Danfoss VLT PROFIBUS DP MCA 101, Programming Manual

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Refer to Illustration 4.4 .
Bit 03, Coasting/No coasting
Coasting stop Bit 03="0" leads to a stop.
When bit 03="1", the frequency converter can start if the
other start conditions are fulfilled.
NOTICE
The selection in 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 3-81 Quick Stop Ramp
Time .
When bit 04="0", a quick stop occurs.
When bit 04="1", the frequency converter can start if the
other start conditions are fulfilled.
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 current output frequency is being
maintained even if the reference value is modified.
When bit 05="1", the frequency converter can perform its
regulating function again; operation occurs according to
the respective reference value.
Bit 06, Ramp stop/Start
Normal ramp stop using the ramp times of the actual
ramp as selected. In addition, activation of the output relay
01 or 04 if the output frequency is 0 Hz if Relay 123 has
been selected in
5-40 Function Relay . Bit 06="0" leads to a
stop. When bit 06="1", the frequency converter can start if
the other start conditions are fulfilled.
NOTICE
The selection in 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.
Bit 08, Jog 1 OFF/ON
Activation of the pre-programmed speed in 8-90 Bus Jog 1
Speed . JOG 1 is only possible if bit 04="0" and bit
00-03="1".
Bit 09, Jog 2 OFF/ON
Activation of the pre-programmed speed in 8-91 Bus Jog 2
Speed . JOG 2 is only possible if bit 04="0" and bit
00-03="1".
Bit 10, Data invalid/valid
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, giving the opportunity to turn
off the control word when updating/reading parameters.
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.
Bit 11, No function/Slow down
Used to reduce the speed reference value by the amount
given in
3-12 Catch up/slow Down Value 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
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 (bit 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 Multi Set-up has been
selected in 0-10 Active Set-up . The selection in 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
0-12 This Set-up Linked to .
Set-up Bit 13 Bit 14
1 0 0
2 1 0
3 0 1
4 1 1
Table 4.6 Parameter Set-ups
Bit 15, No function/Reverse
Bit 15=“0” causes no reversing.
Bit 15=“1” causes reversing.
NOTICE
In the factory setting, reversing is set to digital in
parameter 8-54 Reversing Select .
NOTICE
Bit 15 causes reversing only when Ser. communication,
Logic or or Logic and is selected.
Control Programming Guide
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