ST500 | Program Sequences – PLC Programming
With the frequency inverter ST500 it is possible to let run program sequences timed. A site of operation would be a grinding machine where the direction has to reverse in getting the same procedures to align the abrasive new. After triggering the Run command, the PLC program is started. At an interruption the program continues on from the last program point.
It is possible to define 16 successive program sequences with up to four different brake and delay times.
PLC programming:
| F0.03=7 | Frequency control via the PLC program |
| E1.16=2 | Continuous PLC program flow |
| E1.17=11 | Resume from the last position in case of interruption |
| E1.51=0 | Reference frequency (E1.00) |
| E1.00=100 | Stage0 100% of the frequency F0.19 FWD |
| E1.18=3600 | 1 hour forward |
| E1.19=1 | Braking time / acceleration time 2 (F7.08, F7.09) |
| E1.01=-100 | Stage1 100% of the frequency E1.00 RWD |
| E1.20=3600 | 1 hours backwards |
| E1.21=2 | Braking time / acceleration time 3 (F7.10, F7.11) |
| F7.08=4 | Acceleration time 4sec |
| F7.09=2 | Braking time 2sec |
| F7.10=10 | Acceleration time 10sec |
| F7.11=3 | Braking time 3sec |