Danfoss Fc Control Profile - Danfoss FC 300 Manual

FC 300 CANopen
- H o w t o C o n t r o l t h e F C 3 0 0 -

Danfoss FC control profile

Control Word according to FC Profile,
Instances 21/22
(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 parameter 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]
28
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
0 1
1 0
1 1
MG.33.J1.02 VER. 050301 – VLT is a registered Danfoss trademark
N.B.:
In parameter 8-56 Preset reference select
a selection is made to define how Bit
00/01 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
parameters 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 parameter 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 parameter
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.