Bit 05, Freeze output frequency:
Bit 05 = '0' causes the present output frequency (in Hz) to freeze. The
frozen output frequency can now only be changed by means of the digital
inputs programmed to
Speed up
and
Speed down
.
NB!
If
Freeze output
is active, the frequency converter
cannot be stopped via Bit 06
Start
or via a digital input.
The frequency converter can only be stopped by the
following:
•
Bit 03 Coasting stop
•
Bit 02 DC braking
•
Digital input 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's speed is ramped down to
stop via the selected
ramp down
parameter.
Bit 06 = '1' causes the frequency converter to be able to start the motor,
if the other starting conditions have been fulfilled. Note: In parameter
505
Start
a selection is made to define how Bit 06 Ramp stop/start gates
with the corresponding function on a digital input.
Bit 07, Reset:
Bit 07 = '0' does not cause a reset.
Bit 07 = '1' causes the reset of 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' causes the output frequency to be determined by parameter
213
Jog frequency
.
Bit 09, Selection of ramp 1/2:
Bit 09 = “0” means that ramp 1 is active (parameters 207/208). Bit 09 =
“1” means that ramp 2 (parameters 209/210) is active.
Bit 10, Data not valid/Data valid:
Is used to tell the frequency converter whether the control word is to be
used or ignored. Bit 10 = '0' causes the control word to be ignored, Bit
10 = '1' causes the control word to be used. This function is relevant,
because the control word is always contained in the telegram, regardless
of which type of telegram is used, i.e. it is possible to turn off the control
word if you do not wish to use it in connection with updating or reading
parameters.
Bit 11, No function:
Bit 11 = relay output control.
Bit 12, No function:
Bit 12 = digital output control.
Bit 13/14, Selection of Setup:
Bits 13 and 14 are used to choose from the four menu Setups according
to the following table:
Setup
Bit 14
Bit 13
1
0
0
2
0
1
3
1
0
4
1
1
The function is only possible when
Multi-Setups
is selected in parameter
004
Active Setup
.
Note: I parameter 507
Selection of Setup
a selection is made to define
how Bit 13/14 gates with the corresponding function on the digital inputs.
Bit 15 Reversing:
Bit 15 = '0' causes no reversing.
Bit 15 = '1' causes reversing.
Note: In the factory setting reversing is set to
digital
in parameter 506
Reversing
. Bit 15 only causes reversing when either
Ser. communica-
tion
,
Logic or
or
Logic and
is selected.
4.7.7 Status Word According to FC Profile
The status word is used to inform the master (e.g. a PC) of the slave's
(frequency converter) mode. Slave
⇒
Master.
Bit
Bit = 0
Bit =1
00
Control ready
01
Drive ready
02
Coasting stop
03
No trip
Trip
04
Not used
05
Not used
06
Trip lock
07
No warning
Warning
08
Speed
≠
ref.
Speed = ref.
09
Local control
Ser. communi.
10
Outside
frequency range
Frequency limit
OK
11
Motor running
12
13
Voltage warn.
14
Current limit
15
Thermal
warn.
4 Programming
VLT
®
Decentral FCD 300 Design Guide
104
MG.90.S1.02 - VLT
®
is a registered Danfoss trademark
4
