ENGLISH
6 Low pressure potentiometer: it allows to set the low pressure
detection limit.
7 Too high pressure potentiometer: it allows to set the high pressure
alarm detection limit.
8 Too low pressure potentiometer: it allows to set the low pressure
alarm detection limit.
9 Current protection potentiometer: it allows to set the over current
protection limit of the motors.
10 Terminal blocks for connection of external devices (pressure
transmitter, float switch, fault relay, remote control).
11 Voltage selector switch: it allows to select the supply of the trans-
former according to the supply voltage (230V or 400V).
12 Primary protection fuses of the transformer:
• 2 Fuses 6.3 x 32mm 0.3 500V with 20k peak current for con-
trol box fitted.
13 Secondary protection fuses of the transformer:
• 2 Fuses 5 x 20mm 2 250V.
On front side - FIG. 2
1 Led power ON
2 Led dry-running
3 Display 3 x 7 segments
4 Led pump ON (one per pump)
5. Led pump fault (one per pump)
6 3-position rotary switch (one per pump): Hand – 0 (reset) – uto
7 Led filling ON
8 2-position rotary switch (Filling): Hand – uto
9 Led pressure too high fault
10 Led pressure too low fault
Inside the cover - FIG. 3
1 Control electronic unit: it manages the input and output signals
to ensure the operation and safety of the pumps.
2 Dipswitch to select pressure transmitter range: it allows to select
transmitter range.
3 Dipswitch insufficient pressure alarm: it allows to select the reac-
tion mode in case of too low alarm.
6.2 Functional description
6.2.1 Operating
-
n electronic pressure sensor supplies the real value of the system
pressure thanks a current signal 4-20m .
- If the output pressure by the system is lower than the setting pres-
sure defined by the potentiometer "low pressure setting" (FIG. 1,
pos. 6), the base load pump starts after 1 second.
- If the output pressure of the system is higher than the setting pres-
sure defined by the potentiometer "high pressure setting", (FIG. 1,
pos. 5) the base load stop after X seconds.
- When the pressure is between both pressures preset (high and low
pressure), the pumps remain in their operating mode.
- When pressure is too important the overflow valve opened and
water cames back into the tank.
Pump change
To get the same using and operating time of all the pumps, a pump
cycling for the starting order is defined after each stop of the main
pump.
Operating mode of pump
3-position rotary switch on the front part (FIG. 2, pos. 6) allows to
select 3 operating modes per pump.
Position OFF and reset:
- The pump is OFF, this position allows the reset of the pump alarms.
The reset can be a general or individual reset according to the
type of fault.
- For any fault on a line of pump, the reset will be operative as soon
as the switch is positioned on 0-reset.
- In case of a general fault (Err-LE , Err-Sen) the reset will be opera-
tive when all the switches of all the pump lines will be positioned
on 0-reset.
Position H ND:
- The pump is operating in continuous mode for a limited time-peri-
od of 15 seconds. fter this period the pump stops. It is then
required to switch back to the position OFF and again to H ND to
start the pump again in continuous operating mode. the magnet-
ic, thermal and lack of water protections remain operative in this
mode, other protections are deactivated.
Position UTO:
- ll control functions of the booster are operative.
Filling
To allow the filling with water of the tank an electrovalve and a float
switch can be connect to the control box When the float is off the
electrovalve open till 10 seconds after the recovery of the float
switch.
Operating mode of filling
2-position rotary switch on the front part (FIG. 2, pos. 8) allows to
select 2 operating modes for filling:
- Position H ND: The electrovalve is forced to operate.
- Position UTO: ll control functions of the filling are operative.
Too high pressure
The system is protected in case of too high pressure. If the output
pressure of the system is higher than the setting pressure defined by
the potentiometer "too high pressure setting ", (FIG. 1, pos. 7) the sys-
tem stop.
-
ctivation of the fault signal, fault signal for burner and the leds
too high pressure is ON (FIG. 2, pos. 9).
-
utomatic reset of the fault.
Too low pressure
The system is protected in case of too low pressure. If the output
pressure of the system is lower than the setting pressure defined by
the potentiometer "too low pressure setting", (FIG. 1, pos. 8) the sys-
tem can react in 2 way thanks to the dipswitch "selection too low
pressure" (FIG. 3, pos. 3).
The system can stop or continue to pumping, in 2 case.
-
ctivation of the fault signal, fault signal for burner and the leds
too low pressure is ON (FIG. 2, pos. 10).
-
utomatic reset of the fault.
Missing phase
The system is protected if one or more network phases are missing:
-
ctivation of the fault signal and all the leds pump fault.
- Hand reset of the fault by positioning all switches on 0 – reset.
Magnetic fault
magnetic circuit breaker protect motor and power cables
against short-circuit. On this fault type, the electronic switches
directly on another available pump:
-
ctivation of the fault signal and led pump fault.
- Hand reset of the fault (rotary switch on position 0 - reset).
Over current fault
The protection against motor overload is operating by the current
measurement in one phase.
When this current is higher than current protection setting, the elec-
tronic stop the pump in fault and switches directly on another avail-
able pump:
-
ctivation of the fault signal and led pump fault.
- Hand reset of the fault (rotary switch on position 0 - reset).
0.5 level is fixed for detect no load on the phase supervised. This
function allows to protect against overload on 2 other phases when
the phase supervised is cut:
-
ctivation of the fault signal and led pump fault.
- Hand reset of the fault (rotary switch on position 0 - reset).
Installation leakage detection (By over consumption of water)
When the frequency of opening ov electrovalve is too important,
the system consider a potential "leakage", all pumps are stopped.
-
ctivation of the fault signal.
- Err-LE mentioned on the display.
- Hand reset of the fault by positioning all the switches on 0 – reset.
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