Instruction Manual

Instruction Manual

D103409X012

Maintenance and Troubleshooting

December 2013

Component Replacement

When replacing any of the components of the DVC6200, the maintenance should be performed in an instrument shop

whenever possible. Make sure that the electrical wiring and pneumatic tubing is disconnected prior to disassembling

the instrument.

Removing the Module Base

Refer to figure 8‐2 or 8‐4 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.

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/base unit has two cable assemblies, shown in figure 7‐1, which connect the module

base, via the printed wiring board assembly, to the output of the travel feedback sensor board and the travel

feedback sensor. Disconnect these cable assemblies from the printed wiring board assembly on the back of the

module base.

Figure 7‐1. Printed Wiring Board Cable Connections

HOUSING

W9913

CABLE TO TRAVEL SENSOR

PRINTED WIRING

BOARD ASSEMBLY

CABLE

TO TERMINAL BOX

TERMINAL

BOX

MODULE BASE ASSEMBLY