Eaton SVX9000 Over Temp

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The trip level for Eaton SVX9000 over temp default is 90C on the IGBTs and B5C for the power board. Depending on the drive size there may be up to B different temps that can be read from the HMI.  FRB and below drive only have one sensor for the IGBTs and one for the power board.  The power board is not read out on the HMI.  On larger Eaton SVX9000 drives you there’s a sensor for every IGBT, although only the highest from each phase is displayed on the HMI.  It will also display the power board’s temperature.  The temperature displayed in the monitor menu is the highest reading of the IGBTs.  To see the individual reading, go to the multi monitor which is normally located in the system menu.

When there is an Eaton SVX9000 over temp trip, the first thing to determine is whether it’s an Eaton SVX9000 over temp power module trip or a power board trip.  In the fault history the fault will list a module and sub-module.  The sub­ module is the one that will say either module or board and this tells you where the fault is coming from.  If it says module this is from the IGBTs and if it says board it is from the power board.

If the Eaton SVX9000 over temp trip is from the module the first thing that you need to check is to see whether the cooling fans work. If the fans work the next thing to check is whether you have air flow through the drive.  If air flow isn’t present, you may need to send your Eaton drive to Precision Electric for repair services. If you have air flow check the temp of the air flow to see if there is really hot air coming out of the drive or if it’s cool air. If you have cool air flowing through the drive and it is still tripping out more than likely the temperature monitoring circuit is bad. This type of failure normally requires repair service.  Another thing to look for is the ambient temp of the environment that the drive is located in.  The drive is meant to be in a location that does not exceed 40C and is no more than 1000 M above sea level. If either of these 2 conditions are exceeded, the drive may need to be de-rated.

If the trip is from the power board it can be caused by a couple of things.  If the ambient temp around the boards is too high you can get this trip.  More likely this trip will occur on FR10 and above drives.  This trip is coming from the ASICs board and normally tells you the fan that cools the ASIC board is not working. Something to note with this trip is that the drive will try to prevent this trip by changing its switching frequency.  The drive will start to do this 1C before the warning level and will reduce its switching freq faster the closer it gets to the trip level.  The drive will lower its switching frequency down to 2kHz.

Power board failure is a common problem from Eaton SVX9000 over temp tripping. For Eaton SVX9000 over temp repair and replacement inquiries, contact Precision Electric. To learn more about Eaton SVX9000 adjustable speed drives, visit the Eaton Website.

Eaton DG1 Drives

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Eaton DG1 drives are general purpose drives and are a part of Eaton’s next generation PowerXL Series of adjustable frequency drives. Eaton DG1 drives are specifically engineered for today’s more demanding commercial and industrial applications. The power unit makes use of the most sophisticated semiconductor technology and a highly modular construction that can be flexibly adapted to meet the customer’s needs. The control module was designed to include today’s standard communication protocols and I/O while still having the ability to add additional option cards. Eaton’s patented Active Energy Control is also a standard feature on DG1 drives, offering customers increased efficiency, safety and reliability. These drives continue the tradition of robust
performance and raise the bar on features and functionality, ensuring the best solution at the right price. Eaton DG1 drive products range from 230 Volt through 125 horsepower; 480 volt and 575 volt through 250 horsepower. Eaton DG1 drives are standard Nema 1 (IP21) enclosed. All Eaton DG1 drives come with an EMC filter and standard brake chopper.

Accessories – Eaton DG1 Drives

The PowerXL Series—Eaton DG1 drives can accommodate a wide selection of expanded and adapter option boards to customize the drive for your application needs. The drive’s control unit is designed to accept a total of two additional option boards. The PowerXL Series—DG1 drives come with a factory-installed standard board configuration including the following:

Standard I/O:

  • 8DI, 1DO
  • 2AI, 2AO
  • Three relays

Standard communications:

  • Ethernet IP, Modbus TCP
  • RS-485: Modbus RTU
  • BACnet MS/TP

The IP54 option kit is used to convert a IP21to a IP54 drive. The kit includes cover, fan and grommets. The Eaton DG1 drives flange kit is used when the power section heat sink is mounted through the back panel of an enclosure. The kit includes hardware, top flange plate, bottom flange plate and two side flange plates. The PowerXL Series PC Tool is designed for programming, controlling and monitoring of Eaton DG1 drives. Features include loading parameters that can be saved to a file or printed, setting references, starting and stopping the motor, monitoring signals in graphical or text form, and real-time display.

To learn more about Eaton DG1 drives or for Eaton DG1 drive repair or replacement quotes, contact Precision Electric, Inc.