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Safety important instructions.
This symbol warns that failure to comply with the prescription leads
to a risk of electric shocks.
This symbol warns that failure to comply with the prescription leads to a
risk of injury/damage to persons/objects.
Before installation and use of the product:
- read this manual completely and thoroughly
Check that the nameplate data are those desired and appropriate to the system,
-
and in particular that the rated current of the motor is compatible with the rated
current of the inverter
- Installation and maintenance must be carried out by qualified staff, responsible
for performing the hydraulic and electric connections according to the applicable
Standards in force
- The manufacturer declines all responsibility for damage deriving from improper
use of the product and is not liable for damage caused by maintenance or repairs
that are carried out by unqualified staff and/or using non-original spare parts
The use of non-original spare parts, tampering or improper use, make the
-
product warranty null and void.
During first installation or when carrying out maintenance make sure that:
-
the electric power supply network is not live
-
The power supply network is equipped with protections and in particular of high-
sensitivity differential switch (30 mA in class A for domestic application, class
B for industrial applications) and grounding comply with the
-
Before removing the inverter cover or starting interventions on it, the system
must be disconnected from the mains electricity and you must wait for 5 mins
until the intermediate circuit condensers, have the time to discharge via the built-
in discharge resistors.
-
do not disconnect the pumps if STEADYPRES is in operation; before you
disconnect the pumps, stop the control and disconnect the power supply.
-
WARNING: out of service (flashing red LED) STEADYPRES remains in tension;
prior to any work on the pump or inverter is required, cut off power from the
group.
Emergency stop
An emergency stop can be performed while the inverter is running, by pressing the
START/STOP key.
In parallel inverters installations, only the MASTER inverter stops the whole system.
SAFETY STANDARDS
EN
Standards.

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Summary of Contents for DGFLOW STEADYPRES 2.0 M/M 8.5

  • Page 1 SAFETY STANDARDS Safety important instructions. This symbol warns that failure to comply with the prescription leads to a risk of electric shocks. This symbol warns that failure to comply with the prescription leads to a risk of injury/damage to persons/objects. Before installation and use of the product: - read this manual completely and thoroughly Check that the nameplate data are those desired and appropriate to the system,...
  • Page 2 INDEX - Safety standards …………………………………………………………. PART 1 – QUICK INSTALLATION GUIDE o Preliminary checks o Installation and hydraulic connections o Power connections o Signal connections o Starting-up o Access to main menu o Access to parameters o MENU structure o BASIC parameters Set pressure quick adjustment o ADVANCED parameters o Display the operating parameters...
  • Page 3: Preliminary Checks

    PART 1 - QUICK INSTALLATION GUIDE PRELIMINARY CHECKS During the initial installation and maintenance, make sure that ends of the line wires are not live. During the initial installation and maintenance, make sure that the system is not under pressure to ACCESS THE DRIVE WIRING, open the front cover as shown on p.
  • Page 4: Power Connections

    POWER CONNECTIONS Wire the cables as indicated in the diagrams below: Insert the connector and close A = inverter supply cable the side cover. Open the side cover B = output motor cable (4 screws) CAUTION : to overcome problems associated with long cables (between Inverter and pump motor) , evaluate the application of inverter output sinusoidal filter.
  • Page 5: Signal Connections

    SIGNAL CONNECTIONS Expansion board: is located in the back of the inverter (see fig. below) 10: not connected RS 485 + RS 485 - not connected not connected level input NC output signal comune C NO output signal JP3: bridged, no function JP4: bridged, no function JP5: no function - LEVEL SIGNAL CONNECTION...
  • Page 6: Access To Parameters

    STARTING UP Switch on By pressing (the switch is the button not present START in models STOP T/T) you put and wait the STARTING time (ab. 10 sec.) the inverter. ACCESS TO MAIN MENU To SCROLL the 4 To ACCESS the MAIN MENU use the buttons four main MENU...
  • Page 7: Menu Structure

    MENU STRUCTURE BASIC SET PRESSURE SECOND SET PRESSURE MOTOR CURRENT MOTOR DIRECTION OF ROTATION (models with three-phase output) DIFFERENTIAL PRESSURE FOR RESTART NOMINAL MOTOR FREQUENCY MINIMUM OPERATION FREQUENCY MAXIMUM OPERATION FREQUENCY STOP DELAY FOR DRY RUNNING MINIMUM POWER FACTOR (only T/T models) STOP DELAY FOR POWER FACTOR (only T/T models) RESTART INTERVAL FOR DRY RUNNING STOP DELAY FOR NO FLOW...
  • Page 8: Basic Parameters

    BASIC PARAMETERS The basic parameters for the configuration of the inverter must necessarily be set during installation Sets the constant BAS IC P 3.5 working pressure in the system. Sets a second working 2P 2.5 pressure. To activate configure parameter EI in ADV.
  • Page 9: Advanced Parameters

    ADVANCED PARAMETERS Listed below the ADVANCED PARAMETERS for the configuration of the inverter Sets the difference between the d 0.40 selected pressure (SETPOINT) and the effective restart pressure Sets the nominal frequency of the MF 50 motor The set value MUST be the same as the value indicated on the motor plate Sets the minimum operating...
  • Page 10 Sets the switchover frequency for the FS 10 power module. In case of long power cable, without a sinusoidal filter, set this value at the minimum Sets the interval between two US 0 consecutive automatic “no grip” start- ups (When the pump will be inoperative for a long).
  • Page 11 DISPLAY THE OPERATING PARAMETERS During To display the parameters on the Scroll the operation display parameters through the keys Pressing the key You go back to the system pressure (only for MASTER inverter) Display Description m.u.. SYSTEM PRESSURE P 3.2 Displays the system pressure (only for MASTER inverter) OPERATING FREQUENCY F 45...
  • Page 12 TEST to start and adjust the pump manually CAUTION: TEST mode is not active on the SLAVE unit; to make a TEST on the SLAVE unit, switch off temporarily the MASTER unit, so that the SLAVE unit becomes independent and is able to perform the TEST normally instruction display...
  • Page 13 ALARMS OVER The current exceeded the allowable tolerance on the current set. CURRENT % The inverter stops the pump, the rearm is only manual. CURRENT The current exceeded the module current capacity. LIMIT The inverter stops the pump, the rearm is only manual. i DRY Occurs if, in the absence of flow, the pump cannot reach the SET pressure, but can reach at least a pre-determined percentage of the SET pressure, defined through...
  • Page 14: General Remarks

    PART 2 ’ ’ GENERAL REMARKS STEADYPRES is a speed controller with the following features: - Powered by AC single-phase or three-phase - Output AC single-phase or three-phase - It maintains the system at constant pressure (VARIABLE SPEED CURVES) - It carries out continuous controls on electric and functioning parameters, saving the pumping unit from all common failures (over-currents, dry running, etc) - It works in stand-alone configuration or in parallel with other units, through serial connection.
  • Page 15: Working Limits

    WORKING LIMITS maximum working pressure: 10 bar (140 p.s.i) fluids accepted: clean water and liquids that are chemically non-aggressive. If there are impurities in the liquid, install a strainer upstream fire / explosion: inverters STEADYPRES ARE NOT SUITABLE for operation in environments with risk of explosion.
  • Page 16: Dimensions And Weights

    DIMENSIONS AND WEIGHTS Mod. 1" M/M 8.5 M/M 11 M/T 7 M/T 12 1" 1"1/4 ÷ (1") Mod. M/M 16 T/T 6 T/T 8 1"1/4 ÷ (1") Model connection weight Packaging dimensions (kg) (A x B x H - mm) M/M 8.5 - M/M 11 –...
  • Page 17: Installation

    INSTALLATION Before installing and using STEADYPRES: - read this manual thoroughly and carefully and refer to the Safety Standards. - Before making the connections, make sure that the ends of the line wires are not live. - Make sure also that the electric power supply network is protected by thermal magnet and differential protections according to the applicable Standard in force.
  • Page 18: Light Signals

    After performing the operations described in the INSTALLATION chapter, the inverter can be started. When STEADYPRES is switched on, it enters the STARTING phase, which lasts 10 seconds, after which STEADYPRES returns to the same operating conditions in which it was when it was last switched off: o in WORK mode if at the time of the last shutdown was IN SERVICE o in OUT OF SERVICE mode if at the time of the last shutdown was OUT OF SERVICE...
  • Page 19: Troubleshooting

    TROUBLESHOOTING...
  • Page 20: Maintenance

    MAINTENANCE Replacement of the CONTROL BOARD + PRESSURE SENSOR - Disconnect the inverter main power supply and wait 2 minutes (capacitors discharge) - Open the front cover and disassembly the pressure sensor and the control board as shown below - Install the new control board with pressure sensor in reverse order of removal. Open the front cover by unscrewing the 4 screws Before removing the cover, disconnect the ribbon cable of the display...
  • Page 21 1. MAKE THE FACTORY PARAMETERS RESET BEFORE STARTING THE INVERTER (parameter SET.F at page 11 of the Manual) 2. RESTORE MANUALLY THE SPECIFIC PARAMETERS OF THE SYSTEM 3. DO NOT RE-CALIBRATE THE PRESSURE SENSOR, IT IS FACTORY-CALIBRATED CALIBRATION OF THE PRESSURE SENSOR You need an auxiliary gauge near STEADYPRES bring the system (and STEADYPRES) pressure to zero (0 bar) Start the calibration of the pressure sensor according to the diagram below.
  • Page 22: Spare Parts Diagram

    - WARNING: PAY ATTENTION TO PROPERLY FIT THE CONNECTOR - Block the expansion board with 4 screws - Connect signals (see SIGNALS CONNECTION.) - Close the back cover SPARE PARTS DIAGRAM N° Description Q.ty KIT 1 Cover Kit with keyboard KIT 2 Pressure sensor Kit KIT 3...
  • Page 23: Warranty

    2014/30/EU Electromagnetic Compatibility Directive (EMC): EN 55014-1 (emission) EN 61000-3-2 (emission) EN 61000-3-3 (emission) EN 55014-2 (immunity) EN 61000-4 (immunity) EN 61800-3 EN 55011 (emission) EN 61000-3-2 (emission) EN 61000-3-3 (emission) EN 55014-2 (immunity) EN 61000-4 (immunity) Bigarello, 20/02/2015 DGFLOW S.r.l. President Stefano Concini...

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