0x2C55 - Trigger 1

This object allows configuring the Trigger used to start capturing data on Monitoring process. The module includes different Trigger event modes and a post delay that could be added between the Event detection and the Trigger generation. This is useful, for example, when the application needs to avoid initial data until the systems have reached a stable velocity.

The different Trigger event modes available are:

• Immediately: The trigger event will be detected just after the activation of the monitoring process. 

• On Motion Start: With this mode, the trigger event will be activated once a Target value has been accepted and the motion have started. 

  

  In cyclic and open loop modes, the target value is considered accepted just after entering operation enable state. Therefore, the data capture will start immediately.

  On the other hand, in profile modes the target value is considered accepted if it has been modified after the drive entering in operation enable state. Therefore, the data capture will start when the application sends its first target value. Pay special attention to profile position mode.

• On Positive Slope: This mode makes use of the Source Register and Positive Threshold registers. The module will check constantly the value of the Source Register and when it crosses the positive threshold using a positive slope, the trigger event will be generated. This triggering mode could be useful to synchronize the monitoring with rising edge of one of the system variables (i.e. Torque demand, Analog input, etc.)
• On Negative Slope: This mode makes use of the Source Register and Negative Threshold registers. The module will check constantly the value of the Source Register and when it crosses the negative threshold using a negative slope, the trigger event will be generated.
• On Exit Window: This mode makes use of the Source Register, Positive and Negative Threshold registers. The module will check constantly the value of the Source Register and when it exits the window defined by Negative and Positive threshold , the trigger event will be generated.
• On Digital Input Activation: One or more digital inputs could be used as a trigger Event by using this mode. The module checks the Value of the Digital Input register and if at least one of the bits indicated by the Digital Input Mask is set as active, the trigger event will be generated.

SubIndex description:

• 0x01 (Mode): It indicates the triggering mode.

  Value	Trigger method
  0	Immediately
  1	On Motion Start
  2	On Positive Slope
  3	On Negative Slope
  4	On Exit Window
  5	On Digital Input Activation

• 0x02 (Source Register): Select the source values used by Positive Slope, Negative Slope and Exit Window mode. It should be expressed as a combination of the subindex and index value (i.e. to select the subindex 0x02 of register 0x2C00, the 0x022C00 value should be written).
• 0x03 (Positive Threshold): Indicates the positive threshold used by Positive Slope and Exit Window mode. The units should matches the used by Source Register (i.e. If torque demand is assigned as Source Register, Positive Threshold will be expressed in thousands of rated torque).
• 0x04 (Negative Threshold): Indicates the negative threshold used by Negative Slope and Exit Window mode. The units should matches the used by Source Register (i.e. If torque demand is assigned as Source Register, Positive Threshold will be expressed in thousands of rated torque).
• 0x05 (Digital Input Mask): Bitwise mask used in Digital Input Activation Mode. Same format than 0x60FD - Digital input. For example a value of 0x00010000 will configure the Digital Input 1 as trigger source.
• 0x06 (Trigger Delay in samples): It indicates the delay between the event detection and trigger generation. It is expressed in multiples of 100 μs.