Siemens SINUMERIK ONE PPU 1740 Series Equipment Manual page 57

1. Insert the PPU into the installation cutout from the front.
2. Ensure all the 4 spring retainers on the top and bottom of the unit are fully engaged.
If the unit is not fully engaged, then carefully push the unit into the mounting cutout at the
position where it is not locked completely.
3. Insert fixing clamps in its respective position on the device.
For more details refer "Position of mounting clips for IP65 installation (Page 59)" .
PPU 1740
Equipment Manual, 01/2019, A5E47615272B AA
Installing
5.3 Installing the PPU
57