Keba ServoOne Series, User Manual

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47
Scaling and weighting
ServoOne User Manual SERCOS II and III
ID no.: 1108.26B.3-00 Date: 04/2020
Scaling and weighting
The following figure shows the various possibilities for the speed weighting.
Figure 8.2
min
min s
LSB=
10 -6
m/min
LSB
(S-0-0045)
(S-0-0046)
LSB =
10 -4
min
LSB
(S-0-0045)
(S-0-0046)
LSB =
10
-6
s
S-0-0044 bit 0 – 2
S-0-0044 bit 6
S-0-0044
Bit 3
S-0-0044
Bit 5
S-0-0044
Bit 4
–1
–1
rotary
translatory
none
Speed data weighting type (S-0-0044)
min or s
Load/Motor
Parameter
weighting
Load/Motor
Load/Motor
Metre
Metre
variable
variable
Preferred
weighting
Preferred
weighting
Parameter
weighting
min or s
Diagram of the speed weighting types
8.2.3 Speed polarity
The polarities (sign) of the speed data stated can be changed in parameter S-0-0043 to
suit the application. The polarities are not changed inside a control loop, but outside (at
the input and output). If the speed reference value difference is positive and the polarity
is not inverted, the rotation is clockwise looking at the motor shaft.
Bit 0 Speed reference value
0 Not inverted
1 Inverted
Bit 1
Additive speed reference value
0 Not inverted
1 Inverted
Bit 2
Speed actual speed 1
0 Not inverted
1 Inverted
Bit 3
Speed actual speed 2
0 Not inverted
1 Inverted
Bit 4-15 Reserved
Table 8.11 Setting of speed polarity via parameter S-0-0043