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Saia-Burgess Controls AG
Manual
Manual PCD 1 / PCD 2 Series
│ Document 26
/
737 E
N22 │ 2013-11-26
CPUs and expansion housings
3-18
Mounting
3
3.5 Mounting
The PCD1 and PCD2 can be snapped onto two 35 mm top-hat rails according to DIN
EN60715TH35 (formerly DIN EN50022). The PCD1/PCD2 can also be screwed to
any other flat surface with 4 M4 screws; the grooves provided for this purpose can be
accessed by lifting off the snap-on cover.
Mounting the PCD1/PCD2 on the top-hat rail
Press bottom of housing onto the mounting
surface
Press upwards against the top-hat rail
Press top of housing against the mounting
surface and snap into place
Push the housing down onto the top-hat rail to
ensure that it is secure
Removal
To remove the housing, push upwards and pull out.
3.5.1 Mounting position and ambient temperature
A vertical surface is normally used to mount the module holder; the I/O connections
to the modules then also run vertically. In this mounting position, the ambient
temperature may be from 0 °C to 55 °C. In all
other positions, air convection works
less well, and an ambient temperature
of 40 °C should not be exceeded
.