Bosch 4306 Service Manual download pdf (Page 8)

• DOK-POWER*-KDV*2.3****-ANW1-EN-E1,44 • 06.97

2. Applications

2.1. Functional power features of the KDV 2.3

• Simplified fusing

Only overload protection for the power supply line is needed. Commercial

power protection switches or slow-blow fuses can be used.

• Ground fault monitoring of the attached drives

In the event of a fault, power is immediately switched off by opening the Bb1

contact and signalled via the optical display on the LED.

• Drive system response to a power failure

Can be programmed by inserting the external NC bridge circuit:

– Without the NC bridge circuit, the drives will brake with maximum torque.

– With the NC bridge circuit, there is a signal to the NC control unit via a

potential-free contact. It makes it possible for the NC control unit to brake

the drive to a standstill, protecting expensive tools and workpieces

against damage.

• Limiting the charging current of the DC bus capacitors

The charging current need not be taken into consideration when selecting

the switching device for the power supply. The lifespan of the switching

devices is increased.

• High control voltage loads

Six drive modules can generally be mounted to one supply module.

• Ease of servicing

The signal lines are connected via plug-in terminal screws.

• Power ratings by means of additional components

Input power can be configured to meet the demands of the relevant

application.

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Bosch 4306 Service Manual Page 8