Technical information

The alarm lights on the SC dryer control panel are associated
with the temperature, regeneration and air flow circuits in the
dryer.
A problem can trigger two types of alarms:
● Shut Down (red):
The dryer has automati-
cally shut down because
it detected a serious prob-
lem that could damage
your material or facility.
● Passive (yellow): The
dryer continues to oper-
ate, but warns of a prob-
lem that could prevent
correct drying of your
material. If ignored, this
problem could lead to a
shut-down condition.
The lights also can indicate multiple alarms.
When more than one yellow light is on or blinking, more than
one alarm condition occurred. The multiple alarms may indi-
cate problems that occurred at the same time, or a problem
that caused another problem to develop.
If this light is on:
Sensors near the process or regenera-
tion heaters detected abnormally high
temperature (solid light) or no air flow
(blinking light).
Temperatures in the process, or dry-
ing air, circuit are above or below
the setpoint alarm band.
The desiccant tank carousel did not
rotate or index correctly.
Air returning from the hopper is too
hot for desiccant to work at capacity.
Dew point will suffer. (blinking light)
Temperature sensors indicate the des-
iccant did not get hot enough to regen-
erate. (blinking light)
Pressure switches indicate reduced air
flow, probably caused by clogged fil-
ters or damaged hoses. (solid light)
UGD001/1196 SC Carousel Dehumidifying Dryer
TROUBLESHOOTING 6-3
EMERGENCY
STOP
OPERATION
188
188
SET TEMPERATURE
DRYING
START
STOP
ALARMS
POWER
!
SHUT
DOWN
TEMP. REGEN.
AIR
FLOW
CONAIR
FRANKLIN
ALARMS
!
SHUT
DOWN
TEMP. REGEN.
AIR
FLOW
!
SHUT
DOWN
TEMP. REGEN.
AIR
FLOW
!
SHUT
DOWN
TEMP. REGEN.
AIR
FLOW
!
SHUT
DOWN
TEMP. REGEN.
AIR
FLOW
!
SHUT
DOWN
TEMP. REGEN.
AIR
FLOW
!
SHUT
DOWN
TEMP. REGEN.
AIR
FLOW
!
SHUT
DOWN
TEMP. REGEN.
AIR
FLOW
Shut
down
alarms
Passive
alarms
UNDERSTANDING
THE
ALARM
LIGHTS
A
B
C
D
E
F