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Table 16. Smart DC Controller - Troubleshooting
Display
Condition
Description
Alert, Error or
Fault
Possible Causes
Solutions
NO AC POWER
N o A C I n p u t
Power Advisory
only.
AC power is shut off at source (breaker)
or is not connected. AC power switch
on operator (lower rocker switch) is
turned off, or circuit breaker on the
operator has tripped.
1.
Turn AC power
switch on or
connect power to
operator.
2.
Reset operator
circuit breaker or
connect power to
AC switch.
3.
Reset circuit breaker
at electrical panel.
4.
Have a licensed
electrician check
wiring.
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.
ACCESSORY CONNECTIONS
MX4505 Rev. E ©2020
SlideSmart DC Programming and Operations
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