HEIDENHAIN IK 5294 - Manual (Page 252)

232 QC5200 Series User’s Guide
2 Repeat step 1 for all axes using TTL encoders.
NOTE
Select pseudo-sinusoidal if TTL encoder outputs are degraded by capacitance in the
cabling/wiring.
3 Center the axes using the joystick, close the Encoder Setup program and proceed to QC5200 Encoder
Setup later in this chapter.
Analog encoders
Analog encoders must be specified as an encoder type and then calibrated. The calibration process requires
encoder movement that in most cases can only be created by operating the axis motors.
WARNING
Operating axis motors without PID loop control is potentially dangerous since the
motors will be operating in an open-loop mode. To minimize the potential hazards of
open-loop motor operation, tools are included in the encoder setup program for limit-
ing the maximum axis velocity and enabling limit switches for each axis.
NOTE
Joystick settings will only be applied while the encoder setup program is active. Per-
manent settings will be configured later in the QC5200 program.
Joystick setup and limiting maximum axis velocity
Motor operation will be controlled by the joystick. Configure the joystick and specify the maximum axis
velocities before applying power to the axis motors.
1 Click Joystick Setup to display the Joystick Setup screen shown on the next page.
2 Move the joystick through its entire range of motion for all axes, then click Apply Cal.
3 Specify the desired parameter for each joystick axis:
• Dead band % of inactivity range around joystick rest position
• Normal speed % of the maximum axis velocity
• Fine speed % of the maximum axis velocity
• Curvature % of exponential velocity control (refer to the graph on the next page)
9 Encoder Setup OE.indd 2 5/9/2005 10:02:34 AM