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Grundfos NBE 2000 Series Installation And Operating Instructions Manual
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Grundfos NBE 2000 Series Installation And Operating Instructions Manual

Grundfos NBE 2000 Series Installation And Operating Instructions Manual

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NBE/NBE Series 2000, NKE/NKE Series
2000, NBSE/NBSE Series 2000
Installation and operating instructions
NBE, NKE, NBSE with integrated
CUE
Installation and operating instructions
(all available languages)
http://net.grundfos.com/qr/i/93238783
GRUNDFOS INSTRUCTIONS

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  • Page 1 GRUNDFOS INSTRUCTIONS NBE/NBE Series 2000, NKE/NKE Series 2000, NBSE/NBSE Series 2000 Installation and operating instructions NBE, NKE, NBSE with integrated Installation and operating instructions (all available languages) http://net.grundfos.com/qr/i/93238783...
  • Page 3 NBE/NBE Series 2000, NKE/NKE Series 2000, NBSE/NBSE Series 2000 English (US) Installation and operating instructions ............4 Limited consumer warranty .
  • Page 4 References ......5 safety information, if the motor is not a Grundfos motor.
  • Page 5 Short Circuit Current Rating The supply voltage must also be equal to or higher than the motor rated voltage. For Grundfos pumps, according to the equipped CUE and motor, the supply voltage should be one of below: • 3 x 200-240 V (CUE rated 3 x 200-240V, motor rated 3 x 200 V) •...
  • Page 6 3. Receiving the product WARNING Crushing of feet Death or serious personal injury ‐ Use safety shoes during transport and avoid stacking the boxes. CAUTION Heavy lifting Minor or moderate personal injury ‐ Use proper lifting equipment when handling the product.
  • Page 7 The OFF button of the operating panel does not disconnect installation and operation instruction of the motor for motor CUE from the power supply and must therefore not be used as safety information, if the motor is not a Grundfos motor. a safety switch. WARNING •...
  • Page 8 CUE and the supply system must be protected against short circuit. 0.75 - 3.7 kW 5.5 - 45 kW 200-240 V Grundfos requires that the backup fuses mentioned in section (1 - 5 hp) (7.5 - 60 hp) Cable cross-section to signal terminals are used for protection 0.55 - 7.5 kW...
  • Page 9 During startup and in asymmetrical supply systems, the leakage 6.2 EMC-correct installation current can be higher than normal and may cause the ELCB/RCD to trip. The motor cable must be screened for CUE to meet EMC Related information requirements. 11.4 Electrical data This section provides guidelines for good practice when installing 6.1.4 Motor protection CUE.
  • Page 10 6.4 Mains and motor connection Check that the mains voltage and frequency correspond to the values on the nameplate of CUE and the motor. The motor cable must be screened for CUE to meet EMC requirements. Example of connection of a 3-conductor bus cable with screen connected at both ends Make sure that the pump is suitable for the power supply of the installation site.
  • Page 11 6.4.3 Mains connection, enclosures A4 and A5 Torque Nm [ft-lb] Enclosure Mains Motor Protective earth Relay 1.8 (1.3) 1.8 (1.3) 3 (2.2) 0.6 (0.4) 1.8 (1.3) 1.8 (1.3) 3 (2.2) 0.6 (0.4) 1. Connect the earth conductor to terminal 95 (PE). See the figure below.
  • Page 12 3. Fix the screened cable with a cable clamp. 6.4.8 Motor connection, enclosures C1 and C2 1. Connect the earth conductor to terminal 99 (PE). See the figure below. 2. Connect the motor conductors to terminals 96 (U), 97 (V) and 98 (W). 3.
  • Page 13 6.5 STO installation, optional Pos. Description Reset button DANGER Safety relay (category 3, PL d or SIL2) Exposure to high pressure or toxic liquids Death or serious personal injury Emergency stop button ‐ Failure to remove the jumper will disable the STO Short-circuit protected cable if the product is not installed function and the motor might not stop as intended and inside an IP54 cabinet.
  • Page 14 6.5.1 Restart behaviour after STO activation By default the STO function is set to unintended-restart prevention behaviour. To terminate STO and resume normal operation with manual reset, do the following: • Reapply 24 V DC supply to terminal 37. • Send a reset signal via bus, Digital I/O or the reset button.
  • Page 15 Terminal Type Function DI 4 Digital input, programmable Safe stop Safe stop Frame for analog output AO 1 Analog output, 0-20 mA +10 V out Supply to potentiometer External setpoint, 0-10 V, 0/4-20 AI 1 Sensor input, sensor 1, 0/4-20 AI 2 Common frame for analog inputs...
  • Page 16 6.6.2 Access to signal terminals 6.6.4 Setting the analog inputs, terminals 53 and 54 All signal terminals are behind the terminal cover of the CUE front. Contacts A53 and A54 are positioned behind the operating panel Remove the terminal cover as shown in the figure below. and used for setting the signal type of the two analog inputs.
  • Page 17 6.7 Connecting the signal relays 6.7.1 Access to signal relays The relay outputs are positioned as shown in below figures. As a precaution, signal cables must be separated from other groups by reinforced insulation in their entire lengths. 03 02 Terminals for signal relays in normal state (not activated) Pos.
  • Page 18 STO terminal 37 must be deactivated to start the motor. A successful commissioning test of the STO function is 6.8 BACnet MS/TP connection required after the initial installation and after each Grundfos CUE has integrated BACnet MS/TP. For detailed subsequent change to the installation. configuration, go to https://www.grundfos-eica.com or scan the QR code.
  • Page 19 8. Control functions Pos. Buttons Description [HAND ON]: starts the frequency converter The display contrast can be adjusted by pressing [Status] in local control. and then pressing [Up] or [Down]. HAND • An external stop signal by control input or serial communication overrides the local [Hand On] function.
  • Page 20 Example: To get to the menu "1-28 Motor Rotation Check", you must do the following: 1. Navigate to "1-** Load and Motor", and press [OK]. 2. Use the [Up] and [Down] buttons to navigate to "1-2* Motor Data", and press [OK]. 3.
  • Page 21 If you choose a sensor version pump, a differential pressure for minimum and maximum speed. Min. sensor is installed by Grundfos. For some functions mentioned in this section and section Other functions, additional sensors or accessories may be needed. Related information Example: Maximum curve operation can for instance be used in 8.5 Control modes...
  • Page 22 The outlet pressure is kept constant at high flow rate (Q > Q • a non-return valve There is on/off operation at low flow rate. • a diaphragm tank. The non-return valve must always be installed before the pressure sensor. Pos.
  • Page 23 8.5.2.2 Constant differential pressure Pump The differential pressure of the pump is kept constant, independently of the flow rate. Differential pressure from two sensors Δp Pos. Description Pos. Description Sensor 1 Sensor 2 The sensor 1 is connected to the sensor input 1. The sensor 2 is connected to the sensor input 2 of an MCB 114 Constant differential pressure, pump sensor input module.
  • Page 24 8.5.2.4 Constant flow rate Pos. Description The flow rate is kept constant, independently of the head. The pump is controlled according to a differential pressure measured across the pump. This means that the pump system offers a flow-compensated differential pressure in the Q-range of 0 to Q represented by the quadratic curve in the QH diagram.
  • Page 25 The pump is controlled according to a constant liquid level. This 8.5.2.7 Constant other value means that the pump offers a constant level in the Q-range of Q Any other sensor signals that can be read through the terminal to Q , represented by the quadratic line in the QH diagram.
  • Page 26 8.5.3.2 Setpoints The Safe Torque Off is an optional built-in safety function for the The setpoint is normally pre-configured in Grundfos and changed CUE. The STO is the required base for drive-based functional via the Favourites menu on the CUE operating panel. If needed, safety as defined per the EN IEC 61800-5-2, as the STO function the setpoint can be influenced via the external setpoint input.
  • Page 27 Inverse external setpoint The actual setpoint is an inverse linear function of the external setpoint signal and is activated in the Main menu parameter 200-10 External setpoint. 10 V 0/4 mA 20 mA External setpoint 10 V 0/4 mA Pos. Description 20 mA Actual setpoint...
  • Page 28 External setpoint with stop function Pos. Description The actual setpoint with stop is a linear function of the external Actual setpoint setpoint signal above 20 % signal and on/off operation below 20 % Maximum signal. Linear with stop is selected in the Main menu, parameter 200-10 External setpoint.
  • Page 29 8.5.3.3 PID controller Suggested controller settings The CUE has a built-in PID controller for speed control of the pumps. The factory setting of gain (K ) and integral time (T ) are System/ Heating Cooling automatically adjusted to suggested settings based on the control application system system...
  • Page 30 = Distance in m (ft) between heat exchanger and sensor 8.5.3.4 Duty/standby, multi-master cascade Use the startup guide for setting the multi-pump system with the The setting of gain (K ) and integral time (Ti) can be manually following options: changed in the operating panel via the Main menu group 20-9x PID Controller.
  • Page 31 100% 100% 100% 100% 100% 100% 100% 100% The line supply (A) of four pumps connected in parallel and controlled via the Modbus RTU The master driver determines the sequence of pump start and Fixed-speed cascade stop based on the running time of each pump. If the currently The fixed-speed cascade function is used for cascading additional running pump is unable to maintain the pressure, the next fixed-speed pumps.
  • Page 32 Procedure with pump curve 10-second delay. The pump cannot build up the setpoint pressure Go to the Grundfos Product Center and enter the part number for due to water shortage. your pump: The end of curve tolerance, delay and protection function can be 1.
  • Page 33 8.5.3.6 Start adjustments Start delay The start delay after power-on is a delay between power being applied and the pump starting. Pos. Description Start delay after power-on H tolerance Pos. Description Dry-running detection based on the end of curve also gives an Power-on alarm, if there is actual water and the system head curve shifts to Start CUE...
  • Page 34 Note that timers for the parameter 1-71 Start Delay and the Pos. Description parameter 1-79 Pump Start Max. Time to Trip start at the same Speed time when the start command is issued. This entails that if the start delay is more than or equal to the pump start max. time, the CUE Maximum speed never starts.
  • Page 35 8.5.3.8 Operation Ramps The CUE startup guide incorporates adjustment of two types of ramp: 100 % • ramp-up and ramp-down • initial and final ramps. Setting of the minimum and maximum curves in percentage of the maximum performance Pos. Description Pump dependent speed range Nominal speed Actual speed range...
  • Page 36 Standstill heating 8.5.3.9 Limit exceed Standstill heating preheats the motor during standstill to avoid The CUE has two independent limit-exceed functions. condensation within the motor. These are monitoring functions offering information, warning, alarm When the pump is stopped by a stop command, a current is applied or change of operating mode when a low or high limit is exceeded.
  • Page 37 • all Pt100/Pt1000 inputs (this requires an MCB 114 sensor input 8.5.3.10 Digital and Analog I/O module) The CUE digital inputs can be configured to either PNP or NPN mode in the Main menu, parameter 5-00 Digital I/O Mode: • internal measured values: Power consumption (P2), Motor speed or Motor current.
  • Page 38 • Drive ready/remote control: The CUE is ready for operation • Preventive Maintenance: One or more of the preventive and is in auto-on mode. maintenance events have passed the time for the specified action. • Standby/no warning: The CUE is ready for operation. No start or stop command has been given (start/disable).
  • Page 39 Displays 9. Servicing the product Displays MCB 114 input Never stand on the CUE, motor and the pump. Reading Setting Sensor 2 3.16 Temperature sensor 1 2.12 3.21 CAUTION Temperature sensor 2 2.13 3.22 Electric shock Minor or moderate personal injury ‐...
  • Page 40 Conduct a functional test every 12 months to detect any failure or malfunction of the STO functionality. To conduct the functional test, perform the following steps: • Remove the 24 V DC voltage supply at terminal 37. • Check if the operating panel displays the alarm "Safe Stop A68".
  • Page 41 10. Fault finding the product 10.1 Overview of warnings and alarms Type LED indicator Warning Yellow Alarm Flashing red Trip lock Yellow and red Number Description Warning Alarm Alarm, trip lock 10 V low ● Live zero error (●) (●) No motor (●) Mains phase loss...
  • Page 42 Number Description Warning Alarm Alarm, trip lock Speed limit ● AMA calibration failed ● AMA check U and I ● AMA low I ● AMA motor too large ● AMA motor too small ● AMA parameter out of range ● AMA interrupted by user ●...
  • Page 43 Number Description Warning Alarm Alarm, trip lock Illegal power section configuration ● ● Temperature of the rectifier heat sink ● New spare part ● New type code ● ● The flow is not confirmed ● Flow switch failure ● 2004 External fault ●...
  • Page 44 11. Technical data The pump comes in a packaging which is not suitable for outdoor storage. 11.1 Enclosure The below tables show an overview of the different enclosure classes based on typical motor power and and mains supply 11.3 Mechanical data ranges.
  • Page 45 11.3.4 Non-UL fuses and conductor cross-sections to mains Maximum Typical shaft Maximum fuse and motor, for installations outside North America conductor Fuse type power P2 size cross-section Maximum 200 (300) 2 × 185 Typical shaft Maximum fuse Fuse type conductor power P2 size 250 (350)
  • Page 46 11.3.5 UL fuses and conductor cross-sections to mains and motor, for installations in North America Fuse type Maximum Typical shaft conductor Bussmann SIBA Littel Fuse Ferraz-Shawmut power P2 cross-section RK1/ RK1/SIBA RK1/E1958/ J/E4273 T/ T/E4274 H/ Bussmann CC/Littel Fuse RK1/E60314 E180276 RKI/ JFHR2 JDDZ...
  • Page 47 Fuse type Maximum Typical shaft conductor Bussmann SIBA Littel Fuse Ferraz-Shawmut power P2 cross-section RK1/ RK1/SIBA RK1/E1958/ J/E4273 T/ T/E4274 H/ Bussmann CC/Littel Fuse RK1/E60314 E180276 RKI/ JFHR2 JDDZ JDDZ E125085 E71611 JFHR2 JFHR2 [kW (hp)] [AWG] JDDZ JFHR2 Ferraz- Bussmann SIBA Shawmut...
  • Page 48 11.4 Electrical data Input resistance, R Approx. 10 kΩ Mains supply (L1, L2, L3) Maximum voltage ± 20 V Current signal A53 = "I" Supply voltage 200-240 V ± 10 % Current range 0-20, 4-20 mA Supply voltage 460-500 V ± 10 % Input resistance, R Approx.
  • Page 49 EN 50178 1. Use the public or private waste collection service. Low Voltage Directive (2006/95/EC) EN 61800-5-1 2. If this is not possible, contact the nearest Grundfos company or service workshop. EN ISO 13849-1, Safety of machinery IEC 62061, IEC...
  • Page 50 For New Jersey there is no prohibition on returning a defective product at a purchaser’s cost. If Grundfos is required by applicable State law to pay for the cost of shipment under applicable State law, then a purchaser should contact a Grundfos Authorized Service Partner to arrange for shipment.
  • Page 51 Para el caso de productos que no sean de consumo, consulte los términos de la garantía de Grundfos definidos en la cláusula 10 de los términos y condiciones de venta de productos y servicios de Grundfos para los EE. UU., disponibles en https://www.grundfos.com/legal/grundfos-customer-terms/usa-grundfos-general-terms-for-sales-of-products-and-services.
  • Page 52 (excluding the application of any Grundfos original spare parts); • accidental or intentional damage or misuse of the Products or services by the Purchaser or a third party (not acting on Grundfos’ behalf); or •...
  • Page 53 Produit (« Période de garantie »). Lors de l'achat d'un Produit Grundfos en ligne, il est important de vérifier la date de fabrication et la durée de la garantie auprès du vendeur, car le Produit pourrait ne plus être couvert par cette garantie limitée du fabricant.
  • Page 54 2941 Brighton Road Oakville, Ontario L6H 6C9 Tel.: +1-905 829 9533 Fax: +1-905 829 9512 Mexico Bombas GRUNDFOS de México S.A. de C.V. Boulevard TLC No. 15 Parque industrial Stiva Aeropuerto Apodaca, N.L. 66600 Tel.: +52-81-8144 4000 Fax: +52-81-8144 4010...
  • Page 55 93238783 06.2025 ECM: 1425235 www.grundfos.com...

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