Table 16. Smart DC Controller - Troubleshooting
Display
Condition
Description
Alert, Error or
Fault
Possible Causes
Solutions
DEAD BATTERY
Extremely low
UPS batteries
– no automatic
operation -
batteries below
21V.
Occurs when battery voltage has
dropped to less than 21V. At this
level, batteries are 90% depleted.
Gate will automatically open or close
depending upon setting chosen. Refer
to AP - AC LOSS under "User Menu"
on page 47. No additional automatic
function is possible, but limited push
button control is available to 18V.
1.
No AC Power. See
above item.
2.
Wiring / Connector
problem - check
all connections.
Clean or repair as
required.
3.
Check battery
condition.
4.
Smart DC Controller
charger failure
- check charger
voltage and
replace Smart DC
Controller.
5.
Transformer failure -
replace Transformer.
HYSECURITY
BAD POWER
Critically low 24V
supply power.
This message
can occur only
on initial start
up if power is
critically low.
DC power is below 14V – no control
functions will be allowed at all.
1.
No AC Power. See
above item.
2.
Wiring / Connector
problem - check
all connections.
Clean or repair as
required.
3.
Check battery
condition.
No display, LED
blinking
S m a r t D C
C o n t r o l l e r i s
receiving power,
b u t b a t t e r y
voltage is very
low.
Several possible causes:
AC power has been shut off from
the operator for too long and the
batteries are drained.
Wiring problem.
Batteries no longer hold a charge.
Bad Smart DC Controller.
Bad transformer.
1.
No AC Power. See
above item.
2.
Wiring / Connector
problem - check
all connections.
Clean or repair as
required.
3.
Check battery
condition.
ACCESSORY CONNECTIONS
MX4505 Rev. E ©2020
100
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