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| TROUBLESHOOTING AND REPAIR |
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| CURRENT TRANSDUCER TEST (continued) |
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| TABLE F.5 |
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| EXPECTED TRANSDUCER FEEDBACK |
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| OUTPUT LOAD CURRENT |
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| VOLTAGE |
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| 300 |
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8.Check the feedback voltage from the current transducer using a resistive load bank and with the
A.Pin 1 (lead 801) to Pin 6 (lead 806) should read 2.4 VDC (machine loaded to 300 amps).
9.If for any reason the machine cannot be loaded to 300 amps, Table F.5. shows what feedback voltage is produced at various cur- rent loads.
10.If the correct supply voltages are applied to the current transducer, and with the machine loaded, the feedback voltage is missing or not correct the current transducer may be faulty. Before replacing the current transducer, check the leads and plugs between the control board (J8) and the current transducer (J90). See The Wiring Diagram. For access to plug J90 and the current transducer refer to: Current
Transducer Removal and Replacement Procedure.
11.Remove input power to the
12.Replace the control box top and any cable ties previously removed.
13.Install the case wraparound cover using the 5/16” nut driver.
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