# Stagehand Pro 5: Troubleshooting

The Stagehand Pro 5 is a complex device. Occasionally you'll bump into challenges (which is probably why you are here) that are not clear.

## Common Issues

<table data-full-width="true"><thead><tr><th width="350">Fault</th><th>Checkpoint</th></tr></thead><tbody><tr><td>Power indicator isn't on</td><td><ul><li>Check input power</li></ul></td></tr><tr><td>Power indicator is on, but Stagehand Display is not</td><td><ul><li>Check Control power Breaker (front)</li><li>Check Control Power fuse (rear)</li></ul></td></tr><tr><td>No encoder feedback on the Stagehand or Spikemark</td><td><ul><li>Check Encoder Power fuse (rear)</li><li>Check Sensor Input cable</li></ul></td></tr><tr><td>Stagehand display showing Forward/Reverse/All Stop Interlock and External Fault Faults</td><td><ul><li>Install Interlock terminator</li></ul></td></tr></tbody></table>

## Status Display <a href="#h.p0njo4acdxsh" id="h.p0njo4acdxsh"></a>

| **Reverse Limit Indicator**      | **Forward Limit Indicator**      |
| -------------------------------- | -------------------------------- |
| ![](/files/H8Wx9jBfw7FL1OHoD0AM) | ![](/files/3k9qfqjXISPQwMzNqZz3) |
| **Ultimate Limit Indicator**     | **Cross Grooved Indicator**      |
| ![](/files/FjCKXrYLgb0M20uW9F5U) | ![](/files/IIsbO46iMfilZp2exB8z) |
| **Forward Interlock Indicator**  | **Reverse Interlock Indicator**  |
| ![](/files/Ape1139Yji5kE5shnDPB) | ![](/files/sErhWLWYRzZSVTS9teff) |
| **All Stop Interlock Indicator** | **External Fault Indicator**     |
| ![](/files/CcSusVoRo1eMFjbvlsjx) | ![](/files/uG1VOOwJQVCXe2l2t3ek) |

## VFD Faults <a href="#h.e5z9zkb3nqba" id="h.e5z9zkb3nqba"></a>

Common Faults

| Code  | Fault                                                   | Check Point                                                                                                                                                                                                                                                                                                                                            |
| ----- | ------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| E.OC1 | Overcurrent trip during acceleration                    | <ul><li>The Stagehand can toss an E.OC1 fault for several common reasons. The most common reason is due to jogging too aggressivley from the Consolette or Console.</li><li>Check Pr.07 is set to 0.1</li></ul>                                                                                                                                        |
| E.OC2 | Overcurrent trip during constant speed                  | <ul><li>Check for sudden load change</li><li>Run a Brake Test and make sure both brake circuits are working</li><li>Check for a short-circuit in the output circuit</li><li>Check the rotation direction(Pr. 359) is set correctly</li><li>Check that motor capacity(Pr. 80) is set correctly</li><li>Check Pr.07 & Pr.08 are set to 0.1/ul></li></ul> |
| E.OC3 | Overcurrent trip during deceleration or stop            | <ul><li>The Stagehand can toss an E.OC3 fault for several common reasons. The most common reason is due to jogging too aggressivley from the Consolette or Console.</li><li>Check Pr.08 is set to 0.1</li></ul>                                                                                                                                        |
| E.OV1 | Regenerative overvoltage trip during acceleration       |                                                                                                                                                                                                                                                                                                                                                        |
| E.OV2 | Regenerative overvoltage trip during constant speed     | <ul><li>The most common resons to see an E.OV2 fault on the Stagehand is due to loading, distance traveled (in) and speed.</li><li>Reduce the load, speed or travel distance.</li></ul>                                                                                                                                                                |
| E.THM | Motor overload trip (electronic thermal relay function) | <ul><li>The most common reason to see the E.THM fault is because Pr.9 is set incorrectly (too low)</li></ul>                                                                                                                                                                                                                                           |
| E.ECT | Signal loss detection                                   | <p>This fault means the VFD has lost the speed encoder signal.</p><ul><li>Check the Sensor Cable is connected</li><li>Check the encoder fuse on the Stagehand</li></ul>                                                                                                                                                                                |
| E.OS  | Overspeed Occurance                                     | Check Pr.369 and Pr.374                                                                                                                                                                                                                                                                                                                                |
| E.OSD | Speed Deviation excess detection                        | <p>This fault can rear its ugly head if there's a difference between the commanded speed and the actual speed.</p><ul><li>Most likely caused by a brake issue.</li><li>Check or replace the Motor/Brake cable</li><li>Confirm motor and encoder phasing is correct</li></ul>                                                                           |
| E.OLT | Stall prevention                                        | This fault can pop up if there's too much load on the motor. It can also bubble to the surface when running a heavy load very slowly                                                                                                                                                                                                                   |
| E.ILF | Input phase loss                                        | Check input power to confirm all three phases are present.                                                                                                                                                                                                                                                                                             |

Uncommon

v

<table data-header-hidden><thead><tr><th width="114.33333333333331"></th><th width="205"></th><th></th></tr></thead><tbody><tr><td>Code</td><td>Fault</td><td>Check-Points</td></tr><tr><td>E.THT</td><td>Inverter overload trip (electronic thermal relay function)</td><td><ul><li>If the temperature of the output transistor elements exceeds the protection level</li><li>Make sure Pr. 0, Pr. 14 are correct</li><li>Check Speed encoder meets specifications and is wired correctly</li><li>Reduce Load</li></ul></td></tr><tr><td>E.FIN</td><td>Heat Sink Overheat</td><td><ul><li>Check that the VFD fan is clean</li><li>The VFD needs repair</li></ul></td></tr><tr><td>E.UVT</td><td>Undervoltage</td><td><ul><li>Check Input Power</li></ul></td></tr><tr><td>E.ILF</td><td>Input phase loss</td><td><ul><li>Check Input Power</li></ul></td></tr><tr><td>E.SOT</td><td>Loss of synchronism detection</td><td><ul><li>Not used, if you see this error, Your Stagehand Pro will need repair</li></ul></td></tr><tr><td>E.BE</td><td>Brake transistor alarm detection</td><td><ul><li>Remove Power</li><li>Replace VFD</li></ul></td></tr><tr><td></td><td></td><td></td></tr></tbody></table>


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