The start-up and stop control of the VFD includes three states: start after the running command during normal powering on, start after the restarting function becomes valid during normal powering on and start after the automatic fault reset. Below is the detailed instruction for three startings.
There are three starting methods for the VFD: start from the starting frequency directly, start after the AC braking and start after the rotation speed tracking. The user can select according to different situations to meet their needs.
For the load with big inertia, especially in the cases where the reverse rotation may occur, it is better to select starting after DC braking and then starting after rotation speed tracking.
Note: it is recommended to use the direct starting to drive synchronous motor.
1. The starting logic figure of starting after the running command during the normal powering on.
2. The starting logic figure of starting after the restarting function becomes valid during the normal powering on.
3. The starting logic figure of starting after the automatic fault reset.
Related parameters
Function code | Name | Detailed instruction of parameters | Default value |
P00.01 | Running command channel | 0: Keypad 1: Terminal ("LOCAL/REMOT" flickering) 2: Communication ("LOCAL/REMOT" on) | 0 |
P00.11 | ACC time 1 | 0.0–3600.0s | Depend on model |
P00.12 | DEC time 1 | 0.0–3600.0s | Depend on model |
P01.00 | Start mode | 0: Start-up directly 1: Start-up after DC braking 2: Start-up after rotation speed tracking 1 | 0 |
P01.01 | Starting frequency of direct start | 0.00–50.00Hz | 0.50Hz |
P01.02 | Retention time of the starting frequency | 0.0–50.0s | 0.0s |
P01.03 | The braking current before starting | 0.0–100.0% | 0.0% |
P01.04 | The braking time before starting | 0.00–50.00s | 0.00s |
P01.05 | ACC/DEC selection | 0: Linear type 1: Reserved | 0 |
P01.08 | Stop mode | 0: Decelerate to stop 1: Coast to stop | 0 |
P01.09 | Starting frequency of DC braking | 0.00Hz–P00.03 (Max. output frequency) | 0.00Hz |
P01.10 | Waiting time of DC braking | 0.00–50.00s | 0.00s |
P01.11 | DC braking current | 0.0–100.0% | 0.0% |
P01.12 | DC braking time | 0.00–50.00s | 0.00s |
P01.13 | Dead time of FWD/REV rotation | 0.0–3600.0s | 0.0s |
P01.14 | Shifting between FWD/REV rotation | Set the threshold point of the VFD: 0: Switch after 0 frequency 1: Switch after the starting frequency 2: Switch after the speed reached P01.15 and delay of P01.24. | 0 |
P01.15 | Stopping speed | 0.00–100.00Hz | 0.50 Hz |
P01.16 | Detection of stopping speed | 0: Speed setting (the only detection method in SVPWM mode) 1: Speed detecting value | 1 |
P01.18 | Terminal running protection when powering on | 0: The terminal running command is invalid when powering on 1: The terminal running command is valid when powering on | 0 |
P01.19 | Action if running frequency<lower limit frequency (valid when lower limit>0) | 0: Run at the lower-limit frequency 1: Stop 2: Hibernation | 0 |
P01.20 | Hibernation restore delay time | 0.0–3600.0s (valid when P01.19=2) | 0.0s |
P01.21 | Restart after power outage | 0: Disable 1: Enable | 0 |
P01.22 | Waiting time of restart after power outage | 0.0–3600.0s (valid when P01.21=1) | 1.0s |
P01.23 | Start delay time | 0.0–60.0s | 0.0s |
P01.24 | Delay time of the stop speed | 0.0–100.0s | 0.0s |
P05.01–P05.09 | Digital input function selection | 1: Forward rotation operation 2: Reverse rotation operation 4: Forward rotation jogging 5: Reverse rotation jogging 6: Coast to stop 7: Fault reset 8: Operation pause 21: ACC/DEC time option１ 22: ACC/DEC time option２ 30: ACC/DEC prohibition | |
P08.06 | Jogging frequency | 0.00Hz–P00.03 (Max. frequency) | 5.00Hz |
P08.07 | Jogging ACC time | 0.0–3600.0s | Depend on model |
P08.08 | Jogging DEC time | 0.0–3600.0s | Depend on model |
P08.00 | ACC time 2 | 0.0–3600.0s | Depend on model |
P08.01 | DEC time 2 | 0.0–3600.0s | Depend on model |
P08.02 | ACC time 3 | 0.0–3600.0s | Depend on model |
P08.03 | DEC time 3 | 0.0–3600.0s | Depend on model |
P08.04 | ACC time 4 | 0.0–3600.0s | Depend on model |
P08.05 | DEC time 4 | 0.0–3600.0s | Depend on model |
P08.28 | Automatic fault reset times | 0–10 | 0 |
P08.29 | Interval time of automatic fault reset | 0.1–3600.0s | 1.0s |