Danfoss FC 300 Design Manual page 182

9. RS-485 Installation and Set-up
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 par. 8-90
04 = "0" and bit 00 - 03 = "1".
Bit 09, Jog 2 OFF/ON
Activation of the pre-programmed speed in par. 8-91
04 = "0" and bit 00 - 03 = "1".
Bit 10, Data invalid/valid
Is used to tell the adjustable frequency drive 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.
9
Bit 11, No function/Slow-down
Is used to reduce the speed reference value by the amount given in par. 3-12
down
the reference value is reduced.
Bit 12, No function/Catch up
Is used to increase the speed reference value by the amount given in par. 3-12
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, i.e., the speed reference value will be reduced.
182
NOTE
The selection in par. 8-53
responding function of the digital inputs.
value. When bit 11 = "0", no modification of the reference value occurs. When bit 11 = "1",
.
MG.33.B9.22 - VLT
Start select
determines how bit 06 is linked with the cor-
Bus Jog 1 speed
Bus Jog 2 speed
® is a registered Danfoss trademark.
FC 300 Design Guide
. Jog 1 is only possible if bit
. Jog 2 is only possible if bit
Catch up/slow-
Catch up/slow-