FCM 300 PROFIBUS / VLT 2800 PROFIBUS
MG.90.A2.02 – VLT is a registered Danfoss trademark
31
Parameters
805 Function of control word bit 10
(Bit 10 function)
Selection:
No function (NO FUNCTION)
[0]
✭
Bit 10 = 1
⇒
CTW active
(BIT 10 = 1
⇒
CTW ACTIVE)
[1]
Bit 10 = 0
⇒
CTW active
(BIT 10 = 0
⇒
CTW ACTIVE)
[2]
Bit 10 = 0
⇒
time out
(BIT 10 = 0
⇒
TIME OUT)
[3]
Function:
According to the PROFIDRIVE profile, control word
and speed reference will be ignored if bit 10 of the
control word is
0
, but parameter 805 lets the user
change the function of bit 10. This is some times
necessary as some masters are setting all bits to
0
in
various fault situations. In these cases it makes sense
to change the function of bit 10 so that the FC motor/
VLT 2800 is commanded to stop (coast) when all bits
are
0
.
Description of selections:
-
Bit 10 = 1
⇒
CTW active:
Control word and speed
reference is ignored if bit 10 =
0
.
-
Bit 10 = 0
⇒
CTW active:
Control word and speed
reference is ignored if bit 10 =
1
. If all bits of the
control word are 0 the FC motor / VLT 2800
reaction will be coasting.
-
Bit 10 = 0
⇒
time out:
The time out function
selected in parameter 804 is activated when bit 10
is
0
.
-
No function: Bit 10 is ignored, i.e. control word
and speed reference is always valid.
✭
Factory setting
904 PPO type select for DP (PPO TYPE SELECT)
Selections:
✭
PPO type 1 (PPO TYPE 1)
[900]
PPO type 2 (PPO TYPE 2)
[901]
PPO type 3 (PPO TYPE 3)
[902]
PPO type 4 (PPO TYPE 4)
[903]
PPO type 5 (PPO TYPE 5)
[905]
Function:
The selection is valid for read and write, i.e. the same
PPO type must be used for read and write.
Description of selections:
-
PPO type 1: 12 byte PPO with parameter channel
for read and write of parameters and 4 bytes of
process data (control/status word and reference/
actual output frequency).
-
PPO type 2: 20 byte PPO as PPO type 1 with 8
additional bytes of selectable process data.
-
PPO type 3: 4 byte process data (control/status
word and reference/actual output frequency).
-
PPO type 4: 12 byte process data, as process
data part of PPO type 2.
-
PPO type 5: 28 byte as PPO type 2 with 8
additional bytes of selectable process data.
A detailed description of the PPO types can be found
on page 23.
Change of parameter 904 is executed when
parameter 800 is updated or at next power up.
