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Limits and Warnings

DC Bus voltage warnings

If required the DC bus warning limits may be configured:

Commands Type Required Description
v_dc_limit_warning_h float32 Optional DC bus voltage high warning limit (V).
If the DC bus voltage rises above this value, the DC bus voltage warning bit in op_state signal will be asserted.
Default value: 74V
v_dc_limit_warning_l float32 Optional DC bus voltage low warning limit (V).
If the DC bus voltage falls below this value, the DC bus voltage warning bit in op_state signal will be asserted.
Default value: 20V

DC Bus voltage sense filter

If required the DC bus voltage sense 1st order low pass filter cutoff may be configured:

Commands Type Required Description
v_dc_filter_fc_hz float32 Optional DC bus voltage filter cutoff frequency (Hz).
Default value: 500Hz

Channel current limits and warnings

If required both channels may have their current sense limits and warning configured:

Commands Type Required Description
i_dc_X_limit_warning_h float32 Optional Channel X current high warning limit (A)
X is channel 0 or 1.
If the channel current rises above this value, the channel X current warning bit in op_state signal will be asserted.
Default value: 2.5V
i_dc_X_limit_warning_l float32 Optional Channel X current low warning limit (A)
X is channel 0 or 1.
If the channel current falls below this value, the channel X current warning bit in op_state signal will be asserted.
Default value: -1.0A (Effectively disabled)
i_dc_X_limit_error_h float32 Optional Channel X current sense high error limit (A).
X is channel 0 or 1.
If the channel current rises above this value, an E-stop will be generated and the device will shutdown all outputs.
Default value: 3.0A
i_dc_X_limit_error_l float32 Optional Channel X current sense low error limit (A).
X is channel 0 or 1.
If the channel current falls below this value, an E-stop will be generated and the device will shutdown all outputs.
Default value: -1.0A (Effectively disabled)

WARNING:

It is possible to set the channel current error limits to a value larger than what the channel can actually support. This can result in damage to the hardware. It is advised to NOT set the high error limit beyond the default value.

Channel current sense filter

If required both channels may have their current sense 1st order low pass filter cutoff configured:

Commands Type Required Description
i_dc_X_filter_fc_hz float32 Optional Channel current sense filter cutoff frequency (Hz).
X is channel 0 or 1.
Default value: 500Hz