Kataeb
Member
Hy, we have a Honeywell DCS TotalPlant Alcont, to which we added a new digital output module BOU. On this module there is a Disconnect or D switch which sets all the channels on the card into a passive state. We put this switch to Connect position, but no outputs are enabled.
Has anyone seen this before? How can we solve this problem?
In the Honeywell manuals it is mentioned: For card replacement the outputs are reliably switched off by turning the front panel DISCONNECT lever to the right. This must be done both to the old and the new card. The lever must not be operated during normal operation, because an erroneous control would be caused by clearing all the output channels.
Thank you
Has anyone seen this before? How can we solve this problem?
In the Honeywell manuals it is mentioned: For card replacement the outputs are reliably switched off by turning the front panel DISCONNECT lever to the right. This must be done both to the old and the new card. The lever must not be operated during normal operation, because an erroneous control would be caused by clearing all the output channels.
Thank you
