This instruction show you guide on how to solve PCC1302 PowerCommand Code 1472 high AC current shutdown.
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Logic:
The generator output current has exceeded at least 150% of rated current.
Possible Causes:
1 Short or overload
2 Incorrect CTs, CT connections, or CT setup
3 CT harness connections
4 Incorrect rating setup
Diagnosis and Repair:
1 Short or overload
a Inspect the load cables and the AC harness connections.
b Disconnect the AC harness from the load cables.
c Inspect the AC harness and board connector pins.
d Visually inspect for corroded pins, bent or broken pins, pushed back or expanded pins.
e Check for a short circuit to engine block ground.
2 Incorrect CTs, CT connections, or CT setup
a Check CTs.
a Check that correct CT’s have been installed.
b Check that CT connections are secure by zip ties to corresponding wires.
c Check that CTs are installed in the correct order.
d Connect InPower.
e Verify the correct CT ratio has been entered in the generator setup.
f Adjust the setting(s) as necessary.
3 CT harness connections
a Measure the resistance of the CT harness on each pin.
b Disconnect connector P12 from the control board and CTs.
c Verify the resistance from board connector to CT connections. Resistance should be 5 ohms or less.
d Measure the resistance of each pin on the CT harness connector to engine block ground. Resistance should be open or infinite.
e Verify the CT connections are correct from P12 to the CT terminals.
P12–1 (CT1) to P12–4 (CT1–COM)
P12–2 (CT2) to P12–5 (CT2–COM)
P12–3 (CT3) to P12–6 (CT3–COM)
f Re-terminate connections as necessary.
4 Incorrect rating setup
a Connect InPower.
b Verify the generator rating in the control is set correctly.
c Verify CT ratings in the control are set correctly.
d Adjust settings as necessary
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