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Ok, thank you for your reply. What i'm curious about, is that the frequency of the irritating sound seems to be not the carrier frequency. This is a feeling, not exact logic. Is there something to say about the reason/origin of the sound? ------------------------------ de Vries - ...

Previously we used a Danfoss VLT FC51, 3 Phase, 11Kw, 23A 132F0058 In combination with this drive we used a motor with the following nameplate: Power 11 KW, 22A, 1440 RPM, 400V, Motor NP Hertz: 50 Hz. Motor Poles 4 Now we have changed this for the following motor, Motor Power Rating: 5,5 KW, ...

Thank you for your answer, Yes, I have set it to V/Hz. Have also performed a static autotune. I have just checked the Nameplate parameters 0-31, 0-32, 0-33, 0-34, 0-35, and 0 - 0-36 and they are filled in correct. As part of this, the motor speed and number of poles are correct. ...

"We recently installed a new frequency drive, an Allen Bradley PF525, combined with a different motor. We've noticed that the motor now produces a high, irritating sound. When I adjust the carrier frequency, the sound improves, but the delivered torque decreases, which is not ideal. The higher ...

Hi Ryan, Thank you, Have it working :-) Seems to be some parameters are illegal to write? (Stop mode, Torque Control Mod ( v/Hz, vfc, eco mode) ------------------------------ de Vries ------------------------------

Thank you all, I have got it working so far. But I have implemented the standard data. But I also want to read the error code, the actual current, actual power. Is this possible? ------------------------------ de Vries ------------------------------

Thannk you for your reply, next week I will look into it ------------------------------ de Vries ------------------------------

Hello All, I'm new to this forum, and have searched for documentation regarding the Powerflex 525 and the addressed / registers of the EDS File. I have used the 0001009600090500.eds file, downloadaded from the rockwell site. I use the embedded ethernet port and use the drive ...