11
SKOPE B1200-2/B1200G-2
Operation
User Manual
Messages and
Alarms
The following table explains messages that the EMS Advanced controller
displays and related alarms. Alarms signal unexpected operational changes
in the chiller and stop when you disconnect the chiller from the power supply
at the isolating switch.
7. Push the
down
button to nagivate
to the parameter menu.
PS
will
show on the display.
8. Push the
set
button to enter the parameter menu.
9. Push and hold the
set
button to scroll through the parameter menu.
10. Release the set button when
PEr
appears on the display.
11. Push the
down
button to change
between perishable and non-
perishable mode:
0 = Non-perishable mode
1 = Perishable mode
12. Once the desired mode setting is flashing on the display, leave the controller
for 20-30 seconds to save the setting.
Non-perishable mode
Perishable mode
Display
Description
When the chiller is in stand-by mode, the EMS Advanced controller
displays three bars. This should not be displayed during normal
business hours. When the chiller becomes operational, the display
changes to the temperature.
Defrost cycle in progress.
Door Open. The EMS Advanced controller detects an open door
through a door switch in the door, and has found one open. If it stays
open over two minutes, an alarm sounds, but stops when the door
closes again.
If the door remains open five minutes, such as when loading product,
then the alarm stops and the EMS Advanced controller turns off the
compressor. The compressor starts again when the door closes.
High Temperature. The refrigeration system has overheated, and an
alarm sounds. The EMS Advanced controller turns off the system to
avoid damage.
Contact a service agent.
Probe Failure. A temperature sensor in the cabinet or condenser has
failed, and an alarm sounds. Contact a service agent.
Refrigeration System Failure. There is a refrigeration system failure,
and the EMS Advanced controller turns it off to avoid damage. An
alarm sounds when the system does not reach the preset temperature
within 72 hours.
Contact a service agent.
Supply High. The voltage from the main supply is too high, and an
alarm sounds. The controller turns off the electrical motors,
continuously monitors the voltage level, and restores power as soon
as the voltage returns to a safe level.
Freeze up protection. The cabinet temperature is too low. The
compressor stops running and the evaporator fans run continuously
until the cabinet temperature reaches an acceptable level.
Supply Low. The voltage from the main supply is too low, and an
alarm sounds. The controller turns off the electrical motors,
continuously monitors the voltage level, and restores power as soon
as the voltage returns to an appropriate level.
