11
7. PROTECTION AND FAILURE
7.1 High Temperature Warning and Speed Reduction
In "Auto-Inverter/Manual-Inverter Mode" and "Timer mode" (except backwash/self-priming),
when the module temperature reaches the high temperature warning trigger threshold (81 ), it
enters the high temperature warning state; when the temperature drops to the high
temperature warning release threshold (78 ), the high temperature warning state is released.
The display area alternately displays AL01 and running speed or flow
1) If AL01 displayed for the first time, the running capacity will be automatically reduced as
below:
a)
If current operating capacity is higher than 85%, the running capacity will be automatically
reduced by 15%;
b)
If current operating capacity is higher than 70%, the running capacity will be automatically
reduced by 10%;
c)
If current operating capacity is lower than 70%, the running capacity will be automatically
reduced by 5%.
2) Suggestion for non-first displayed of AL01: check the module temperature every 2 minutes.
Compared with the temperature in the previous period, for every 1-degree Celsius increase,
the speed will decrease by 5%.
7.2 Undervoltage protection
When the device detects that the input voltage is less than 200V, the device will limit the
current running speed
When input voltage is less than or equal to 180V, the running capacity will be limited to 70%;
When the input voltage range is within 180V ~ 190V, the running capacity will be limited to
75%;
When the input voltage range is within 190V ~ 200V, the running capacity will be limited to
85%.
