Variable Speed Drives (Inverters)
Variable speed drives allow the operation of any IBC system to be more user friendly and much more efficient when compared to systems using manual damper valves and fixed speed blowers. The precise control allows operators to make fine adjustments that are nearly impossible using damper valves. The fine adjustments can mean the difference between a stable bubble and an unstable one. However, there are several considerations that should be investigated before selecting the drive.
Not all drives are created equal.
There is a variety of features available that may or may not be necessary for the IBC application. In this case, the general application is a fan. This most commonly calls for a general purpose, variable torque drive, with linear ramping, coast to stop, and at least one configurable dry contact used to report drive status. Other features, including interface protocols are also available at extra costs.
An excellent choice for variable speed drives is the Yaskawa GA500 and GA800 drive. DRJ can provide the drive, preprogrammed for integration with the DRJ ISIBC1 IBC Control System. Some salient features are:
- Keypad Multi-directional buttons to help you intuitively navigate through drive menus and parameters. Tactile feel of the buttons lets you know when you’ve pressed a button.
- Parameter Backup / Copy Removable keypad allows you to back up and copy parameters to other drive
- 24 VDC Power Input for Controller Simplify your wiring and keep your control system operating even during standby or power outage.
- USB Port Easily connect your PC or mobile device to program the drive with or without power.
- LED Status Ring You can determine the drive status with a quick glance at the LED status ring and know the GA500 is ready and operating.
- Finger Safe Terminals Easily access terminals to make the wiring process faster and easier. No need to remove the cover
- Display Easy-to-read LED display
