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Instruction Manual
D103563X012
Removing the Module Base
Refer to figure 7‐2 or 7‐4 for key number locations.
WARNING
To avoid personal injury or equipment damage from bursting of parts, turn off the supply pressure to the digital valve
controller and bleed off any excess supply pressure before attempting to remove the module base assembly from the
housing.
1. Unscrew the four captive screws in the cover (key 43) and remove the cover from the module base (key 2).
2. Using a 6 mm hex socket wrench, loosen the three‐socket head screws (key 38). These screws are captive in the
module base by retaining rings (key 154).
Note
The module base is linked to the housing by two cable assemblies. Disconnect these cable assemblies after you pull the module
base out of the housing.
CAUTION
To avoid affecting performance of the instrument, take care not to damage the module base seal or guide surface. Do not
bump or damage the bare connector pins on the PWB assembly. Damaging either the module base or guide surface may
result in material damage, which could compromise the instruments ability to maintain a pressure seal.
3. Pull the module base straight out of the housing (key 1). Once clear of the housing, swing the module base to the
side of the housing to gain access to the cable assemblies.
4. The digital valve controller has two cable assemblies, shown in figure 6‐1, which connect the module base, via the
printed wiring board assembly, to the travel sensor and the terminal box. Disconnect these cable assemblies from
the printed wiring board assembly on the back of the module base.
Figure 6‐1. Printed Wiring Board Cable Connections
TERMINAL
BOX
W9924‐1 profibus
MODULE BASE ASSEMBLY
HOUSING
CABLE
TO TERMINAL BOX
Maintenance and Troubleshooting
PRINTED WIRING
BOARD
ASSEMBLY
CABLE TO TRAVEL SENSOR
June 2017
47
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Troubleshooting
