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Brakeoverloadaccumulator, Brakeresistoralarm, Busvoltage – Emerson P/N 400361-00 User Manual

Page 100: Captureenable, Captureactivate, Capturereset, Capturetriggered, Capture.name, Capture.number, Capture.#.capturedtime

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86 www.emersonct.com SM-EZMotion Module User Guide

the corresponding bit location of BitRegister.#.Value (by
setting the bit location to 1) or to clear the current data in
BitRegister.#.Value (by setting the bit location to 0).

Unidrive SP Braking Resistor Overload Accumulator

BrakeOverloadAccumulator

This parameter gives an indication of braking resistor
temperature based on a simple thermal model. The
formula for the thermal model is a function of parameters
10.30 and 10.31 (set in the initialization file). A value of
zero indicates that the resistor is close to ambient, and a
value of 100% is the maximum temperature (trip level). An
OVLd warning is given if this parameter is above 75% and
the braking IGBT is active. This parameter can be found on
the Online tabs of the Status and Current views.

Unidrive SP Braking Resistor Alarm

BrakeResistorAlarm

This parameter is set when the braking IGBT is active and
the braking overload accumulator is greater than 75%. This
parameter when activated is automatically kept active for
0.5 seconds so that it can be displayed on the keypad
display. This parameter can be found on the Online tabs of
the Status and Current views.

Unidrive SP Bus Voltage

BusVoltage

This read-only parameter displays the instantaneous
voltage value of the DC bus in the Unidrive SP. This
parameter is found on the Online tab on the Status view
and is read directly from parameter 5.05 in the Unidrive SP
database.

Capture Enable

CaptureEnable

The CaptureEnable is used to enable or “arm” the capture
component. If the CaptureEnable is not active, then the
CaptureActivate has no effect, and the CaptureTriggered
remains inactive. Once the CaptureEnable is activated, the
Capture component is ready and waiting for a
CaptureActivate signal to capture data. CaptureEnable is a
read-only destination on the Assignments view, and is
accessible through a user program.

Capture Activate

CaptureActivate

If the Capture component is enabled and has been reset
(CaptureTriggered is inactive), then the rising edge of
CaptureActivate will capture the four data parameters and
cause CaptureTriggered to be activated. If the Capture
component is not enabled, or has not been reset, the
CaptureActivate will be ignored.

Capture Reset

CaptureReset

The CaptureReset is used to reset or re-arm the capture
component after it has been activated. If the capture has
been activated, the CaptureTriggered destination will be
active. The capture component cannot capture data again
until it has been reset. The capture component will
automatically reset itself if the CaptureEnable signal is
removed.

Capture Triggered

CaptureTriggered

The CaptureTriggered signal is read-only and indicates
that the Capture component was activated and that data
has been captured. CaptureTriggered will activate on the
leading edge of CaptureActivate if the Capture component
is enabled and reset. Capture Triggered will remain active
until CaptureReset is activated.

Name

Capture.Name

You can assign a descriptive name to each capture,
making the setup easier to follow. The length of the text
string is limited by the column width with a maximum of 12
characters. Simply double click on the Name field of any
capture’s line to assign a name to it.

Number

Capture.Number

This parameter defines the size of the Capture list.

Captured Time

Capture.#.CapturedTime

The time, in microseconds, from a free-running 32-bit
binary counter at which CaptureTriggered activated.

Captured Position Command

Capture.#.CapturedPositionCommand

The command position, in user units, at the time when
CaptureTriggered activated.

Captured Position Feedback

Capture.#.CapturedPositionFeedback

The feedback position, in user units, at the time when
CaptureTriggered activated.

Captured Master Position

Capture.#.CapturedMasterPostion

The master axis feedback position, in master axis distance