TA20-218-A – CCS DISPLAY UPDATE_EN
Sequence for forcing an update by USB to display
Slew Drive shuts off during acceleration
Slew drive starts up normally, and begins to swing, but coasts to stop and drive shuts down with code 7510 (FBA A comm loss func). Could not get code to clear or swing to operate. Checked CanOPEN card and both status lights looked good. FEN 31 (encoder card) also had 2 green lights, but tried to remove encoder connectors and still could not get to work. Per JP’s recommendation, remove LFC and CCL plugs and install jumpers. Remove network cables from Trolley and Hoist drives. Restart crane and test swing, and it works normally with no faults. Plugged back in trolley network cable, and swing would still work. Plugged in Hoist network cable and Swing drive would fault without Hoist drive even being turned on. It was determined that there was a fault in the keypad of the Hoist drive. Replace keypad and crane worked normally.
*For notes. JP determined there was a fault in the communication system (FBA A Field Bus Adapter), but wanted to isolate what it was. It was a communication fault through the Can Bus system. By isolating just the swing drive and swing encoder, we could start to determine it was either of those. If the Hoist keypad hadn’t caused failure, we would have added back the LFC and CCL plugs 1 at a time to determine if it was a communication fault in the drives, or encoders which also communicate through the Can Bus. Also note that CAN H and CAN L should produce approx 2.5 VDC to “-” on terminal strip. This could determine if there is a short to ground. If the voltage is 0 or low, begin unplugging devices until voltage is restored
AFE1 and/or AFEB Faults on start up
TA19-149-A – ACS880 SLEWING CONVERTER MESSAGE AFE1 AFEB (OFF2) FIP CARD_EN
Bypass FIPO card per bulletin
If adding shunt, add to Blue 5 Pin connector at terminals #3 and #5
Adjusting Hoist Brake Microswitch on MDT 219
Crane will not start – Three phase power missing
Operator complains crane will not start and the display shows Three phase power supply missing. Check for incoming power and all 3 phases. If power is correct on each of the three legs (277 VAC), check contactor K102M. A1 terminal should be receiving 277VAC on the A1 terminal. If that is correct, coil in contactor may be bad. Remove wire from terminal 22, hold in contactor and start the crane. If crane starts and runs, the contactor coil has failed.
To bypass contactor K102M wire the incoming and outgoing 3 phase wires together and disconnect terminal 22 on K102M. This will allow the crane to function until the K102M can be replaced.
Potain part # for K102M = 84034156
HUP will not accept Zero Load
After software upfate, in which SCM and CCT were erased, crane would not accept Zero Load during teach in. Need to repair loadpin, and re teach Zero load.
Adjusting Hoist Motor Brake Microswitch
Procedures from the manual for proper adjustment of the microswitch on the hoist brake
List of Icons On Radio Remote for CCS Cranes
Crane only moves at slowest speed with all functions
Customer was operating MDT crane with remote, but all functions were slow. Had the following icon on the display of the remote:
Crane was in P+ mode, which allows for greater capacity, but slows function. On the remote this is controlled with ” A-B ” switch.
In the cab this is controlled by the gray button on the top of the left joystick.
Weathervane adjustment for MDT Tower Cranes
Make sure both motors are adjusted per instructions.
If the weathervane light does not display on LMI or the remote, adjust the microswitch as follows.
With the motor in weathervane and the brake is locked in the release position. Adjust the blade that contacts the microswitch. Careful to make sure the blade just contacts the microswitch and doesn’t smash the switch.
