Limitless™ WPMM Series
Issue 2
50051864
Honeywell Sensing and Control 37
11
TROUBLESHOOTING GUIDES
The troubleshooting guide includes WPMM indications and symptoms as it is being used in conjunction with the
Limitless™ switch series.
SYMPTOM
CAUSE
RESOLUTION
Green LED is not ON
10 Vdc to 30 Vdc is not
applied to "+" & "-" terminals
Check for proper connection and 10 Vdc to 30
Vdc to "+" and "-" terminals
Power leads connected in
reverse
Check for proper connection of power: "+" and
"-" terminals
Green, amber and/or red LEDs do not
blink ON at start-up
WPMM internal electronics
damaged
Replace WPMM
LED(s) burnt out
Replace WPMM
Green, amber, and red LEDs are
momentarily OFF then ON with
possible NPN output change during
normal operation. Resulting in only
green LED on and possibly incorrect
amber and red LED indication/output
for up to 30 seconds.
ESD/EMI exposure beyond
published specifications or
device performing self check
Determine source for ESD/EMI emissions in
application and take action to remove
Amber LED is flashing
Low battery in Limitless™
switch
•
Determine which Limitless™ switch has a low
battery using the procedure in Section 6.3
•
Replace Limitless™ switch battery per
Limitless™ switch Installation guide
Incorrect battery installed in
Limitless™ switch
•
Determine which Limitless™ switch has a low
battery using the procedure in Section 6.3
•
Replace Limitless™ switch battery per
Limitless™ switch Installation guide
Amber LED is constantly ON
Dead or Low battery in
Limitless™ switch
•
Determine which Limitless™ switch has a low
battery using the procedure in Section 6.3
•
Limitless™ switch status will in this case
be reported as insufficient RF
•
Replace Limitless™ switch battery per
Limitless™ switch installation guide
Incorrect battery installed in
Limitless™ switch
•
Determine which Limitless™ switch has a low
battery using the procedure in Section 6.3
•
Limitless™ switch status will in this case
be reported as insufficient RF
•
Replace Limitless™ switch battery per
Limitless™ switch installation guide
RF range/distance between
WPMM and Limitless™ switch
is beyond capability
Reposition Limitless™ switch closer to the
WPMM until amber LED is no longer ON
Exposure to adjacent
materials/objects and/or
materials/objects
Reposition Limitless™ switch away from objects
until amber LED is no longer ON
Damage or missing antenna
from WPMM and/or
Limitless™ switch
Replace antenna per Section 7.3
Antenna alignment is not
acceptable
Reposition antenna per Section 7.3
Damage to antenna cable
Replace antenna cable per Section 7.3
Loose antenna or cable
connections
Check connections and tighten as necessary per
Section 7.3