I need to use a VFD on a crane application with the ambient around 55 Deg. C. I would be using a Panel Cooler, but in the eventuality of the failure of the Panel Cooler for any reason I need to continue to use the crane till the cooler is put back in circuit. The manual for the drive selected...
I am looking out for a 230 V 1 Ph 60 Hz to 230 V 1 Ph 50 Hz conveter with a current rating of around 5 Amps. My supply source is 60 Hz and the equipment that I need to power is 50 Hz.
Can any one suggest a suitable converter.
Thanks in advance
I need to send the speed reference from Drive A to Drive B over a distance of 800 Meters. Application is not very critical from the speed accuracy point of view. A +/- 10 RPM is good enough.
Option A: Use a field bus option but length is an issue. I am given to understand that I need to use...
I am in the process of retrofitting a 600 Amps Four Quadrant Thyristor Stack. During this process I noticed that I have to increase the spacing between the two halves of the heat sink to accommodate the bus bars which pass at the center of the heat sink.
One idea that had come up during...
I intend to connect a 45 kW VFD to 4x7.5kW Motors for Long Travel of a Yard Machine. As per the VFD Manual the Drive output earth terminal has to be connected to the motor earth to ensure perfect grounding.
In the present application the motors as well as the VFD panels are installed on metal...
I was commissioning a 90 kW 415 V Constant Torque Drive in Open Loop Vector Mode connected to a 75 kW 415 V Motor for Line Shaft Application in a Paper Machine.
The no load running of the motor in decoupled state was perfect up to its full speed.
The problem surfaced when the load was coupled...
Is there any cable length limitations between a VFD and its DBR? Most manuals speak of VFD to Motor cable lengths only.
I have an application that is a highly overhauling load with the DBR in circuit for a good 1 minute in every 3 minutes. This results in the DBR temperature to raise to around...
I intend to install a cage motor and a vector drive operating in closed loop mode for the main hoist of a rotating trolley crane. But the issue is of getting the encoder signals back to the drive.
The platform on which the main hoist motor along with the gearbox and rope drum are mounted...
I recently changed a 55kW 750RPM FLC: 101 Amps, Slip Ring Motor with Rotor Resistance Controls with a 55kW 750 RPM, 101 Amps Squirrel Cage Induction Motor and a Closedloop Vector Control Drive. At full speed and maximum torque requirement the current drawn by the motor was to be 200 Amps i.e...
Hi all,
I intend to change a 45kW 586 rpm S4-60% CDF motor for crane application to a suitable rated squirrel cage motor with vector control. Is there a selection chart for the equivalent motor selection.
