Technical Data; Description And Function - Wilo CONTROL BOX CE+ WeH Installation And Operating Instructions Manual

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5. Technical data

5.1 Type key
Designation of the control box range
Number of pumps monitored
1 : 1 pump
2 : 2 pumps in cascade
Maximum pump power P2
5.2 Technical data
- Pressure transmitter (in bar): 0 – 6 ; 0 – 10
- Max. ambient temperature:
- Max. storage temperature:
- Three-phase supply voltage:
- Protection class:
- Nominal current:
5.3 Scope of Supply
• Control box CE+.
• Installation and operating instructions.

6. Description and function

6.1 Product description
Inside the control box
Fig. 1a, 1b
1 MAIN switch with power supply connection ter-
minals.
2 Safety transformer 230-400V / 24V.
3 Magnetic circuit-breaker.
4 Contactor with motor connection terminals .
5 High pressure potentiometer: it allows to set the
high pressure detection limit.
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.
10Terminal blocks for connection of external
devices (pressure transmitter, float switch, fault
relay, remote control).
11Voltage selector switch: it allows to select the
supply of the transformer according to the sup-
ply voltage (230V or 400V).
12Primary protection fuses of the transformer:
• 2 Fuses 6.3 x 32mm 0.3A 500V with 20kA peak
current for control box fitted.
13Secondary protection fuses of the transformer:
• 2 Fuses 5 x 20mm 2A 250V.
14
WILO CE+ WEV/WEH 1 x 15
Output: 4-20 mA
0 to +40°C
-10 to +55°C
50Hz 230/400V (±10%)
60Hz 220/380V (±10%)
IP 54
See type plate
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) – Auto
7 Led filling ON
8 2-position rotary switch (Filling) : Hand – Auto
9 Led pressure too high fault
10Led 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 reaction mode in case of too low
alarm.
6.2 Functional description
6.2.1 Operating
- An electronic pressure sensor supplies the real
value of the system pressure thanks a current
signal 4-20mA.
- If the output pressure by the system is lower
than the setting pressure defined by the poten-
tiometer "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 pressure defined by the poten-
tiometer "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
A 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-LEA, Err-Sen) the
reset will be operative when all the switches of
all the pump lines will be positioned on 0-reset.
WILO SE 09/2011