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| Troubleshooting | 7 | ||
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| Self Diagnostics | |||
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| MESSAGE |
| EXPLANATION |
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| NO. |
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| 228 | 5725 | Software TRAP |
| ⎯ |
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| 229 | 5725 | Cable Was Off |
| ⎯ |
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| 230 | 5725 | RESET |
| ⎯ |
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| 231 | 5725 |
| ⎯ |
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| 232 | 5725 | Illegal/Unexecutable Command |
| ⎯ |
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| 233 | 5725 |
| Either internal fault or external transient condition |
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| 234 | 5725 | HVCLEAR Circuit Activated |
| Internal fault, requires service |
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| 235 |
| Output Tripped To Standby |
| HVCLEAR circuit activated most likely because of |
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| external transient condition |
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| 841 |
| No 5725 Available For Selected Output |
| ⎯ |
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| 850 |
| Can’t Store, 5725 Switch In NORMAL |
| ⎯ |
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| 851 |
| Can’t Format, 5725 Switch In NORMAL |
| ⎯ |
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| 3202 | 5725 | ACV Sense Amp Fault |
| Requires service |
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| 3203 | 5725 | ACV Standby 5725 Fault |
| Requires service |
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| 3204 | 5725 | ACV Operate Wouldn’t Converge |
| Requires service |
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| 3205 | 5725 | ACV Operate 5725 Fault |
| Requires service |
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| 3206 | 5725 | ACV Cal Sensor Test Died |
| Requires service |
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| 3207 | 5725 | ACV Cal Sensor Fault |
| Requires service |
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| 3208 | 5725 | Current Path To Shunt Open |
| Requires service |
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| 3209 | 5725 | Shunt Sense Open |
| Requires service |
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| 3210 | 5725 | Shunt Measurement Out Of |
| Requires service |
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| Tolerance |
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| 3211 | 5725 | Current Amplifier Offset Too Large |
| Requires service |
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| 3212 | 5725 | Current Drive Path Open |
| Requires service |
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| 3213 | 5725 | Current Error Amplifier Failure |
| Requires service |
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6.To test the current function, press the "Current" softkey. A sequence of self tests is run. A brief description of each test follows:
a.5725A Current Shunt: Checks the current cabling and the calibration amplifier on the Current Amplifier assembly (A2).
b.5725A Current Zero: Grounds the input and shorts the output of the Current Amplifier, and verifies that the output is close to 0A.
c.5725A Current Gain: Shorts the output of the Current Amplifier, applies a voltage input, and verifies the output current. This confirms integrity of the error amplifier circuit in the Current Amplifier assembly.
d.5725A Current Monitor: Runs the analog monitor circuit on the High Voltage Sense Assembly (A6) in the current function and verifies that it operates correctly.