Table of Contents
Advertisement
Installation and Operations Guide
VLX/ACM-VLX/EXP/AXM operation and maintenance
Using VLX diagnostic LEDs
EXP/AXM Status LED
64
|
ACM-VLX/VLX/EXP/AXM
This topic provides information for using diagnostic LEDs on the VLX, using H-
O-A switches, and resetting the VLX. It also documents using Compass software
to save and send data to the controller.
The VLX has four diagnostic LEDs that indicate operational status. During test
modes and when performing special operations, such as clearing memory, these
LEDs provide status feedback. See "Performing a comprehensive field test
(VLX/VLX-Platinum)" on page 69 for information on testing feedback.
Table 14
VLX diagnos tic LEDs
LED
De s c riptio n
CPU
FLAS HING = The CPU is ope rational. Note that unde r he avy CPU activity, this
LED may flas h rapidly e nough to appe ar s te ady ON.
OFF = CPU fault. Contact your Ale rton de ale r.
S YS
ON = Normal. S ys te m boot code is loade d and ope rational.
OFF = S ys te m boot code fault. Contact your Ale rton de ale r.
ROC
ON = ROC is loade d and ope rational.
OFF = ROC not loade d. Conne ct ope rator works tation and download ROC.
DDC
FLAS HING = DDC loade d and e xe cuting. LED s tatus toggle s pe r DDC cycle .
OFF = No DDC loade d. Conne ct ope rator works tation and download DDC file .
Each EXP has an LED located in the upper left-hand corner (AXM's are located
in upper right) labeled STATUS, which indicates the status of communications
to the VLX/ACM-VLX.
Table 15
EXP/AXM S tatus LED indication of ope rational mode
LED flas h mo de
Me aning
Rapid flas h
Normal, valid VLX/ACM-VLX communications . Imme diate ly upon
re ce iving a me s s age addre s s e d to it from the VLX/ACM-VLX, the
(ON 0.5 s e conds ,
EXP/AXM e nte rs this mode (unle s s backup mode has be e n in
OFF 0.5 s e conds )
e ffe ct for le s s than five minute s ).
Me dium flas h
Indicate s that the EXP/AXM is re ce iving me s s age s from the VLX/
ACM-VLX, but is re ce iving none addre s s e d to it. This is an
(ON 1.0 s e conds ,
indication of s oftware is s ue s . The EXP/AXM will e nte r me dium
OFF 1.0 s e conds )
flas h mode brie fly be fore s low flas h mode .
S low flas h
Indicate s that the EXP/AXM is not re ce iving any me s s age s .
Typically an indication of phys ical conne ction is s ue s .
(ON 2.5 s e conds ,
OFF 2.5 s e conds ).
Puls e flas h
EXP/AXM is in backup mode . Outputs are s e t to backup mode
value s . To pre ve nt s hort-cycling, this mode pe rs is ts for a
(ON 0.5 s e conds ,
minimum of 5 minute s , re gardle s s of communications s tatus . S e e
OFF 2.5 s e conds )
"Backup mode s e que nce of ope ration" on page 66.
© Honeywell. All Rights Reserved. LT-VLXEXPAXMIOG Rev. 01
Hide quick links:
Advertisement
Table of Contents
