Installation And Electrical Connection - Wilo CONTROL BOX CE+ WeH Installation And Operating Instructions Manual

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pressure sensor 4-20mA.
2 Remote control (Ext. Off) : the remote control
(contact NC) allows the full stop of the system
pumps, an input ON/OFF is dedicated to this
input.
3 Lack of water (Lack of water) : a pressure switch
(contact NO) or a float switch protects the sys-
tem against lack of water, an input ON/OFF is
dedicated to this sensor.
This function is active whatever the operating
mode of the control box is.
6 seconds are needed to start again the system
after closing the contact (water back).
4 Fault signal (SSM): an output fitted with a
potential free contact (Normally Open; 250V ;
5A) allows the transfer of the system faults.
For control box with thermal relay
5 WSK Contact: contact WSK allows an external
connection of WSK (Klixon) from motor, an input
ON/OFF is dedicated to this input.
6 RUN Signal : an output fitted with a potential
free contact (Normally Open; 250V ; 5A) allows
the transfer of the system running.
6.2.3 Signalling - FIG. 2
System information
1 Power ON: mains voltage signalling (fixed yellow
LED).
2 Lack of water: lack of water signalling (fixed red
LED).
3 Display: Display 3x7 segments.
Permanent display of real pressure of discharge
network.
Blinking display when changing value settings:
- high pressure setting (PHi).
- low pressure setting (PLo).
- delay for base load pump stop (dtp).
- setting of the pressure sensor range (Sen).
Fault display:
- Err-LEA : pressure fault < 20% of the low pres-
sure setting.
- Err-Sen : pressure sensor cable cut.
Information per pump
4 Pump ON : pump operating indication (fixed
green LED in mode Auto and a blinking LED in
mode Hand).
5 Pump alarm: pump fault indication (red LED that
blinks 5 seconds during the fault detection and
then remains as fixed).
- No motor consumption.
- Magnetic circuit-breaking (motor short circuit).
- Over current protection (motor overload).
Information for filling
7 Filling ON : electrovalve operating indication
(fixed green LED in mode Auto and a blinking
LED in mode Hand).
Information for fault
9 Too high pressure: too high pressure fault indi-
cation.
10Too low pressure: too low pressure fault indica-
tion.
16

7. Installation and electrical connection

7.1 Installation
The control boxes are directly assembled on the
boosters.
7.2 Electrical connection
The electrical connection must be made accord-
ing to the local regulations by an electrical instal-
lation engineer approved by the local utility.
To make the electrical connection, the corre-
sponding installation and operating instructions
and attached electrical circuit diagrams must be
observed. General points to be considered are
listed below.
- the type of current and voltage of the mains
connection must comply with the details on the
type plate and the circuit diagram of the control
unit.
- as protection measure, the system must be
earthed according to the regulations (i.e. accord-
ing to the local regulations and circumstances) ;
the connections intended for this purpose are
identified accordingly (see circuit diagram).
Power supply cable
The electric supply cable shall be correctly
dimensioned according to the total system
power (see type plate).
Connecting the control box on a voltage differ-
ent from the one mentioned in the description
(see chapter 5.2. technical data) is not possible.
NOTE: for any further details an electric diagram
is available inside the control box.
CAUTION! Do not forget to connect the earth
terminal!
Pump supply cable
CAUTION! The installation and operating rules
in the instructions of the pumps shall be
observed!
The electric supply cable shall be correctly dimen-
sioned according to the total system power (see
type plate).
CAUTION! Do not forget to connect the earth
terminal!
Voltage selector - FIG. 5
CAUTION! Check the voltage selected before
first starting!
Position the voltage selection strap of the safety
transformer in relation to the supply voltage:
- supply 230V : strap positioned on mark 230V
- supply 400V : strap positioned on mark 400V.
Pressure sensor
Right connecting of the sensor to the terminals
(FIG. 4, pos. 1) according to the control box elec-
tric diagram:
- The sensor supply is connected to the terminal
+24V.
WILO SE 09/2011