Stagehand Apprentice 2: Troubleshooting

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

Status Display

Reverse Limit	Forward Limit	Ultimate Limit
Disconnected, signal & interlock not connected	Drive Fault	E-Stop Engaged
All-Stop Interlock	Reverse Interlock	Forward Interlock
Cross Groove	External Fault

VFD Faults

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.

Code	Fault	Check-Points
E.OC2	Overcurrent trip during constant speed	Check for sudden load change Run a Brake Test and make sure both brake circuits are working Check for a short-circuit in the output circuit Check the rotation direction(Pr. 359) is set correctly Check that motor capacity(Pr. 80) is set correctly
E.OV2	Regenerative overvoltage trip during constant speed	Check motor cable Likely overloaded your brake resistor Reduce Load Reduce Speed Reduce Travel Distance Install a larger brake resistor
E.THM	Motor overload trip (electronic thermal relay function)	Reduce Load
E.OLT	Stall prevention	Reduce Load
E.OSD	Speed deviation excess detection	Check that the speed encoder is tight to the motor Swap Motor Cable Run a brake test - The Brake might not be releasing Check that Pr. 285 and Pr. 369 are set correctly
E.ECT	Signal loss detection	Your Speed Encoder is disconnected Plug in your signal cable Check 5VDC 1 Amp fuse on Stagehand Make sure your encoders are wired correctly and are able to receive a 5VDC power Input Change Pr. 800 to 10 - Don’t do this in lifting/hoisting applications
E.EP	Encoder phase fault	Check that your Speed Encoder is wired correctly

Uncommon

Code	Fault	Check-Points
E.OC1	Overcurrent trip during acceleration	Stagehand Pro does not use Drive Level Acceleration. This fault should never happen.
E.OC3	Overcurrent trip during deceleration or stop	Stagehand Pro does not use Drive Level Deceleration. This fault should never happen.
E.OV1	Regenerative overvoltage trip during acceleration	Stagehand Pro does not use Drive Level Acceleration. This fault should never happen.
E.OV3	Regenerative overvoltage trip during deceleration or stop	Stagehand Pro does not use Drive Level Deceleration. This fault should never happen.
E.THT	Inverter overload trip (electronic thermal relay function)	If the temperature of the output transistor elements exceeds the protection level Make sure Pr. 0, Pr. 14 are correct Check Speed encoder meets specifications and is wired correctly Reduce Load
E.FIN	Heat Sink Overheat	Check that the VFD fan is clean The VFD needs repair
E.UVT	Undervoltage	Check Input Power
E.ILF	Input phase loss	Check Input Power
E.SOT	Loss of synchronism detection	Not used, if you see this error, Your Stagehand Pro will need repair
E.BE	Brake transistor alarm detection	Remove Power Replace VFD
E.OS	Overspeed occurrence	Check Pr. 374 and Pr. 369