KEB COMBIVERT F4-F Applications Manual

6 5
KEB COMBIVERT F4-F
6
Name: Basis
11.05.99
Chapter
Section Page Date
© KEB Antriebstechnik, 1999
All Rights reserved
Functional Description Motor Data and Controller Adjustment
6.5.7 Boost (dS.11)
In controlled operation the boost defines the output speed at 0 Hz. The adjustment is
done in percent related to the value of the output voltage stabilization set in dS.10.
The boost is effective in controlled operation only.
6.5.8 Output Voltage
Stabilization
(dS.10)
Fluctuations of the system voltage or of the load can cause the DC-link voltage to
change and with it the directly dependent output voltage. At activated output voltage
stabilization the fluctuations of the output voltage are balanced. This functions also
allows the adaption of motors with a smaller rated voltage to the inverter.
In controlled operation this function provides an optimal limit torque characteristic, if
the adjusted value corresponds to the inverter input voltage. At deactivated function
the limit characteristic is calculated to inverter nominal voltage.
U
f
Fig. 6.5.5 U/f-characteristic
The voltage/frequency characteristic (U/f) is defined through following parameters:
• Rated motor frequency (dr.3)
• Rated motor voltage (dr.12)
• Boost (dS.11)
• Corner speed field weakening (dr.19)
• Output voltage stabilization (dS.10) or
max. output voltage
6.5.5 U/f-Characteristic
Output voltage stabilization dS.10
Rated motor voltage dr.12
Boost dS.11
dr.3
Rated motor frequency
dr.19 x PPZ
60
6.5.6 Corner Speed /
Field Weakening
(dr.19)
The corner speed defines the speed at which the field weakening range starts.
dr.19: Corner speed field weakening
PPZ: Pole pair no. (4-pole motor > 2 pole pairs)

KEB COMBIVERT F4-F Specifications

General

Brand	KEB
Model	COMBIVERT F4-F
Category	Lifting Systems
Language	English