DMC Sigma2N - Page 108

Simga2N Traction Advanced Manual– V1.3 Page 108 (166) ©2021 DMC GmbH Herten Germany
The limit will run from 100 % (no cut back) to 0 % (full cut back). This is displayed also in the Status Menu at
“Drive Availability”.
When the Performance Table is actually limiting the current with respect to the drive speed, the Status menu
will show ‘PT’ limit indication.
Failure messages related to performance table
F7 S709 is the failure code related to performance table. It happens when performance table is being set not
in the correct order. When finish to set up the performance table recycle the key. If F7 S709 is there it means
that in the Performance table settings are not consistent.
Here the situations that gives F7 S709:
• if Performance Table Cutback 1 is lower than Performance Table Cutback 2 or Performance Table
Cutback 2 is lower than Performance Table Cutback 3.
• it is also related to the performance table Speed 1, 2,3. In fact for a proper setting to avoid F07 S709
Speed1 must be lower than Speed 2 and Speed 2 must be lower than Speed 3
To solve F7 S709 make sure that Performance Table Cutback 1 is greater than Performance Table Cutback 2
and Performance Table Cutback 2 is greater than Performance Table Cutback 3. Furthermore check that
Performance Table Speed 1 is lower than Performance Table Speed 2 and Performance Table Speed 2 is lower
than Performance Table Speed 3.
Interaction with Other limits
The controller may have other limits in effect (e.g. controller temperature limit or high voltage limit). The
module which is limiting the most, will apply the limit. The ‘drive availability’ will then show the limit of the
corresponding module.
Example
• Controller temperature limit 50 %
• Performance Table 80 %
• Applicable limit → 50 %
• Applicable module → Controller temperature (indicated by ‘CT’).
Interaction with Motor Module performance table
The motor module current reduction map in field weakening is reducing current as a function of the speed too.
See settings in motor set up menu field weakening. It means that the lower value for torque limiting between
the Performance table and motor module torque reduction map is applied.
Disabling Performance Table
Performance Table Drive Torque Reduction is totally excluded when the three percentage of reduction settings
are set to 100%.
To disable the torque cutback due to Performance Table; set the maximum torque at speed 1,2 ,3 to 100 %
(setting 5.5-4 to 5.5-6)