Replacement Procedure - Honeywell HPM Service

Replacement procedure

Use the procedure in the following table to replace an FTA.
Step
1
Unplug the cable(s) from the associated IOP card connector to the FTA at the FTA.
Remove the field power serving the FTA to be replaced. Unplug the field wiring
terminal-strip from the FTA. It is not necessary to unscrew the field wiring if
compression terminals are used.
2
Remove the screws that hold the FTA to the mounting channel. Carefully remove the
FTA.
3
Compare the replacement FTA with the removed FTA. Be sure any 250 ohm or zero-
ohm resistors that have been clipped on the removed FTA are also clipped on the
replacement FTA. Be sure all fuses are in place and jumpers are properly positioned.
4
Install the replacement FTA with the screws that were removed in step 2. Rotate them
counterclockwise until they fall into the original threads, then tighten them clockwise.
Reconnect the field wiring terminal connector and the cable from the associated IOP
card(s).
ATTENTION
Connecting the HPMM's High-Performance I/O Link card to an FTA through its backpanel
connector causes continuous I/O Link errors to occur.
Connecting the HPMM's High-Performance Comm/Control card to an FTA through its
backpanel connector could cause damage to the HPMM card set as well as the backpanel.
Inserting an HPM UCN Interface module in slot 1 (slot 9 in a Right 7-Slot card file) with an IOP
present in the slot and configured as IOP A causes an IOP Configuration Mismatch status. IOP
A erroneously determines that it is connected to the FTA B connector.
R688
December 2020
HPM High-Performance Process Manager Service
Honeywell
6 Removal and Replacement
6.8 IOP to FTA Cable Replacement
Action
423