Setpoint Change-Over - Lenze i55AE125B Manual

Flexible I/O configuration

Setpoint change-over

14.3 Setpoint change-over
The inverter receives its setpoint from the selected standard setpoint source. Corresponding
functions make it possible to change over to other setpoint sources during operation.
Possible setpoint sources are:
Analog inputs
•
Keypad
•
Network
•
Parameterisable setpoints (presets)
•
Digital inputs (configured as HTL input for pulse train or HTL encoder)
•
"Motor potentiometer" function
•
"Sequencer" function
•
Details
For applications only requiring one setpoint it is sufficient to define the standard setpoint
source in the following parameters:
0x2860:001 (P201.01): Frequency control: Default setpoint source
•
0x2860:002 (P201.02): PID control: Default setpoint source
•
0x2860:003 (P201.03): Torque control: Default setpoint source
•
For a setpoint change-over during operation, the following functions must be configured. For
details and examples see the following subchapters.
Function
Activate AI1 setpoint
0x2631:014 (P400.14)
Activate AI2 setpoint
0x2631:002 (P400.02)
Activate keypad setpoint
0x2631:016 (P400.16)
Activate network setpoint
0x2631:017 (P400.17)
Activate preset (bit 0)
0x2631:018 (P400.18)
Activate preset (bit 1)
0x2631:019 (P400.19)
Activate preset (bit 2)
0x2631:020 (P400.20)
Activate preset (bit 3)
0x2631:021 (P400.21)
Activate setpoint via HTL input
0x2631:022 (P400.22)
Activate MOP setpoint
0x2631:025 (P400.25)
Activate segment setpoint (bit 0)
0x2631:026 (P400.26)
Activate segment setpoint (bit 1)
0x2631:027 (P400.27)
Activate segment setpoint (bit 2)
0x2631:028 (P400.28)
Activate segment setpoint´(bit 3)
0x2631:029 (P400.29)
546
Info
Activate analog input 1 / analog input 2 as setpoint source.
4Analog input setpoint source
^ 548
Activate keypad as setpoint source.
• The keypad setpoint can be changed in the operating mode via the navigation keys
4Keypad setpoint source
^ 551
Activate network as setpoint source.
4Network setpoint source
^ 553
Activate parameterisable setpoints (presets) as setpoint source.
• 15 frequency setpoints and 8 PID setpoints can be set as presets.
• A preset can be selected binary-coded via the four functions "Activate preset (bit 0)" ... "Activate preset (bit
3)".
4Setpoint source of preset setpoints
The digital inputs DI3 and DI4 can be configured as HTL input to evaluate the signal of a cost-effective HTL
encoder or a reference frequency ("pulse train").
4HTL input setpoint source
^ 565
The "Motor potentiometer" function can be used as an alternative setpoint control that is controlled via two
functions: "MOP setpoint up" and "MOP setpoint down".
4Motor potentiometer setpoint source (MOP)
Activate parameterisable segment setpoints as setpoint source.
• The four functions "Activate segment setpoint (bit 0)" ... " Activate segment setpoint´(bit 3)" enable a set-
point change-over to a segment setpoint parameterised for the "sequencer" function during normal opera-
tion.
4Setpoint source segment setpoints
^ 554
^ 559
^ 563
and keypad key.