FE PETRO STP-SCI, Инструкция по установке и эксплуатации

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9
Flashes
/Beeps Condition Potential Causes Proposed Action
4
Open Circuit Connection broken from
STP-SCI to PMA
Or
Locked Rotor w/ Thermal
Overload Open
Or
Incorrectly wired through
capacitor
Or
Relay Failure
1. Wait 5 minutes before pushing the reset button on the STP-SCI. This will
allow the motor thermal overload to reset if locked rotor has occurred.
Check for proper operation of system; if operating correctly do not continue
to next step. If condition is still present continue to next step.
2. Disconnect power at load center, lock and tag out circuit breakers.
3. Remove the two motor control outputs (M1 and M2) from the STP-SCI unit.
4. Using an ohmmeter (low range setting), place leads between two wires
going to the STP, this is the first step in determining where the open circuit
has occurred. Correct readings between M1 and M2 wires (orange and
black) should match that of the motor being used +/-1 ohms. These
readings can be found in TB004 or the STP/IST Fixed & Variable Length
Installation and Owner’s Manual. Readings between any of the motor wires
and ground should be an open circuit. If readings in this step are incorrect,
continue with the next step. If readings are correct go to step 7.
5. Check and verify capacitor wiring is correct in STP junction box. Refer to
the STP/IST Fixed & Variable Length Installation and Owner’s Manual for
wiring diagram or SB003. If condition has been corrected, do not continue
with next step. If wired correctly and condition is still present, continue with
next step.
6. Go to the submerged turbine and remove the cover at the top of the
extractable manifold. Remove the three wire nuts and continue conductivity
tests on the three wires going to the motor. Readings between any of the
motor wires and ground should be an open circuit. If readings are incorrect
and there are no problems with the lead assembly wiring, go to
“PMA
Replacement/Inspection” in 3 flash section. If readings are correct, there is
problem with the wiring between the STP-SCI and this point, continue with
next step.
7. Remove the junction box cover and do conductivity test on wires in the
junction box after the capacitor through the extractable discharge head
(orange to orange, red to red, and black to black). If wires are not
conducting, replace the male and female connectors of the STP. See
STP/IST Fixed & Variable Length Installation and Owner’s Manual for
replacement parts. Check for proper operation. If operating correctly, do not
continue. If conductivity readings are correct and the condition is still
present, continue to next step.
8. Upper Board relay may be stuck open or damaged. Replace Upper Board
(Relay Assembly); see
“Replacement Parts” section for part number. Turn
on power to the STP-SCI unit and verify correct system operation.
8
Uncalibrated New Installation
Note: All STP-SCI’s must be calibrated prior to operation.
1. Calibrate STP-SCI per “Calibration” section.
If controller calibrates, do not continue to next step. If abnormal condition is
indicated, Count Flashes/beeps before pushing reset button. Follow
troubleshooting guide for the indicated condition. Correct condition and
recalibrate.
2. Check the following:
•
Calibration is done at no flow (close STP clamp valve or ball valve in
line).
•
Dispenser hook signal is applied within 10 min. of putting controller in
calibration mode.
•
No open circuits between controller and motor.
•
Lines have been purged of air.
•
Locked Rotor
9
Extended
Run
Continuous Hook Signal
applied for more than 60
min. without pumping
product
1. Disconnect power at load centers, lock and tag out circuit breakers.
2. Check voltage across hook terminal with all dispenser handles off. There
should be no voltage applied. If voltage is present, contact an electrician to
correct the problem. After the problem has been corrected, turn on power to
the STP-SCI and verify system is operating correctly.
10
Relay Fault Relay contact failure
The STP will continue to run after this fault indication is
displayed.
1. Disconnect power at load centers, lock and tag out circuit breakers.
2. Replace Upper Board (Relay Assembly), see “Replacement Parts” section.
3. Turn on power to the STP-SCI unit and verify correct system operation.
Contact FE Petro for additional troubleshooting information at 1-800-225-9787.
Caution