KEB COMBIVERT F6 Programming Manual

Motor parameterization
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The following applies to all control types (A, K, P):
If value 3: 100µs is parameterized as "basic Tp“, value 4: 4xTpBase can also be
selected as time grid for "mid irq“ . The task "mid irq“ is then called every fourth
"basic Tp", i.e. every 400µs.
Applies only to control type P :
For each setting for "basic Tp“, the value "4: 4 x TpBase" can be parameterised
for mid irq. The smallest cycle time of the middle interrupt level is then 250 µs
with the setting basic Tp = 62.5 µs and mid irq = 4 x TpBase.
6.2.21.2 Scan times of position, speed and current controller
The following scan times of the internal control circuits also occur by the setting of
is22.
Table with scan times of some functions:
Basic
grid
Tp
Scan times
Current control-
ler, motor
model, hf injec-
tion
Speed con-
troller,
position
controller
Digital inputs,
analog inputs,
state machine,
operating modes
Digital outputs,
analog output
62.5 µs
62.5 µs
250 µs
500 µs
1000 µs
71 µs
71 µs
286 µs
571 µs
1143 µs
83 µs
83 µs
333 µs
667 µs
1333 µs
100 µs
100 µs
400 µs
800 µs
1600 µs
Assignment of some functions to the interrupt levels
Interrupt level
Assigned functions (selection)
fast irq
Motor model, current controller, speed controller, position controller,
encoder interface, hf injection
mid irq
Digital inputs, analog inputs, status machine, operating modes, PDOs,
system counter
slow irq
Digital outputs, analog output
There is another dependency for the effective controller cycle times: the actual ac-
tive switching frequency (displayed in ru72 act. switch. freq (kHz)).
Although the controller is called in a faster grid, only 2 voltage values per modula-
tion period can be output at a switching frequency of 2 kHz. This means that, de-
spite a current controller cycle of 62.5 µs, the voltage can only be changed every
250 µs (with switching frequency group 0: 62.5 µs).

KEB COMBIVERT F6 Specifications

General

Brand	KEB
Model	COMBIVERT F6
Category	Controller
Language	English