Please refer to the Function Diagram 92 in the Compendium VC 3.4

You can find this here:http://support.automation.siemens.com/WW/view/en/13472409

You mention that your drive has options (This is the -Z at the end of the part number)

If your drive has a K80 option, then the Function Diagram reference is essential, if not, then you are back to a hardware fault. This can be really be most of the items in the drive, but there are some relatively simple checks to make.

Using a Diode checker and with the power switched off for at least 5 minutes, measure between Incoming live terminals and the DC supply (Then change polarity), and between the DC supply and the motor Ouput terminals (then change polarity). You should measure 12 diodes in total.

With all power still off, double check connections, i.e. CUVC is correctly seated, no bent pins. All fibreoptic cables well connected. 24VDC power cable is plugged securely into IGD board. Also, check the ABO board at the bottom of the CUVC is inserted securely (Be careful, this is as fragile as a computer RAM stick)

If you apply control volts, thenI will assume that becasue this is an 1100Amp unit that there are fibre optic cables in use. Extract and look at the 3 UCE feedback cables (they should all be lit assuming the 24VDC control supply is on). These normally trigger F025, F026, or F027, but can sometimes be overriden by F017.

I have seen a CT trigger an F017 (Normally this would be F029, but I could not explain why, with a new CT, the drive was fine again)

You could try using a Masterdrives testbox, these are not really so expensive and can provide lots of diagnostic information. The part number is 6SE7090-0XX84-1FK0

Hope this helps a little.

Regards,

Graeme