- Siemens Soft Starter 3rw30 Manual
- Siemens Sirius Soft Starter 3rw40 Manual Pdf
- Siemens Soft Start Manual
Siemens Sirius Soft Starter 3RW44 failure
Siemens Soft Starter 3rw30 Manual
Siemens Sirius Soft Starter 3rw40 Manual Pdf
Siemens Sirius Soft Starter 3RW44 failure
We have a 750 KVA Doosen generator connected to a Marelli power unit as the power source. This is enough power to operate a 230 kva motor during soft start.
Commissioning of this 3RW44 has failed despite 3 visits from Siemens to calibrate the soft starter 3RW44 with the Siemens motor. We have had this unresolved problem going for 5 months now and the Siemens experts are unable to offer a solution to date. We are a new shrimp farm in Saudi Arabia and with no pump there is no farm.
On the final switch over to full motor (and therefore pump) operation the softstart 3RW44 shuts the whole thing down. We have two identical pumps, motors and soft starters and both shut down in this way. We have tried slow ramp up, fast ramp-up and always at the end of the soft starter cycle, the sofstarter shuts down and stops the motor. The soft start message says it registered high voltage to the soft starter unit. The software settings of the 3RW44 do not include a way to alter or override this message.
On a slow ramp up, you can hear the generator slowly picking up load, but at no time does the generator sound overloaded. Then at the switchover to full pump operation, the soft starter stops the motor.
Siemens has failed to provide a solution. There is a simple solution somehwere here and I hope somebody on this forum has it.
Strangely, the one pump did start perfectly and run once for 30 minutes. However after shutting down and then changing 2 Amp fuses to the softstart 3RW44 neither units could be started again. These 2 Amp fuses kept blowing and Siemens instructed we use 6 Amp fuses later.
I have personally witnessed about 60 or more startup attempts.
The pump is suited to a 230 kva motor, so it is not the pump and it is not the water head either.
I would welcome a solution if possible. We have a case here of technology defeating humans!
Siemens Soft Start Manual
This feature is not available right now. Please try again later. 6/2 Siemens IC 10 A 04/2018 Switching Devices – Soft Starters and Solid-State Switching Devices Introduction 6 Overview Use of soft starters in conjunction with IE3/IE4 motors. PROFINET Communication Module for SIRIUS Soft Starter 3RW44 Manual, 12/2013, A5E2A/RS-AA/001 9 Introduction 1 1.1 Important notes Purpose of this manual This manual contains the basics for using SIRIUS 3RW44 soft starters in conjunction with the PROFINET communication module. The soft starter can be optionally expanded to. Save energy with a soft starter. You can also reduce wear with a soft starter to control motor start and ramping. Danfoss Drives offers VLT softstarters and soft-start controllers. SIRIUS soft starters are the best solution for the soft start and soft stop of motors. This reliably prevents both mechanical stress as well as line voltage dips. They ensure that three-phase motors start smoothly, easily, and efficiently. Soft starters SIRIUS 3RW30 / 3RW40 Manual. Siemens products may only be used for the applications described in the catalog and in the relevant technical documentation. If products and components from other manufacturers are used, these must be recommended or approved by Siemens. Proper transport, storage, installation, assembly. The 3RW5 family of soft starters is a comprehensive soft starter portfolio that has been developed for a wide range of applications and is simple to select, install, and configure. These starters are ready for the Internet of Things (IoT), being easily integrated into most industrial communication networks.
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