Grundfos CONTROL MPC Installation And Operating Instructions Manual
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Grundfos CONTROL MPC Installation And Operating Instructions Manual

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GRUNDFOS INSTRUCTIONS
Control MPC
Installation and operating instructions

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  • Page 1 GRUNDFOS INSTRUCTIONS Control MPC Installation and operating instructions...
  • Page 2 Declaration of Conformity We, Grundfos, declare under our sole responsibility that the products Control MPC, to which this declaration relates, are in conformity with these Council directives on the approximation of the laws of the EC member states: — Low Voltage Directive (2006/95/EC).

  • Page 3: Table Of Contents

    11.7.10 S-system configuration (4.1.8) CONTENTS 11.7.11 Pump cascade control (4.2) Page 11.7.12 Min. time between start/stop (4.2.1) Symbols used in this document 11.7.13 Max. number of starts/hour (4.2.1) 11.7.14 Standby pumps (4.2.3) Scope of these instructions 11.7.15 Forced pump changeover (4.2.4) Product description 11.7.16 Pump test run (4.2.5) Applications...

  • Page 4: System (1

    4. Applications Warning Control MPC is used for control and monitoring of pumps in these Prior to installation, read these installation and applications: operating instructions. Installation and operation • booster systems must comply with local regulations and accepted codes of good practice.
  • Page 5 5. Nameplate 6. Software label The nameplate of the Control MPC is fitted on the base frame. The software label is placed on the back of the CU 351 controller. See position 2 in fig. 2. 1. Control MPC 3. Hydro MPC Type: 2.
  • Page 6 Type range Subgroups: E: Pumps with integrated frequency converter (0.37 - 22 kW) - one per pump E: Pumps with external Grundfos CUE frequency converter (30 kW and above) - one per pump F: Pumps with external Grundfos CUE frequency converter...
  • Page 7 Three E-pumps in operation. Grundfos CUE frequency converter and operation. two mains-operated pumps in operation. stop • Control MPC-E maintains a constant • Control MPC-F maintains a constant • Control MPC-S maintains an almost pressure through continuous adjustment pressure through continuous adjustment constant pressure through cutting in/out of the speed of the pumps.
  • Page 8 • The number of pumps in operation is also depending on the energy consumption of the pumps. If only one pump is required, the Control MPC will run with two pumps in operation at a lower speed if this results in a lower energy consumption. This requires that the differential pressure of the pump is measured.
  • Page 9 • no visible parts have been damaged. 9.1 Mechanical installation The Control MPC must be installed in a well ventilated room to ensure sufficient cooling of the control cabinet. Install the pumps according to the installation and operating instructions supplied with the pumps.

  • Page 10: Display (Pos

    The control panel incorporates a green and red indicator light. If the list of illustration elements exceeds the display, the symbols The green indicator light is on when the Control MPC is in will appear in the scroll bar to the right. Use the operation.
  • Page 11 11. Functions 11.1 Tree of functions Continued on page 12 1. Status 2. Operation 3. Alarm 1 Status 2 Operation 3 Alarm status 3.1 Current alarms 2.1 Further settings 3.1 Current alarms 2.1.1 System operating mode 3.1.1 Current alarms 3.2 Alarm log 1.2 System 2.1.2 Control mode 2.1.3 Setpoints...
  • Page 12 Continued from page 11 Settings Primary controller PI controller 4.1.1 4.1.2 Alternative setpoints 4.1.2.1 Alternative setpoints 2...7 4.1.3 External setpoint influence 4.1.3.1 Input value to be influenced by 4.1.3.2 Setting of influence function 4.1.4 Primary sensor 4.1.6 Clock program 4.1.7 Proportional pressure 4.1.8 S-system configuration...
  • Page 13 11.2 Overview Section Display and display number See page 11.4 Status (1) 11.4.1 Current alarms (3.1) 11.4.2 System (1.2) 11.4.3 Operating mode (1.2.1) 11.4.4 Setpoint (1.2.2) 11.4.5 Setpoint influence (1.2.3) 11.4.6 Measured values (1.2.4) 11.4.7 Analog inputs (1.2.5) 11.4.8 Pump 1...6 (1.3 to 1.8) 11.5 Operation (2) 11.5.1 Operation (2)

  • Page 14: Display And Display Number

    Section Display and display number See page 11.7.41 Monitoring functions (4.4) 11.7.42 Dry-running protection (4.4.1) 11.7.43 Dry-running protection with pressure/level switch (4.4.1.1) 11.7.44 Dry-running protection with pressure transmitter (4.4.1.2) 11.7.45 Dry-running protection with level transmitter (4.4.1.3) 11.7.46 Min. pressure (4.4.2) 11.7.47 Max.

  • Page 15: Status

    11.4 Status (1) 11.4.1 Current alarms (3.1) The first status display is shown below. This display is shown when the Control MPC is switched on, and it appears when the buttons of the control panel have not been touched for 15 minutes.

  • Page 16: Operating Mode (1.2

    Fault, External signal, CU 351 and Bus. Fig. 11 Setpoint influence Control source Control MPC can be set to remote control via an external bus Description (option). In this case, a setpoint and an operating mode must be The selected setpoint can be influenced by parameters. The set via the bus.

  • Page 17: Analog Inputs (1.2.5)

    • Auto The lines "Power consumption" and "Energy Together with the other pumps in automatic operation, the consumption" are only shown in Control MPC-E Note pump is controlled by the PI controller which ensures that the systems. system delivers the required performance.

  • Page 18: Operation

    11.5.1 Operation (2) Fig. 16 System operating mode Description Control MPC can be set to six different operating modes. Normal is the typical setting. See section 11.4.3 Operating mode (1.2.1). Fig. 15 Operation The performance of the operating modes Max., Min., User- defined and Emergency run can be set in the Settings menu.

  • Page 19: Control Mode (2.1.2)

    The external controller could for instance be a building management system connected to the Control MPC. In such cases the Control MPC is like an actuator. See figs 20 and 21. Fig. 17 Control mode Description There are two control modes, namely closed and open loop.
  • Page 20 86.6 11. Mark External setpoint influence with , and press external controller Fig. 23 Regulation curve for Control MPC-F in open loop 12. Mark Go to setting of analog input with , and press 13. Select the analog input with...

  • Page 21: Setpoints (2.1.3)

    5. Set the setpoint with , and press cascade and speed control. The manual pumps are a "disturbance" of the normal operation of Control MPC. Factory setting Setpoint 1 for closed-loop control is a value suitable for the If one or more pumps are in manual operation, the system may Control MPC in question.

  • Page 22: Setting Of Individual Operating Mode (2.1.4.1 To 2.1.4.6)

    11.5.6 Setting of individual operating mode (2.1.4.1 to 2.1.4.6) Fig. 27 Setting of individual operating mode Description This display is shown for the individual pumps and makes it possible to set an operating mode. Setting range It is possible to select Auto or Manual as well as the operating mode of the pump for manual operation - Max., Normal, Min.

  • Page 23: Alarm

    11.6 Alarm (3) The Alarm menu gives an overview of alarms and warnings. In this menu, it is possible to reset alarms and to see the alarm log. Fault 11.6.1 Alarm status (3) Water shortage Man/auto Water shortage Stop Man/auto Pressure high Stop Man/auto...

  • Page 24: Current Alarms (3.1)

    11.6.2 Current alarms (3.1) 11.6.3 Alarm log (3.2) The alarm log can store up to 24 warnings and alarms. Fig. 29 Current alarms Fig. 30 Alarm log Description This submenu shows the following: Description • Warnings caused by faults that still exist. Here warnings and alarms are shown.

  • Page 25: Settings

    GENIbus number and software status. Usually, all these functions are set correctly when the Control MPC is switched on. It is only necessary to make settings in this menu if the functionality is to be expanded with for instance alternative setpoints or setpoint influence, or if the settings of the CU 351 are to be adjusted.

  • Page 26: Pi Controller (4.1

    K and T will be set automatically according to the table below. As Control MPC does not know the pipe length, the default parameters will be set according to the table to a pipe length (L or L ) of 5 metres.

  • Page 27: Alternative Setpoints 2 To 7 (4.1.2.1 To 4.1.2

    11.7.3 Alternative setpoints (4.1.2) 11.7.4 Alternative setpoints 2 to 7 (4.1.2.1 to 4.1.2.7) Fig. 34 Alternative setpoints Fig. 35 Alternative setpoints 2 to 7 For each alternative setpoint, select the digital input to activate Description the setpoint. This function makes it possible to select up to six setpoints (No 2 to 7) as alternatives to the primary setpoint (No 1).

  • Page 28: External Setpoint Influence (4.1

    11.7.5 External setpoint influence (4.1.3) Setting via control panel 1. Mark the Settings menu with 2. Mark Primary controller with , and press 3. Mark External setpoint influence with , and press 4. Mark Input value to be influenced by with , and press Now a list of available parameters appear.

  • Page 29: Primary Sensor (4.1

    11.7.6 Setting of influence function (4.1.3.2) Setting via control panel 1. Mark the Settings menu with 2. Mark Primary controller with , and press 3. Mark External setpoint influence with , and press 4. Mark Set the influence function with , and press 5.

  • Page 30: Clock Program (4.1

    Setting via control panel Setting range 1. Mark the Settings menu with • Activation of the function. 2. Mark Primary controller with , and press • Activation and setting of event. 3. Mark Primary sensor with , and press Setting via control panel 4.

  • Page 31: Proportional Pressure (4.1

    The function makes it possible to invert the control of mains- and automatically adapts the setpoint set to the current flow rate. operated pumps (Control MPC-S). That is to set whether pumps The adaptation can be linear or square. See fig. 43.

  • Page 32: Min. Time Between Start/Stop (4.2.1)

    3. Mark Max. number of starts/hour with , and press 4. Set the permissible number of starts per hour with , and save with Factory setting Control MPC-E: 200 starts per hour Other variants: 100 starts per hour This function has no influence on Stop function Fig.

  • Page 33: Standby Pumps (4.2

    11.7.14 Standby pumps (4.2.3) 11.7.15 Forced pump changeover (4.2.4) Fig. 49 Standby pumps Fig. 50 Forced pump changeover Description Description This function makes it possible to limit the maximum performance This function ensures that the pumps run for the same number of of the system, by selecting one or more pumps as standby operating hours.

  • Page 34: Pump Test Run (4.2

    This function is primarily used in situations where the forced pump takes over the operation from the main pumps in periods pump changeover is deactivated, and/or if the Control MPC is set when the consumption is so small that the stop function of the to operating mode Stop, for instance in a period when the system main pumps is activated.
  • Page 35 11.7.18 Pump stop attempt (4.2.7) 11.7.19 Pump start and stop speed (4.2.8) Description The function controls the starting and stopping of pumps. There are two options: 1. Use calculated speed This function ensures that the optimum number of pumps is always running at a desired duty point, in terms of energy consumption.

  • Page 36: Stop Function (4.3.1)

    Fig. 57 Compensation for pump start-up time 11.7.20 Min. performance (4.2.9) Description The function is used for Control MPC-F systems only. The purpose is to avoid disturbances when a mains-operated pump with fixed speed is started. The function compensates for the time it takes a mains-operated pump to reach its full performance after start.

  • Page 37: Stop Function (4.3

    • prevent heating of the pumped liquid. The description of the stop function applies to all booster systems with variable-speed pumps. Control MPC-S will have on/off control of all pumps as described in section 8. Overview of control variants.
  • Page 38 8. Select one of the stop parameters with , and save Diaphragm tank size with . If Customised settings are selected, the parameters shown in fig. 63 must be set. See examples Recommended diaphragm tank size [litres] Pump type below. CRI(E) 3 CRI(E) 5 CRI(E) 10...

  • Page 39: Soft Pressure Build-Up (4.3.3)

    System with flow switch Make the following additional settings: H [m] 1. Filling phase 2. Pressure build-up phase 1. Mark Go to setting of digital input with , and press . Now the display Digital inputs (4.3.7) appears. 2. Select the digital input where the flow switch is connected with , and press 3.

  • Page 40: Emergency Run (4.3.5)

    The pumps will run according to a setpoint function. set specifically for this function. As standard, the Control MPC has three digital inputs. If the Control MPC incorporates an IO 351B module (option), the In case of sensor fault, both main and standby number of digital inputs is 12.

  • Page 41: Functions Of Digital Inputs (4.3.7.1)

    = Operating mode Min. Max. duty = Operating mode Max. Description In this display, the analog inputs of the Control MPC can be set. = Operating mode User- User-defined duty Each input can be activated and related to a certain function.
  • Page 42 11.7.29 Analog inputs (4.3.8.1 to 4.3.8.7) 11.7.30 Analog inputs and measured value (4.3.8.1.1 to 4.3.8.7.1) Fig. 70 Analog inputs Fig. 71 Analog inputs and measured value Description Description In the displays 4.3.8.1 to 4.3.8.7, analog inputs can be set. Each display is divided into three parts: In the display Analog inputs and measured value (4.3.8.1.1 to 4.3.8.7.1), a function can be related to the individual analog •...

  • Page 43: Min. Pressure (4.4.2)

    Fig. 73 Functions of digital outputs Description Description In this display, the digital relay outputs of the Control MPC can be In the displays Functions of digital outputs (4.3.9.1 to 4.3.9.16), a set. Each output can be activated and related to a certain function can be related to the individual outputs.

  • Page 44: Min. Duty (4.3.14

    Description Description This function makes it possible to let the pumps run in open loop In all systems, apart from Control MPC-S, minimum duty is only at a set pump performance. possible for variable-speed pumps. In Control MPC-S systems, only the number of pumps running at 100 % speed can be set.

  • Page 45: User-Defined Duty (4.3.14

    4. Mark Max. duty with , and press Note: In Control MPC systems with only variable-speed 5. Mark Number of pumps in operation at 100 % speed, max. pumps, the speed can be set between 25 and 100 %; in...

  • Page 46: Pump Curve Data (4.3

    (P1) must be entered. The data are read by means of the pump performance curves which can be found in WebCAPS on Grundfos’ homepage, www.grundfos.com. See examples in figs 79 to 82. If WebCAPS is not accessible, try to bring a pump into the three...
  • Page 47 Fig. 83 Control source The function is deactivated. Description Control MPC can be remote-controlled via an external bus connection (option). See section 11.8.2 GENIbus. Control can also take place via the bus connection. For further information, see section 11.8 Data communication.

  • Page 48: External Fault (4.4.4)

    Description Description As described in section 11.7.37 Pump curve data (4.3.19), the Control MPC has a series of functions that constantly monitor the CU 351 can optimise operation according to performance curves operation of the system. and motor data. In this display, curve types are selected which The primary purpose of the monitoring functions is to ensure that the CU 351 will use for the optimisation if they are available.

  • Page 49: Dry-Running Protection (4.4

    This function is primarily used in booster applications. Dry- pumps run dry. Grundfos thus always recommends dry-running running protection can take place by means of a pressure switch protection.
  • Page 50 11.7.44 Dry-running protection with pressure transmitter 11.7.45 Dry-running protection with level transmitter (4.4.1.3) (4.4.1.2) Fig. 90 Dry-running protection with level transmitter Fig. 89 Dry-running protection with pressure transmitter Description Description Dry-running protection can take place by means of a level Dry-running protection can take place by means of a pressure transmitter measuring the level in a tank on the suction side.

  • Page 51: Max. Pressure (4.4

    It is possible to set whether the indication is to be just a warning It is possible to set whether the Control MPC is to restart or an alarm stopping the pumps. This may be desirable if Control...

  • Page 52: External Fault (4.4

    11.7.48 External fault (4.4.4) 11.7.49 Limit 1 and 2 exceeded (4.4.5 and 4.4.6) Fig. 93 External fault Fig. 94 Limit 1 exceeded 1 Description Description The function is used when the CU 351 is to be able to receive a With this function, the CU 351 can monitor set limits of analog fault signal from an external contact.

  • Page 53: Pumps Outside Duty Range (4.4

    10. Set the minimum sensor value with , and save with 11.7.50 Pumps outside duty range (4.4.7) 11. Set the maximum sensor value with , and save with 12. Return by pressing twice. 13. Mark Measured value to be monitored with ., and press .

  • Page 54: Pressure Relief (4.4

    11.7.51 Pressure relief (4.4.8) Setting via control panel 1. Mark the Settings menu with 2. Mark Monitoring functions with , and press 3. Mark Pressure relief with , and press 4. Mark Go to setting of digital output with , and press 5.

  • Page 55: Functions, Cu 351 (4.5)

    11.7.52 Functions, CU 351 (4.5) 11.7.53 Display language (4.5.1) Fig. 98 Functions, CU 351 Fig. 99 Display language Description Description In this submenu, it is possible to make the basic settings of the Here the language for the CU 351 display is selected. CU 351.

  • Page 56: Display Units (4.5.2)

    11.7.54 Display units (4.5.2) Fig. 101 Example of selection of display units Fig. 100 Display units 6. Select the unit with , and save with A check mark shows that the unit has been selected. Description In this display, it is possible to select units for the various Factory setting parameters.

  • Page 57: Date And Time (4.5.3)

    7. Mark First day of week, Sunday or Monday with and save with Factory setting Local time. If the Control MPC has been without voltage for more than 20 days since it left the factory, the clock may have returned to the original setting: 01-01-2005 0:00.

  • Page 58: Ethernet (4.5.5)

    CU 351 can communicate with external units via an RS-485 interface (option). For further information, see fig. 107 and section 11.8.2 GENIbus. Communication is carried out according to the Grundfos bus protocol, GENIbus, and enables connection to a building management system or another external control system.
  • Page 59 In order to use dynamic assignment, the function must be activated. Click Use DHCP in the menu line. A check mark Grundfos recommends that you protect the next to the menu line shows that activation has been made. connection to the CU 351 according to your...
  • Page 60 See examples in fig. 107. For further information, contact Grundfos. The gateway may be a Grundfos CIU communication interface or a third-party gateway. For further information on the CIU, see WebCAPS, or contact Grundfos.
  • Page 61 Not shown 0-100 % signal** * The ambient temperature is typically the temperature in the room where the Control MPC is located. ** A 0-100 % signal from an external controller. It can for instance be a 0-10 V signal.
  • Page 62 Control MPC. - Cable is broken or short-circuited. Repair or replace the cable. CU 351 fault Connect the electricity supply. The Control MPC is stopped and cannot - Electricity supply disconnected. restart. - CU 351 defective. Contact Grundfos.
  • Page 63 Closed circuit current: 2.6 mA, DC 15. Taking out of operation Inputs for PTC sensors are electrically separated Switch off the main switch to take the Control MPC out of from the other inputs and outputs of the Control Note operation.
  • Page 67 Telefax: +46(0)31-331 94 60 Germany Tel.: +43-6246-883-0 GRUNDFOS GMBH México Switzerland Telefax: +43-6246-883-30 Schlüterstr. 33 Bombas GRUNDFOS de México S.A. de GRUNDFOS Pumpen AG Belgium 40699 Erkrath C.V. Bruggacherstrasse 10 N.V. GRUNDFOS Bellux S.A. Tel.: +49-(0) 211 929 69-0 Boulevard TLC No. 15 CH-8117 Fällanden/ZH...
  • Page 68 Thinking ahead makes it possible Innovation is the essence 96768036 1209 The name Grundfos, the Grundfos logo, and the payoff Be–Think–Innovate are registrated trademarks Repl. 96768036 0509 owned by Grundfos Management A/S or Grundfos A/S, Denmark. All rights reserved worldwide. www.grundfos.com...

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