Grundfos CU 202 Installation And Operating Instructions Manual
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Summary of Contents for Grundfos CU 202
- Page 1 GRUNDFOS INSTRUCTIONS CU 202 Installation and operating instructions CU 202 Installation and operating instructions (all available languages) http://net.grundfos.com/qr/i/92852547...
- Page 3 CU 202 English (GB) Installation and operating instructions ........4...
- Page 4 Configuring the IO terminals using way: Grundfos GO ....16 SIGNAL WORD Control functions ....17 Description of the hazard Operating panel .
- Page 5 • back cover • cable glands 2.2 Intended use CU 202 is intended for controlling submerged SQFlex pumps using powerline communication. The input signals are received from various sensors. CU 202 is intended for renewable power systems. 2.3 Features The control unit features among others the following functions: •...
- Page 6 2.5 Application types signalling between the control unit and the pump. You can choose between two application types: • Filling • Emptying. You can set the application type with Grundfos GO. Filling Pos. Description Stop level Start level Dry-running level In the filling application, the pump is installed in a tank or well from where it pumps the liquid.
- Page 7 CAUTION Minor or moderate personal injury ‐ Do not install damaged product. 2. If parts are damaged or missing, contact the local Grundfos sales company immediately. 3.2 Scope of delivery The box contains the following items: • Control unit •...
- Page 8 4. Installation requirements Pos. Description Max. current WARNING Electric shock Production site Death or serious personal injury Approvals and markings ‐ Switch off the power supply before Enclosure class starting any work on the product. Make sure that the power supply cannot be switched on unintentionally.
- Page 9 Changes or modifications made to this • Make sure that the ambient temperature is within equipment not expressly approved by the limits. Grundfos may void the FCC authorization • The product must be easily accessible. to operate this equipment. •...
- Page 10 5. Mechanical installation Place the front cover above the control unit, if possible. This way, you do not need to remove the flat cable between the front cover and the control unit. 5.1 Mounting the rubber seals 1. Loosen the screws. 1.
- Page 11 Use an antistatic service kit when handling The control unit is supplied with special electronic components. This prevents inserts for the PG cable entries. The static electricity from damaging the special inserts are suitable for flat cables components. and single-core cables. In addition, cable ties can be used to 1.
- Page 12 Changes or modifications not expressly ‐ Make sure that the input voltage does approved by Grundfos may void the user's not exceed 300 VDC or 240 VAC. authority to operate the equipment. ‐ Electrical connections must be carried out according to the wiring diagrams.
- Page 13 3. Before switching the power on, check all voltages Terminal block Torque [Nm (ft-lb)] with a multimeter and make sure that the input Pump supply 1.2 - 1.5 (0.88 - 1.1) voltage does not exceed 300 VDC or 240 VAC. Power supply 1.2 - 1.5 (0.88 - 1.1) 4.
- Page 14 Grundfos bus protocol, GENIbus, and is two-way communication. The RS-485 input can be changed to Modbus protocol via Grundfos GO for third party connection. • For a not shielded wire, attach it directly to the terminals, the earth wire can be connected to The RS-485 input is a low-voltage circuit.
- Page 15 Backup, terminals 14 and 15 For monitoring purposes, you can connect a 24 V backup for the CU 202. This backup is not able to power the pump. 120Ω Open Related information...
- Page 16 Android devices. 1. Press and hold the connect button on the operating panel for 15 seconds. Wait for the blue 1. Open Grundfos GO on your device. Make sure LED to switch off. that Bluetooth is enabled.
- Page 17 OK button: • Press this button to save changed values. Connect symbol: If the symbol is lit, the control unit is connected to Grundfos GO. Connect button: • Press this button to connect the control unit to Grundfos GO via Bluetooth.
- Page 18 8.2 Grundfos Eye Grundfos Eye indicator light Indication Description Power on Two opposite green lights are running in the pumping direction. The pump is running. Warning One yellow light is permanently on. The pump has been stopped manually. Alarm Two opposite horizontal red lights are flashing simultaneously.
- Page 19 10.1 Updating the product software New features and functions can be made available during the product's life cycle. 1. Contact Grundfos to get your product software updated. 10.2 Replacing the battery CAUTION Fire and chemical leakage Minor or moderate personal injury ‐...
- Page 20 • Check and adjust the level switch setting with Grundfos GO. The control mode is not compatible with the • Check and adjust the control mode with Grundfos application. 11.1.4 Code 32 (Overvoltage) Cause Remedy The supply voltage has been or is too high.
- Page 21 11.1.6 Code 46 (External warning from DI) Cause Remedy An external warning is activated via the digital input. • Check the device connected to the external digital input. 11.1.7 Code 48 (Overload) Cause Remedy The pump is clogged. • Remove the blockage. The blockage causes the motor current to rise, which •...
- Page 22 The configured parameter for limit 1 has exceeded its • Check the input. limit set by the user. • Change the configuration by adjusting the limits set in Grundfos GO. 11.1.17 Code 133 (Limit 2 exceeded) Cause Remedy The configured parameter for limit 2 has exceeded its •...
- Page 23 11.1.19 Code 165 (Signal outside range, analog input 1) Cause Remedy The electrical signal for Analog input 1 present in the • In Grundfos GO, ensure that the configured range product is outside its range. corresponds to the physical application type. • Check the sensor signal.
- Page 24 11.1.25 Code 226 (Communication fault, I/O module) Cause Remedy The IO module is defective. • Contact Grundfos. 11.1.26 Code 229 (Water on floor) Cause Remedy The sensor detects water on the floor. • Check for water leakage. 11.1.27 Code 248 (Fault, battery/UPS)
- Page 25 14. Disposing of the product 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.
- Page 26 Argentina Columbia Hong Kong Bombas GRUNDFOS de Argentina S.A. GRUNDFOS Colombia S.A.S. GRUNDFOS Pumps (Hong Kong) Ltd. Ruta Panamericana km. 37.500industin Km 1.5 vía Siberia-Cota Conj. Potrero Unit 1, Ground floor, Siu Wai industrial 1619 - Garín Pcia. de B.A.
- Page 27 Lithuania Serbia Turkey GRUNDFOS Pumps UAB Grundfos Srbija d.o.o. GRUNDFOS POMPA San. ve Tic. Ltd. Smolensko g. 6 Omladinskih brigada 90b Sti. LT-03201 Vilnius 11070 Novi Beograd Gebze Organize Sanayi Bölgesi Tel.: + 370 52 395 430 Tel.: +381 11 2258 740...
- Page 28 92852547 xx.2023 www.grundfos.com...
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