Honeywell 5704 Operating Instructions Manual page 132

MAN0448_Issue 13_ 01-2010
005704-M-5001 A03249
CHAPTER 5 - COMMISSIONING AND
MAINTENANCE INSTRUCTIONS
Error
Code
85
84
83
82
Error Code Meaning
This allows cards to be moved to alternative
slot locations for fault finding purposes.
This message may also be displayed when
fitting a new channel card or fitting a spare
replacement. The message can be cleared by
calibrating the channel card to the new slot
location and connected sensor.
Depending on the alarm configuration,
moving channel cards to alternative slots may
compromise the generation of alarms. The
alarm operation should be checked after the
card has been moved and calibrated.
Not used
Datasum Changed
The datasum changed message is displayed
if there is a failure in the channel card RAM
during normal operation.
The card should be reset by removing the
power to the card. This is achieved by
removing the card from the rack slot and
then replacing the card back into the rack
slot. If the error message persists the card
needs replacing.
Bead Current Fault
The current setting fault message is
displayed when the control card is unable to
set or maintain the correct operating current
for a catalytic sensor.
Check the cable sensor connection and cable
line lengths to ensure that the maximum line
impedance has not been exceeded.
Lifetime Expired
The lifetime expired message is displayed if
the catalytic sensor sensitivity falls to below
50% of its original value.
5-11
5704 Control System
Software Card Fault latch
Version Status Signal
All Non Yes
Active
1V6 Non Yes
or Active
later
All Active No
No
Yes
No