Rockwell Automation 1302 575v AC Drive - Canada Only User Manual

Page 72

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8–14

Programming

Publication 1302-5.0 — January, 1998

FĆ18 RPM Setpoint Enable

The parameter enables the

setpoint to be displayed in FĆ08

units.

Parameter Range:

Default Setting:

Step Size:

OFF = Setpoint is displayed in hertz.

ON = Setpoint is displayed in the units

specified in FĆ08.

ON

N/A

If FĆ18 = ON, pressing the

and

keys will change the setpoint in units of 1 between minimum

speed in FĆ08 units and maximum speed in FĆ08 units. Note that this parameter only affects the setpoint, not

the display.

Example

Assume a Drive is currently running at 60 Hz = 1750 RPM, FĆ08 = 1750, and FĆ10 = ON. When the

key is pressed, 1750 is displayed. When the

key is pressed three more times, the display will change

from 1750 to 1749 to 1748 to 1747. The reference is then rescaled based on this input:

Input reference +

Reference (1747)

FĆ08Ă(1750)

FĆ04Ă(60Hz) + 59.89 Hz

FĆ19 PowerĆUp Start Enable

This parameter determines

whether the motor starts

automatically when the Drive is

powered up.

Parameter Range:

Default Setting:

Step Size:

OFF = Motor does not start at Drive

power up.

ON = Motor starts at Drive power up.

OFF

N/A

!

ATTENTION: Setting FĆ19 = ON causes output power to be applied to the motor automatically

at Drive power up. When this function is enabled, you 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, you are 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.

This parameter may only be used as outlined in NFPA79, paragraph 6-14 (exceptions 1-3) for

specialized applications. Equipment damage and/or personal injury may result if this

parameter is used in an inappropriate application.

When FĆ19 = ON, output power is applied to the motor at drive power up if the following conditions are met:

D The drive powerĆup diagnostics must be passed (SELF will be displayed at power up).
D No faults can be active.
D The terminal strip function loss input must be closed.

D The frontĆpanel keypad

STOP

RESET

key must not be pressed.

If the Drive is under local control, it will effectively simulate a start signal to start the Drive.

If the Drive is under remote control, the Drive will start only if the terminal strip START input is asserted.

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