Danfoss VLT AutomationDrive FC 300 Design Manual page 259

RS-485 Installation and Set...
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
intended to use it in connection with updating or reading
parameters.
Bit 11, No function/Slow down
Reduces 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
Increases 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, i.e. the speed
reference value will be reduced.
Bits 13/14, Set-up selection
Selects between the 4 parameter set-ups according to
Table 10.25:
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
1 0
2 1
3 0
4 1
Table 10.22 Bits 13/14 Set-Up Options
Bit 15, No function/Reverse
Bit 15="0" causes no reversing.
Bit 15="1" causes reversing.
Note: In the factory setting reversing is set to digital in
8-54 Reversing Select.
NOTICE
Bit 15 causes reversing only when Ser. communi-
cation, Logic or or Logic and is selected.
10.13.5 Status Word According to
PROFIdrive Profile (STW)
The status word notifies a master (e.g. a PC) about the
status of a follower.
®
VLT AutomationDrive FC 300 Design Guide 90-1200 kW
Bit
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
Table 10.23 Bit Values for Status Word, PROFIdrive Profile
Explanation of the status bits
Bit 00, Control not ready/ready
When bit 00="0", bit 00, 01 or 02 of the Control word is "0"
(OFF 1, OFF 2 or OFF 3) - or the frequency converter is
switched off (trip).
When bit 00="1", the frequency converter control is ready,
but there is not necessarily power supply to the unit
present (in the event of external 24 V supply of the control
system).
Bit 01, VLT not ready/ready
Bit 14
Same significance as bit 00, however, there is a supply of
0
the power unit. The frequency converter is ready when it
0
receives the necessary start signals.
1
Bit 02, Coasting/Enable
1
When bit 02="0", bit 00, 01 or 02 of the Control word is "0"
(OFF 1, OFF 2 or OFF 3 or coasting) - or the frequency
converter is switched off (trip).
When bit 02="1", bit 00, 01 or 02 of the Control word is
"1"; the frequency converter has not tripped.
Bit 03, No error/Trip
When bit 03="0", no error condition of the frequency
converter exists.
When bit 03="1", the frequency converter has tripped and
requires a reset signal before it can start.
Bit 04, ON 2/OFF 2
When bit 01 of the Control word is "0", then bit 04="0".
When bit 01 of the Control word is "1", then bit 04="1".
Bit 05, ON 3/OFF 3
When bit 02 of the Control word is "0", then bit 05="0".
When bit 02 of the Control word is "1", then bit 05="1".
MG34S202 - Rev. 2013-08-19
Bit=0 Bit=1
Control not ready Control ready
Drive not ready Drive ready
Coasting Enable
No error Trip
OFF 2 ON 2
OFF 3 ON 3
Start possible Start not possible
No warning Warning
Speed=reference
Speed≠reference
Local operation Bus control
Out of frequency limit Frequency limit ok
No operation In operation
Drive OK Stopped, autostart
Voltage OK Voltage exceeded
Torque OK Torque exceeded
Timer OK Timer exceeded
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