Danfoss FC 300 Design Manual page 278

FC 300 Design Guide
Bit 03, Coasting:
Bit 03 = '0': The adjustable frequency drive immediately "lets go" of the motor, (the output
transistors are "shut off") and it coasts to a standstill. Bit 03 = '1': The adjustable frequency
drive starts the motor if the other starting conditions are met.
NOTE
Make a selection in par. 8-50 Coasting Select to define how Bit 03 gates with
the corresponding function on a digital input.
Bit 04, Quick stop:
Bit 04 = '0': Makes the motor speed ramp down to stop (set in par. 3-81 Quick Stop Ramp Time).
Bit 05, Freeze output frequency:
Bit 05 = '0': The present output frequency (in Hz) freezes. Change the frozen output frequency only by
means of the digital inputs (par. 5-10 to 5-15) programmed to speed up and slow down.
NOTE
If freeze output is active, the adjustable frequency drive can only be stopped by the following:
• Bit 03 Coasting stop
Bit 02 DC braking
•
Digital input (par. 5-10 to 5-15) programmed to DC braking, coasting stop, or reset and coasting stop.
•
Bit 06, Ramp stop/start:
Bit 06 = '0': Causes a stop and makes the motor speed ramp down to stop via the selected ramp down par.
Bit 06 = '1': Permits the adjustable frequency drive to start the motor, if the other starting conditions are met.
NOTE
Make a selection in par. 8-53 Start Select to define how bit 06 ramp stop/start gates
with the corresponding function on a digital input.
Bit 07, Reset: Bit 07 = '0': No reset. Bit 07 = '1': Resets a trip. Reset is activated on the
leading edge of the signal, i.e., when changing from logic '0' to logic '1'.
Bit 08, Jog:
Bit 08 = '1': The output frequency is determined by par. 3-19 Jog Speed.
Bit 09, Selection of ramp 1/2:
Bit 09 = "0": Ramp 1 is active (par. 3-40 to 3-47). Bit 09 = "1": Ramp 2 (par. 3-50 to 3-57) is active.
default setting ( ) display text
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How to Program
[ ] value for use in communication via serial communication port
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