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

Fault	Checkpoint
Power indicator isn't on	Check input power
Power indicator is on, but Stagehand Display is not	Check Control power Breaker (front) Check Control Power fuse (rear)
No encoder feedback on the Stagehand or Spikemark	Check Encoder Power fuse (rear) Check Sensor Input cable
Stagehand display showing Forward/Reverse/All Stop Interlock and External Fault Faults	Install Interlock terminator

Status Display

Reverse Limit Indicator

Forward Limit Indicator

Ultimate Limit Indicator

Cross Grooved Indicator

Reverse Interlock Indicator

Forward Interlock Indicator

All Stop Interlock Indicator

External Fault Indicator

VFD Faults

common

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