ST600 | Multi-speeds with digital inputs – Simple frequency

English

Speed1=50Hz, Speed2=40Hz and Speed3=30Hz

P00.01 1 Operating command via terminal
P00.06 6 Frequency reference via multi-speed terminals
P00.11 4 Acceleration time 4 sec.
P00.12 4 Deceleration time 4 sec.
P05.01 1 S1 terminal for run command
P05.02 16 S2 = Multi-speed terminal 1 (T1)
P05.03 17 S3 = Multi-speed terminal 2 (T2)
P10.02 100 Speed level 0: 100% of target frequency P00.03
P10.04 80 Speed level 1: 80% of target frequency P00.03
P10.06 60 Speed level 2: 60% of target frequency P00.03

After the start command at S1, the frequency inverter starts at level 0, i.e. 100% of the target frequency, with an acceleration and deceleration time of 4 seconds.
If, in addition to S1, S2 is activated, the inverter switches to level 1 and runs at 40Hz.
If S3 and S1 are active, the inverter runs in level 2 at 30Hz.
If another speed level is required, speed level 3 can be programmed in P10.08, which is activated when both S2 and S3 are active.
Alternatively, if the terminals need to be switched independently, another terminal Sx can be parameterized with the value 18: Multi-speed terminal 3 (T3). In this case, speed level 4 becomes valid when activated and is parameterized in P10.10.

The following table shows which multi-speed terminals must be used and how they relate to the individual levels.

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