Troubleshooting

Though the combination of the Floorpocket, Stagehand Pro AC, Showstopper 3, and Spikemark strives to make automation easy, there are certainly times when things don’t work. This part of the guide will give you some earned advice about what culprits to look for when motors refuse to move.

Problem	Checkpoint
When running forward (UP), the encoder position decreases. When running reverse (DOWN), the encoder position increases	The encoder and motor have electrically inverse polarity. You need to either change the motor wiring or the encoder wiring. Rewire the encoder to match the motor polarity: Swap signal A with signal B. Swap signal /A with signal /B. You may need to rewire both the Position and Speed encoder signals.
Motor runs roughly or makes strange noises when jogging manually.	Run the auto-tuning procedure outlined in the Restoring VFD Parameters found on http://cci.fyi/restore Test both brakes for functionality
The FWD LIMIT, REV LIMIT and ULT LIMIT fault messages are displayed on the status screen and the motor won’t move.	Make sure the Signal cable is plugged into the Stagehand Pro AC, Safety Interlock Box and Floorpocket. Check limit switch connections at the limit junction box. Check the placement of your limit switches. If both are physically activated, adjust the placement to clear one or both switches.
I’m trying to jog the motor, but the status display shows “SET IP”	The motion controller is in IP Address setting mode, which happens when the knob is pressed (either intentionally or just bumped in passing). Turn the knob until the cursor is blinking over the word CANCEL and then press the knob. The motion controller will now be in normal mode and can jog the motor again.
Floorpocket manually jogs smoothly but has jerky motion in a cue	Use the Brake Test Buttons on the Stagehand Pro AC to ensure that both brakes are disengaging. Confirm all VFD parameters are set correctly. Run the auto tune process outlined in the Stagehand Pro AC manual. Adjust the PID tuning parameters in Spikemark (see Spikemark manual). Call Creative Conners, Inc.
Stagehand Pro AC displays “Brake Fault”	Ensure that the motor and brake cable is connected at the Stagehand and the Floorpocket Ensure that the signal cable is connected to the Stagehand Pro AC, Safety Interlock Box and Floorpocket. Ensure that the control cable connector is plugged in. Call Creative Conners, Inc. with the fault code displayed on the Mitsubishi keypad.
When trying to move, the Stagehand Pro AC displays “Drive Fault”	Ensure that the motor and brake cable is connected at the Stagehand and the Floorpocket Ensure that the signal cable is connected to the Stagehand Pro, Safety Interlock Box and Floorpocket. Ensure that the control cable connector is plugged in. Call Creative Conners, Inc. with the fault code displayed on the Mitsubishi keypad.

ommon Mitsubishi A800 VFD Fault Codes

Error Code	Name	Description
E.ECT	Encoder Signal Loss	The Speed Encoder is disconnected, make sure it’s wired up and plugged in.
E.OSD	Speed Deviation Error	Caused by a mismatch between encoder feedback and command motor speed. Make sure the Speed Encoder is properly wired and plugged in. Can also be caused by a brake failure or loose brake connection.
E.OS	Overspeed Occurrence	The motor was running faster than the maximum value programmed for the drive. This usually means the motor was in free fall. Remove the load from the motor and begin testing in a controlled environment to determine if the machine is healthy. Can also be caused by a brake failure or loose brake connection.
E.THM	Overload Trip	Primary causes are either too much load or a failure of the brake(s) to release. Confirm the lifting platform is not overloaded or binding, then check brake functionality.
E.OV2	Over Voltage Error	The primary cause is when the platform is moving down. The load applied to the motor turns the motor into a generator sending electricity back to the Stagehand. The Stagehand has a built in Brake Resistor to prevent this. However, under high duty cycle at full load and full speed, this fault may occur. Fixes are decreasing load, speed, or duty cycle while running the machine.

TECHNICAL SUPPORT

If you get stuck, we’re here to help. The best way to get in touch with a tech expert is via email - even during normal business hours - because most days we are spread around the shop and may not be near the phone. There’s someone in the office from 8:30a-5pm EST Monday - Friday and will return an email or phone call quickly. After hours (honestly when most tech support issues arise) we have a crack team monitoring email and voicemail who will respond quickly to help get you moving.

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