Additive Voltage Impression - Lenze i55AE125B Manual

Additional functions

Additive voltage impression

11.20 Additive voltage impression
This function serves to boost (or lower) the motor voltage from the process via an additive
voltage setpoint in order to realise a load adjustment (for instance in case of winder applica-
tions).
NOTICE
A too high boost of the motor voltage may cause the motor to heat up strongly due to the
resulting current.
▶ Avoid a too high boost of the motor voltage!
Details
At a constant field frequency, the output voltage of the inverter can be changed within a wide
range.
Example: Adaptation of the voltage characteristic in case of V/f characteristic control as a
function of the load:
Clockwise rotation (CW) is operation in motor mode: Boost voltage.
•
Counter-clockwise rotation (CCW) is operation in generator mode: Lower voltage.
•
Selecting an additive voltage setpoint
①
A detailed configuration example for this function can be found in the following subchapter.
Parameter Name / value range / [default setting]
0x2B13:001 Additive voltage impression: Enable Function
• From version 02.00
0 Disable
1 Enable
0x2B13:002 Additive voltage impression: Setpoint source
• From version 02.00
1 Analog input 1
2 Analog input 2
3 Network
0x2B13:003 Additive voltage impression: Actual voltage
• Read only: x V
• From version 02.00
0x2636:004 Analog input 1: Min PID value
(P430.04) (Analog input 1: AI1 PID @ min)
-300.00 ... [0.00] ... 300.00 PID unit
0x2636:005 Analog input 1: Max PID value
(P430.05) (Analog input 1: AI1 PID @ max)
-300.00 ... [100.00] ... 300.00 PID unit
0x2637:004 Analog input 2: Min PID value
(P431.04) (Analog input 2: AI2 PID @ min)
-300.00 ... [0.00] ... 300.00 PID unit
0x2637:005 Analog input 2: Max PID value
(P431.05) (Analog input 2: AI2 PID @ max)
-300.00 ... [100.00] ... 300.00 PID unit
502
Operation in
generator mode
V
out
Info
1 = enable function.
Selection of the source for specifying the additive voltage setpoint.
• 100 % ≡ Rated voltage
The additive voltage setpoint is defined via the mappable NetWordIN5
0x4008:005
Display of the current (boosted or lowered) voltage.
Definition of the setting range for PID control.
• The standard setpoint source for the reference value of PID control is
Operation in
motor mode
f
0x2C01:007 (P320.07)
(P550.05)data word.
selected in 0x2860:002 (P201.02).