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805 Function of control word bit 10
(Bit 10 function)
Selection:
No function (NO FUNCTION)
Bit 10 = 1 ⇒ CTW active
(BIT 10 = 1 ⇒ CTW ACTIVE)
Bit 10 = 0 ⇒ CTW active
(BIT 10 = 0 ⇒ CTW ACTIVE)
Bit 10 = 0 ⇒ time out
(BIT 10 = 0 ⇒ TIME OUT)
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
MG.90.A2.02 – VLT is a registered Danfoss trademark
FCM 300 PROFIBUS / VLT 2800 PROFIBUS
904 PPO type select for DP (PPO TYPE SELECT)
Selections:
PPO type 1 (PPO TYPE 1)
[0]
PPO type 2 (PPO TYPE 2)
PPO type 3 (PPO TYPE 3)
[1]
PPO type 4 (PPO TYPE 4)
PPO type 5 (PPO TYPE 5)
[2]
Function:
[3]
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.
[900]
[901]
[902]
[903]
[905]
31
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