Overview
The “Motor restart inhibit” function prevents from restarting the motor if the rotor of the motor would exceed the permissible thermal limit due to the start (Thermal stage), and also from multiple starts and stops in a short time interval (Counter stage). It ensures that a certain amount of time passes between stop and restart of the motor (Timer stage).
For more detailed information on “Motor restart inhibit” function, refer to SIPROTEC 5 devices, V8.30 & higher manuals.
To see other supported functions, click here.
Structure/Embedding of the Function
Setting Parameters
Setting parameters for Thermal Stage
| Addr. | Parameter | C | Setting Options | Default Setting |
| General | ||||
| _:2311:102 | General:Autom. restart inhibit | no yes |
yes | |
| Thermal stage | ||||
| _:11221:1 | Thermal stage:Mode | off on test |
off | |
| _:11221:103 | Thermal stage:Min. restart inhibit time | 0.2 min to 500.0 min | 6.0 min | |
Setting parameters for Counter Stage
| Addr. | Parameter | C | Setting Options | Default Setting |
| Counter stage | ||||
| _:1 | Counter stage:Mode | off on test |
off | |
| _:106 | Counter stage:Perm. no. of starts | 1 to 6 | 3 | |
| _:105 | Counter stage:Time interval (per.starts) | 20 min to 120 min | 60 min | |
Setting parameters for Timer Stage
| Addr. | Parameter | C | Setting Options | Default Setting |
| Timer stage | ||||
| _:1 | Timer stage:Mode | off on test |
off | |
| _:104 | Timer stage:Min. time between starts | 0 min to 120 min | 10 min | |
Logic Diagrams & highlights
Logic Diagram of the Thermal Stage
Rotor-Temperature Curve and Repeated Motor-Starting Attempts
Total restart-inhibit time calculation
Processing the Restart Inhibit Signal
Logic Diagram of the Counter Stage
Logic Diagram of the Timer Stage
