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Table 22. Smart DC Controller - Troubleshooting
Display
Condition
Description
Alert, Error or
Fault
Possible Causes
Solutions
LOW 24VDC
Low 24VDC
UPS Batteries
Advisory only.
Occurs when battery voltage has
dropped to less than 22V. At this level,
batteries are 80% depleted. Normal
function until 21V.
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.
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. No additional
automatic function is possible, but
limited push button control is available
to 18V.
Refer to corrective
action above.
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.
Refer to corrective
action above.
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:
z
AC power has been shut off from
the operator for too long and the
batteries are drained.
z
Wiring problem.
z
Batteries no longer hold a charge.
z
Bad Smart DC Controller.
z
Bad transformer.
Refer to corrective
action above.
REFERENCE
MX3640-01 Rev. E ©2020
SwingSmart DC Programming and Operations
117