| ASCII - Command | GVFR | |||
| Syntax Transmit | GVFR [Data] | |||
| Syntax Receive | GVFR <Data> | Available in | ||
| Type | Variable rw | MMI | Yes | |
| ASCII Format | Float | CANBus Object Number | 354B (hex) | |
| DIM | - | PROFIBUS PNU | 1675 (dec) IND = 1 (dec) | |
| Range | 0.0 .. 1.0 | DPR | 75 (dec) | |
| Default | 1.0 | |||
| Opmode | All | Data Type Bus/DPR | Integer32 | |
| Drive State | - | Weighting | 1000 | |
| Start Firmware | 1.00 | |||
| Configuration | No | Last Change of this Object | 1.0 | |
| Function Group | velocity loop | EEPROM | Yes | |
| Short Description | PI-PLUS Actual Velocity Feedforward | |||
Description
| GVFR is a tuning variable of the velocity control loop which sets the feed-forward to feedback gain ratio for the Pseudo Derivative Feedback with Feed-Forward. (PDFF or PI+) . With GVFR 1 the behavior of the velocity control loop is like a standard PI controller. GVFR 0.65 is a value which suppresses step response overshoot. |