Danfoss VLT 2800 Design Manual page 113

Programming
NOTICE
In parameter 502 Coasting stop, 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's speed is
ramped down to stop via parameter 212 Quick stop ramp-
down time.
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 with the digital inputs programmed to Speed up
and Speed down.
NOTICE
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.
NOTICE
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
Ramp-up time 1/208 Ramp-down time 1).
Bit 09="1" means that ramp 2 (parameters 209 Ramp-up
time 2/210 Ramp-down time 2) is active.
MG27E402
Design Guide
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 it is not used for updating or reading parameters.
Bit 11, Relay 01
Bit 11="0" Relay not activated.
Bit 11="1" Relay 01 activated, provided [26] Control word
bit has been selected in parameter 323 Relay output 1-3.
Bit 12, Digital output, terminal 46
Bit 12="0" Digital output has not been activated.
Bit 12="1" Digital output has been activated, provided [26]
Control word bit has been selected in parameter 341
Digitial/Pulse output terminal 46.
Bit 13/14, Selection of set-up
Bits 13 and 14 are used to selected from the 4 menu set-
ups according to Table 4.13.
Setup
1
2
3
4
Table 4.13 Bit 13/14
The function is only possible when [5] Multi-Setups is
selected in parameter 004 Active Setup.
NOTICE
In 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.
NOTICE
In the factory setting, reversing is set to [0] digital in
parameter 506 Reversing. Bit 15 only causes reversing
when either [1] Serial communication, [3] Logic or, or [2]
Logic and is selected.
Danfoss A/S © Rev. May/2014 All rights reserved.
Bit 14 Bit 13
0 0
0 1
1 0
1 1
4 4
111