12 Brief overview of operating states and alarms
ASTOPAD
®
Instructions for Use
53
Operating
state
Display
Start
LED
Output
A or B
Alarm
LED
Standby
LED
Acoustic
alarm
signal
Possible
reasons
Green
Yellow
Blue
Heating mode
Actual temperature
Set temperature
Warm-up phase
Actual temperature
Set temperature
A5
No applied part
connected or de-
fect sensor
Actual temperature
Set temperature
A6
No applied part
connected or de-
fect heating
Output heating
process
not started
L
Set temperature
Warm-up phase
and actual tem-
perature < 20°C
Actual temperature
Set temperature
Cooling phase
Mode
Increase/
decrease set
temperature
Actual temperature
Set temperature
New set temper-
ature not con-
firmed
Mode
Switching off
an output
Output heating
process
switched off
Actual temperature
Set temperature
Only one output
was started,
control unit is in
self-test
Switching off
the control unit
See Standby
mode
Off mode
Mains plug pulled
out
Storage/
transport
Mains plug dis-
connected and
Standby button
was pressed for
more than 3 sec.
(only for battery-
operated equip-
ment)
= LED off
=
LED on
=
LED flashes
11
6
10
9