WEG SSW7000, User Manual

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SSW7000 | 3-6
About the SSW7000
Control for Multiple SSW7000
Multiple SSW7000 may be connected in parallel, sharing the same power supply transformer.
Figure 3.7: Parallel connections between "n" SSW7000C
In order to automatically control the motor power factor correction (PFC) capacitor banks for multiple SSW7000,
a digital input (DI1, DI2, DI3, DI4, DI5 or DI6) must be set to “PFC Lock”, a digital output (DO1, DO2 or DO3) must
be set to “PFC Control”, and another digital output must be set to “PFC Lock”.
The electrical connections between the CC11 control boards of the Soft Starters must be done so that all the
digital inputs receive the signal from the digital output “PFC Lock”, as shown in the example of
figure 3.8 . In this
example, digital outputs DO1 and DO2 and digital input DI5 were used. The parameters configured in the example
are “15=PFC Lock” (DO1), “14=PFC Control” (DO2) and “16=PFC Lock” (DI5).
Figure 3.8 : Connection to PFC Controls for Multiple SSW7000 (example).