Danfoss FC 300 Design Manual page 176

9. RS-485 Installation and Set-up
Bit 04, Quick stop:
Bit 04 = '0': Makes the motor speed ramp down to stop (set in par. 3-81
Time
Bit 05, Hold 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
down
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.
9
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
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.
Bit 10, Data not valid/Data valid:
Tell the adjustable frequency drive whether to use or ignore the control word. Bit 10 = '0': The
control word is ignored. Bit 10 = '1': The control word is used. This function is relevant because
the telegram always contains the control word, regardless of the telegram type. Thus, you can
turn off the control word if you do not want to use it when updating or reading parameters.
Bit 11, Relay 01:
Bit 11 = "0": Relay not activated. Bit 11 = "1": Relay 01 activated provided that
11
is chosen in par. 5-40
176
.
.
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
stop Reset
, or
NOTE
Make a selection in par. 8-53
with the corresponding function on a digital input.
Function relay
MG.33.B9.22 - VLT
coasting stop
and .
Start Select
to define how Bit 06 Ramp stop/start gates
Jog Speed
.
® is a registered Danfoss trademark.
FC 300 Design Guide
Quick Stop Ramp
Speed up Slow
and
DC braking Coasting
,
.
Control word bit