Technical data

Appendix
CPU 317T: Technology Functions
A5E00251798-03
A-27
The TypeOfAxis.SmoothingFilter configuration data relates to the velocity
calculated in the IPO cycle. Here, you can select whether a PT1 filter is to be
applied to the data, or whether the data are to be generated based on the mean
value. Calculation of the mean value is based on the ratio between the cycles of
the position controller and the interpolator.
A.3.3 External encoder settings
A.3.3.1 Setting the standstill signal
The standstill signal for the external encoder can be set in the configuration data in
the Expert list of S7T Config:
• The "Velocity threshold standstill signal" is found in the configuration data
TypeOfAxis.StandStillSignal.maxVeloStandStill
• The "Signal output delay" signal is found in the configuration data
TypeOfAxis.StandStillSignal.delayTimeToActivate
A.3.3.2 External encoder - Synchronization with incremental encoders
The Technology CPU supports various synchronization modes for incremental
encoders operating as external encoder. You can set the reference position of the
external encoder in the S7T Config Experts list.
When synchronizing the encoder, the value of the homing position coordinate is
assigned to the current encoder position:
• When the zero mark is reached (default setting)
• When the BERO is reached (set in the Expert list)
The homing mode of the external encoder can be set in the
TypeOfAxis.Encoder_1.IncHomingEncoder.passiveHomingMode configuration
data of the Expert list.
Options:
• CAM_AND_ZM_PASSIVE(1)
Passive homing with BERO and the next zero mark
• ZM_PASSIVE(2)
Passive homing with the next zero mark
• CAM_PASSIVE(3)
Passive homing with BERO
• DEFAULT_PASSIVE(4)
Depending on the encoder type, the homing mode ZM_PASSIVE(2) (with zero
mark) or CAM_PASSIVE(3) (without zero mark) is used with or without zero
mark
Also set the expected approach direction for homing at the configuration parameter
TypeOfAxis.Encoder_1.IncHomingEncoder.passiveApproachDirection.