Danfoss VLT Midi Drive FC 280 Programming Manual page 18

Control
Bit 02 = 0 quick stops and activates the output relay if the
output frequency is 0 Hz, and if [31] Relay 123 is selected
in parameter 5-40 Function Relay.
When bit 02 = 1, the frequency converter is in state 1,
Switching on inhibited.
Refer to Illustration 4.4.
Bit 03, coasting/no coasting
Bit 03 = 0 leads to a coast stop.
4 4
When bit 03 = 1, if the other start conditions are fulfilled,
the frequency converter can start.
NOTICE
The selection in parameter 8-50 Coasting Select
determines how bit 03 is linked with the corresponding
function of the digital inputs.
Bit 04, quick stop/ramp
Quick stop using the ramp time of parameter 3-81 Quick
Stop Ramp Time.
When bit 04 = 0, a quick stop occurs.
When bit 04 = 1, if the other start conditions are fulfilled,
the frequency converter can start.
NOTICE
The selection in parameter 8-51 Quick Stop Select
determines how bit 04 is linked with the corresponding
function of the digital inputs.
Bit 05, hold frequency output/use ramp
When bit 05 = 0, the present output frequency is
maintained, even if the reference value is modified.
When bit 05 = 1, the frequency converter can perform its
regulating function again according to the respective
reference value.
Bit 06, ramp stop/start
Normal ramp stop using the ramp times of the actual
ramp selected. In addition, if [31] Relay 123 is selected in
parameter 5-40 Function Relay, and if the output frequency
is 0 Hz, this bit activates output relay.
Bit 06 = 0 stops the frequency converter.
When bit 06 = 1, if the other start conditions are fulfilled,
the frequency converter can start.
NOTICE
The selection in parameter 8-53 Start Select determines
how bit 06 is linked with the corresponding function of
the digital inputs.
Bit 07, no function/reset
Reset after switching off. Acknowledges event in fault
buffer.
When bit 07 = 0, no reset occurs.
When there is a slope change of bit 07 to 1, a reset occurs
after switching off.
16
PROFIBUS DP
Bit 08, jog 1 OFF/ON
Activation of the pre-programmed speed in
parameter 8-90 Bus Jog 1 Speed. JOG 1 is only possible if bit
04 = 0 and bits 00–03 = 1.
Bit 09, jog 2 OFF/ON
Activation of the pre-programmed speed in
parameter 8-91 Bus Jog 2 Speed. JOG 2 is only possible if bit
04 = 0 and bits 00–03 = 1.
Bit 10, data invalid/valid
Tells the frequency converter whether to use or ignore the
control word.
Bit 10 = 0 ignores the control word, making it possible to
turn off the control word when updating/reading
parameters.
Bit 10 = 1 uses the control word. This function is relevant,
because the control word is always contained in the
telegram, regardless of which type of telegram is used.
Bit 11, no function/slow down
Used to reduce the speed reference value by the amount
given in parameter 3-12 Catch up/slow Down Value.
When bit 11 = 0, no modification of the reference value
occurs.
When bit 11 = 1, the reference value is reduced.
Bit 12, no function/catch up
Used to increase the speed reference value by the amount
given in parameter 3-12 Catch up/slow Down Value.
When bit 12 = 0, no modification of the reference value
occurs.
When bit 12 = 1, the reference value is increased.
If both slowing down and accelerating are activated (bits
11 and 12 = 1), slowing down has priority, and the speed
reference value is reduced.
Bits 13/14, set-up selection
Bits 13 and 14 are used to select between the 4 parameter
set-ups according to Table 4.6.
The function is only possible if [9] Multi Set-up has been
selected in parameter 0-10 Active Set-up. The selection in
parameter 8-55 Set-up Select determines how bits 13 and
14 are linked with the corresponding function of the
digital inputs. Changing set-up while running is only
possible if the set-ups have been linked in
parameter 0-12 This Set-up Linked to.
Table 4.6 Parameter Set-ups
Bit 15, no function/reverse
Bit 15 = 0 causes no reversing.
Bit 15 = 1 causes reversing.
Danfoss A/S © 05/2016 All rights reserved.
Set-up Bit 13
1 0
2 1
3 0
4 1
Bit 14
0
0
1
1
MG07F102