
RHDE250 to RHDE4000 (Contrac)
ELECTRICAL ROTARY ACTUATOR | OI/RHDE250_4000-EN REV. B
15
Installation instructions
• Make sure that no process forces are exerted on the final
control element.
• Do not lift the actuator by the motor or handwheel.
• The load pick-up device (eyebolt) attached to the actuator
may only be loaded in the vertical direction. Only use the load
pick-up device to lift / lower the actuator (without final
control element mounted).
• Make sure that the actuator is accessible from all sides so
that convenient handwheel operation, electrical connection,
or exchange of assemblies is possible.
• Select the installation location such to avoid direct exposure
to rain, snow and other environmental influences.
• The control actuators can withstand vibration loadings in
accordance with EN 60068-2-6, Table C.2 to 150 Hz and max.
2 g.
• The substructure should be designed to be level and torsion-
resistant.
• The drive elements (lever/coupling rod) must not cause
additional vibration loadings (e.g., use spring couplings or
vibration absorbers in the coupling rod.)
• When mounting the actuator close to heat sources use an
insulating layer or shielding.
• Make sure that the max. ambient temperature of 60 °C
(140 °F) or 40 °C (104 °F) for the lower temperature design is
not up-scaled. If required, provide a sunshield to protect
against direct sunlight.
• The maximum tilt angle of 140° must not be exceeded.
Fastening the actuator
1.
.Place the actuator on the fastening device in the correct
position. Pay attention to the rotating direction in
combination with the final control element.
2.
Fasten the actuator using four screws. Use the biggest
possible screw diameter and observe the tightening torque
(see table
Locking and fastening elements
on page 17).
Mounting position
The spur gears of the actuator are oil lubricated.
They contain the max. oil quantity when leaving the
manufacturer. Once the actuator is installed replace the
uppermost check plug by the separately supplied venting plug.
M10304
IMB 3
IMB 6
IMB 7
IMV 6
1
2
1
Control screw
2
Vent valve
Figure 4: Permissible mounting positions
The mounting positions presented are permissible.
To facilitate mounting and maintenance, however, it is
recommended that you use position IMB 3
For each mounting position, you should check the specified oil
level before commissioning,
Oil types
on page 38.
Note
It is important that sufficient cooling air is supplied and
sufficient space is available should components need to be
exchanged.
To achieve this, allow for the following minimum distances:
Actuator Space
RHDE250
40 mm (1.57 in)
RHDE500 / 800
30 mm (1.18 in)
RHDE1250 / 2500
40 mm (1.57 in)
RHDE4000
40 mm (1.57 in)