sema WPC 11+ Manuel utilisateur
Water Pump Controllers
11kw and above
V 2.6.4
WPC 11+
2
This manual applies to all Sema Water Pump Controllers above 7.5Kw
Sema Part Numbers
WPC3-11 11 Kw 400 Vac three phase controller c/w transducer
WPC3-15 15 Kw 400 Vac three phase controller c/w transducer
WPC3-22 22 Kw 400 Vac three phase controller c/w transducer
The three sizes listed above are ex -stock. Larger sizes are ordered to suit. There are
three delivery opons with the larger sizes 5 week (standard) 3 week and 1 week.
The part number for larger sized controllers is WPC3– followed by the size of the drive
in Kw. E.g. WPC3-45
Contact details
Sema Ltd
P.O. Box 374 Pukekohe 2340 New Zealand
www.sema.co.nz
inf[email protected]o.nz
+64 9 3580800
+64 9 3580700
Fax +64 9 8010031
Contact Maurice Coates on +64 27 9396240
maurice.coates@sema.co.nz
3
Index
Sema Part Numbers & Contact Details 2
Installaon Instrucons 4
Wiring 5-8
Emergency Mode 7
The Keypad 9
Inial Set-Up 10-11
The Running Screen 12
Changing Parameters 12-13
Faults 14
Supplier Declaraon of Conformity 15
4
Installing
Mounng
The 11, 15 and 22Kw drives share the same dimensions:
Please ask Sema for details on the larger units:
The controller must be mounted vercally with sucient clearance above and below the drive to allow air to circulate freely.
The operang temperature range is –10 °C to 40°C.
Front Rear Side
110mm
171mm
430mm
8.00mm
14.00mm
450mm
252mm
5
Wiring
All wiring must be performed by a suitably qualified person who is familiar with, and ensures compliance
with, the appropriate Electrical Wiring Regulations.
There is no need to use screened mains cabling.
EMC screened cable must be used to connect the controller and motor. An EMC gland must be fitted to
the motor and the preinstalled EMC Gland must be used in the controller.
All wiring that exits the controller including low voltage control cabling must be screened.
The picture above shows the control terminals of the WPC. Please note that, on some models, terminals
19 to 28 are not installed as they have no function. See page 8. The wiring and links shown in the picture
are installed by Sema and are necessary for the correct functioning of the controller. Please do not re-
move or alter any of these.
While there are other optional components
which may be wired to these terminals (see
page 8) the only additional piece of wiring
which is essential to make the unit operate is
from the transducer. Connect this as follows:
RED wire to terminal 1.
BLACK (in some cables this may be blue) wire
to terminal 6.
Green/Yellow striped (in some cables this may
have a clear covering) wire to terminal 7 or 9
6
Three Glands are ed to the boom of the VSD.
25mm Gland
for the Main
supply cable
‘25mm Gland
with a brushed
locknut ed.
This is meant for
the motor cable
20mm Gland for the
Transducer cable and
the controller commu-
nicaon cable
The motor gland has a brushed locknut ed to it (see below). Somemes well intenoned installers remove this gland and
locknut and replace it with an EMC gland. Please note that the brushed locknut has an equal or greater performance to an
EMC gland and that there is nothing to be gained by replacing it. To terminate the screen of the motor cable to the brushed
locknut simply strip back enough of the plasc sheath so that the screen can contact the brush before inserng the cable
through the gland. This will make an extremely eecve EMC earthing connecon and also maintain the units waterproong
rang through the use of an IP68 gland.
7
Power and Motor Connecons
To reverse the direcon of rotaon of the motor change over any two of the three motor
wires (U,V and W)
Connect the main
supply wires to
L1, L2 and L3
Connect the mo-
tor wires to U, V
and W
Connect the
earth wires to
the earth screws
Emergency Mode: If the Transducer fails the WPC will stop. This is done to prevent possible over pres-
surising of the system. Because a Transducer isn’t a device which is readily available in all parts of the world an
Emergency Mode has been provided to enable the unit to run from a pressure switch.
To acvate Emergency Mode:
1. Turn o the power and wait unl the screen is dark .
2. Connect a Pressure Switch between terminals 1 & 2 (It doesn’t maer whether you leave the pre-installed
white wire in terminal 2 or not.)
3. Turn on the power and the unit will now detect the Pressure Switch, it will respond by acvang its emergen-
cy mode and act as an on/o controller in response to the input from the pressure switch.
8
Descripon of control terminals
Terminal Signal Description
1+24VDC The RED Wire from the transducer is connected here.
The Commons for the OPTIONAL emergency pressure switch (terminal 2) , the
OPTIONAL pressure selector switch (terminal 3) and the OPTIONAL remote
interlock are connected here.
2EMERGENCY PRESSURE
SWITCH
This terminal is used by the Sema controller as a safety shut down. Do not dis-
connect the pre-installed wire unless the transducer has failed and you wish to
connect a Pressure switch to run the WPC in emergency mode. In this case the
pressure switch is connected between terminals 1 and 2. The pre-installed wire
can then either be removed or le in place.
3Pressure selector switch When this input is o Desired Pressure 1 is used, when it is on Desired Pressure
2 is used.
4External Interlock As supplied by Sema there is a link between terminal 1 and terminal 4. Oponal
remote interlocks can be installed in place of this link. When the connecon be-
tween terminal 1 and terminal 4 is open the WPC will stop.
5No user connection This terminal is not used by the Sema controller. Do not connect.
64 to 20 ma analogue The BLACK (please note that, in some cables, this wire may be BLUE ) transducer
70V The Yellow/Green or CLEAR transducer wire is connected here. This is the screen.
8No User connection
90V
10 No User connection
11 No User connection
12 No User connection
13 No User connection
14 Relay 1 Common
15 Relay 1 N.O. Relay 1 turns on when the controller has a fault
16 Relay 1 N.C
17 Relay 2 Common Relay 2 turns on when the unit is running
18 Relay 2 N.O.
9
Seng up and Operaon
Using the keypad
Descripon:
ESC The escape key funcons in the same manner as the escape key on a computer it allows you to exit without sav-
ing parameters and also allows you to go back a step when going through the inial setup roune.
UP ARROW Increases the digit immediately above the cursor when entering parameter values and scrolls
through a menu list.
ENTER Accepts and saves a value which has been entered. Press and hold for 3 seconds to access the Funcon
menu from the main running screen.
MAN Short for Manual, holding this buon down will gradually accelerate the pump to full speed
LEFT ARROW Moves the cursor one posion to the le when entering parameter values.
DOWN ARROW Decreases the digit immediately above the cursor when entering parameter values and scrolls
through a menu list.
RIGHT ARROW Moves the cursor one posion to the Right when entering parameter values.
ON OFF Press once to turn the controller o, press again to turn the controller on. Aer power up the controller
will always start in the ‘on’ state.
Hint: When entering numbers use the le and right arrow keys to move the cursor and the up and down arrow keys to
change the number above the cursor.
10
Inial Set Up
A few seconds aer powering the unit up for the rst me, or aer re-inialising it, the screen below will be displayed.
The only valid key which can be pressed is the ENTER key and the only way of stopping this screen from appearing is to com-
plete the setup roune.
Please note that, if you make a mistake and enter the wrong value in one of the steps, the ESC key can be used to go back a
step. You can go back as many steps as you like even right to the start of the setup roune if necessary.
The sengs that you enter are only saved aer you complete the last step so, providing you haven’t completed the nal step,
you can always start setup again by turning o the power and then powering up again.
The controller can also be re-inialised. See the ’Changing Parameters’ secon for instrucons on how to do this.
There are 11 steps in the setup roune and they are as follows:-
1. ENTER THE MOTORS NAMEPLATE VOLTAGE: Use the arrow keys to alter the value.
2. ENTER THE MOTORS NAMEPLATE CURRENT: Use the arrow keys to alter the value.
3. ENTER THE MOTORS NAMEPLATE RPM: Use the arrow keys to alter the value.
4. ENTER THE MOTORS MAXIMUM SPEED: Here you can enter the maximum operang RPM of the
motor. This gure may be adjusted up to double the motors rated nameplate RPM but please note that very few pumps can be
operated at this sort of speed. If you are in doubt about the maximum speed that your pump can be operated at then please
set this gure to the same value as the Motors Rated Nameplate speed. Note that this is the value that appears by default.
5. ENTER THE MOTORS MINIMUM SPEED: This gure is also determined by the minimum speed that
your pump can successfully run at. If you are in doubt then the default gure can safely be used.
6. MOTOR DIRECTION CHECK: Pressing the up arrow will cause the motor to run at low speed for a couple of
seconds so that you can check that the direcon of rotaon is correct. If it isn’t then turn o the power and, aer the control-
ler screen goes completely dark, remove the controller terminal cover and swap any two wires connected to U,V and W. Once
this is done turn the power on again and you will be bought back to this step, all of your previous programming will have been
saved. Conrm that the direcon is now correct and then press ENTER to connue.
Table des matières
Autres manuels sema Contrôleurs
