Grundfos CUE Series Installation And Operating Instructions Manual
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Grundfos CUE Series Installation And Operating Instructions Manual

Grundfos CUE Series Installation And Operating Instructions Manual

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GRUNDFOS INSTRUCTIONS
CUE, 110-250 kW
Installation and operating instructions

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Summary of Contents for Grundfos CUE Series

  • Page 1 GRUNDFOS INSTRUCTIONS CUE, 110-250 kW Installation and operating instructions...
  • Page 2 Declaration of Conformity We Grundfos declare under our sole responsibility that the products CUE, 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

    Connecting the signal relays Connecting the MCB 114 sensor input module 2.2 Applications EMC-correct installation The CUE series and Grundfos standard pumps are a supplement RFI filters to the Grundfos E-pumps range with integrated frequency Output filters converter.

  • Page 4: Safety And Warnings

    150 m for screened cables. In case of longer cables, contact supply and other input voltages must be Grundfos. switched off at least for as long as stated below. The CUE is designed for a motor cable with a maximum cross- Voltage Min.

  • Page 5: Mechanical Installation

    5. Mechanical installation 5.3 Space requirements and air circulation CUE units can be mounted side by side, but as a sufficient air The individual CUE cabinet sizes are characterised by their circulation is required for cooling these requirements must be enclosures.

  • Page 6: Mounting

    5.4 Mounting 5.4.3 Mounting on the floor 5.4.1 Mounting the drip shield Warning To comply with the IP21 rating, a separate drip shield is to be The CUE is top-heavy and may fall over if the fitted: pedestal is not anchored to the floor. 1.

  • Page 7: Electrical Connection

    The CUE and the supply system must be protected against short- circuit. 6.2.3 Gland plate Grundfos demands that the back-up fuses mentioned in section Cables are connected through the gland plate from the bottom. 16.6 are used for protection against short-circuit.
  • Page 8 6.2.4 Motor connection For information about enclosure, see table in section 16.1. The motor cable must be screened for the CUE to Caution meet EMC requirements. 1. Connect the earth conductor to terminal 99 (PE). See fig. 14. 2. Connect the motor conductors to the terminals 96 (U), 97 (V), Mains: 98 (W), see fig.

  • Page 9: Connecting The Signal Terminals

    6.3 Connecting the signal terminals 6.3.2 Minimum connection, signal terminals Operation is only possible when the terminals 18 and 20 are As a precaution, signal cables must be separated connected, for instance by means of an external on/off switch or a Caution from other groups by reinforced insulation in short wire.

  • Page 10: Connecting The Signal Relays

    6.3.5 Setting the analog inputs, terminals 53 and 54 Remove the control panel to set the contact. See fig. 23. The contacts A53 and A54 are positioned behind the control panel and used for setting the signal type of the two analog inputs.

  • Page 11: Connecting The Mcb 114 Sensor Input Module

    6.5 Connecting the MCB 114 sensor input module 6.6 EMC-correct installation The MCB 114 is an option offering additional analog inputs for the This section gives guidelines for good practice when installing the CUE. CUE. Follow these guidelines to meet EN 61800-3, first environment.

  • Page 12: Rfi Filters

    6.7 RFI filters Figures 30 and 31 show installations with and without filter and where to use screened and unscreened cable. To meet the EMC requirements, the CUE comes with the following types of built-in radio frequency interference filter (RFI). Unscreened cable screened motor cable Voltage...

  • Page 13: Operating Modes

    7. Operating modes 8.0.2 Controlled operation (closed loop) The following operating modes are set on the control panel in Proportional menu OPERATION, display 1.2. See section 10.5.2. differential pressure. Operating mode Description The differential pressure is reduced The pump is running in the control mode Normal at falling flow rate selected...

  • Page 14: Menu Overview

    9. Menu overview START-UP GUIDE 0. GENERAL 1. OPERATION 1/16 2/16 0.24 3/16 8/16 4/16 9/16 1.5-1.9 5/16 10/16-14/16 Automatic or manual setting of the direction of rotation 6/16 15/16 1.10-1.14 7/16 16/16 Fig. 34 Menu overview Menu structure The CUE has a start-up guide, which is started at the first start- up.
  • Page 15 2. STATUS 3. INSTALLATION 2.10 3.12 2.11 3.13 2.12 3.15 2.13 3.3A 3.16 2.14 3.17 2.15 3.18 2.16 3.19 2.17 3.20 3.21 3.22 3.10 3.23 3.11 3.24...

  • Page 16: Setting By Means Of The Control Panel

    10. Setting by means of the control panel Adjusting the display contrast Press OK and + for darker display. 10.1 Control panel Press OK and – for brighter display. Indicator lights Warning The operating condition of the pump is indicated by the indicator The on/off button on the control panel does not lights on the front of the control panel.
  • Page 17 10.3.1 Welcoming display 10.3.6 Supply voltage (5/16) • Press OK. You will now be guided through the start-up guide. Select supply voltage according to the rated supply voltage of the installation site. 10.3.2 Language (1/16) Unit 1 x 200-240 V: * Unit 3 x 200-240 V: Unit 3 x 380-500 V: •...
  • Page 18 10.3.10 Control mode (8/16) Constant pressure: Constant flow rate: • 0-2.5 bar • 1-5 m • 0-4 bar • 2-10 m • 0-6 bar • 6-30 m • 0-10 bar • 15-75 m • 0-16 bar • Other. • 0-25 bar •...
  • Page 19 The CUE automatically tests and sets the correct direction of 10.3.18 General settings are completed (16/16) rotation without changing the cable connections. This test is not suitable for certain pump types and will in certain cases not be able to determine for certainty the correct direction of rotation.

  • Page 20: Menu General

    10.3.20 Manual setting when the direction of rotation is not visible (13/16) It must be possible to observe the head or flow rate. The second test is completed. Write down the pressure and/or flow rate, and state which test gave the highest pump performance: •...

  • Page 21: Menu Operation

    10.4.3 Copy of settings Alarm (1.3) In case of an alarm, the cause will appear in the display. It is possible to copy the settings of a CUE and reuse them in See section 15.1 Warning and alarm list. another one. Options: •...

  • Page 22: Menu Status

    10.6 Menu STATUS 10.6.6 Speed (2.6) The displays appearing in this menu are status displays only. It is not possible to change or set values. The tolerance of the displayed value is stated under each display. The tolerances are stated as a guide in % of the maximum values of the parameters.

  • Page 23: Menu Installation

    10.6.11 Time until replacement of motor bearings (2.11) 10.6.15 Accumulated flow (2.15) This display is only shown if display 2.10 is not shown. This display is only shown if a flowmeter has been configured. This display shows when to replace the motor bearings. The This display shows the value of the accumulated flow and the controller monitors the operating pattern of the pump and specific energy for the transfer of the pumped liquid.
  • Page 24 10.7.2 Controller (3.2) System/application Heating Cooling system system The CUE has a factory setting of gain (K ) and integral time (T SP, SP-G, SP-NE: 0.5 However, if the factory setting is not the optimum setting, the gain and the integral time can be changed in the display. •...
  • Page 25 • FC MC. If GENIbus is selected, the communication is set according to the Grundfos GENIbus standard. FC and FC MC is for service purpose only. 10.7.7 Pump number (3.8) This display shows the GENIbus number. A number between 1 and 199 can be allocated to the pump.
  • Page 26 2. A flow switch connected to the digital input. ® • a Grundfos Liqtec dry-running switch 1. Low-flow detection function • a pressure switch installed on the suction side of a pump The pump will check the flow regularly by reducing the speed for •...
  • Page 27 When restarting, the pump will react in the following way: 10.7.11 Constant level with stop function (3.13) 1. If the flow is higher than the low-flow limit, the pump will return to continuous operation at constant pressure. 2. If the flow is lower than the low-flow limit, the pump will continue in start/stop operation.
  • Page 28 10.7.12 Sensor 1 (3.15) Activate the duty/standby function as follows: 1. Connect one of the pumps to the mains supply. Set the duty/standby function to Not active. Make the necessary settings in menu OPERATION and INSTALLATION. 2. Set the operating mode to Stop in menu OPERATION. 3.
  • Page 29 10.7.16 Motor bearing monitoring (3.19) 10.7.18 Temperature sensor 1 (3.21) The motor bearing monitoring function can be set to these values: This display is only shown if an MCB 114 sensor input module has been installed. • Active Select the function of a Pt100/Pt1000 temperature sensor 1 •...

  • Page 30: Setting By Means Of Pc Tool E-Products

    The overview shows functions in connection with closed contact. Special setup requirements differing from the settings available Terminal Type Function via the CUE require the use of Grundfos PC Tool E-products. This again requires the assistance of a Grundfos service technician or DI 1 • Start/stop of pump engineer.

  • Page 31: External Setpoint

    (sensor min.) to the setpoint set via the CUE menu. See fig. 45. The CUE supports serial communication via an RS-485 input. The communication is carried out according to the Grundfos Setpoint GENIbus protocol and enables connection to a building management system or another external control system.

  • Page 32: Fault Finding

    15.1 Warning and alarm list menu OPERATION. The latest five alarms and latest five warnings can be found in the log menus. Status Contact a Grundfos technician if an alarm occurs repeatedly. 15.2.1 Warning Operat- Reset- Code and display text...

  • Page 33: Technical Data

    16. Technical data 16.1 Enclosure The individual CUE cabinet sizes are characterised by their enclosures. The table shows the relationship of enclosure class and enclosure type. Example: Read from the nameplate: • Supply voltage = 3 x 380-500 V. • Typical shaft power = 110 kW.

  • Page 34: Surroundings

    16.3 Surroundings Relative humidity 5-95 % RH Ambient temperature Max. 45 °C Average ambient temperature over 24 hours Max. 40 °C Minimum ambient temperature at full 0 °C operation Minimum ambient temperature at reduced –10 °C operation Temperature during storage and –25 to 65 °C transportation Storage duration...
  • Page 35 16.6.3 UL fuses and conductor cross-section to mains and motor Fuse type Maximum conductor Typical shaft power P2 cross-section Bussmann Bussmann Bussmann Bussmann SIBA Littel Fuse Ferraz-Shawmut E1958 E4273 E4274 E125085 E180276 E71611 E60314 [kW] [AWG] JFHR2 T/JDDZ H/JDDZ JFHR2 RKI/JDDZ JFHR2 JFHR2...

  • Page 36: Inputs And Outputs

    This product or parts of it must be disposed of in an environmentally sound way: 1. Use the public or private waste collection service. 2. If this is not possible, contact the nearest Grundfos company or service workshop. Subject to alterations.
  • Page 37 Telefax: +46-31 331 94 60 Germany Tel.: +43-6246-883-0 México Switzerland GRUNDFOS GMBH 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.
  • Page 38 Being responsible is our foundation Thinking ahead makes it possible Innovation is the essence 96783675 0208 www.grundfos.com...

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