Operating instructions

17
Operating Instructions
Troubleshooting Chart
Problem Possible Causes Resolutions
Compressor will not start
(Electric failure lamp is
on)
Compressor shuts down
under compression mode/
while loading
1. Power supply problem
2. Blown circuit fuse and/or
internal fuse
3. Insufficient power to PLC
4. Fault is present
5. Poor contact on START pushbutton
6. Failed electric motor
7. Failed compressor pump
1. Fault is present
2. Loss of Control Voltage
3. Low Incoming Voltage
1. Check complete circuit for proper voltage, ensure all electrical
connections are secure
2. Replace fuse(s) as needed
3. Check for correct voltage and make sure all fuses are
functioning
4. Check fault history on PLC:
Arrow down to RUN PARAMETER, then choose fault function.
Refer to PLC manual for fault listing and resolution.
5. Have electrician or EMAX dealer inspect and replace
pushbutton
6. Have electrician or EMAX dealer inspect and replace motor
7. Attempt to move by hand to check for free movement of pump.
If not possible, contact EMAX service
TURN OFF POWER before attempting to
move pump. Watch for moving parts. Do not
pinch fingers in pulley.
1. Check fault history on PLC:
Arrow down to RUN PARAMETER, then choose fault function.
Refer to PLC manual for fault listing and resolution.
2. Reset. If trouble persists, check line pressure does not exceed
maximum operating pressure of the compressor (specified on
nameplate)
3. Wire size for power supply too small, Contact local power
company
RUN PARAMETER
CALENDAR
CUSTOMER PARAMETER
FACTORY PARAMETER
MOTOR CURRENT
VF PARAMETER
TOTAL RUN TIME
THIS RUN TIME
MAINTENANCE PARAMETER
HISTORY FAULT
NUM / SERIAL #
THIS FAULT
RUN PARAMETER
CALENDAR
CUSTOMER PARAMETER
FACTORY PARAMETER
MOTOR CURRENT
VF PARAMETER
TOTAL RUN TIME
THIS RUN TIME
MAINTENANCE PARAMETER
HISTORY FAULT
NUM / SERIAL #
THIS FAULT