Chapter 8 Alarm Handling - Regin OPTIGO OP10 User Manual

Chapter 8 Alarm handling

If there are any active, unacknowledged alarms, the alarm indicator in the Base Display will
light up and start flashing. If DO1 is configured as alarm output, it will be activated.
The alarm handling menus are accessed from the Base Display by a click on the encoder
knob. The first alarm is displayed.
There are four different alarm types:
AL1 Frost protection alarm. The frost protection temperature has fallen below +7°C
AL2 High temperature limit switch activated.
AL3 Fan indication alarm. Either there is no fan indication input on AI1 when the fan
start output on DO3 is active the opposite, AI1 is active although there is no fan start
output on DO3.
AL4 Sensor error. A sensor input is either short circuited or open circuit.
A symbol shows which type of alarm it is. Snowflake for frost protection, sun for high
temperature limit switch, a fan for fan indicator and the input symbol for sensor error.
If there are multiple alarms, twist the knob to scroll through them. To acknowledge an alarm,
click the knob to enter change mode. Then twist it to change No to Yes and click to
acknowledge. An alarm will remain on the alarm list until it is both acknowledged and has
reset. The alarm indicator in the Base Display will remain lit until the alarm list is empty.
However, it will only continue to flash as long as there are unacknowledged alarms in the
list. Thereafter it will remain steadily lit until all alarms have reset. If DO1 is used as alarm
output it will remain activated al long as there are unacknowledged alarms in the alarm list.
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