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Version: V200925
Troubleshooting Guide for PSk2-7 to PSk2-40 pump systems
Troubleshooting Guide
for PSk2-7 to PSk2-40 pump
BERNT LORENTZ GmbH
Siebenstücken 24, 24558 Henstedt-Ulzburg, Germany,
Tel (+49) 0 4193 8806-700, www.lorentz.de
All specifications and information are given with good intent, errors are possible and products may be subject to change without
notice. Pictures may differ from actual products depending on local market requirements and regulations.
systems
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Summary of Contents for Lorentz PSk2-7
- Page 1 Version: V200925 Troubleshooting Guide for PSk2-7 to PSk2-40 pump systems Troubleshooting Guide for PSk2-7 to PSk2-40 pump systems BERNT LORENTZ GmbH Siebenstücken 24, 24558 Henstedt-Ulzburg, Germany, Tel (+49) 0 4193 8806-700, www.lorentz.de Page 1 / 22 All specifications and information are given with good intent, errors are possible and products may be subject to change without...
- Page 2 Troubleshooting Guide for PSk2-7 to PSk2-40 pump systems NOTE The trouble shooting of the PSk2-7 – PSk2-40 Controller should be done directly on the field when all cables are still connected (PV Generator, PV Disconnect, sensors, motor cables, etc.). The easiest way to do a trouble shooting of the new PSk2 Controller is with PumpScanner.
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Page 3: Table Of Contents
Version: V200925 Troubleshooting Guide for PSk2-7 to PSk2-40 pump systems No access to the Controller device with PumpScanner ................7 The pump is working (water coming out of the pump) ............7 1.1.1 Bluetooth connection ...................... 7 1.1.1.1 Mobile device ......................7 1.1.1.2... - Page 4 Version: V200925 Troubleshooting Guide for PSk2-7 to PSk2-40 pump systems 2.2.1.11 Pressure / liquid level sensor ................. 18 2.2.1.12 Constant pressure / flow control................18 2.2.1.13 PSU switching power source ................. 18 2.2.2 Advanced information (PumpScanner) ................. 18 2.2.2.1 Analog Input 1 Error & Analog Input 2 Error ............. 18 2.2.2.2...
- Page 5 Version: V200925 Troubleshooting Guide for PSk2-7 to PSk2-40 pump systems Quick Guide Access to PumpScanner The pump doesn’t work properly Go to Actual Data/Pump off reason Pump off reasons: --> Page 14 ➔ Tank full ➔ Source low ➔ Manual software switch off ➔...
- Page 6 Version: V200925 Troubleshooting Guide for PSk2-7 to PSk2-40 pump systems No access to the pump with PumpScanner Pump doesn’t work (no LED signals) Quick check of the voltage at the power input of the Controller → page 9 Check the voltage: at the PV Generator side at the power in - &...
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Page 7: No Access To The Controller Device With Pumpscanner
Version: V200925 Troubleshooting Guide for PSk2-7 to PSk2-40 pump systems 1. No access to the Controller device with PumpScanner The pump is working (water coming out of the pump) 1.1.1 Bluetooth connection 1.1.1.1 Mobile device In most cases the Bluetooth connection issue is related to the mobile device. -
Page 8: Malfunction Of The Controller Main Board
Version: V200925 Troubleshooting Guide for PSk2-7 to PSk2-40 pump systems 1.1.3 Malfunction of the Controller main board Cause: Defective component on the Controller main board Solution: The Controller main board has to be replaced PSk2-7 – PSk2-40 Controller main board... -
Page 9: The Pump Is Not Working (No Led Signals)
Version: V200925 Troubleshooting Guide for PSk2-7 to PSk2-40 pump systems The pump is not working (no LED signals) 1.2.1 Check the open circuit voltage of the solar generator ▪ Inspect (with a multimeter) the open circuit voltage of the solar generator ▪... -
Page 10: Inspection Of The Psk2 Controller Boards For Short Circuit
Version: V200925 Troubleshooting Guide for PSk2-7 to PSk2-40 pump systems 1.2.5.3 Inspection of the PSk2 Controller boards for short circuit ▪ Use an external power supply and set the current limit at 500 mA and the voltage at 24 V ▪... -
Page 11: Inspection Of The Fan For Short Circuit
Version: V200925 Troubleshooting Guide for PSk2-7 to PSk2-40 pump systems Bluetooth LED (green flashing LED) Powered Controller main board (red LED) Figure 6: LED signals on the PSk2 Controller main board Two LED signals should be visible on the PSk2 Controller main board in case there is no short circuit. -
Page 12: Inspection Of The Internal 24 V Power Supply Board
Version: V200925 Troubleshooting Guide for PSk2-7 to PSk2-40 pump systems Solution Switch the PV Disconnect off and disconnect the PSk2 Controller Replace the fan following the guide for replacing the DC brushless fan in a PSk2 series pump controller ... -
Page 13: Inspection Of The Io Board
Version: V200925 Troubleshooting Guide for PSk2-7 to PSk2-40 pump systems In case the Controller still does not show any LED signals the Controller Main Board might be defective/ shorted CAUTION – Follow the repair guide of the PSk2 DC-DC Power supply for correct replacement. -
Page 14: Access To The Controller Device With Pumpscanner
Version: V200925 Troubleshooting Guide for PSk2-7 to PSk2-40 pump systems 2. Access to the Controller device with PumpScanner The pump doesn’t work properly (water coming out of the pump) 2.1.1 No LED signals on the front side of the Controller when the pump is running The system is connected to the PumpScanner App and pumping water out of the well even though there are no LED signals on the front side of the Controller. -
Page 15: Pump Off Reasons (Pumpscanner)
Version: V200925 Troubleshooting Guide for PSk2-7 to PSk2-40 pump systems • Tank full – Remote Switch • Source low • Water sensor • Manual software switch off • Wrong input voltage • Timer • Sun Sensor • PSU Sun Sensor •... -
Page 16: Water Sensor
Version: V200925 Troubleshooting Guide for PSk2-7 to PSk2-40 pump systems Defective Remote Switch Defective I/O Board Solutions: Measure the voltage at the terminal clamps 3 & 4 (the voltage should be around 5 V) Set a jumper at the terminals 3 & 4 (if the pump still does not run then the I/O is defective) ... -
Page 17: Sun Sensor
Version: V200925 Troubleshooting Guide for PSk2-7 to PSk2-40 pump systems 2.2.1.7 Sun Sensor A Sun Sensor error can be due to the following root causes. Causes: Low irradiation Loose connection Broken cable Defective Sun Sensor Wrong serial number of the Sun Sensor ... -
Page 18: Pressure / Liquid Level Sensor
Version: V200925 Troubleshooting Guide for PSk2-7 to PSk2-40 pump systems Causes: Low irradiation Low power Solution: Check the irradiation level (cloudy or sunny conditions) Check the wiring of the PV generator Check the voltage and the current at the power input of the PSk2 Controller 2.2.1.11 Pressure / liquid level sensor... -
Page 19: Overtemperature
When the SmartPSU permanently runs into this error, it may need repair. As first testing the AC source quality should be inspected, an inefficient grid will frequently end in this error. A “Weak Grid Mode” option can be activated for specific situations, please contact LORENTZ support. -
Page 20: Psu Phase Missing
Version: V200925 Troubleshooting Guide for PSk2-7 to PSk2-40 pump systems 2.2.2.7 PSU Phase Missing The PSk2 Controller detected that at least one of the three AC phases that are connected to the SmartPSU has a problem. The grid status needs to be checked. -
Page 21: Mmpt Overcurrent
Version: V200925 Troubleshooting Guide for PSk2-7 to PSk2-40 pump systems Solution Check the motor cable connection Switch the PV Disconnects off and on Switch the PV Disconnects off and disconnect the motor cables from the Controller then... -
Page 22: Malfunction Of The Interface Board / Filter Board
Version: V200925 Troubleshooting Guide for PSk2-7 to PSk2-40 pump systems Malfunction of the interface board / filter board 2.3.1 Malfunction of the interface board A malfunction of the interface board could lead to sporadic run/stops of the system or in some cases to a complete detention of the pump.
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