Table 22. Smart DC Controller - Troubleshooting
Display
Condition
Description
Alert, Error or
Fault
Possible Causes
Solutions
ALERT 16
COM BUS
ERROR
Smart DC
Controller
has detected
an internal
communications
error.
Several possible causes:
z
Excessive electrical noise.
z
Lack of earth grounding.
z
Internal problem on Smart DC
Controller.
1.
Determine and
remedy source of
electrical noise.
2.
Install a ground
rod.
3.
Replace Smart DC
Controller.
ALERT 17
BAD COIN
BATTERY
S m a l l b a t t e r y
o n S m a r t D C
C o n t r o l l e r i s
loose or needs
replacing.
Coin battery is loose or dead.
1.
Verify that battery
is properly seated.
2.
Replace coin
battery.
3.
Restore power.
4.
Press RESET
button.
ALERT 18
CHANGE
BATTERY
Smart DC
Controller has
detected that
24VDC UPS
batteries need to
be replaced.
Batteries are not taking a charge
properly.
Buzzer will chirp every
minute until UPS
batteries are replaced.
ALERT 19
FALSE
SLOWDOWN
Not used with
DC operators
Not used with DC operators
Not used with DC
operators
ALERT 20
LI BLOCK OPEN
An interlock contact is closed,
indicating that the gate latch (lock)
is engaged, preventing the operator
from starting.
Check the interlock
terminal and wiring.
FAULT 1
MOTOR RUN
TIME
The Smart DC
Controller has
detected the
motor is on
longer than the
maximum run
time selected.
z
Broken drive belt
z
Broken limit plate
z
Taper clamp slipping (SwingSmart
DC)
1.
Check and replace
drive belt.
2.
Increase Max
Run Timer in the
Installer Menu.
3.
Tighten taper
clamp and check
limit plate. Replace
as required.
ALERT 21
DRIVE TRIP
Not used with
DC operators
Not used with DC operators
Not used with DC
operators
REFERENCE
129
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SWINGSMART DC PROGRAMMING AND OPERATIONS MANUAL
MX3640-01 REV. D ©2018
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