Danfoss Fc Control Profile - Danfoss VLT AutomationDrive Manual

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VLT AutomationDrive EtherNet/IP

Danfoss FC Control Profile

Control Word according to FC Profile.
Instances 100, 101, 103/150, 151, 153
(Par. 8-10 = FC profile)
Master → slave
CTW
Bit
no.:
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Bit Bit value = 0
00 Reference value
01 Reference value
02 DC brake
03 Coasting
04 Quick stop
Hold output
05
frequency
06 Ramp stop
07 No function
08 No function
09 Ramp 1
10 Data invalid
11 No function
12 No function
13 Parameter set-up
14 Parameter set-up
15 No function
Explanation of the Control Bits
Bits 00/01
Bits 00 and 01 are used to choose between the
four reference values, which are pre-
programmed in par. 3-10 Preset reference
according to the following table:
Programmed Parameter
ref. value
1 3-10 [0]
2 3-10 [1]
3 3-10 [2]
4 3-10 [3]
N.B.:
In par. 8-56 Preset reference select a
selection is made to define how Bit 00/01
Speed ref.
Bit value = 1
External selection LSB
External selection MSB
Ramp
No coasting
Ramp
Use ramp
Start
Reset
Jog
Ramp 2
Data valid
Relay 01 active
Relay 04 active
Selection LSB
Selection MSB
Reverse
Bit Bit
01 00
0
0
1
1
th
MG.90.Jx.02 ver. 5 September 2007 – VLT is a registered Danfoss trademark
gates with the corresponding function on the
digital inputs.
Bit 02, DC brake:
Bit 02 = '0' leads to DC braking and stop.
Braking current and duration are set 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' causes the frequency converter to
immediately "let go" of the motor (the output
transistors are "shut off"), so that it coasts to a
standstill.
Bit 03 = '1' enables the frequency converter to
start the motor if the other starting conditions
have been fulfilled.
N.B.:
In par. 8-50 Coasting select a selection is
made to define how Bit 03 gates with the
corresponding function on a digital input.
Bit 04, Quick stop:
Bit 04 = '0' causes a stop, in which the motor
speed is ramped down to stop via par.3-81
Quick stop ramp time.
Bit 05, Hold output frequency:
Bit 05 = '0' causes the present output
frequency (in Hz) to freeze. The frozen output
frequency can then be changed only by means
of the digital inputs (par. 5-10 to 5-15)
programmed to Speed up and Speed down.
N.B.:
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, in which the motor
speed is ramped down to stop via the selected
0
ramp down parameter.
Bit 06 = '1' permits the frequency converter to
1
start the motor, if the other starting conditions
0
have been fulfilled.
1
N.B.:
In par. 8-53 Start select a selection is
made to define how Bit 06 Ramp
24