Danfoss Fc Control Profile - Danfoss VLT MCA 121 EtherNet/IP Manual

MCA 121 EtherNet/IP

5.2 Danfoss FC Control Profile

5.2.1 Danfoss FC Control Profile
Control Word according to FC ProfileDrive Profile. Instances 100, 101,
103/150, 151, 153
→
Control Word Profile
Illustration 5.1: (par.8-10
Bit Bit value = 0
00 Reference value
01 Reference value
02 DC brake
03 Coasting
04 Quick stop
05 Hold output 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 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
the following table:
Programmed Parameter
ref. value
1 3-10 [0]
2 3-10 [1]
3 3-10 [2]
4 3-10 [3]
= FC profile)
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
Preset Reference
according to
Bit 01 Bit 00
0 0
0 1
1 0
1 1
®
MG.90.J2.02 - VLT is a registered Danfoss trademark
NB!
Preset Reference Select
In par. 8-56
is made to define how Bit 00/01 gates with the corre-
sponding 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
02 = '1' leads to ramping, par. 3-41
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 stand-
still.
Bit 03 = '1' enables the frequency converter to start the motor if the other
starting conditions have been fulfilled.
NB!
Coasting Select
In par. 8-50
fine 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
Quick Stop Ramp Time
stop via par. 3-81
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
Terminal 18 Digital Input
inputs (par. 5-10
Input Speed up
) programmed to and
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
Input
to par. 5-15
programmed to
Reset and coasting stop
5 How to Control
select a selection
and par. 2-02 DC Braking Time . Bit
Ramp 1 Ramp up Time
a selection is made to de-
.
Terminal 33 Digital
to par. 5-15
Speed down
.
Terminal 18 Digital
Terminal 33 Digital Input
)
DC braking , Coasting stop or
5
25