Stagehand Pro 5: Troubleshooting

Reverse Limit Indicator

Forward Limit Indicator

Ultimate Limit Indicator

Cross Grooved Indicator

Forward Interlock Indicator

Reverse Interlock Indicator

All Stop Interlock Indicator

External Fault Indicator

E.OC1

Overcurrent trip during acceleration

• 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.

• Check Pr.07 is set to 0.1

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

• Check Pr.07 & Pr.08 are set to 0.1/ul>

E.OC3

Overcurrent trip during deceleration or stop

• 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.

• Check Pr.08 is set to 0.1

E.OV1

Regenerative overvoltage trip during acceleration

E.OV2

Regenerative overvoltage trip during constant speed

• The most common resons to see an E.OV2 fault on the Stagehand is due to loading, distance traveled (in) and speed.

• Reduce the load, speed or travel distance.

E.THM

Motor overload trip (electronic thermal relay function)

• The most common reason to see the E.THM fault is because Pr.9 is set incorrectly (too low)

E.ECT

Signal loss detection

This fault means the VFD has lost the speed encoder signal.

• Check the Sensor Cable is connected

• Check the encoder fuse on the Stagehand

E.OS

Overspeed Occurance

Check Pr.369 and Pr.374

E.OSD

Speed Deviation excess detection

This fault can rear its ugly head if there's a difference between the commanded speed and the actual speed.

• Most likely caused by a brake issue.

• Check or replace the Motor/Brake cable

• Confirm motor and encoder phasing is correct

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.

Code

Fault

Check-Points

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