Pb-Cc Pump Electrical Faults - Etatron PB Serie Manual Del Usuario

• Direct Functioning Mode
During production the pumps are programmed for a 4-20 mA direct functioning curve. The pump will start
every time the mA signal goes above 4 mA increasing the pulse frequency (and consequently the flow) pro-
portionally to the mA input signal up to maximum imp/min frequency available. E.G. Set 1 minimum signal
4 mA, minimum output. Set 2 maximum signal 20 mA, maximum output.
• Reverse Functioning Mode
Reverse functioning is when the mA signal increases and pump output proportionally decreases. Select the
maximum mA signal required with mode Set 1 (in relation to the min. output).
E.G. Set 1 maximum signal 20 mA, minimum output.
Set 2 minimum signal 4 mA, maximum output.
WARNING: Reverse functioning can only be selected when mode Set 1 is always higher than the mA signal.
Example n° 1: PUMP MODEL PB-CC, 8 L/H, 8 BAR, SIGNAL 4-20 mA.
Signal 4 mA = 0 l/h (0% pump flow rate)
Signal 12 mA = 4 l/h (50% pump flow rate)
Signal 20 mA = 8 l/h (100% pump flow rate)
Example n° 2: SAME MODEL, BUT WITH INVERSE SIGNAL: 20 - 4 mA
Signal 4 mA = 8 l/h (100% pump flow rate)
Signal 12 mA = 4 l/h (50% pump flow rate)
Signal 20 mA = 0 l/h (0% pump flow rate

9.7 - PB-CC PUMP ELECTRICAL FAULTS

GREEN LIGHT SWITCH (1) ON, RED L.E.D. (3) OFF; THE PUMP DOESN'T PULSE
(the display doesn't show mA value)
Unplug the connector F from the pump connector and check that there is mA signal. Bear in mind that if the mA sig-
nal is not right or absent doesn't depend from the pump. In contrary contact manufacturer customer service, dealer or
distributor.
IN CASE THE ADDITIVE LEVEL IS BELOW THE LEVEL PROBE AND THE LEVEL ALARM IS STILL OFF:
Check the level switch connection, short circuit pole connector (Section 3.2 pos. 2), in case the alarm is on, replace the
switch;
if the alarm is off, contact manufacturer customer service, dealer or distributor.
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PB-CC