Danfoss VLT AutomationDrive FC 300 Design Manual page 244

FC 300 Design Guide
NB!:
Make a selection in par. 8-56 Preset
Reference Select to define how Bit
00/01 gates with the corresponding
function on the digital inputs.
Bit 02, DC brake:
Bit 02 = '0': DC braking and stop. Set braking current and duration in par. 2-01 DC Brake
Current and 2-02 DC Braking Time. Bit 02 = '1' leads to ramping.
Bit 03, Coasting:
Bit 03 = '0': The frequency converter immediately "lets go" of the motor, (the output
transistors are "shut off") and it coasts to a standstill. Bit 03 = '1': The frequency converter
starts the motor if the other starting conditions are met.
NB!:
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.
NB!:
If Freeze output is active, the frequency converter 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 frequency converter to start the motor, if the other starting conditions are met.
NB!:
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
signal's leading edge, 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 ( )
*
244
How to Programme
display text [ ] value for use in communication via serial communication port
MG.33.B4.02 - VLT is a registered Danfoss trademark
Programmed ref. Par.
value
1 3-10 [0]
2 3-10 [1]
3 3-10 [2]
4 3-10 [3]
Bit 01 Bit 00
0 0
0 1
1 0
1 1