Beckhoff AX2000 - 24 Screen Page Gearing

24 Screen page "Gearing"
The servo amplifier receives a position setpoint from another instrument (master servo amplifier, stepper motor
control, encoder or similar) and controls the position of the motor shaft in synchronism with this master (control)
signal.
Cycle time of the electrical gearing: 250 µs. A value averaged over 1000 µs is used.
Gearing mode
ASCII: GEARMODE
Default: 6 valid for OPMODE 4
The servo amplifier can be controlled through different interfaces and from various sources.
For the connector pin assignments, see the Installation Manual.
ID Function Comments
0
Encoder follower
Dig.I/O 24V (X3)
With an incremental encoder (track A/B, 24V signal level) connected to the
digital inputs DIGITAL-IN ½, terminals X3/11,12. An additional function
assignment for the inputs is not necessary, and any assignments on the
screen page "Digital I/O" will be ignored.
1
Pulse / direction
Dig.I/O 24V (X3)
With a stepper motor control (pulse/direction, 24V signal level) connected to
the digital inputs DIGITAL-IN ½, terminals X3/11,12). An additional function
assignment for the inputs is not necessary, and any assignments on the
screen page "Digital I/O" will be ignored.
2
reserved
3
Encoder follower
5V (X5)
Set encoder emulation to "INPUT". With an incremental encoder (track A/B,
5V signal level) connected to connector X5. In this case, the incremental
position signal from another amplifier can be used as the master signal.
4
Pulse / direction,
5V (X5)
Set encoder emulation to "INPUT". With a stepper motor control
(pulse/direction, 5V signal level) connected to connector X5.
5
reserved reserved
6
Sin Encoder, (X1) With a sine/cosine encoder connected to connector X1.
7
Sin Encoder, (X1)
+Protocol +analog
Read in the SSI position via the Encoder interface. Every 250µsec the SSI
position is captured and the difference to the preceding position is calculated.
Subsequently, this difference is multiplied by the scaling factor and added to
the last position setpoint.
Ratio
ASCII: ENCIN (x)
Default: 4096 valid for OPMODE 4
ASCII: GEARO (y)
Default: 8192 valid for OPMODE 4
ASCII: GEARI (z)
Default: 8192 valid for OPMODE 4
You can use the entry fields in this equation to determine the transmission ratio:
Ratio =
Input pulses per turn
*
y
(electr. gearing, correction factor through An In 2).
xz
where: x = normalization for the input pulses (256 ... actual no. of pulses)
y/z = ratio with y = –32767 ... +32767 andz=1...32767
If you have any queries, please contact our applications department.
Setup Software 79
BECKHOFF 07/03 Screen page "Gearing"