Parameter channel (pcv mechanism) – Lenze 931W User Manual
Page 49
Parameter channel (PCV mechanism)
Job and response processing
Examples of PCV mechanism
7
49
K-HB 13.0001-EN
2.1
Example 4: Reversal
To change the direction of rotation, the subindex 6 of the data type driving record 1 to 100
(PNU 1 to 100) is addressed. The table lists as data type the subindex 6 bit […]. The number
which is listed in parenthesis, corresponds to the bit which must be set to change the
status.The subindex 6 serves to change, e.g. the acceleration ramp form, brake ramp,
controller type, driving direction and direction of rotation. In our example, bit 4 is
addressed to cause a reversal of rotation direction.
Parameter identification:
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Binary value
0
1
1
1
0
0
0
0
0
0
0
0
0
0
0
1
Hexadecimal value
7
0
0
1
Change parameter
value
PNU
Subindex
Bit
7
6
5
4
3
2
1
0
Binary
value
0
0
0
0
0
1
1
0
The subindex indicates the parameter to be addressed.
Parameter value
Byte
7
6
5
4
3
2
1
0
Value
0000
0000
0000
0000
0000
0000
0001
0000
In this example, the parameter value (Bit 4 =1) reverses the direction of rotation.
As response identification a 4 is output as job identification, and the PNU, in this case 001
is output for driving record 1, see Tab. 20. This means: Transmit parameter value (array
word).
Response identification :
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Binary value
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
Hexadecimal value
4
0
0
1
Transmit describing
element
PNU
Subindex
Bit
7
6
5
4
3
2
1
0
Binary
value
0
0
0
0
0
1
1
0
Parameter value like parameter requirement.
Byte
7
6
5
4
3
2
1
0
Value
0000
0000
0000
0000
0000
0000
0001
0000
To convert the reversal of rotation direction into an action, an edge at bit 6 of the control
word is changed.