Praful Kumar

Hi kaiser, Its F041- Phase U-V fault,  i have total 5 motor all are having the same fault. Fan supplier has confirmed that they have tested 100% functional test but that is only in mail, They don't have any test reports to show. is their any thing which

yes motor name plate details has been entered , I guess Auto-tune is not possible in this configuration because drive is of 480 V O/P and motor is of 208. Drive O/P voltage is set to 208 V . Motor RPM is 11700, Motor current is 14 A. its 4.4 Kw Motor from Ashland. Incoming of the VFD is Start Connected and motor is also start connected. Acceleration time is set for 10 sec , P39 is set for 0(V/Hz). Still its not getting started by giving the start command immediately in fraction of sec it goes to phase fault. response time for this fault is in micro sec.  

All the motor name plate parameter is configured Motor voltage is set to 208V. while giving the start command immediately drive goes to fault state. As the motor is Star winding we will get the continuity over phase to phase and resistance measured is 0.8Ohms. Is there any parameter which needs to be feed for star winding motor.  

Thanks Joe,  My problem is resolved. Thanks to all of you. I have  one another issue  We have New fan – 208V 3 Ph , connected to the Power flex 523 model of RA rated for Input / output   , 480/480 V . But we have programmed the Drive Output to 208V due to Fan rating … The problem we faced today is like , when we start the drive with Fan connected , the drive is tripping with error of   PHASE SHORT .  Checked all the wiring and found  thing in okay condition .The only programming we did is to set the output volatge to 208.  The FAN phase to phase winding ohmic values are 0.8-0.7 ohms , which vendor ( Ashland ) has confirmed is correct .   We are understanding , whether we need to do any re-check on programming due to low output voltage set ? Do we have any further programming parameters to be set according to the dropped Output Voltage…  

Node address is set for both the drives but do i need to make all digital inputs to not used as it is controlled over device net ?  

Hi Joe, Thanks i will check with this parameter.

Hi kaiser, Thanks for your valuable information, yes the communication board is installed and the communication is established. Do we need to configure the IP address  in device net communication? i guess its required for Ethernet communication.  

Hi Guys,  I need help in configuring the device net communication with our CGA software. I have established the communication by setting the baud rate and node address ( MAc ID). All the three indication is in healthy condition but drive is not getting the start command from our software. is their any list of parameter which i need to look into it ? can any one please help ? Paramater P046 start source should be serial Dsi or network opt please suggest.