Password Problem In Gd3000series Cegelec Vvvf

hi

while working with one GD3207E (Cegelec make vvvf ) recently I faced a problem with the locking of engineering password. The engineering password was in locked condition and no one had the clue regarding the password. Does any one has any experience of working on Cegelec drives? Is there any way by which we can defeat the password and laod a new password .

regards

motor sizing

Hi

I need to run a turn table weighing some 1000 kg within a speed range of 2 to 10 rpm using 3 PHASE INDUCTION MOTOR ,gear reducers and a variable speed drive .
Motor specs RPM - 1485, 0.37 KW , NOMINAL TORQUE 2.5 Nm
Gear reducers - There are two gear reducers ,first gear box of ratio 1/40 connected at motor output and the next one 1/10 connected to the output of the first gearbox . The output of the 2 nd gear bos is connected to the shaft of the turn table. That should provide 1000Nm torque at shaft turn table shaft .

I am not sure if the rating of the motor is adequate .CAN SOMEONE TELL ME? If its not sufficient how to decide a safe rating .

Also the turn table being a high inertia load do I need to consider breaking resistor for the drive.
Any specific thing to consider to decide the ramp up and down time .
Belive it should be considered constant torque load . Any advise or suggestion please.
Regards

Subhashish