Hello Julito;
Hyperterminal generally uses COMx port on RS-232. See the quote below:

Parameter settings on MM420 for USS

The MM420 has two possible serial interfaces which can be used for USS

communication: RS232 and RS485. The RS232 is realised using an option

module (order no. 6SE6400-1PC00-0AA0). The RS485 interface uses

terminals 14 and 15 for P+ and N- respectively.

In the parameter documentation, USS via RS485 is sometimes referred to as

USS2 while USS via RS232 is referred to as USS1. In each case the

telegram structure is the same. The USS parameters usually contain two

indices, index 0 for RS485 and index 1 for RS232.

So either you use Hyperterminal/COMx through a RS-232 to RS-485 converter, or you look for the RS-232 option module shown above (not sure if the part number is relevant to your particular drive, please check your manuals).

Attached you will find a USS protocol pdf manual (from which is extracted the earlirr quote); it will guide you in the parameters required on the drive.

Hope this helps,
Daniel Chartier