
96
Alarm LED blink 1 sec. interval
Fault
code: Cause
Solution
301
One Phase is missing from power supply causing thermal
protection F4 Production pump is shutting down the pump.
•
Measure power supply, and check that all 3 phases are present all the
way to the contactor K1 input terminals.
302
1. Or, Thermal protection set to the wrong value.
2. K1 is defect. one phase is not let through contactor, causing
overload of F4.
1. Set F4 to same value as on motor label.
2. Reset F4 and reset the system.
•
Measure that all 3 phases are let through the contactor.
•
If not, replace contactor.
•
Mensurę U1-V1 / U1-W1 / V1-W1.
303
Production pump or pump wiring is defect.
•
Check wiring.
•
If wiring is ok, start system and measure motor Amp on all 3 phases.
•
Load should be the same on all 3, and below motor label value.
Alarm LED blink 0,1 sec. interval
Fault
code: Cause
Solution
401
External alarm in signal is activated.
•
External equipment connected to terminal 10 and + is disconnected.
Alarm - Transportation pump PM2
Fault
code: Cause
Solution
501
Permeate tank is empty, causing lack of supply water to the pump.
•
Check Ro control for alarm. Follow alarm description.
•
Reset alarm and wait with resetting the PM2 until water level is
above low level sensor.
•
Vent the air from the pump inlet.
•
Reset PM2.
•
Pressure should raise up to 3-3,5 bar.
502
Air in the pump housing.
•
See 501
503
Water output volume is too high or lower than the pump can
handle.
1. If water flow is less than 1 l/min for too long, the CM3-4 pump
will start and stop too often, and the pump motor internal
protection switch the pump off.
2. The output demand is higher than the RO system can produce
permeate water, so the pump will empty the tank
1. If pump doesn’t start when reset, or if pump starts and stop in
interval is less than 1 min. Add a hydrophore after the pump.
2. Follow guide for “water tank empty”
K1
F4
F4
201218