The Environment Variable Fbch; Special Features For System Parameters For Servo And Stepper Motor Axes - Addi-Data CPCI-8004 Commissioning Manual

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Value Oversampling factor
0 No oversampling
2
1
2 4
3 8
4 16
5 32
6 64
If other values are programmed, oversampling will be deactivated. The default value is 0.
Example:
set AD7606OS 6

3.12.7 The environment variable FBCH?

Feedback channel: An available analog input can be allocated to an analog actual value channel. This
variable is only significant for axes with motor types "ANALOG PWM" (Section 3.12.1.4), "ANALOG /
ANALOG" (Section 3.12.1.6), "CI_ANALOG" and "CD_ANALOG" (Section 3.12.1.16).
FBCHx y: x is the index of the axis to which the channel is assigned; y is the index of the analog input (0...7)
or of the common variable (0...999) that is to be read as a feedback channel. If this variable is not set, each
axis channel 0..7 is assigned the respective analog input channel 0..7.
Example:
set FBCH0 0
3.13 Special features for system parameters for servo and stepper
motor axes
Please note the system parameters listed below, which must be set accordingly in the system.dat system file
using the mcfg.exe application.
Operating mode
Servo motor
Stepper motor
Conversion time / µs
5
10
20
40
80
160
320
Parameter/page
Motor type {mt} /
motion parameters
Encoder slits or step
pulses /
motion parameters
Motor type {mt} /
motion parameters
Encoder slits or step
pulses /
motion parameters
Filter parameter {kp} /
motor-specific
parameters
Value/meaning
Servo/operating mode selection
Slits/strokes (electronic quadrupling is considered)
Stepper/operating mode selection
Pulses/steps (no electronic quadrupling)
0.04 (is set by the system))/ any other value will
lead to instable control behaviour
Note: as of mcfg.exe version
2.5.0.45, {kp} can no longer be edited for stepper
motors. You require rwmos.elf firmware version
2.5.0.4 or later
CM / C M
OMMISSIONING ANUAL