FC 300 Design Guide
How to Program
Bit 03, Coasting:
Bit 03 = ’0’: The adjustable frequency d rive im media tely "lets go" of the motor, (the output
transistors are "shut off") a nd it coasts to a standstill. Bit 03 = ’1’: The ad justa ble freq uency
drive starts the motor if the other starting conditions are m et.
NOTE
Make a selection in par. 8-50 Coasting Select to define how Bit 03 gates with
the corresponding function on a digital input.
B
it 04, Quick stop:
Bit 04 = ’0’: Makes the motor speed ramp down to stop (set in par. 3-81 Quick Stop Ramp Time).
B
it 05, Freeze output freque ncy:
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)programmedtospeedupandslowdown.
NOTE
If freeze output is active, the adjustable frequency drive can only be stopped b
y the following:
• Bit 03 C oasting stop
• Bit 02 DC braking
• Digital input (par. 5-10 to 5-15) programmed to DC braking, coasting sto p, or res
etandcoastingstop.
B
it 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 d rive 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.
B
it 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’ t o logic ’1’.
B
it 08, J og:
Bit 08 = ’1’: The output frequency is d eterm ined by par. 3-19 Jog Speed.
B
it 09, Selection of ramp 1/2:
Bit 0 9 = "0": Ramp 1 is active (par. 3-4 0 to 3-47). Bit 09 = "1": Ramp 2 (par. 3-50 to 3-57) is active.
*
default setting ()display text []value for use in communication via serial communication port
278
MG.33.B
6.22 - V LT is a registered Danfoss trademark
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