169 flying start en, 170 flying startgain – Rockwell Automation Liqui-Flo DBT Reach Drive User Manual

Page 71

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Parameter Descriptions

3-45

Enables/disables a feature to issue a Start or Run command and automatically
resume running at commanded speed after drive input power is restored.

When enabled, Start At PowerUp requires a digital input configured and closed for
Run or Start and a valid start contact.

Enables/disables the function which reconnects to a spinning motor at actual RPM
when a start command is issued.

Flying Start En is not required in FVC Vector mode when using an encoder.

Adjusts the responsiveness of the flying start function. Increasing the value in this
parameter increases the responsiveness of the flying start function.

Important: Lower gain may be required for permanent magnet motors.

!

ATTENTION: Be aware of the following:

Setting parameter 168 to 1 (Enabled) immediately applies output
power to the motor when all start conditions are met.

If the drive is running from the terminal block, Start At PowerUp is
enabled, and a fault occurs, the drive coasts to rest and generates a
fault. In this case, resetting and clearing the fault immediately restarts
the drive without any change to the start or stop input states.

When this function is enabled, the user must ensure that automatic start
up of the driven equipment will not cause injury to operating personnel
or damage to the driven equipment. In addition, the user is responsible
for providing suitable audible or visual alarms or other devices to
indicate that this function is enabled and the drive may start at any
moment. Failure to observe this precaution could result in severe bodily
injury or loss of life.

169

Flying Start En

Range:

0 = Disabled
1 = Enabled

Default:

0 = Disabled

Access:

2

Path: Dynamic Control>Restart Modes

See also:

170

170

Flying StartGain

Range:

20 to 32767 [1]

Default:

4000

Access:

2

Path: Dynamic Control>Restart Modes

See also:

169

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