART CM actuators by default meet IP 67 (EN 50629) protection.
CAUTION:
The protection class specified on the type label is only effective when the cable glands also provide
the required protection class, the cover of the connection compartment is carefully screwed closed, and the
mounting position (see section 2.5, page 24) is observed.
We recommend metallic screwed cable glands with a metrical thread. Furthermore, cable inlets that are not needed
must be closed with screw plugs.
CAUTION:
On explosion-proof actuators, cable glands with protection class
EEx e acc. EN 60079-7
must be
used.
After removing covers
for assembly purposes or adjustment work, take special care upon reassembly
so that seals are not damaged and remain properly fastened. Improper assembly may lead to water ingress
and to failures of the actuator.
CAUTION:
The cover of the control unit – the operating unit (see Figure 13, page 23) – must not be opened!
NOTE:
Allow a certain sag in the connector cables before reaching the screwed cable glands so that water can drip
off from the connector cables without running to the screwed cable glands. This way, forces acting on the screwed cable
glands are also reduced (see section 2.5).
2.5
Mounting position
Generally, the installation position is irrelevant. However, based on practical experience, it is advisable to consider the
following for outdoors use or in splash zones:
• Mount actuators with cable inlet facing downwards.
• Ensure that sufficient cable slack is available.
2.6
Direction of rotation
Unless specifically ordered otherwise, the standard direction is (see Figure 17 and Figure 18):
•
right turning (clockwise) = CLOSING
•
left turning (counter-clockwise) = OPENING
Clockwise rotation of the actuator is given when the output shaft turns counter clockwise when looking at the output shaft.
Figure 17:
clockwise = close
Figure 18:
counter-clockwise = close
NOTE:
All specifications in this operating manual refer to the standard direction of rotation.
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