Sirius 3rw44 system manual

The ideal parameters must be set on the machine under applicable load conditions. In the case of increased operating sequences, the 3RW44 should be dimensioned at least one capacity level higher than the highest connected motor output.

Device not exchanging data! From this version onwards, DPV1 operation read, write data set and alarms is also possible downstream from a Y manal. Turn off and lock out all power supplying the system and device before working on the device. Page Page There are more diagnostics messages pending than the DP slave manuaal able to store.

Internal bypass contactor connected Output 6: Page — 3RW44 in a standard circuit and reversin This output must be used to control an external braking contactor. Data that is transferred from the soft starter and indicates the current operating status, e. Direct on-line sta rting maximum torque that can begenerated Soft start Breakaway pulse combined with torque regulation or voltage ramp Load e. DC braking torque The height of the DC braking torque determines the brake force of the motor.

Standstill detection does not take place in the soft starter and, if required, must be realized by mnaual of external measures. Identifier-related diagnostic data indicates whether soft starters are faulty or not. Product Catalogue Product Catalogue eClass 5.

Configurator Overview. Ordering data Accessories Product Information Configurators. Spice Selection Filters. Remove all filters. Jump to. Select a Configurator. Join Us Close. Are you an Engineering professional? Join Eng-Tips Forums! Join Us! By joining you are opting in to receive e-mail. Promoting, selling, recruiting, coursework and thesis posting is forbidden. Students Click Here. Related Projects. The motor is mounted and connected to a floating pump chain drive. This is enough power to operate a 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 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! If your "at rest" control voltage is around or more very common it probably rises well above V during the generator's "overshoot" moment.

We've had a lot of trouble with this, always on the high side, with Siemens soft starters supplied by fluctuating utility power. Since it's a brief transient condition it's difficult to detect. Tech support tends to suspect more interesting problems, easy to get distracted with parameter adjustment experiments that have no effect on this.

It's a compromise for sure, but mostly our problems are on the high side as I expect yours would be. You're actually in better position to compensate since you control the power source.

You might be able to simply adjust your generator's main output voltage downward a bit to solve this problem. Hi Bentov, thankyou for your reply - you have identified exactly the "overshoot" moment that has been noted by the Siemens technicians. We will likely work with the generator supplier to try and implement your two solutions. Product Catalogue Product Catalogue eClass 5. Configurator Overview.

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