KEB COMBIVERT F6 Programming Manual

Motor parameterization
386
© 2022 KEB Automation KG
Speed search
Each time the modulation is switched on, the drive can perform an automatic
speed search and thus connect to a running motor. The speed search can be acti-
vated in dd16. The most favorable procedure is automatically selected internally.
When operating with an absolute value encoder, directly the speed and electrical
position are accepted.
When operating without encoder, the motor speed and the electrical position are
measured by test signals.
Index
Id-Text
Name
Function
0x3610
dd16
speed search mode
Activation of the automatic speed search
0x3612
dd18
speed search current [In]
Selection of the measuring current for speed deter-
mination
dd16
speed search mode
0x3610
Value
Name
Meaning
0
off
No automatic speed search
1
On
Automatic speed search
5
On, high speed, emf based
Speed search for synchronous high-frequency spindles.
The counter-voltage constant of the motor is used for the
calculation of the speed.
During the speed search, the modulation is switched on briefly with zero voltage.
The speed and position are determined from the step responses of the current.
The maximum measuring current for this function can be preset with dd18.
Precondition for a successful speed search is the identification / parameterization
of the equivalent circuit data, also in v/f operation.
Protection functions (ramp stop, current limitation in open-loop (v/f) operation)
Overview of protection functions
Function
Target
Intervention
modes of
operation
(co01)
control
mode (cs00)
v/f current
limit control
Limitation of the current
Voltage
all
v/f
LA(I)
Limitation of the current
Ramp setpoint at accelera-
tion (ACC)
velocitiy
v/f*
LD(I)
Limitation of the current
Ramp setpoint at decelera-
tion (DEC)
velocitiy
v/f*
LD(U)
Limitation of the DC link
voltage
Ramp setpoint at decelera-
tion (DEC)
velocitiy
all
*) only useful in v/f, but active in all control modes

KEB COMBIVERT F6 Specifications

General

Brand	KEB
Model	COMBIVERT F6
Category	Controller
Language	English