Electronic Bypass Controller Installation and Commissioning Guide 19
3.1.6 TEST / VFD / BYPASS Buttons
There are three (3) buttons used to select the three modes of operation available:
1. Test Mode – Energizes the VFD input contactor only
2. VFD Mode – Energizes the VFD input and output contactors
3. Bypass Mode – Allows bypass operation
3.1.7 LED Alarm Display
There are four (4) LEDs on the electronic bypass keypad indicating the various
application specic faults that may occur. They are as follows:
1. Motor Overload
2. Safety
3. Fire Alarm
4. VFD Fault
3.2 Starting Operation
There are two (2) basic steps required to begin operation.
Step 1 - Select the operation mode by pressing the TEST, VFD, or BYPASS buttons. You
must select one of these modes. For VFD operation, press the VFD button. For bypass
operation press the BYPASS button. For test operation press the TEST button. The
BYPASS and TEST buttons may be pressed together.
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