Rockwell Automation RELIANCE ELECTRIC SP500 - Page 81

F-18 RPM Setpoint Enable
The parameter
enables the setpoint to
be displayed in F-08
units.
Parameter Range: OFF = Setpoint is displayed in hertz.
ON = Setpoint is displayed in the units specified in F-08.
Default Setting: ON
Step Size: N/A
If F-18 = ON, pressing the ~@ and ‘~W keys will change the setpoint in units of 4
between minimum speed in F-08 units and maximum speed in F-08 units. Note that
this parameter only affects the setpoint, not the display.
Example
Assume a drive is currently running at 60 Hz = 1750 RPM, F-08 = 1750, and F-10 =
ON. When the “WW key is pressed, 1750 is displayed. When the “WW 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:
Reference (1747)
Input Reference = x F-04 (60 Hz) = 59.89 Hz
F-08 (1750)
F-19 Power-Up Start Enable
This parameter
determines whether
the motor starts
Parameter Range: OFF = Motor does not start at drive power up.
ON = Motor starts at drive power up.
automatically when the Default Setting: OFF
drive is powered up.
Step Size: N/A
ATTENTION: Setting F-19 = ON causes output power to be applied to
the motor automatically at drive power up. 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
When F-19 = ON, output power is applied to the motor at drive power up if the
following conditions are met:
* The drive power-up diagnostics must be passed (SELF will be displayed at power
up).
* No faults can be active.
* The terminal strip function loss input must be closed.
* The front-panel 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.
Programming Reference
8-13