Lenze EVS93 Series, System Manual

Page: 58 / 386

Function library
Function blocks
3.2.3 Function block CDATA
3−30
l
EDSVS9332K−EXT EN 4.0
3.2.3.7 Selection of one profile
1. CDATA−CYCLE = LOW: deactivation of the automatic profile switching.
2. CDATA−SEL: Select the desired profile number (see Fig. 3−10).
3.2.3.8 Selection of several profiles
Permissible value range of CDATA−SEL:
l 0 to the number of profiles selected in the GDC dialog ’Basic cam data’ or ’Cam editor’.
)
Note!
l
Values at CDATA−SEL < 0 are interpreted as 0
l
Values at CDATA−SEL maximum number of profiles are limited to the values
displayed in C1300/0 minus 1. Example:
– You have reserved four profiles. Thus, the profiles 0 ... 3 can be selected. If you
enter, for example, the value 5 at the input CDATA−SEL, profile 3 is selected.
The value at CDATA−SEL is accepted
l
during operation at zero crossing of the X position.
– It is thus for instance possible to change to a new profile program via PLC without the
usually necessary times required to change the system.
l
immediately if CDATA−RESET = HIGH.
Profile processing when the order remains the same
1. CDATA−CYCLE = HIGH: activation of the automatic profile switching
2. Code C1311: Determine initial profile
3. Code C1312: Determine cycle range
– The cycle range is limited by the profile number entered in GDC.
(
Stop!
l After, for instance, a fault, CDATA−RESET = HIGH activates the profile selected
under C1311 at CDATA−SEL
immediately without waiting for zero crossing!
l
In some cases torque peaks may occur and damage the machine.
Example Profiles 2, 3 and 4 are to be processed cyclically:
C1311 = 2 (first profile)
C1312 = 2 (range: 2 further profiles)
Result With CW rotation, the profiles are processed in ascending order (2 3 4 2). When the last profile is reached, the
process starts again with the first profile.
With CCW rotation, the profiles are selected in descending order. When the first profile is reached, the process starts again
with the profile:
First p range. In our example: 2 4 3 2 4 etc.
– Profiles 0 and 1 cannot be reached with this setting!