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ELEcTrIcAL cONNEcTION
5.1.3 Dc and Ac side switching
Figure 17: Connection for DC and AC switching
•
Drive controller operation possible, because the power box or the rectifier is sup
-
plied from the mains.
• For drive controller operation, switch the switch via digital output during ramp-up.
•
Enables the shortest switch-off times.
• Reduces the contact erosion.
5.1.4 Protective earth
The brake does not have its own PE connection. The low-resistance connection re-
quired for this must be made via the metallic attachment to the grounded motor housing.
If necessary, this must be checked by a measurement. In addition, the brake is usually
covered by the mounted fan cover and can therefore not be touched directly.
Содержание COMBISTOP 38
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