Skope ReFlex Underbench - Faults and Alarms

16
Electronic Controller
Service Manual
SKOPE Reflex Underbench Fridge and Freezer
Faults and Alarms
If a fault occurs, it is logged, the Fault - Alarm indicator is lit on the controller faceplate, and a
message may be displayed. Faults do not affect product temperature, and do not require
action from the shop owner, unless they turn into an alarm.
If an alarm occurs, it is logged, the Fault - Alarm indicator is lit, and the alarm message is
displayed on the controller faceplate. Alarms may result in abnormal product temperature.
Some faults and alarms can be cleared by the shop owner, and others can only be cleared by
a service technician. Faults and alarms can be cleared by the shop owner by power-cycling
the cabinet. However the fault or alarm will only clear if the problem has been fixed. If the
problem still exists after a power-cycle, a service technician will need to fix the problem.
Table 4: Controller parameters
Model ID RF7.UBR.2.GD
RF7.UBR.2.SD RF7.UBR.2XL.SD
RF7.UBF.2.SD RF7.UBR.3.GD RF7.UBR.3.SD RF7.UBF.3.SD RF7.UBR.4.GD RF7.UBR.4.SD
RF7.UBR.2.D6
RF7.UBR.3.D9
Parameter numbers
610
✔
611
✔ ✔
612
✔ ✔
614
✔
615
✔ ✔
624
✔
625
✔
Table 5: Faults
Description Possible root cause Actions
Over-voltage protection
The maximum allowable mains supply
voltage has been exceeded. The
cabinet has temporarily shut down to
prevent damage and will restart once
the supply voltage decreases.
Should be a one-off. If it
continues, consider:
• poor line voltage
Test the incoming voltage to ensure it is correct. The
test voltage needs to be between 198 and 264 volts.
• If outside this, the controller will shut the system
down until the voltage returns to between these
measurements.
• If the voltage is correct and the controller is still
showing a fault, replace the controller.
• rural location
• voltage setting parameter
• Check the voltage parameter settings are between
198 and 264 volts. If this parameter is outside the
correct voltage, changing it may damage the
controller.
• controller
• The controller may be reading incorrectly and
need replacing.