Siemens SINUMERIK 840C Installation Instructions Manual page 982

09.95
The input quantity compensation is controlled via bit 3 of the IKA configuration.
This type of compensation is only possible in SW 3! If the compensation value is too large,
the compensated axis tends to oscillate.
Extended IKA function
Bit 4=0:
Bit 4=1:
Note:
The bit is automatically set if the function is programmed via G401 or G411.
Position-related activation direction-dependent
Bit 5=0:
Bit 5=1:
Position-related activation overtravel direction negative
Bit 6=0:
Bit 6=1:
Note:
If you specify the start position and the required overtravel direction of the G412
instruction, bits 5 + 6 are automatically set. The control also only calculates the
associated start position as a function of the current actual interpolation value of the input
quantity.
Interpolation cubic
Bit 7=0:
Bit 7=1:
A newly available method of IKA is the cubic interpolation between the interpolation points,
i.e. a constant tangential function is applied at the transition (interpolation) points.
The cubic interpolation method therefore affords a reduction in data.
K'
© Siemens AG 1992 All Rights Reserved
SINUMERIK 840C (IA)
More user manuals on
IKA (limited range of functions!)
IKA Stage 2 active
The IKA configuration is activated or deactivated direction
independently with position-related activation
The IKA configuration is activated or deactivated direction dependently
with position-related activation
The IKA configuration is activated in the positive travel direction
The IKA configuration is activated in the negative travel direction
Linear interpolation between the interpolation values
Cubic interpolation between the interpolation values
K (Output quantity values)
P2
P3
P1
B
ManualsBase.com
12.19.5 Interpolation and compensation with tables
Data type: 40 Format: 1 Bit
Data type: 41 Format: 1 Bit
Data type: 42 Format: 1 Bit
Data type: 43 Format: 1 Bit
P4
P6
P5
Compensation point
6FC5197- AA50
12 Functional Descriptions
Linear interpolation (IKA and IKA Stage 2)
Cubic interpolation (IKA Stage 2)
B (Input quantity values)
12–207