Actuator Versions; Pme120-Ai; Pme120-An; Lubrication - ABB PME120-AI Service Instruction

6 PME120-AI / PME120-AN (Contrac) ELECTRICAL ROTARY ACTUATOR | SEI/PME120-EN REV. A

3 Actuator versions

Electrical rotary actuators PME120 are available in two versions:
• PME120-AI (with integrated electronic unit)
• PME120-AN (for separate electronic units)

PME120-AI

PME120-AI
Figure 2: PME120AI with dismounted electronic unit

PME120-AN

Electronic unit EAN823
PME120-AN for field installation
Figure 3: PME120-AN with available, separate electronic units
Electronic unit
Electronic unit
EAS822 for rack
installation

4 Lubrication

Mounting position

The spur gearing of the actuator PME120 and RHD250 /
RHD500 / RHD800 / RHD1250 / RHD2500 / RHD4000 (Contrac)
are lubricated with oil. 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.
1 Control screw
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, see Filling volumes on page 7.
Note
It is important that sufficient cooling air is supplied, sufficient
space is available for changing components and free access is
guaranteed to the electronic unit cover (PME120-AI).
To achieve this, allow for the following minimum distances:
Actuator
PME120
RHD250
RHD500 / RHD800
RHD1250 / RHD2500
RHD4000
2 Vent valve
30 mm (1.18 in)
40 mm (1.57 in)
30 mm (1.18 in)
40 mm (1.57 in)
40 mm (1.57 in)
A