# Stagehand Apprentice 2: Troubleshooting

If you've made it this far, you're probably running into issues Making It Move.

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

<table data-header-hidden data-full-width="true"><thead><tr><th></th><th></th><th></th></tr></thead><tbody><tr><td><img src="/files/a8tguiq7AqiJkX5FX1SK" alt="" data-size="original"></td><td><img src="/files/lDiK13WzkGMpR8WJslIY" alt="" data-size="original"></td><td><img src="/files/EE9SdxIf0jmvYccxVR89" alt="" data-size="original"></td></tr><tr><td>Reverse Limit</td><td>Forward Limit</td><td>Ultimate Limit</td></tr><tr><td><img src="/files/DMytTyTa761U3bvet59B" alt="" data-size="original"></td><td><img src="/files/aE5poCeDSNpm9qV0yH6m" alt="" data-size="original"></td><td><img src="/files/jh90xbRQltinSVIMCfPw" alt="" data-size="original"></td></tr><tr><td>Disconnected, signal &#x26; interlock not connected</td><td>Drive Fault</td><td>E-Stop Engaged</td></tr><tr><td><img src="/files/WL6kfbve9prZGCA8aLp3" alt="" data-size="original"></td><td><img src="/files/iMvUwHWRUwGcXJShRnkM" alt="" data-size="original"></td><td></td></tr><tr><td>All-Stop Interlock</td><td>Reverse Interlock</td><td>Forward Interlock</td></tr><tr><td><img src="/files/FmaHJ4j06yDALx6lfRcc" alt="" data-size="original"></td><td><img src="/files/ZhXpjqiG7BfdURoa1APO" alt="" data-size="original"></td><td></td></tr><tr><td>Cross Groove</td><td>External Fault</td><td></td></tr></tbody></table>

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

Any VFD faults will be displayed on the face of the Stagehand as well as in Spikemark under the "Drive" section of the Stagehand Properties panel.

<table data-header-hidden><thead><tr><th width="112"></th><th width="183"></th><th></th></tr></thead><tbody><tr><td>Code</td><td>Fault</td><td>Check-Points</td></tr><tr><td>E.OC2</td><td>Overcurrent trip during constant speed</td><td><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></ul></td></tr><tr><td>E.OV2</td><td>Regenerative overvoltage trip during constant speed</td><td><ul><li>Check motor cable</li><li>Likely overloaded your brake resistor</li><li>Reduce Load</li><li>Reduce Speed</li><li>Reduce Travel Distance</li><li>Install a larger brake resistor</li></ul></td></tr><tr><td>E.THM</td><td>Motor overload trip (electronic thermal relay function)</td><td><ul><li>Reduce Load</li></ul></td></tr><tr><td>E.OLT</td><td>Stall prevention</td><td><ul><li>Reduce Load</li></ul></td></tr><tr><td>E.OSD</td><td>Speed deviation excess detection</td><td><ul><li>Check that the speed encoder is tight to the motor</li><li>Swap Motor Cable</li><li>Run a brake test - The Brake might not be releasing</li></ul><p>Check that Pr. 285 and Pr. 369 are set correctly</p></td></tr><tr><td>E.ECT</td><td>Signal loss detection</td><td><ul><li>Your Speed Encoder is disconnected</li><li>Plug in your signal cable</li><li>Check 5VDC 1 Amp fuse on Stagehand</li><li>Make sure your encoders are wired correctly and are able to receive a 5VDC power Input</li><li>Change Pr. 800 to 10 - Don’t do this in lifting/hoisting applications</li></ul></td></tr><tr><td>E.EP</td><td>Encoder phase fault</td><td><ul><li>Check that your Speed Encoder is wired correctly</li></ul></td></tr></tbody></table>

Uncommon

<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.OC1</td><td>Overcurrent trip during acceleration</td><td>Stagehand Pro does not use Drive Level Acceleration. This fault should never happen.</td></tr><tr><td>E.OC3</td><td>Overcurrent trip during deceleration or stop</td><td>Stagehand Pro does not use Drive Level Deceleration. This fault should never happen.</td></tr><tr><td>E.OV1</td><td>Regenerative overvoltage trip during acceleration</td><td>Stagehand Pro does not use Drive Level Acceleration. This fault should never happen.</td></tr><tr><td>E.OV3</td><td>Regenerative overvoltage trip during deceleration or stop</td><td>Stagehand Pro does not use Drive Level Deceleration. This fault should never happen.</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>E.OS</td><td>Overspeed occurrence</td><td><ul><li>Check Pr. 374 and Pr. 369</li></ul></td></tr></tbody></table>


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