Siemens SIMATIC IPC677D - 7.5 Separating the control unit from the computer unit

Maintaining and servicing your device
7.5 Separating the control unit from the computer unit
SIMATIC IPC677D
Operating Instructions, 09/2014, A5E32995420-AC
89
7.5
Separating the control unit from the computer unit
Introduction
You separate the control unit from the computer unit in the removed state to carry out repairs
or to replace the control unit, for example.
Requirement
● The device is disconnected from the mains.
● The device is fully removed.
● The device is lying on a soft cloth with the front side down.
Procedure
1.
Loosen the 4 screws
① some-
what, but do not remove them.
2.
Loosen the captive knurled
screw
② and remove the metal
door from the slots
③.
3.
Pry out the connector ④
using
a screwdriver.
4.
Push the computer unit back
slightly until the screw
⑤ lies
exactly in its recess.
5.
Pull the connector ④
fully out.
6.
Lift up the computer unit and
gently place it on a soft surface.