West Control Solutions Pro-EC44 - Manual (Page 14)

Pro-EC44 2-Loop Graphical Profile Controller & Recorder
Pro-EC44 Product Manual - 59540-1 October 2013 Page 7
Removing/Replacing Option Modules
1. To remove or replace Plug-in Modules 1, 2, 3 or A it is necessary to detach the power
supply and input boards from the front panel by lifting first the upper and then lower
mounting struts.
2. Remove or fit the modules to the connectors on the power supply and input boards. The
location of the connectors is shown below. Plastic pegs prevent fitting of older non-
reinforced single relay modules
– Remove the peg to fit dual relay modules
3. Assemble the Power Supply and Input boards together. Tongues on each option module
locate into slots cut into the main boards, opposite each of the connectors. Hold the Power
and Input boards together and relocate them back on their mounting struts.
4. Push the boards forward to ensure correct connection to the front Display/CPU board and
re-check the installation of the Option C and/or 2
nd
Input / Base Option 2 boards if present.
CAUTION: Check for correct orientation of the modules and that all pins
are located correctly.
Replacing the Instrument in its Housing
CAUTION: Before replacing the instrument in its housing, ensure that all
power has been removed from the rear terminals.
With the required option modules correctly located into their respective positions the
instrument can be replaced into its housing as follows:
1. Hold the Power Supply and Input boards together.
2. Align the boards with the guides in the housing.
3. Slowly and firmly, push the instrument into position in its case.
CAUTION: Ensure that the instrument is correctly orientated. A mechanical
stop will operate if an attempt is made to insert the instrument in the wrong
orientation, this stop MUST NOT be over-ridden.
Auto Detection of Plug-in Modules
The instrument automatically detects which plug-in modules have been fitted into each slot.
The menus and screens change to reflect the options compatible with the hardware. The
modules fitted can be viewed in the product information menu, as detailed in the Product &
Service Information Mode section of this manual.