
A.8.2 Velocity Loop 
Feature Details 
Controller type  PI 
Velocity control   Fully digital 
 Programmable PI and FFW control filters 
 On-the-fly gain scheduling 
 Automatic, manual and advanced manual tuning
Velocity and position feedback 
options 
 Incremental Encoder 
 Digital Halls 
 Interpolated Analog (sin/cos) Encoder (optional) 
 Resolver (optional) 
 Tachometer and Potentiometer (optional) 
Note: With all feedback options, 1/T with automatic 
mode switching is activated (gap, frequency 
and derivative). 
Velocity loop bandwidth  < 350 Hz 
Velocity sampling time   140 - 200 µsec (x2 current loop sample time) 
Velocity sampling rate  Up to 8 kHz; default 5.5 kHz 
Velocity command options   Analog 
 Internally calculated by either jogging or step 
Note: All software-calculated profiles support 
on-the-fly changes. 
A.8.3 Position Loop 
Feature Details 
Controller type  “1-2-4” PIP 
Position command options   Software  
 Pulse and Direction 
Position loop bandwidth  < 80 Hz 
Position sampling time   280 - 400 µsec (x 4 current loop sample time)  
Position sampling rate  Up to 4 kHz; default 2.75 kHz 
Tuba Installation Guide Technical Specifications 
MAN-TUBIG (Ver. 1.3) 
A-8