Lenze i550

10.4.10 Addive voltage impression
This funcon serves to boost (or lower) the motor voltage from the process via an addive
voltage setpoint in order to realise a load adjustment (for instance in case of winder applica-
ons).
NOTICE
A too high boost of the motor voltage may cause the motor to heat up strongly due to the
resulng current.
▶
Avoid a too high boost of the motor voltage!
The funcon is equally suitable for the closed loop V/f characterisc control.
Details
At a constant eld frequency, the output voltage of the inverter can be changed within a wide
range.
Example: Adaptaon of the voltage characterisc in case of V/f characterisc control as a
funcon of the load:
•
Clockwise rotaon (CW) is operaon in motor mode: Boost voltage.
•
Counter-clockwise rotaon (CCW) is operaon in generator mode: Lower voltage.
f
V
out
V/f characteristic
Operation in
generator mode
Operation in
motor mode
①
Selecng an addive voltage setpoint
Parameter
Address Name / seng range / [default seng] Info
0x2B13:001 Addive voltage impression: Enable Funcon
•
From version 02.00
1 = enable funcon.
0 Disable
1 Enable
0x2B13:002 Addive voltage impression: Setpoint source
•
From version 02.00
Selecon of the source for specifying the addive voltage setpoint.
•
100 % ≡ Rated voltage 0x2C01:007 (P320.07)
1 Analog input 1
2 Analog input 2
3 Network The addive voltage setpoint is dened via the mappable NetWordIN5
0x4008:005 (P590.05)data word.
201 Internal value (from version 05.03) Internal values of the manufacturer.
202 Internal value (from version 05.03)
203 Internal value (from version 05.03)
204 Internal value (from version 05.03)
205 Internal value (from version 05.03)
206 Internal value (from version 05.03)
0x2B13:003 Addive voltage impression: Actual voltage
•
Read only: x V
•
From version 02.00
Display of the current (boosted or lowered) voltage.
Conguring the motor control
V/f characterisc control for asynchronous motor (VFC open loop)
Addive voltage impression
190