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KB AC Drives & DC Drives Technical Notes

SUBJECT: Warning - Do not connect the KBSI-240D Signal Isolator with multiple KBVF, KBRG, KBMG, KBWD OR KBWT AC Drives or DC Drives

Please note, if your application requires using multiples of the following AC or DC Drives, KBVF, KBRG, KBMG, KBWD or KBWT, then each drive must have its own signal isolator. All KB motor speed controls require the use of a signal isolator when being controlled by an external grounded signal. The KBSI-240D signal isolator can be used successfully with any single control. It will provide isolation between the grounded input signal and the AC or DC motor speed control. The KBSI-240D signal isolator can be used with multiple, non-regenerative, DC Drives such as KBIC, KBMM, KBMD and KBPC.

If you have an application that requires multiple PWM or regenerative speed controls to all follow one input signal, you must use one signal isolator per control. Please call your Applications Engineer or Regional Manager if you have any questions or need applications assistance.

Click here for this KB Technical Note or Bulletin in PDFSincerely,

Richard Fritts
National Sales Manager


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