CONTROL PANELS for 2 Q2P series ELECTRIC PUMPS

CONTROL PANELS for 2 Q2P series ELECTRIC PUMPS Q2PME16EI Q2PTE08EI USER MANUAL 1 763.483 Ed. 1 Rev. 0 08/04/2013

1. WARNINGS GUIDE TO CONSULTING THE USER MANUAL 2. PREFACE IMPORTANT CONSERVATION SYMBOLS DEMOLISHING AND DECOMMISSIONING 3. PRELIMINARY INFORMATION PRODUCT PRESENTATION INTENDED USE NON-PERMITTED USE NAMES OF PARTS IDENTIFICATION OF THE EQUIPMENT 4. TECHNICAL SPECIFICATIONS GENERAL SPECIFICATIONS obligatory implementation 5. INSTALLATION 5.1 PRELIMINARY OPERATIONS FASTENING THE EQUIPMENT 5.2 CONNECTION SETUP ELECTRICAL CONNECTION 5.3 COMMISSIONING SHUTTING DOWN THE MOTORS MOTOR 1 PROTECTION SETTING MOTOR 2 PROTECTION SETTING INTERNAL POTENTIOMETER ADJUST- MENT SETTING THE FUNCTIONS 6. OPERATION AND USE 6.1 CONTROL PANEL TYPES OF LIGHT SIGNALS MAIN LIGHTS (SYSTEM) MOTOR SIGNALS CONTROL BUTTONS RECORDING REC BUTTONS ALARM RESET BUTTON 6.2 OPERATION MODES DESCRIPTION AUTOMATIC PERMANENT HAND TEMPORARY HAND 6.3 COMMON FUNCTIONS DRY RUNNING PROTECTION "SO" STOP INPUT ALARM FOR STOP VIA "SO" OR VIA "DRY RUNNING" PROTECTION "W" STOP INPUT MOTOR PROTECTION ENABLING 6.4 AUXILIARY FUNCTION SELECTORS KEY SELECTOR J1 SELECTOR J3 6.5 INTERNAL ADJUSTMENT POTENTIOMETERS MOTOR OVERLOAD OVERLOAD 1, 2 STOP DELAY 1st MOTOR M1 STOP DELAY START DELAY 2nd MOTOR M2 START DELAY Potentiometer not active Inom SET 6.6 CURRENT PROTECTION RECORDING REC MOTOR DATA CHECK TEST MOTOR DATA OVERLOAD PROTECTION THRESHOLD 7. WARNINGS AND ALARMS 7.1 DESCRIPTION 7.2 SYSTEM POWER SUPPLY "SO" STOP INPUT "W" STOP INPUT 7.3 MOTOR PROTECTION TRIP RUN 8. QUICK INFO 8.1 SIGNALS 8.2 CONTROLS 8.3 SELECTOR J1 FUNCTIONS 2

1. WARNINGS 2. PREFACE GUIDE TO CONSULTING THE USER MANUAL To use the equipment, it is not necessary to read the entire manual, just certain parts which provide useful information, as explained below: INSTALLATION Ch. 5.1, 5.2 and the TECHNICAL MANUAL Specific for each model of equipment. IMPORTANT This document is to be considered an integral part of the equipment, therefore it must be conserved and kept throughout its duration and use. Before implementing any intervention or operation on the equipment, it is recommended to carefully read all the information in this manual. Strictly follow the instructions given in this manual as safe operation and conservation of the equipment depend on proper use and application of the recommendations described further on. The manufacturer declines all responsibility for damage caused to persons, objects or animals deriving from non-compliance with the requirements provided in this manual. CALIBRATION Ch. 5.3 CONSERVATION If the manual is lost, stolen or damaged, a copy may be requested from the manufacturer. OPERATION in general Ch. 6.1, 6.2, 6.3 SIGNALS Ch. 6.1 SYMBOLS This signal indicates that serious damage can be caused to the equipment and/or persons if the operations described in the manual are not implemented correctly. SELECTORS and PO- TENTIOMETER Ch. 6.4, 6.5 ALARMS Ch. 6.1, 7 In any case, the CONTENTS contains all the indications necessary in order to find the information required. DEMOLISHING AND DECOMMISSIONING The electrical equipment must be disposed of as separate waste. Appropriate precaution must be taken when the equipment is to be demolished or decommissioned so as to prevent hazardous situations for persons or objects: Disconnect the equipment from the power supply and release any residual energy; The equipment must be delivered to a waste collection facility for electrical and electronic equipment set up by the local authorities. 3

3. PRELIMINARY INFORMATION PRODUCT PRESENTATION The equipment consists of an electrical panel intended for the control of water treatment electric pumps. INTENDED USE The equipment has been solely designed and built for the functions and use described in this manual 6 NON-PERMITTED USE Any other use that does not comply with that stated in this manual is to be considered as improper use and is therefore, strictly forbidden. NAMES OF PARTS Example of Q2PTE08EI equipment: 2 1. Disconnecting switch with door lock 2. Synoptic panel 3. Terminal block for control components 4. Terminal block for motors 5. Terminal block for power supply 6. Adjustment selectors and potentiometers IDENTIFICATION OF THE EQUIPMENT An external plate on the equipment states the identification data, such as: 1 IDENTIFICATION: Product line Manufacturer : Name of the manufacturer Code : Code Model : Model S/N : Serial number Date : Manufacturing date POWER SUPPLY Un : Voltage Fn : Frequency In : Current at full load Icc : Short-circuit withstand 3 DOCUMENTATION AND STANDARD Standard : Standard Main Doc : Documentation MOTOR OUTPUT M : Identification I : Operating current P : Rated power 4 5 WARNING Indication of electrical danger To be disposed of as electrical or electronic waste CE marking Country of production 4

4. TECHNICAL SPECIFICATIONS GENERAL SPECIFICATIONS Name and description: "Q2P" CONTROL PANEL FOR 2 ELECTRIC PUMPS WITH ELECTRONIC PROTECTION: Model Q2PME16EI Q2PTE08EI Power Supply Single-phase 230 / 240V Three-phase 230 / 240V 400 / 415V Motor startup type Direct Direct Power section: Power supply (depending on the models): Single-phase: ~ 50/60Hz 230 / 240V ±10%; Three-phase: 3~ 50/60Hz 230 / 240V ±10%; 3~ 50/60Hz 400 / 415V ±10%; With internal selection of power supply; 2 outputs for three-phase or single-phase electric pumps with incorporated capacitor according to the unit model. Neutral regime: TT, TN, IT system. Protection against indirect contact must be ensured using external devices or suitable precautions, according to current standards. For the electrical connection to the mains, refer to the section: DATA FOR POWER SUPPLY in the TECHNICAL MANUAL Control inputs: 4 very low voltage float switch or pressure switch inputs for the following: shutdown level or pressure detection (S0); Control level or pressure of the first electric pump ("S1" input); Control level or pressure of the second electric pump ("S2" input); Alarm level or pressure ("W" input). Controls and signals: 2 buttons for every electric pump for the following function modes: AUTOMATIC / alarm RESET; HAND / ; Enabling the motor current Self-learning feature for commissioning; 3 indicator lights for the following signals: Power supply status (regular operation or fault); Stop float switch or pressure switch intervention (input S0 ); Alarm float switch or pressure switch intervention (input W ); 3 indicator lights for every electric pump for the following signals: Operating mode (AUTOMATIC / / HAND); Motor status (running, stopped due to dry running; the alarms are distinguished individually); Motor protection triggered (overload, minimum load; the alarms are distinguished individually); Acoustic signal: Continuous for system alarms: "W" input, "SO" input (excludable), "dry running" protection intervention (excludable); Intermittent for motor alarms ("overload" or "minimum load" protection; Single or double Beep for warning of special settings of internal selectors; Functions set via the selectors: Auxiliary features: Polarity inversion of "SO" stop input; Polarity inversion of "W" alarm input; Self hold, for electric pump start-up only via relative "S1" and "S2" control inputs, electric pump stop only via "SO" stop input; Alternate electric pump start-up and switch for uninterrupted running after 12 hours; Alarm signal for interventions on "SO" stop input or for "dry running" protection interventions; Motor protections (overload, minimum load, dry running) enabled permanently or in disabled temporarily (10s). Protection against motor "dry running" enabled. Features which can be set from the potentiometer: Intervention threshold of motor 1 overload protection; Intervention threshold of motor 2 overload protection; Second electric pump start delay starting in AU- TOMATIC mode (0 30s); Stop delay of the first electric pump started in AUTOMATIC mode (0 180s). 5

General functions: Motor start-up delay (10s) after reconnecting the power supply voltage; Electric pumps started-up non-simultaneously, with an interval of 2s, in AUTOMATIC mode, unless otherwise set on the adjustment potentiometer of the "first pump start delay"; Periodic release of the impeller in AUTOMATIC mode (running 2s every 48h); MANUAL run mode type: PERMANENT by a short press on the button; It is subject to stop running due to the S0 input or the Dry Running protection being triggered. "TEMPORARY": by keeping the control button pressed; Running is not subject to stop via "SO" input or via intervention of the Dry Running protection. Alarms and protections: Intervention of float switch or pressure switch for the following: Stop ("SO" input): pump stop, signalling with relative fixed on warning light and any general alarm emission if enabled; Alarm ("W" input): signalling with relative fixed on warning light and general alarm emission; Intervention of protection against: Motor overload with calculation of stored energy (I 2 t): pump stop, signalling with relative fixed on warning light and general alarm emission; Minimum load of motor: pump stop, signalling with relative flashing warning light and general alarm emission; Dry running: arresto della pompa, segnalazione con light and any general alarm emission if enabled; periodic reset attempts (10 minutes); Start-up of second motor, if available, to replace the one that has stopped due to the intervention of any protective device (excluding the dry running protection device). Motor protection fuses for each motor (1 pair for Q2PME16EI and 3 pcs for Q2PTE08EI); Auxiliary circuit protection fuses; Informazioni tecniche: Insulation voltage, dependent on the power voltage: 300V for a 230/240V power supply; 450V for a 400/415V power supply; Rated voltage of control circuits 12V; Voltage of control circuits for the contactor coils (if present): 230/240V; Personnel protection measures: Isolation of live parts; Protection using barriers or casings; Casing made of thermoplastic material or metal, depending on the model; IP55 Degree of Protection (the degree of protection is guaranteed only if the connection cables have been properly installed). Main disconnecting switch with door lock; Equipotential protection circuit (Earth); A tool is required to open the casing; Conditions of service: Stationary equipment; Installation inside a building; wall-mounted; with accessible lateral, top and bottom sides (not recessed). Natural ventilation; Room temperature 5/+40 C, average temperature within 24h lower than +35 C. Clean air with maximum relative humidity 50% with a maximum temperature of +40 C. Pollution degree 2 (Only non-conductive pollution occurs except that occasionally a temporary conductivity caused by condensation is to be expected) Maximum altitude is 2,000m above sea level; Transportation, storage and installation temperature -25/+55 C and a maximum of +70 C when less than 24h; Type of electrical connections of the functional units: FFF (fixed connections either connected or disconnected using a tool for the main input or output circuit and auxiliary circuits). EMC Electromagnetic compatibility: Environment 1 (equipment supplied by the lowvoltage public system, residential, commercial and light industrial systems). Reference standards: See the document DECLARATION OF CONFORMI- TY. 6

5. INSTALLATION ALL the INSTALLATION stages must be implemented THOROUGHLY! Otherwise, there may be a risk of: Incorrect system operation and serious damage caused to the equipment. Serious injuries, death or long term health risks. 5.2 CONNECTION SETUP SWITCH and OPEN the equipment. 0 5.1 PRELIMINARY OPERATIONS FASTENING THE EQUIPMENT Degree of protection and conditions of service: those stipulated in the technical specifications of the equipment must meet the requirements of the type of installation. Fastening the casing: this must be implemented through the special holes (already present or drilled) at the bottom or with the fastening brackets, if supplied. Passing the connection cables: this is implemented by means of cable glands that must be installed on the lower part of the casing, after having drilled appropriate holes. The hole must have an adequate diameter for the cable gland to pass and must not have any burrs, so as to further guarantee the required degree of protection once the assembly process is completed. Connecting the cables in the terminal block: this must be implemented with the use of a tool of the right size, so as to avoid damaging the terminal itself. Take great care when drilling and fastening so as to avoid touching or damaging the components and any control boards inside the equipment. Cleaning the casing: this must be implemented once installation is completed. This consists of the removal of all kinds of metal and/or plastic impurities that may have fallen inside the casing (for example, screws, washers, lengths of wire, sheath, drilling chips, dust, etc.). Disconnect the mains before implementing any operation inside the electrical equipment and remember that the source side section of the main switch always remains live even if the disconnecting switch has been opened. The electrical connections must only be implemented by a qualified electrician. Power supply: this must be of adequate voltage and current for the equipment. Earth system: this must conform to applicable regulations so as to guarantee adequate dispersion. Electrical power line protections: these must conform to applicable regulations. Conductors: these must be made of copper, be as short as possible, with insulation and a crosssection that are adequate for the voltage and operating power, respectively. For the electrical connection to the mains, refer to the section: DATA FOR POWER SUPPLY in the TECHNICAL MANUAL 7

ELECTRICAL CONNECTION Example: 2 three-phase motors. The electrical connection must be implemented as stipulated in the paragraph called: CONNECTION DIAGRAM in the TECHNICAL MANUAL QS1 L1 L2 L3 PE KM1 KM2 T1 T2 T3 T1 T2 T3 U V W U V W M1 M2 Voltage-change selector N Example: 2 single-phase motors. QS1 L CONNECT : the power supply, the protective earth conductor and the electric pumps to the respective terminals. Refer also to the instructions supplied with the electric pumps, for the electrical connection as well as verification of the correct rotation direction. Ensure that the rated power and current of the applied loads fall within the limits stipulated in the technical specifications of the equipment. PE N M1 M1 L1 N M2 M2 L1 L1 L2 L3 PE 3~50/60Hz 230 / 240V ±10% 400 / 415V ±10% 230V 400V Make sure that the Voltagechange selector is in the correct position based on the supply voltage The float switch or stop pressure switch at "SO" input, setting the contact status with micro switch J1-1 for running consent. = with "contact closed". ON = with "contact open". The float switches or functional control pressure switches, if present, at inputs "S1", "S2"; otherwise leave terminals open. The float switch or alarm pressure switch at "W" input, setting the contact status with micro switch J1-2 for regular operation (no alarm): = with "contact closed". ON = with "contact open". The sensor cable screen can be connected to the "Mass" terminal (internally connected to "PE"). N L PE X S0 X S1 X S2 X W ~50/60Hz 230 / 240V ±10% SL/SP STOP SL/SP 1 SL/SP 2 SL/SP MAX 8

5.3 COMMISSIONING MOTOR 1 PROTECTION SETTING CLOSE, connect the power supply and SWITCH ON the equipment. ENABLE the recording func on REC I ON Press and hold both the HAND and AU TO RESET bu ons on MOTOR 1 for more than 5 seconds. The indicator light RUN must blink with 2 flashes. SHUTTING DOWN THE MOTORS SELECT the " opera ng mode for all motors Check that the OPERATION indicator light is off on all the motors. If they are not, press the HAND bu on on the affected motors once, briefly. 2 flashes 2x START the motor in "PERMANENT HAND" mode Press the HAND bu on on MOTOR 1 once, briefly. Off On 2 flashes 2x 9

CHECK... 1. That the DIRECTION OF ROTA TION of the electric pump is correct. If the detected direc on is not correct, stop the motor, disconnect the power supply and U V W switch two phases of the motor, as shown in the picture. M Switch on the equipment once again, enable the recording func on REC, start the electric pump in "PERMANENT HAND" mode. 2. That the CURRENT consumed by the electric pump complies with their own data plate as well as of the equipment. A 3x RECORDING ERROR RECORDING FAILED TRIP :The measured current ex ceeds the operating current To repeat recording: disable REC mode on MOTOR 1 by pushing and hold both the HAND and AUTO RESET bu ons on MOTOR 1 for more than 5 seconds. The OPERATION indicator light must go off enable REC mode on MOTOR 1. start up the motor in PERMANENT MANUAL mode. 3. That the water FLOW / PRESSURE and the system FUNCTIONS are correct. WAIT for the motor to stop... or stop it on purpose by pressing the HAND bu on on MOTOR 1 once, briefly. 20s Off When the motor stops, the indicator light going off indicates that recording has been completed successfully and the system has exited REC mode. MOTOR 2 PROTECTION (if present) ENABLE the recording func on REC If the "TRIP" and/or "RUN" indicator lights go on, these indicate that the recording has failed. This must be repeated once the fault has been resolved: Press and hold both the HAND and AU TO RESET bu ons on MOTOR 2 for more than 5 seconds. START the motor in "PERMANENT HAND" mode Press the HAND bu on on MOTOR 2 once, briefly. CHECK... 1. The DIRECTION OF ROTATION of the electric pump. 2. The CURRENT absorbed by the electric pump. 3. The water FLOW or the PRESSURE and correct system OPERATION. WAIT FOR the motor stop... 10

SWITCH and OPEN the equipment Inom SET Auxiliary func on reserved 0 MAX Inom SET Leave or bring the potentiometer to "0". INTERNAL POTENTIOMETER ADJUSTMENT Inom SET OVERLOAD1 and 2 at "110%" MOTOR 1 and 2 overload threshold TEST 90 100 110 OVERLOAD 1 OVERLOAD 2 M1 STOP DLY REC 120 130 M2 START DLY OVERLOAD no. We recommend se ng a value not less than 110% on OVERLOAD poten ometers. Lower protec on is achieved by se ng a value between 110% and 130%. The 90% value is used only in the case of monitoring and tuning system. Potentiometers M1 STOP DELAY Stop delay on first motor M2 START DELAY Start delay on second motor s 60 90 120 s 10 15 20 30 150 5 25 0 180 0 30 M1 STOP DLY Set the desired delay for stopping the first motor to be started up. M2 START DLY Set the desired delay for starting the second motor to be started up. 11

SETTING THE FUNCTIONS Check and set micro switch J1 1...8 as needed. The factory se ng is suitable for normal uses. In special cases, see the table below and the AU XILIARY FUNCTIONS, sec on OPERATION AND USE. J3 J1 ON Selector in position ON ON J3 1 Leave J3-1 and J3-2 on Selectors ON J1 1 8 factory setting N. Micro switch J1 Features 1 CONTACT STATUS OF "SO" STOP INPUT FOR RUNNING CONSENT NC 2 CONTACT STATUS OF "W" ALARM INPUT FOR REGULAR OPERATIONS NC 3 SELF HOLD ENABLING No 4 PUMP ALTERNATION ENABLING Yes 5 Reserved 6 DRY RUNNING or SHUTDOWN LEVEL / PRESSURE ALARM ("SO" input) No 7 MOTOR PROTECTION ENABLING Yes 8 DRY RUNNING PROTECTION ENABLING Yes N. Micro switch J3 Features 1 Reserved CAUTION: The use of selectors is reserved; their position must always N 2 Reserved be. L 12

START-UP CLOSE, connect the power supply and SWITCH ON the equipment I ON ENABLE the motors in "AUTOMATIC" mode opera on Select AUTOMATIC operation by briefly pressing the AUTO-RESET button once for each motor WAIT for the motor start 10s On The motors will be started by the system based on the func ons set and the status of the inputs. VERIFY the system works. in all condi ons, including when the Dry Running electronic protec on is triggered (if enabled). To enable the protec on, you must always keep running consent from "SO" input enabled. 13

6. OPERATION AND USE 6.1 CONTROL PANEL TYPES OF ILLUMINATED AND ACOUSTIC SIGNALS Every indicator light gives more information about the system status by emitting light signals with different frequencies. The table below shows the various types of light indicators. Acoustic signals are differentiated according to the type of warning. The table on the left shows the various types of acoustic indications. Type of sound emitted Continuous Intermittent ( ) 1 Beep: 1 short beep + long pause (( )) 2 Beeps: 2 short beeps + long pause SYMBOL LIGHT SIGNAL TIME = Off = On-fixed = Normal blinking frequency 1 s 1 blink/ s 1x 2x 3x 4x = 1 Flash + long pause = 2 Flashes + long pause = 3 Flashes + long pause = 4 Flashes + long pause GENERAL SIGNALS (SYSTEM) POWER SUPPLY OK : control panel is on and working. "MAX" LEVEL/PRESSURE (W input) "MAX": alarm via "W" input "STOP" LEVEL/PRESSURE (SO input) STOP : consent denied via "SO" input 14

MOTOR SIGNALS TRIP PROTECTION INTERVENTION due to... OVERLOAD: motor overcurrent. 1x MINIMUM LOAD: motor current lower the minimum allowed (motor unconnected or contactor not activated). 3x 4x INVALID DATA RECORDED: incorrect current motor. CURRENT OUT OF LIMIT (in REC) : current exceeds the operating current limits of the equipment. CURRENT VERIFICATION ERROR (in TEST): measured motor current to be different to the registered one. INCORRECT SETTING: REC or TEST modes active for more than 90s (from pushbuttons or from OVERLOAD potentiometer). RUN MOTOR STATUS RUN: motor running. STOP: motor stopped by the controls or by the protections being triggered. DRY RUNNING (temporary shutdown): motor temporarily stopped due to the dry running protection being triggered. OPERATION AUTOMATIC: motor ready to be controlled by the status of the inputs. : motor stopped, regardless of the status of the control inputs. PERMANENT HAND: motor running, started-up via the HAND button being briefly pressed. SELECTORS ( ) J1-7 = (( )) J3-1 = R (ON) 2x TEMPORARY HAND: motor running, started-up via the HAND button being kept pressed. RECORDING REC : motor ready to be started-up to record the current reference values. 15

CONTROL BUTTONS AUTOMATIC mode selection Start-up in HAND mode Stop MOTOR 1 control MOTOR 2 control Press once Press once Press once AUTOMATIC PERMANENT HAND TEMPORARY HAND Press once Press once Press once 16

RECORDING REC BUTTONS ALARM RESET BUTTON ALARM STATUS An alarm on a motor can be reset by pressing the RESET button on the motor itself. ALARM reset ALARM MOTORE 1 MOTORE 2 Enabling / Disabling the recording REC function. Press and hold for more than 5 seconds both the HAND and AUTO RESET bu ons on each motor. Press once RESET REC REC 17

6.2 OPERATION MODES DESCRIPTION The operation modes are individual for each motor. The mode is selected via the buttons of each motor and is reflected by the light signals between the buttons as described in the CONTROL BUTTONS and MOTOR LIGHTS paragraphs in the CONTROL PANEL chapter of this OPERATION AND USE section. The function modes are described in the following paragraphs: AUTOMATIC PERMANENT HAND TEMPORARY HAND AUTOMATICO Each motor set to work in this function mode is controlled by the status of the sensors: SL/SP 1, SL/SP 2, connected respectively to the following inputs S1, S2, start up and shut down the motors (the inputs depend on the model of equipment). SL/SP STOP connected to the "S0" input stops the motors or enables the motors to run. SL/SP MAX connected to the "W" input emits an alarm signal. The Dry Running protection stops the motor stops the motor that detected it, if enabled and triggered. ALTERNATE START-UP This function is only available if both motors are enabled for AUTOMATIC operation. The closing of control inputs "S1", "S2" triggers the start-up of the respective motor which, in accordance with the setting of the micro switch, can be: J1-4 (=) non-alternating; rather, each input controls its motor (e.g.: "S1" controls motor 1, "S2" controls motor 2). (=ON) alternating at each command from the first input that closes; rather, with the motors stopped, the closing of the first input starts up the other motor, if available. (e.g. "S1" controls one of the two motors and then "S2" controls the other motor). The first motor that starts is the last to stop. A motor that runs continuously for 12 hours is shut down to start up the other motor if it is stopped, in AUTOMATIC mode, without active alarms. REPLACING THE MOTOR IN PROTECTION MODE When the Alternating start-up function is enabled, the intervention of any of the motor s protective devices, with the exception of the dry running device, starts up the other motor if it is stopped, in AUTOMATIC mode, without active alarms. DELAYED START-UP From the closure of control inputs "S1", "S2"... the first motor to start is started up immediately without delays; the second motor to start is started up with a delay M2 START DLY (0 30s) set on the potentiometer. The motors are never started up at the same time. The events are at least 2 seconds apart, even if the delay is set to 0s. DELAYED SHUTDOWN From the opening of control inputs "S1", "S2"... the second motor to start is stopped immediately without delays; the second motor to start is stopped with a delay M1 STOP DLY (0 180s) set on the potentiometer. The motors are never stopped at the same time. The events are at least 2 seconds apart, even if the delay is set to 0s. SELF HOLD Enabled via micro switch setting: J1-3 (=) not enabled; rather, each "S1", "S2" control input starts up and stops its relative motor. (=ON) enabled; rather, each "S1", "S2" control input only starts up its relative motor, while shutdown is carried out only via intervention of "SO" input. PERIODIC RELEASE OF THE IMPELLER This protects the electric pumps from a long period of idleness by starting up and running the pumps for 2 seconds periodically every 48 hours. The time elapsed since the last start-up is stored internally, even in the event of a power failure, and when it returns, the count resumes as normal. The function is only active in AUTOMATIC mode, therefore: A motor at a standstill when is selected on the button is excluded from the control and does not trigger release start-up. a motor started up in MANUAL mode is not considered as a release event. 18

PERMANENT HAND Each motor set to work in this function mode is controlled by the control button and status of some sensors: SL/SP STOP connected to the "S0" input stops the motors or enables the motors to run. SL/SP MAX connected to "W" input, emits an alarm signal and cannot modify motor status. The intervention of the "dry running" protection device, if enabled, stops the motor that detected it. Note: 1) the PERMANENT HAND mode is the same as the AUTOMATIC with SL/SP 1, SL/SP 2 (inputs S1, S2 ), always closed. 2) the shutdown and restart of the motors caused by the SL/SP STOP (input S0 is immediate for all motors (not sequential). TEMPORARY HAND Each motor set to work in this function mode is only controlled by the control button, whereas all the sensors connected to the inputs do not intervene on operation. The DRY RUNNING protection does not intervene and does not stop the motors even if enabled. This is useful when maintenance must be implemented on the system. 6.3 COMMON FUNCTIONS DRY RUNNING PROTECTION The system controls the smooth operation and when the electric pump no longer suctions water, in accordance with the setting of the micro switch, this causes: J1-8 (=) protection disabled: no action on the motor; (=ON) protection enabled: motor stops after about 10s at start-up or after 3s during normal running. An attempt to restore a motor stopped due to protection device intervention is carried out automatically after 10 minutes. The waiting time while attempting to restore can also be cancelled by pressing the RESET button for the relative motor. The stopping of one motor does not cause start-up of the other motor, even if available. SO" STOP INPUT It is possible to select the input status for which running consent of motors is given via micro switch setting: J1-1 (=) input closed. (=ON) input open. Note: The TEMPORARY HAND mode forces the operator to be constantly present because s/he makes the motor run regardless of the status of the sensors. It is recommended to use the "TEMPORARY HAND" mode only if necessary and always when managed directly by the operator. Each motor set to work in this function mode is stopped and cannot be started regardless of the status of the sensors. ALARM FOR STOP VIA "SO" OR VIA "DRY RUNNING" PROTECTION Via micro switch J1-6 setting, the following can be signalled as an alarm: stop condition via "SO" input provided that the "Self hold" function is excluded (J1-3=). intervention of the Dry Running protection. J1-6 (=) no alarm signal. (=ON) active alarm signal. "W" ALARM INPUT It is possible to select the input status for regular operation, meaning the absence of an alarm, via micro switch setting: J1-2 (=) input closed, no alarm. (=ON) input open, no alarm. Alarm reset is performed as soon as the input is set to normal status, according to the setting described above. 19

MOTOR PROTECTION ENABLING To allow for some system tuning operations, it is possible to temporarily disable motor protections such as "overload, minimum load, dry running" via micro switch setting: J1-7 (=) protections disabled: protections do not intervene for a brief amount of time (10s) from when the motor is started. Running is permitted even if nominal current registration has not been performed (see chapter COMMISSIONING, section INSTALLATION). ( ) The status of the selector is signalled by means of a single Beep. (=ON) protections enabled: protections intervene according to their set modes. We do not recommend excluding protections. Their exclusion should last no longer than necessary for tuning and then must immediately be re-enabled. This remains the responsibility of the operator. J3 6.4 SELECTORS AUXILIARY FUNCTIONS KEY The picture at the side shows the position of the micro switch. SELECTOR J1 N. 1 2 3 4 ON J1 Micro switch J1 Features 1 8 "SO" INPUT Contact status for running consent "W" INPUT Contact status for regular operation SELF HOLD enabling ON PUMP ALTERNATION enabling Selector in ON position (*) shows the factory setting of the micro switches Closed (NC) (*) Closed (NC) (*) No (*) ON Open (NA) Open (NA) Yes No Yes (*) 5 Reserved Off (*) On 6 ALARM for "SO" or "dry running" intervention No (*) Yes 7 MOTOR PROTECTION enabling No ( ) Yes (*) J1 8 DRY RUNNING PROTECTION enabling No Yes (*) SELECTOR J3 ON J3 1 IMPORTANT The use of selectors is reserved; their position must always be. N. Micro switch J3 Features ON Selectors 1 Reserved N (*) R (( )) 2 Reserved L (*) H 20

6.5 INTERNAL ADJUSTMENT POTENTIOMETERS MOTOR OVERLOAD OVERLOAD 1, 2 TEST REC 90 OVERLOAD no. 100 110 120 130 Each potentiometer is independent and acts only on its own engine. REC: select the mode (alternative to buttons) for recording the motor current. TEST: select the mode for comparing the detected motor current with the one recorded. 90 130%: in normal mode, select the intervention threshold of motor overload protection with respect to the recorded current. We recommend setting a value not less than 110%. Lower protection is achieved by setting a value between 110% and 130%. The 90% value is used only in the case of monitoring and tuning the system. For further information, see this section in the CUR- RENT PROTECTIONS chapter. STOP DELAY 1st MOTOR M1 STOP DELAY s 30 0 60 90 M1 STOP DLY 120 150 180 Determine the desired delay for stopping the first motor to be started up (0 180s). START DELAY 2nd MOTOR M2 START DELAY s 5 0 10 15 20 M2 START DLY 25 30 Determine the desired delay for starting the second motor to be started up (0 30s). Inom SET Potentiometer reserved feature Inom SET OVERLOAD 1 OVERLOAD 2 M1 STOP DLY 0 MAX M2 START DLY Inom SET Inactive feature: Leave or bring the potentiometer to "0". Potentiometers 21

6.7 CURRENT PROTECTION RECORDING MOTOR DATA REC It is essential to record motor data for electrical panel operation. It is independent for each motor and consists of self learning the current and cosφ of the motor at speed and during regular operation with the electrical panel in REC recording mode. The REC recording stage can be activated in two ways: 1. By push buttons: When the panel is on, press and hold both the HAND and AUTO RESET buttons on each motor for more than 5 seconds. A double flash of the OPERATION indicator light (control panel) indicates that recording is active. While the recording mode is active, the motor must be started up in PERMANENT HAND mode by pressing the HAND- button of the motor in question once, briefly. On Example for MOTOR 1 2x 2 flashes only in REC by push bu ons The recording process is completed in about 20 seconds. The motor shuts down automatically. If necessary, it is possible to halt motor running before the time expires, again by pressing the HAND- button once, briefly. If the process has been successful, the motor indicator lights go off and no signal is given. By potentiometer: When the panel is off, using the internal OVERLOAD potentiometer for each motor positioned in REC mode. Close and switch on the equipment. A double flash o f t h e 2x OVERLOAD indicator light TEST indicates that recording is active (NB: the REC indicator light is not visible with the equipment closed).. 2 flashes 2x 90 Indicator light OVERLOAD n 100 110 120 130 ATTENTION If REC mode has been activated using the keys, after successful recording the system exits that mode and is ready for normal operation. The OPERATION indicator light also goes off and no longer emits a double flash. If the REC function has been activated by the potentiometer, it is necessary to return it to normal operation ( 100-130% ) within 90 seconds. Otherwise, the TRIP indicator light will flash 4 times 4x To exit REC mode, push the buttons or switch off the device or position the potentiometer correctly. 22

If recording has found any invalid conditions, the data in the memory will be cleared and this will be shown on the TRIP and/or RUN indicators lights for the motor in question: 3x RECORDING FAILED TRIP :The measured current exceeds the opera ng current limits of the equipment. Recording must therefore be repeated once the fault has been resolved. To exit REC mode, press the HAND- and AUTO -RESET buttons again or position the potentiometer correctly. If necessary, it is possible to halt motor running before the time expires, again by pressing the HAND- button once, briefly, but in this case, the motor data check is not performed. If verification has found any invalid conditions, this will be shown on the TRIP indicator lights for the motor in question: 3x FAILED VERIFICATION TRIP : INCORRECT CURRENT The measured current is different from that recorded. Verification or recording must therefore be repeated once the fault has been resolved. CHECKING MOTOR DATA TEST It is not normally necessary to check motor data, but this may be useful in particular cases when checking and commissioning the electrical panel. It is independent for each motor and consists of comparing the current and cosφ recorded previously with those of the motor at speed and during regular operation with the electrical panel in TEST mode. The TEST stage can only be activated: When the panel is off, using the internal OVERLOAD potentiometer for each motor positioned in TEST mode. indicator light 1x TEST REC 100 110 120 Active verification is signalled by a single flash of the internal OVERLOAD light for the motor in question. Motor data verification is started up in the same way as recording mode, i.e.: Starting up the motor in PERMANENT MANU- AL mode. Waiting for automatic completion. Checking the absence of signals on the TRIP indicator lights. Moving the potentiometer back to the normal operation positions ( 100 130% ) within 90 seconds, otherwise, the TRIP indicator light will flash 4 times 4x 90 OVERLOAD n 130 OVERLOAD PROTECTION TRIGGER THRESHOLD Normal electrical panel operation requires the OVERLOAD potentiometer to be positioned at a value between 100 and 130%. We recommend setting a value not less than 110%. Lower protection is achieved by setting a value between 110% and 130%. The 90% value is used only in the case of monitoring and tuning the system. indicator light TEST REC 100 110 120 When the current measured exceeds the current recorded by the set % value, the OVERLOAD indicator light flashes and when the accumulation of energy [I 2 t] exceeds the limit value, the overload protection device is triggered and stops the motor. The internal OVERLOAD and the external TRIP indicator lights come on. 90 OVERLOAD n OVERLOAD PROTECTION 130 CURRENT THRESHOLD EXCEEDED PROTECTION TRIGGERED 23

7. ALERTS AND ALARMS 7.1 DESCRIPTION All anomalous conditions are displayed by the warning lights of the synoptic panel and by an acoustic signal. 7.2 SYSTEM POWER SUPPLY Power supply status and regular functioning of the equipment. Signal Name Description Acoustic signal Motor shutdown Reset operation ALIMENTAZIONE ASSENTE Apparecchiatura spenta o non funzionante. No Sì Automatico, al ritorno della alimentazione. "SO" STOP INPUT Stop sensor status Signal Name Description Acoustic signal Motor shutdown Reset operation STOP" SENSOR SO" input Open (if J1-1 = ) Closed (if J1-1 = ON) Yes, continue Yes Automatic when the cause of the fault disappears. W" ALARM INPUT Maximum Level or Maximum Pressure sensor status Signal Name Description Acoustic signal Motor shutdown Reset operation MAX" SENSOR W input Open (if J1-2 = ) Closed (if J1-2 = ON) Yes, continue No Automatic when the cause of the fault disappears. 24

7.3 MOTOR PROTECTION TRIP Intervention of the motor protection device due to: Faults with current or incorrect settings. All the protection devices described in this PROTECTION TRIP paragraph intervene for serious faults in the motor or the system, and even though manual resetting is allowed, they must be resolved by removing the cause. Indicator light Name Description Acoustic signal Motor shutdown Reset operation OVERLOAD Motor current overload. Yes, intermittent Yes Manual (1) 1x MINIMUM LOAD Motor current on all phases lower than the minimum permitted. Yes, intermittent Yes Manual (1) 3x INVALID RECORDED CURRENT A recording must be made. (2) Yes, intermittent Yes Manual (1) CURRENT OUT OF LIMIT (in REC) The measured motor current exceeds the operating current limits of the equipment (3) Yes, intermittent Yes Manual (5) CURRENT VERIFICATION ERROR (in TEST) The measured motor current is different from that recorded. (4) Yes, intermittent Yes Manual (5) 4x INCORRECT SETTING REC MODE (recording) or TEST (verification) active for more than 90s (from pushbuttons or from potentiometer OVERLOAD ). Yes, intermittent Yes Manual (6) Notes: (1) From the RESET button of the motor itself. (2) Repeat recording, leaving sufficient time (more than 5 seconds) to perform the operation. (3) Repeat recording, connecting a motor whose current is within the operating limits of the device. (4) Repeat the recording and/or check, ensuring they are performed while running at full speed and in normal conditions. (5) Switching the device off and then back again or disabling the "REC" or "TEST" function. (6) Switching the device off and back on again after having adjusted the internal potentiometer in a position that is different from REC and TEST. MARCIA RUN Protection against DRY RUNNING triggered Indicator light Name Description Acoustic signal Motor shutdown Reset operation DRY RUNNING Dry running condition detected. Yes, (1) continue Yes (2) Automatic (3) Notes: (1) Only with a "SO" or "dry running" ALARM active (J1-6 = ON). (2) Motor temporarily stopped and waiting for a reset attempt (3) Following the waiting time for the restart attempt (10 minutes). 25

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8. QUICK INFO 8.1 Signals SELECTORS TRIP MOTOR PROTECTION ( ) J1-7 = (( )) J3-1 = R (ON) POWER SUPPLY OK 1x 3x OVERLOAD MINIMUM LOAD INVALID RECORDED CURRENT CURRENT LIMIT EXCEEDED (in REC) INCORRECT CURRENT TEST (in TEST) MAX (W) 4x INCORRECT SETTING MAX RUN MOTOR STATUS GEAR STOP (S0) STOP STOP DRY RUNNING Type of sound emitted Continuous Intermittent ( ) 1 Beep (( )) 2 Beeps OPERATION AUTOMATIC PERMANENT MANUAL TEMPORARY MANUAL 2x REC RECORDING 8.2 Controls Initial status Button control Operating status Button control Final status Press once AUTOMATIC Press once Press once Keep pressed PERMANENT MANUAL TEMPORARY MANUAL Press once Release >5s REC >5s ALARM Press once 8.3 Selector J1 Features No. Function ON 1 2 "SO" Status c/e/ contact for running consent W" Status de/ contact for regular operation Closed (NC) (*) Closed (NC) (*) Open (NA) Open (NA) 3 SELF HOLD No (*) Yes 4 PUMP ALTERNATION No Yes (*) No. Function ON 5 Inactive Off (*) On 6 "SO", dry running ALARM No (*) Yes 7 MOTOR PROTECTION No ( ) Yes (*) 8 DRY RUNNING No Yes (*) (*) factory setting 27

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