Emerson FPCBA, Instruction Manual, Page: 32 / 43

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1. HAND mode – (Local) Control via the bypass and VFD keypads
2. AUTO mode – (Remote) Control via terminal connections
3. OFF/RESET mode – Stops either HAND or AUTO operation
5.1.6 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
5.1.7 LED Alarm Display
There are four (4) LEDs on the Electronic bypass keypad indicating the
various application specific faults that may occur. They are as follows;
1. Motor Overload
2. Safety
3. Fire Alarm
4. VFD Fault
5.2 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.
Step 2
– Select the start mode by pressing either the HAND or AUTO buttons.
Selecting Hand allows an immediate start in VFD or BYPASS mode,
whichever was previously selected. The RUN LED will illuminate at this time.
Selecting Auto will illuminate the AUTO LED. Run will not occur until the
customer supplied run contact closes between terminals TB2-5 and TB2-8
(AUTORUN and 24V common). The RUN LED will illuminate when the contact
closes.