| ASCII - Command | GV | |||
| Syntax Transmit | GV [Data] | |||
| Syntax Receive | GV <Data> | Available in | ||
| Type | Variable rw | MMI | Yes | |
| ASCII Format | Float | CANBus Object Number | 3548 (hex) | |
| DIM | - | PROFIBUS PNU | 1672 (dec) IND = 1 (dec) | |
| Range | 0.0 .. 62.5*GVTN | DPR | 72 (dec) | |
| Default | 1 | |||
| Opmode | 0, 1 | Data Type Bus/DPR | Integer32 | |
| Drive State | - | Weighting | 1000 | |
| Start Firmware | 1.20 | |||
| Configuration | No | Last Change of this Object | 1.8 | |
| Function Group | Velocity Controller | EEPROM | Yes | |
| Short Description | Velocity Control Loop: Proportional Gain | |||
Description
| That means, that a difference between N_cmd and N_actual of 3000 rpm with GV = 1 results in the peak current of the drive. This variable determines the proportional gain (also known as AC-gain). Adjust this variable by increasing the value to the level where the motor starts to oscillate. Then, back it off until the oscillations have clearly stopped. Typical values are between 10 and 20. If the GV value is too low, the drive is too soft and has poor damping. If the GV value is too high, the drive whistles or runs roughly. The gain is defined, that a velocity deviation of 3000rpm with GV = 1 results in the peak-current of the drive. Set FILTMODE to 1 or 3 to eliminate GV influence in OPMODE 2 & 3. |