Parameter Manual
Operating Instructions, 08/2013, 6FC5397-8EP40-0BA0
221
Machine data
2.4 Axis-specific machine data
Description: a.)
Scaling of the manipulated variable with analog drives:
The value of the speed setpoint in percent is to be entered in this MD, in
relation to the maximum speed setpoint at which the motor speed specified in
MD32260 $MA_RATED_VELO[n] is reached.
Related to:
MD32250 $MA_RATED_OUTVAL[n] only makes sense in combination with MD32260
$MA_RATED_VELO[n].
Example:
1. At a voltage of 5V, the drive reaches a speed of
1875 rpm ==> RATED_OUTVAL = 50%, RATED_VELO = 11250 [degrees/s]
2. At a voltage of 8V, the drive reaches a speed of
3000 rpm ==> RATED_OUTVAL = 80%, RATED_VELO = 18000 [degrees/s]
3. At a voltage of 1.5V, the drive reaches a speed of
562.5 rpm ==> RATED_OUTVAL = 15%, RATED_VELO = 3375 [degrees/s]
All three examples are possible for one and the same drive/converter. The
ratio of the two values is decisive; it is the same in all three examples.
MD32250 $MA_RATED_OUTVAL and MD32260 $MA_RATED_VELO describe physical char-
acteristics of converter and drive; they can therefore only be determined by
means of a measurement or commissioning instructions (converter, drive).
b.)
Scaling of the manipulated variable with digital PROFIdrive drives:
Default value "0" declares MD32250 $MA_RATED_OUTVAL and MD32260
$MA_RATED_VELO as invalid. Scaling of the manipulated variable is automati-
cally determined and adjusted from the drive parameters instead.
Otherwise (MD32250 $MA_RATED_OUTVAL unequal to zero), the scaling of the
manipulated variable is not determined from the drive (for example non-Sie-
mens PROFIdrive drives), but set with RATED_VELO and RATED_OUTVAL, even in
the case of these, irrespective of the scaling active on the drive side. In
this case, the following applies:
Scaling of the manipulated variable on the drive = RATED_VELO / RATED_OUTVAL
Further scalings from drive parameters, such as torque scaling, are not
active if MD32250 $MA_RATED_OUTVAL is not equal to zero, the values based on
it remain zero.
In the case of simultaneous operation of analog and PROFIdrive drives, the
settings for the analog axes must be adjusted as described in a.).
32250 RATED_OUTVAL A01, A11 A3,D1,G2
% Rated output voltage DOUBLE NEW CONF
CTEQ
808d-me42 1 100.0 0.0 100 1/1
808d-me62 1 0.0 0.0 200 1/1
808d-te42 1 100.0 0.0 100 1/1
808d-te62 1 0.0 0.0 200 1/1
Siemens Controls
To Next Page
Loading...
Need help?
General
