Wilo Control SC2.0-Booster User manual
Pioneering for You
·
Wilo-Control SC2.0-Booster
4255846 • Ed.01/2023-09
en Installation and operating instructions
en
Installation and operating instructions • Wilo-Control SC2.0-Booster • Ed.01/2023-09 3
Table of contents
1 General information...................................................................4
1.1 About these instructions ..................................................... 4
1.2 Copyright ............................................................................... 4
1.3 Subject to change................................................................. 4
1.4 Exclusion from warranty and liability.................................4
2 Safety...........................................................................................4
2.1 Identification of safety instructions................................... 4
2.2 Personnel qualifications....................................................... 5
2.3 Electrical work .......................................................................6
2.4 Installing/dismantling........................................................... 6
2.5 Maintenance tasks................................................................ 6
2.6 Operator responsibilities...................................................... 7
2.7 Improper use.......................................................................... 7
3 Application/use...........................................................................7
3.1 Intended use.......................................................................... 7
4 Transportation and storage.......................................................7
4.1 Delivery................................................................................... 7
4.2 Transport................................................................................ 7
4.3 Storage ................................................................................... 8
5 Product description....................................................................8
5.1 Set-up..................................................................................... 8
5.2 Functional principle ..............................................................9
5.3 Operating modes.................................................................10
5.4 Technical data .....................................................................18
5.5 Type key...............................................................................18
5.6 Scope of delivery.................................................................18
5.7 Accessories ..........................................................................18
6 Installation and electrical connection....................................18
6.1 Installation types.................................................................19
6.2 Electrical connection..........................................................19
7 Operation ..................................................................................24
7.1 Operating elements............................................................24
7.2 Menu control........................................................................26
7.3 User levels............................................................................49
8 Commissioning .........................................................................49
8.1 Preparatory work.................................................................49
8.2 Factory setting ....................................................................49
8.3 Motor direction of rotation................................................49
8.4 Motor protection.................................................................50
8.5 Signal transmitters and optional modules.......................50
9 Shut-down ................................................................................50
9.1 Personnel qualifications.....................................................50
9.2 Operator responsibilities....................................................50
9.3 Decommissioning................................................................50
10 Maintenance..............................................................................51
10.1 Maintenance tasks..............................................................51
11 Faults, causes and remedies....................................................51
11.1 Fault indication....................................................................52
11.2 Fault memory.......................................................................52
11.3 Error codes ...........................................................................52
12 Spare parts.................................................................................53
13 Disposal......................................................................................53
13.1 Information on the collection of used electrical and elec-
tronic products .....................................................................53
14 Appendix....................................................................................53
14.1 System impedances.............................................................53
14.2 ModBus: Data types .............................................................55
14.3 ModBus: Parameter overview.............................................55
en
4 Installation and operating instructions • Wilo-Control SC2.0-Booster • Ed.01/2023-09
1 General information
1.1 About these instructions These instructions form part of the product. Compliance with the instructions is essential
for correct handling and use:
•Read the instructions carefully before all activities.
•Keep the instructions in an accessible place at all times.
•Observe all product specifications.
•Observe the markings on the product.
The language of the original operating instructions is German. All other languages of these
instructions are translations of the original operating instructions.
1.2 Copyright WILO SE ©
The reproduction, distribution and utilisation of this document in addition to communica-
tion of its contents to others without express authorisation is prohibited. Offenders will be
held liable for payment of damages. All rights reserved.
1.3 Subject to change Wilo shall reserve the right to change the listed data without notice and shall not be liable
for technical inaccuracies and/or omissions. The illustrations used may differ from the ori-
ginal and are intended as an exemplary representation of the product.
1.4 Exclusion from warranty and liabil-
ity
Wilo shall specifically not assume any warranty or liability in the following cases:
•Inadequate configuration due to inadequate or incorrect instructions by the operator or
the client
•Non-compliance with these instructions
•Improper use
•Incorrect storage or transport
•Incorrect installation or dismantling
•Insufficient maintenance
•Unauthorised repairs
•Inadequate construction site
•Chemical, electrical or electrochemical influences
•Wear
2 Safety This chapter contains basic information for the individual phases
of the life cycle. Failure to observe this information carries the
following risks:
•Risk of personal injury from electrical, electromagnetic or
mechanical influences
•Environmental damage from discharge of hazardous sub-
stances
•Damage to property
•Failure of important functions
Failure to observe the information contained herein will result in
the loss of claims for damages.
The instructions and safety instructions in the other chapters
must also be observed!
2.1 Identification of safety
instructions
These installation and operating instructions set out safety in-
structions for preventing personal injury and damage to property,
which are displayed in different ways:
•Safety instructions relating to personal injury start with a signal
word and are preceded by a corresponding symbol.
en
Installation and operating instructions • Wilo-Control SC2.0-Booster • Ed.01/2023-09 5
DANGER
Type and source of the danger!
Consequences of the danger and instructions for avoidance.
•Safety instructions relating to property damage start with a
signal word and are displayed without a symbol.
CAUTION
Type and source of the danger!
Consequences or information.
Signal words
•Danger!
Failure to observe safety instructions will result in serious injury
or death!
•Warning!
Failure to follow instructions can lead to (serious) injury!
•Caution!
Failure to follow instructions can lead to property damage and
possible total loss.
•Notice!
Useful information on handling the product
Symbols
These instructions use the following symbols:
General danger symbol
Danger caused by electric voltage
Notices
Notices on the product
Comply with all notices and marks on the product and keep them
in legible condition.
•Symbol for direction of rotation/flow
•Mark for connections
•Rating plate
•Warning stickers
2.2 Personnel qualifications •Personnel have been instructed on locally applicable regula-
tions governing accident prevention.
•Personnel have read and understood the installation and oper-
ating instructions.
•Electrical work: qualified electrician
Person with appropriate technical training, knowledge and ex-
perience who can identify and prevent electrical hazards.
•Installation/dismantling work: qualified electrician
en
6 Installation and operating instructions • Wilo-Control SC2.0-Booster • Ed.01/2023-09
Knowledge regarding tools and fixation material for various
structures
•Operation/control: Operating personnel, instructed in the func-
tioning of the complete system
2.3 Electrical work •Electrical work must be carried out by a qualified electrician.
•Before commencing work, disconnect the product from the
mains and safeguard it from being switched on again.
•Observe applicable local regulations when connecting to the
mains power supply.
•Adhere to the requirements of the local energy supply com-
pany.
•Earth the product.
•Observe technical information.
•Replace a defective connection cable immediately.
2.4 Installing/dismantling •Wear protective equipment:
–Safety shoes
–Safety gloves for protection against cuts
–Safety helmet (when using lifting equipment)
•Locally applicable laws and regulations on work safety and ac-
cident prevention must be complied with.
•The procedure described in the installation and operating in-
structions for shutting down the product/unit must be strictly
observed.
•All work on the product/unit may only be carried out when it is
at a standstill.
•Disconnect the device from the mains and secure it against be-
ing switched on again without authorisation.
2.5 Maintenance tasks •Wear protective equipment:
–Sealed safety glasses
–Safety shoes
–Safety gloves for protection against cuts
•Locally applicable laws and regulations on work safety and ac-
cident prevention must be complied with.
•The procedure described in the installation and operating in-
structions for shutting down the product/unit must be strictly
observed.
•Only perform the maintenance work described in these installa-
tion and operating instructions.
•Only original parts from the manufacturer may be used for
maintenance and repairs. The use of any non-original parts re-
leases the manufacturer from any liability.
•Disconnect the device from the mains and secure it against be-
ing switched on again without authorisation.
•All rotating parts must stop.
en
Installation and operating instructions • Wilo-Control SC2.0-Booster • Ed.01/2023-09 7
•Store tools at the designated locations.
•After completing work, reattach all safety and monitoring
devices and check that they function properly.
2.6 Operator responsibilities •Provide installation and operating instructions in a language
which the personnel can understand.
•Make sure that the personnel has had the corresponding train-
ing for the specified work.
•Safety and information signs mounted on the device must al-
ways be legible.
•Train the personnel on how the system operates.
•Eliminate risk from electrical current.
•To ensure safe working practice, define personnel responsibilit-
ies.
Children and persons younger than 16years or with reduced
physical, sensory or mental capacities or limited experience are
prohibited from handling the product! A technician must super-
vise persons younger than 18years!
2.7 Improper use •The operational reliability of the supplied product is only guar-
anteed for intended use in accordance with chapter4 of the in-
stallation and operating instructions.
•Comply with the limits specified in the catalogue/data sheet.
3 Application/use
3.1 Intended use The control device is used for automatic, convenient control of pressure-boosting systems
(single- and multi-pump systems):
•Control SC-Booster: uncontrolled fixed-speed pumps
•Control SCe-Booster: electronically controlled variable-speed pumps
The field of application is water supply in residential towers, hotels, hospitals, offices and
industrial buildings. When used in conjunction with suitable pressure transmitters, the
pumps offer low-noise and energy-saving operation. The performance of the pumps is ad-
apted to the constantly changing requirements in the water supply system.
Intended use also includes compliance with this manual. Any other use is regarded as non-
compliant with the intended use.
4 Transportation and storage
4.1 Delivery •After delivery, check product and packaging for defects (damage, completeness).
•Defects must be noted on the freight documentation.
•Defects must be notified to the transport company or the manufacturer on the day of
receipt of shipment. Claims cannot be asserted if the notification of defects takes place
at a later date.
4.2 Transport
CAUTION
Damage to property due to wet packaging!
Wet packaging may tear. If unprotected, the product may fall on the
ground and be irreparably damaged.
• Carefully lift wet packaging and replace it immediately!
•Clean control device.
•Close housing apertures, ensuring they are sealed watertight.
en
8 Installation and operating instructions • Wilo-Control SC2.0-Booster • Ed.01/2023-09
•Impact-resistant and watertight packaging.
4.3 Storage
CAUTION
Damage to property due to incorrect storage!
Moisture and certain temperatures can damage the product.
• Protect the product against moisture and mechanical damage.
• Avoid temperatures outside the range of -10°C to +50°C.
5 Product description
5.1 Set-up The set-up of the control device is dependent on the performance of the pumps that are to
be connected as well as the version.
Fig.1: SCe
Fig.2: SC direct starting
en
Installation and operating instructions • Wilo-Control SC2.0-Booster • Ed.01/2023-09 9
Fig.3: SC star-delta starting
1 Main switch
2 Human-Machine Interface (HMI)
3 Base board
4 Fuse protection of drives
5 Contactors/contactor combinations
The control device consists of the following main components:
•Main switch: Switches the control device on/off (item1)
•Human-machine interface (HMI): LCD display for viewing operating data (see menus),
LEDs for displaying the operating status (operation/fault), operating button for menu
selection and parameter input (item2)
•Base board: Printed circuit board with microcontroller (item3)
•Fuse protection of drives: Protection of the pump motors
In the DOL version: Motor protection switch
In the SCe version: Circuit breaker for the fuse for the pump mains supply cable (item4)
•Contactors/contactor combinations: Contactors for switching on the pumps. In SD (star-
delta starting) version control devices, including the thermal tripping devices for over-
current protection (default value: 0.58×IN) and the time relay for the star-delta
switchover (item5)
5.2 Functional principle The Smart control system, controlled by a microcontroller, is used to control and regulate
pressure-boosting systems with up to 4 single pumps. The pressure of a system is meas-
ured with corresponding pressure transmitters and controlled in a load-sensitive way.
SCe
Each pump has an integrated frequency converter. In the constant pressure control mode
(p-c), only the base-load pump carries out the speed control. In the variable pressure (p-v)
control mode, all pumps are controlled and run at the same speed, except when a pump
starts or stops.
SC
All pumps are fixed speed pumps. The pressure control is a 2-point control. Non-controlled
peak-load pumps are switched on and off automatically depending on the load require-
ment.
en
10 Installation and operating instructions • Wilo-Control SC2.0-Booster • Ed.01/2023-09
5.3 Operating modes
5.3.1 Normal operation with fixed speed
pumps – SC
Fig.4: Normal operation of control device with fixed speed pumps
2 Activation threshold of the base-load pump
3 Deactivation threshold of the base-load pump
4 Activation threshold of the peak-load pumps
5 Deactivation threshold of the peak-load pumps
An electronic pressure transmitter supplies the actual pressure value as a 4…20mA or
0…20mA current signal.
•Set measurement range: System→Sensors→Discharge side measurement range
•Set sensor type: System→Sensors→Discharge side sensor type
There is no option for load-sensitive speed adaptation of the base-load pump, as a result of
which the system works as a two-position controller and keeps the pressure in the range
between the activation and deactivation thresholds.
•Control setting→Setpoints→Switching on and off of BLP
•Control setting→Setpoints→Switching on and off of PLP
•Set the activation and deactivation thresholds relative to the reference setpoint (Control
settings→Setpoints→Setpoints1).
If there is no “external off” message and no fault, and the drives as well as the automatic
system are activated, the base-load pump starts when the activation threshold (2) is fallen
below. If the power requirement cannot be covered by this pump, a peak-load pump or, if
the demand continues to increase, further peak-load pumps (activation threshold (4)) are
switched on.
•Control setting→Standby→Drives, automatic
•Set the activation threshold individually for each pump: Control setting→Setpoint-
s→Switching on and off of PLP
When the requirement drops to such an extent that a peak-load pump is no longer required
to meet the requirement, the peak-load pump switches off (deactivation threshold: (5); in-
dividually adjustable per pump).
•Set the deactivation threshold individually for each pump: Control setting→Setpoint-
s→Switching on and off of PLP
If no peak-load pump is active, the base-load pump switches off when the deactivation
threshold (3) is exceeded and after the delay time has elapsed.
•Set the deactivation threshold: Control setting→Setpoints→Switching on and off of BLP
•Set the delay time: Control setting→Setpoints→Delays
Delay times can be set for activation and deactivation of the peak-load pump.
•Set the delay times: Control setting→Setpoints→Delays
5.3.2 Normal operation with speed con-
trol – SCe
With the SCe version, you can choose between 2 control modes:
•p-c
en
Installation and operating instructions • Wilo-Control SC2.0-Booster • Ed.01/2023-09 11
•p-v
Control mode p-c, Vario mode
•Set Vario mode: Control settings→Control→BLP selection diagram
An electronic pressure transmitter supplies the actual pressure value as a 4…20mA or
0…20mA current signal. Then the controller maintains the system pressure at a constant
level by means of the comparison of the setpoint/actual value.
•Set the measurement range of the pressure sensor: System→Sensors→Discharge side
measurement range
•Set sensor type: System→Sensors→Discharge side sensor type
•Set reference setpoint (1): Control settings→Setpoints→Setpoints 1
If there is no “external off” message and no fault, and the drives as well as the automatic
system are activated, the base-load pump starts when the activation threshold (2) is fallen
below.
•Control setting→Standby→Drives, automatic
•Set the activation threshold individually for each pump: Control setting→Setpoint-
s→Switching on and off of BLP
Fig.5: Starting the load-sensitive speed-controlled base-load pump
If the power requirement can no longer be met by this pump with the set speed, another
pump starts when the power falls below the reference setpoint (1) and takes over the
speed control.
•Set speed: System→Frequency converter→Limits
Fig.6: Starting the second pump
en
12 Installation and operating instructions • Wilo-Control SC2.0-Booster • Ed.01/2023-09
The previous base-load pump continues to run at max. speed as a peak-load pump. This
procedure is repeated at increasing load until the maximum number of pumps is reached
(here: 3 pumps).
Fig.7: Starting the third pump
1 Reference setpoint of system pressure
2 Activation threshold of the base-load pump
3 Deactivation threshold of the base-load pump
4 Activation threshold of the peak-load pumps
5 Deactivation threshold of the peak-load pumps
6 Speed setpoint of the base-load pump
If the requirement decreases, the controlling pump is switched off when the set speed is
reached and the reference setpoint is exceeded at the same time. A peak-load pump that
was previously acting takes over the control.
•Set speed: System→Frequency converter→Limits
If no peak-load pump is active anymore, the base-load pump switches off when the deac-
tivation threshold (3) is exceeded and after the delay time has elapsed, if necessary, after a
zero-flow test.
•Set the deactivation threshold: Control setting→Setpoints→Switching on and off of BLP
•Set the delay time: Control setting→Setpoints→Delays
Delay times can be set for activation and deactivation of the peak-load pump.
•Set the delay times: Control setting→Setpoints→Delays
Control mode p-c, cascade mode
In the base-load pump mode “cascade”, the base-load pump is not changed when the
peak-load pump is switched on or off and only the speed is adjusted accordingly.
•Set mode: Control settings→Control→BLP selection diagram
p-v control mode
An electronic pressure transmitter supplies the actual pressure value as a 4…20mA or
0…20mA current signal. Then the control device maintains the system pressure at a con-
stant level by means of the comparison of the setpoint/actual value.
•Set measurement range: System→Sensors→Discharge side measurement range
•Set sensor type: System→Sensors→Discharge side sensor type
The setpoint is dependent on the current volume flow and is between the setpoint at zero
flow (2) and the reference setpoint (1) when the volume flow of the unit is at a maximum
(without standby pump) (3).
•Control settings→Setpoints→Setpoints 1
en
Installation and operating instructions • Wilo-Control SC2.0-Booster • Ed.01/2023-09 13
Fig.8: Setpoint depending on the volume flow
1 Reference setpoint
2 Setpoint in the event of zero flow
3 Maximum volume flow per unit
Please see Fig.6 for typical default values for the setpoint at zero flow.
Procedure (example: SiBoost Smart 3Helix VE604):
•Based on the reference setpoint (1), the curve to be used is selected (here: 5bar).
•The point of intersection between this pump curve and the maximum volume flow of
the system (2) (here 3x6=18m³/h) is used to determine the relative setpoint at zero
flow (3) (here 87.5%). Link not working: See also https://app.wilo.com/Standalone/
Einstellungsoptimierer-SiBoost/Default.aspx?lang=en-GB.
Fig.9: Typical default values for the setpoint at zero flow
1 Reference setpoint
2 Maximum volume flow per unit
3 Relative setpoint in the event of zero flow
NOTICE
To prevent an inadequate supply, the setpoint at zero flow must be
greater than the geodesic head of the highest tap.
en
14 Installation and operating instructions • Wilo-Control SC2.0-Booster • Ed.01/2023-09
If there is no “external off” message and no fault, and the drives and the automatic system
are activated, one or more speed-controlled pumps (Fig. 7) start when the value falls below
the activation threshold (2). The pumps run at a common, synchronous speed. Only pumps
that are switching on or off may briefly run at a different speed.
•Control setting→Standby→Drives, automatic
•Set the activation threshold individually for each pump: Control setting→Setpoint-
s→Switching on and off of BLP
Depending on the hydraulic output requirements of the system, the number of running
pumps varies and their speed is controlled so that the p-v setpoint curve (1) is followed.
The control device minimises the energy demand of the unit.
If only one pump is still active and the demand continues to drop, the base-load pump
switches off when the deactivation threshold (3) is exceeded and after the delay time has
elapsed, if necessary, after a zero-flow test.
•Set the activation threshold individually for each pump: Control setting→Setpoint-
s→Switching on and off of BLP
•Set the delay times: Control setting→Setpoints→Delays
Fig.10: p-v setpoint curve
1 p-v setpoint curve
2 Activation threshold
3 Deactivation threshold
Delay times can be set for activation and deactivation of the peak-load pump.
•Set the delay times: Control setting→Setpoints→Delays
5.3.3 Further operating modes Zero-flow test (only SCe version)
When operating only one pump in the lower frequency range and with constant pressure, a
zero-flow test is carried out cyclically. This briefly increases the setpoint to a value above
the deactivation threshold of the base-load pump. If the pressure does not drop again after
the higher setpoint has been reset, there is a zero-flow and the base-load pump is
switched off after the follow-up time has elapsed.
•Set the deactivation threshold: Control setting→Setpoints→Switching on and off of BLP
•Set the delay time: Control setting→Setpoints→Delays
In the p-v control mode, a potential zero flow reduction is tested by reducing the setpoint.
If the actual value drops to the new setpoint during the reduction, there is no zero-flow.
The parameters of the zero-flow test are preset at the factory and can only be changed by
Wilo customer service.
Cyclical pump change
In order to ensure that the load is distributed as evenly as possible between all pumps and
to balance the running times of the pumps, various pump cycling mechanisms can be used.
•The base-load pump is cycled for each requirement (after deactivation of all pumps).
en
Installation and operating instructions • Wilo-Control SC2.0-Booster • Ed.01/2023-09 15
•A cyclical change of the base-load pump is activated in the factory and can be deactiv-
ated in menu (Control settings→Additional settings→Pump change). The running time
between 2 change procedures is adjustable (Control settings→Additional setting-
s→Pump change).
Standby pump
One or more pump(s) can be defined as a standby pump. Activating this operating mode
results in these pump(s) not being controlled in normal operation. If a pump fails due to a
fault, the standby pump(s) is/are started. However, the standby pumps are subject to
standstill monitoring and are included in the test run. Service life optimisation ensures that
every pump is defined once as a standby pump.
No standby pump is provided for at the factory. Standby pumps can be defined by Wilo
customer service.
Pump test run
To avoid longer downtimes, a cyclical test run of the pumps can be activated. The time
between 2 test runs can be set. In the SCe version, the speed of the pump can be adjusted
(during the test run).
•Activate pump test run: Control settings→Additional settings→Pump test run
A test run is only performed when the unit has been brought to a standstill. Whether the
test run should also take place in the “external off” state can be defined. With drive OFF,
there is no test run.
•Set the pump test run to External off: Control settings→Additional settings→Pump test
run
Low water
A low water signal can be sent to the control system via a normally closed contact by
means of the signal from a suction-side pressure switch or break tank float switch. In the
SCe version, the supply pressure is monitored by an analogue supply pressure sensor. The
pressure threshold for dry-running detection can be defined. The digital low water contact
can be used in addition to the supply pressure sensor.
•Define pressure threshold for dry-running detection: Control settings→Monitoring set-
tings→Dry run
The pumps are switched off after a delay time that can be set has expired. If the signal in-
put is closed again within the delay time or if the supply pressure rises above the pressure
threshold (only for SCe), the pumps are not switched off.
•Set the delay time: Control settings→Monitoring settings→Dry run
The system restart after a deactivation due to low water is performed automatically after
the signal input closes or the supply pressure threshold for cancelling the dry run is ex-
ceeded.
The fault message is reset automatically after the restart, but can be read out from the his-
tory memory.
Monitoring of maximum and minimum pressure
The limit values for safe system operation can be set.
•Set the maximum and minimum pressure limits: Control settings→Monitoring settings
If the maximum pressure is exceeded, the pumps are switched off. The collective fault sig-
nal is activated.
•Set maximum pressure: Control settings→Monitoring settings→Maximum pressure
When the pressure drops below the activation threshold, normal operation is enabled again.
If the pressure does not drop due to the system, the error can be reset by increasing the
switching threshold and then acknowledging the error.
•Reset fault: Interaction/Communication→Alarms→Acknowledge
It is possible to set the pressure threshold of the minimum pressure monitoring and the
delay time. The behaviour of the control device when the pressure falls below the threshold
can be selected: Switch off all pumps or continue operation. The collective fault signal is al-
ways activated in all cases. If “Deactivation of all pumps” is selected, the fault must be ac-
knowledged manually.
•Set minimum pressure: Control settings→Monitoring settings→Minimum pressure
en
16 Installation and operating instructions • Wilo-Control SC2.0-Booster • Ed.01/2023-09
External Off
It is possible to deactivate the control device externally using a normally closed contact.
This function takes priority; all pumps running in automatic mode are switched off.
Operation in the event of an output pressure sensor fault
If an output pressure sensor malfunctions (e.g. wire break), the behaviour of the control
device can be set. The system is either switched off or continues to run with a pump. In the
SCe version, the speed of this pump can be set in the menu.
•Set the behaviour in case of malfunction of the output pressure sensor: System→-
Sensors→Discharge side sensor fault
Operation in the event of malfunction of the supply pressure sensor (only SCe)
If a supply pressure sensor malfunctions, the pumps are switched off. If the fault is
remedied, the unit switches back to automatic mode.
If emergency operation is required, the unit can continue to be operated temporarily in the
p-c control mode. To do so, the use of the supply pressure sensor must be deactivated
(“OFF”).
•Set control mode: Control settings→Control→Control mode
•Deactivate the supply pressure sensor: System→Sensors→Suction side measurement
range
CAUTION
Damage to property due to dry run!
Dry running can damage the pump.
• We recommend connecting additional digital protection against low
water level.
The emergency operation setting must be cancelled after replacement of the supply pres-
sure sensor to ensure the reliable operation of the unit.
Operation in the event of malfunction of the bus connection between the control
device and pumps (only SCe)
There is the option to choose between stopping the pumps and operating at a defined
speed in the event of a communication malfunction. The setting can only be made by Wilo
customer service.
Pump operating mode
The operating mode can be set for pumps 1 to 4 (Manual, Off, Auto). In the SCe version, the
speed can be set in “Manual” operating mode.
•Set operating mode of each pump: Control settings→Standby→Pump mode
Setpoint changeover
The control system can work with 2 different setpoints. They are set in the menus “Control
settings→Setpoints→Setpoints 1” and “Setpoints 2”.
•Set setpoint changeover: Control settings→Setpoints→Setpoints1 and
Control settings→Setpoints→Setpoints2
Setpoint 1 is the reference setpoint. Switching to setpoint 2 is performed by closing the
external digital input (according to the circuit diagram) or by activation via preset timing.
•Activate timing: “Control settings→Setpoints→Setpoints 2” menu
Remote setpoint adjustment
Remote adjustment of the setpoint via an analogue current signal can be carried out using
the corresponding terminals (according to the circuit diagram).
•Activate remote setpoint adjustment: Control settings→Setpoints→External setpoint
The input signal is always related to the sensor measuring range (e.g., 16bar sensor: 20mA
corresponds to 16bar).
If the input signal is not available when remote setpoint adjustment is activated (e.g., due
to a cable break in the 4…20mA measurement range), an error message is issued and the
control device uses the selected internal setpoint 1 or 2 (see “Setpoint changeover”).
en
Installation and operating instructions • Wilo-Control SC2.0-Booster • Ed.01/2023-09 17
Logic reversal of the collective fault signal (SSM)
The desired logic of the SSM can be set in the menu. It is possible to select between negat-
ive logic (falling edge in case of a fault = “fall”) or positive logic (rising edge in case of a
fault = “raise”).
•Set collective fault signal: Interaction/Communication→BMS→SBM, SSM
Function of the collective run signal (SBM)
The desired function of the SBM can be set in the menu. It is possible to select between
“Ready” (control device is ready for operation) and “Run” (at least one pump is running).
•Set collective run signal: Interaction/Communication→BMS→SBM, SSM
Fieldbus connection
The control device is prepared for connection via ModBus TCP as standard. Connection is
established via an Ethernet interface (electrical connection as per chapter 7.2.10).
The control device works as a Modbus slave.
Different parameters can be read and also changed to some extent via the Modbus inter-
face. See the appendix for an overview of individual parameters and a description of the
data types used.
•Set fieldbus connection: Interaction/Communication→BMS→ModbusTCP
Pipe filling
To avoid pressure peaks when filling empty or low-pressure pipes or to fill pipes as quickly
as possible, the pipe filling function (“tube filling function”) can be activated and con-
figured. It is possible to select the mode “One pump” or “All pumps”.
•Define pipe filling: Control settings→Additional settings→Tube filling function
If the pipe filling function is activated, the system operates according to the table below
following a restart (activation of mains voltage; external on; drives on) for a time that can
be set in the menu:
Device “One pump” mode “All pumps” mode
SCe One pump runs at a speed acc. to
“tube filling function” menu.
All pumps run at a speed acc. to
“tube filling function” menu.
SC 1 pump runs at fixed speed. All pumps run at fixed speed.
Table1: Operating modes for pipe filling
Fault-actuated switchover of multi-pump system
•Control devices with fixed speed pumps – SC: If the base-load pump has a fault, it is
switched off and one of the peak-load pumps is managed by the switchgear as a base-
load pump.
•Control devices in the SCe version: If the base-load pump malfunctions, it is switched
off and another pump assumes the control function.
A malfunction of a peak-load pump always leads to its shutdown and the activation of
another peak-load pump (possibly also the standby pump).
5.3.4 Motor protection Excessive temperature protection
Motors with an WSK (thermal winding contact) signal an excessive winding temperature to
the control device by opening a bimetal strip contact. The connection of the WSK is carried
out according to the circuit diagram. Faults on motors that are equipped with a temper-
ature-dependent resistor (PTC) for excessive temperature protection can be detected us-
ing optional evaluation relays.
Overcurrent protection
Direct-starting motors are protected by motor protection switches with thermal and elec-
tromagnetic tripping devices. The trigger current must be set directly on the motor protec-
tion switch.
Motors with star-delta starting are protected by motor protection relays. The motor pro-
tection relays are installed directly on the motor protections. The trigger current must be
set and is 0.58× Inom with the star-delta starting of the pumps used.
Pump faults which reach the control device result in deactivation of the corresponding
pump and activation of the collective fault signal. After the cause of the fault has been rec-
tified, it is necessary to acknowledge the fault.
en
18 Installation and operating instructions • Wilo-Control SC2.0-Booster • Ed.01/2023-09
The motor protection is also active in manual mode and leads to deactivation of the corre-
sponding pump.
In the SCe version, the pump motors protect themselves by mechanisms integrated in the
frequency converters. The error messages from the frequency converters are handled in the
control device as described above.
5.4 Technical data Mains supply voltage 3~380/400V (L1, L2, L3, PE)
Frequency 50/60 Hz
Control voltage 24 VDC; 230 VAC
Max. current consumption See rating plate
Protection class IP54
Max. fuse protection on mains side See circuit diagram
Ambient temperature 0°C to +40 °C
Electrical safety Pollution degree 2
5.5 Type key Example: SC-Booster 2x6.3A DOL FM
SC Version:
•SC = Control device for fixed-speed pumps
•SCe = Control device for electronically controlled variable-speed pumps
Booster Control for pressure-boosting systems
2x Max. number of pumps that can be connected
6.3A Max. rated current per pump in amperes
DOL
SD
Pump activation type:
- DOL = direct start (Direct online)
- SD = star-delta starting
FM
BM
WM
Installation type:
- FM = Control device is mounted on the base frame (frame mounted)
- BM = Floor model (base mounted)
- WM = Control device is mounted on a mounting bracket (wall mounted)
5.6 Scope of delivery •Control device
•Circuit diagram
•Installation and operating instructions
•Factory test protocol
5.7 Accessories Optional Description
Communication module "ModBus RTU" Bus communication module for "ModBus
RTU" networks
Communication module "BACnet MSTP" Bus communication module for "BACnet
MSTP" networks (RS485)
Communication module "BACnet IP" Bus communication module for "BACnet IP"
networks
WiloCare 2.0 Connection to internet-based remote
maintenance
NOTICE
Only one bus option can be active at any given time.
Other options on request
•Order accessories separately.
en
Installation and operating instructions • Wilo-Control SC2.0-Booster • Ed.01/2023-09 19
6 Installation and electrical con-
nection
6.1 Installation types
WARNING
Risk of personal injury!
• Adhere to existing accident prevention regulations.
Installation on base frame, FM (frame mounted)
For compact pressure-boosting systems, the control device (depending on the system
series) can be mounted on the base frame of the compact unit with 5 screws (M10).
Floor model, BM (base mounted)
The control device is set up free-standing on a level surface (with sufficient load-bearing
capacity). In the standard version, there is an up-right panel support (height 100mm) for
the cable inlet. Other supports are available on request.
Wall fixation, WM (wall mounted)
In compact pressure-boosting systems, the control device (depending on the system
series) can be mounted on a mounting bracket with 4 screws (M8).
6.2 Electrical connection
DANGER
Risk of fatal injury due to electrical current!
Improper conduct when carrying out electrical work can lead to death
due to electric shock!
• Electrical work must be carried out by a qualified electrician in accord-
ance with the locally applicable regulations.
• If the product is disconnected from the mains, secure it against being
switched on again.
NOTICE
All cables to be connected must be inserted through threaded cable
glands (FM and WM installation type) or cable inlet plates (BM installation
type) into the control device and secured so that they are not under ten-
sion.
en
20 Installation and operating instructions • Wilo-Control SC2.0-Booster • Ed.01/2023-09
6.2.1 Connecting cable shields EMC threaded cable glands
1
2
3
Fig.11: Connecting cable shields to the EMC threaded cable connections
1. Connect the cable shield with the EMC threaded cable gland according to the figure.
Connection with shield clamps
1
3
2
4
Fig.12: Connecting cable shields to the earth rail
1. Connect the cable shields with the shield clamp according to the figure.
2. Adjust the cutting length to the width of the clamp used.
This manual suits for next models
1
Table of contents
Other Wilo Extender manuals
