Beckhoff KL9540, Документация

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Product overview
KL9540, KL9540-0010 and KL9550 11 Version: 3.0.1
2.4 KL9550-0000 - introduction
Fig. 3: KL9550
Surge filter terminals for field supply and K-Bus supply
The KL9550-0000 surge filter terminal contains overvoltage filters for the field supply (power contacts) and
the K-Bus supply (Bus Coupler). The filters protect the components from line-bound surge voltages that can
occur due to high-energy disturbance variables such as switching surges at inductive consumers or lightning
strikes at the supply lines.
LED displays
LED Meaning
Power system (green) on K-Bus supply voltage present
Power field (green) on Field supply voltage present