18
Electronic Bypass Controller Installation and Commissioning Guide
Incoming
Power
Power On
1 Select Operation Mode
RUN
(1) Rest mechanical overload inside enclosure
Alarm Display
2 Select Run Mode
Input
Contactor
Bypass
Contactor
Output
Contactor
Motor (1)
Overload
External
Safety
Fire
Alarm
VFD
Fault
Press OFF/RESET once to cancel RUN mode
Press OFF/RESET twice to cancel OPERATION mode
TEST
HAND
VFD
AUTO
OFF
RESET
BYPASS
VFD
M
4.
1.
3.
2.
3.1.4 System Status LEDs
The system status LEDs represents a one-line power diagram with a total of five (5)
LEDs located on the keypad:
1. Main power on LED
2. VFD power LED
3. Input Contactor status LED
4. Output Contactor status LED
5. Bypass Contactor status LED
The operating status of the electronic bypass can easily be seen from the illuminated
LEDs which indicate power ON, operation mode and run conditions.
3.1.5 HAND / OFF / AUTO Buttons
The Select Start Mode section offers simple control of the type of operation using
three (3) buttons:
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