WEG SSW-08 Manual Del Usuario página 42

4) Set the initial voltage - P101 – so the motor starts smoothly as soon as it is enabled.
5) Set the acceleration time according to the application, and, that the motor is able to start the
load smoothly, but the required acceleration is not exceeded. If acceleration times are set too
long, this may result in vibration or harmful motor overheating;
6) To check the correct starting process, always use a manometer in the hydraulic installation.
Pressure increase should not result in sudden oscillations. Thus the pressure increase should
be as linear as possible;
7) Program the deceleration initial voltage (P103) only when no pressure drop is detected at the
deceleration begin. With this deceleration initial voltage you can improve the linear pressure
drop during the deceleration;
8) Set the deceleration time according to the application, and, ensuring that the pump stops
smoothly within the expected limits. The set of excessively long times may result in vibrations
or harmful motor overheating;
9) Generally, the current increases at the end of the deceleration ramp and in this case the
motor requires more torque to achieve a smooth water flow stop. When the motor has already
stopped, but is still enabled, the current will increase too much. To prevent this condition, set
P105 to a value that as soon it stop it is also disabled;
10)Set P610 and P611 to current and time levels that prevent the hydraulic pump from running
without a load.
Programming Information and Suggestions
U(V)
P101
Figure 5.6: Manometer showing pressure increase
U(V)
0
Figure 5.7: Manometer showing the pressure drop
Start 100%Un
0
P102
Enable Pump Control
100%Un
Stop
P103
P104
Disable
P105
t(s)
SSW-08 | 37
5