Part Replacement; Replacement And Spare Parts List; Return Parts For Repair; Remove The Rmc From The Din Rail - ABB RMC-100 User Manual

8.8

Part replacement

Follow this procedure to remove and replace parts on the controller. Part replacement might require
removal of power and other connections from the unit, so plan any part replacement carefully.
Removal of controllers installed in enclosures might require removal of connections to outside ports.
Schedule maintenance windows that are appropriate for the procedure.
DANGER – Serious damage to health / risk to life. Do not allow RMC components to
have contact with a non-insulated tool or be without a proper grounding device. This could
create a static electric discharge resulting in bodily injury and damage to the electronic
components. Use properly insulated tools and wear a grounding strap to eliminate static
electricity when connecting or disconnecting wires.
WARNING – Bodily injury. Do not separate any energized connectors. This applies to all
connectors and connections.
Verify that no hazardous atmosphere is present when performing maintenance on the unit, and
that fumes are fully vented.
Determine if field wiring cables and wires are energized from optional power sources other than
the RMC. Disconnection of energized cabling or wiring causes a spark that can ignite a
hazardous atmosphere, if present.
IMPORTANT NOTE: Pry terminal connectors off the electronic board with a slotted screwdriver for
procedures that require removal of terminal connectors from the RMC.
8.8.1

Replacement and spare parts list

Table 8-5 provides the part numbers for spare parts used with the RMC.
Table 8-5: RMC replacement and spare parts
Part Name
RMC housing base
RMC housing cover
RMC electronic board
Display assembly
Lithium battery
Communication module
8.8.2

Return parts for repair

Securely wrap the Totalflow component in protective anti-static packaging before returning it for
repair. Call the ABB main office number on the last page of this manual, and ask for a Return
Authorization number (RA). Affix the number to the outside of the return package. The customer
prepays for shipment.
ABB ships any part not covered by the original system warranty to the customer FOB.
8.8.3

Remove the RMC from the DIN rail

To remove the RMC from the DIN rail:
1. Remove terminal connectors from power ports according to section 8.7.1, Remove power from
the controller.
2. Remove terminal connectors from I/O and COMM ports.
3. Remove cables from communication ports (USB, Ethernet, or MMI).
4. Remove TFIO modules from the TFIO A and B interfaces (if used).
5. Insert a slotted screwdriver into the top slot
6. Push the screwdriver handle down gently to release the clip.
7. Detach the top of the RMC gently and hold it to prevent it from snapping back onto the DIN
rail.
8. Insert the slotted screwdriver into the bottom slot of the DIN rail release clip, if necessary.
9. Gently detach the RMC from the DIN rail.
Part Number
2105347-XXX
2105349-XXX
2105023-XXX
2105041-XXX
1487010-XXX
2105236-XXX
(Figure 8-38) of the DIN rail release clip.
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