Installing a module card - PR-43-AC - PR-43-AP - PR-43-GC - PR-43-GP - PR-43-PC

MI User Guide

Document code
IM-EN-MI
Revision
D
Language
English
Product
PR-43-AC
PR-43-AP
PR-43-GC
PR-43-GP
PR-43-PC
Document type
User guide
CAUTION Before installing a module card, make sure that the MI is turned off.
  1. To open the enclosure, remove the inner door screws with a TX25 screwdriver.
  2. Open the inner door and move it to the side.
  3. Remove the screws from the module card holder and remove the holder to get access to the card slots.
  4. Insert the module cards and replace the module card holder.

    To make adding cards easier, start from the left. For safety reasons Vaisala recommends that relay modules are mounted in slots 2, 4, 6 and 8, with the connector pointing downwards. This way the relay power wiring is as short as possible. You can mount any other module cards in any slot.

    CAUTION A relay module card may have an external power source. Make sure that also this external power source connected to a relay module is OFF before installing or removing module cards.
    CAUTION In some circumstances when switching off MI, I/Os of General I/O module are undefined and may go to HIGH state.
  5. Connect the module connection cable to the module card.
    1. Remove the removable connector from the module card.
    2. Bring the module connection cable to the MI and put it through the cable gland or conduit hub (1).
    3. Connect wires to the screw terminals on the removable connector (2).
    4. Reconnect the removable connector to the module card (3).