58
XtrapulsCD1-a
Chapter 8
– Appendix
The choice of the speed loop bandwidth defines the cut-off frequency value of the closed loop frequency response
(Low = 50 Hz, Medium = 75 Hz, High = 100 Hz).
The choice "minimum following error" allows an accurate following of the position reference value during the entire
motor displacement. In this case, all feedforward gain values are calculated.
The choice "minimum position overshoot" allows a motor positioning without any overshoot of the target position.
In this case, all the feedforward gain values are set at 0, and the motor position is lagging with regard to the
position reference value during the entire motor displacement.
13 - DRIVE ADDRESSING VIA RS-232
The XtrapulsCD1-a drives allow a multi-axis connection with a host PC via the RS-232 serial link according to
following connection diagram.
The connection of the various units (host PC and drives) is made as a ring: the transmission signal (TxD) of each
unit is connected to the reception signal (RxD) of the next unit. Each XtrapulsCD1-a drive has got 4 micro-
switches allowing an address assignment. The XtrapulsCD1-a drives inside the ring must have different
addresses. An address in multi-axis configuration must have a value between 1 and 15. The 0 address
corresponds to the single-axis communication configuration (no addressing).
The connection with an drive
with address “X” is made by selecting the drive address “X” in the
Setup
menu of the
VDSetup
software.