89NG03 ABB GJR4503500R0001 Power Supply Module

Description:

Application:
The power supply module 89 NG03 is used for switching and generationg the voltages required in a station bus subrack ofa PROCONTROL multi-purpose processing station. Since each module subrack has its own voltage supply, the power supply devices are used altogether 4 times for the multipurpose processing station.
The printed circuit board 89 lL01,although a self-contained module, is a permanent accessory to the power supply module 89 NG03.It is provided with a row of connectors for connecting cables and for forming a support point(see moduledescription GKWE 705 445).
Features:
The power supply module is fed via a plug on the front panel. The process voltage US = +24 VDC is switched depending on the internal voltage UD. The process voltage UV= -24VDC,the reference conductor Z,the annunciation and flashing voltage are only connected through the module.
The voitages UB+ = +24 VDC and UD+ = +5 VDC (withreference conductor ZD) on the bus side and required by themodules are generated via DC/DC converters and are potential-isolated.
Caution:

The module must not be plugged or withdrawn when live, in order to prevent destruction.
The voltages US, UB + and UD supplied to the station bus are monitored by the module. In the event of a disturbance, an annunciation and/or switchoff takes place.

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