9
SKOPE OD260
Electronic Controller
Service Manual
Messages and Alarms
Controller
Display
The following table explains messages and alarms that the electronic
controller displays.
Alarms signal unexpected operational changes in the chiller and can be
muted by pressing the set (mute) button on the electronic controller
faceplate (see page 7).
Messages
Alarms
Display
Description
The chiller is in Normal mode and the electronic controller displays the
chiller temperature.
The chiller is in Cold Climate Protection mode. The chiller enters Cold
Climate Protection mode if the control probe detects the interior
temperature below -0.3°C (parameter St - CCt) for more than 30 minutes
(parameter CCd). The lights remain on and cannot be switched off (see
over page for more information).
Probe 1 error.
See parameters (page 12) for probe
function.
Probe 2 error.
Probe 3 error.
Low temperature alarm. An alarm sounds. The temperature inside
the chiller is too cold and an alarm sounds. The controller will
automatically reset the alarm once the temperature inside the chiller
raises.
High temperature alarm. An alarm sounds. The temperature inside
the chiller is too warm and an alarm sounds. The controller will
automatically reset the alarm once the temperature inside the chiller
drops.
Refrigeration system high
temperature
Pre-warning (auto reset)
1. Check refrigeration ventilation and
ensure the cabinet is installed in a
suitable location (see page 24).
2. To reset the ‘CHt’ alarm - unplug
the cabinet from the power supply
for 1 minute, then reconnect to
power supply.
Refrigeration system high
temperature
Shutdown (manual reset)
Low voltage alarm. An alarm sounds. The mains voltage is low. An
alarm sounds and the controller switches off the compressor. The
controller will automatically reset the alarm once the mains voltage
raises.
High voltage alarm. An alarm sounds. The mains voltage is high. An
alarm sounds and the controller switches off the compressor. The
controller will automatically reset the alarm once the mains voltage
drops.
Electronic controller fault.
