Replacing The Processing Unit; Figure 10-1 Cabling - Siemens SIPROCESS GA700 Operating Instructions Manual

10.4

Replacing the processing unit

1. Brandenb
2. Remove the housing cover. To do so, unscrew the two nuts on the rear panel of the
3. Remove the printed circuit board holder
4. Disconnect the power supply cable
5. Loosen the screws and remove the processing unit (PU)
6. Install the new PU in the reverse order.
Rack-mounted device
Operating Instructions, 01/2013, A5E31874006-01
device and push the housing cover to the back.
pin ribbon cable to the analyzer module (AM) and option module
④
cable .
①
PCB holder and screws
②
PU and screws
③
Power supply cable
Figure 10-1 Cabling
Note
Tightening the screws
Tighten the screws on the rear panel with a torque of
• 1.3 Nm,
the screws of the PCB holder on the power supply unit, and the cap nuts on the housing
cover with a torque of
• 2.5 Nm.
10.4 Replacing the processing unit
①
by loosening the two screws.
③
, the 26-pin ribbon cable to the display
④
Ethernet cable
⑤
12-pin ribbon cable
⑥
26-pin ribbon cable
②
Maintenance and service
⑥
, the 12-
⑤
, and the Ethernet
.
59