Order Details:
- 2X Delta ROV 6mm Fiber tether 2000m
- 1x Cable sock
- 2x SS Shackles
- 1x Surface connector
- Assembly
- 1X DROV Winch 001
- Motorized
- Fiber FORJ
- Surface power system
- Transport box
26 Jan 2022
- Partial payment received
- Begin ordering parts
02 Feb 2022
- Received final payment
19 June 2022
Update: Winch aluminum parts received yesterday around 1630 hours.
Next step: Assembly.
08 July 2022
Done connecting/soldering the data wires and power wires of the motor to the data connector and power connector respectively.
Next Step: Install the slip ring.
05 August 2022
Update: Wiring in progress. Highlighted on the printed diagram are wiring connections that are done.
19 August 2022
Update: Result of OTDR on one of the two 2000m Fiber cable, received last Aug 11,2022
Next step, spooling of the 2000m fiber cable
22 August 2022
Spooling of 2000m tether cable done. OTDR test after spooling shows no sign of fiber optic disconnection. Splicing of other end ongoing. 1m fiber cord at 2inch housing ongoing assembly.
23 August 2022
UPDATE: 1st 2000m spool and termination done and ready to be shipped.
Started 2nd 2000m spooling. Reached 500m with the winch and OTDR results still perfect.
25 August 2022
Update: Finished spooling the 2nd 2000m spool and OTDR results still perfect.
Next step: Unspooling
30th August 2022
We spooled and unspooled a total of 8km without issue and on Friday 26th, for no apparent reason, the motor stopped working.
Using the controller diagnostic software we found that HALLs U and W were not working. We tested the controller inputs and they were found to be working. Our cabling was also testing good so we decided to disassemble the winch to take the motor out.
Once we opened the motor, the issues were obvious. Bad soldering of the encoder rires U and W on the HALL PCB.
As to the reasons these came loose is clearly a manufacturing soldering defect from the motor manufacturer. After the motor became hot the poor soldering let go of the wires.
This is the first time we have had a quality issue with these motors and the manufacturer has been advised.
We are now reflowing all the wires on the motor and will reassemble everything and start running tests again.
Regards,
Etienne
31 August 2022
Update: Winch reassembled and is now working properly. Stress test ongoing with 120rpm speed.
