ABB 89NG03 GJR4503500R0001 Power supply Module For Generation Of Station Bus Voltages

Product Details:

Description:

The power supply module 89NG03 is used for switching and generating the voltages required in a station bus subrack of a 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 multi-purpose processing station. The positive voltage USE supplied via the connector X1 is switched by the power supply module as a process voltage US to the station bus backplane via a switching stage. This voltage is fused in the module. The fuse is located on the front of the module.

The voltages UB and UD are regulated as a function of UD. The voltage UB is variable, i.e. the output voltage is changed within the permissible limits depending on UD and the connected load. The module has an internal and external tap for the actual voltage value. If the sensor line is open the voltage UD is control.led to a fixed value on the module output terminals irrespective of the connected load. If the sensor line is connected (F + , F-), the output voltage on the connection point of the sensor line is controlled to a constant value. With PROCONTROL,the sensor line is connected in the middle of the station bus backplane. in this way, voltage drops in the supply line caused by changes in the load current (e.g.by plugging in an additional module) are stabilized.

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 voltages UB+ = +24 VDC and UD+ = +5 VDC (with reference conductor ZD) on the bus side and required by the modules are generated via DC/DC converters and are potential isolated.

The module must not be plugged or withdrawn when live, in order to prevent destruction.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 switch off takes place. The outputs US and UB are monitored for under voltage and the output UD is monitored for over voltage and under voltage.If the monitoring facility responds, there is an annunciation. US and UB are tapped from the module output voltage, whereas UD is tapped from the sensor line F.

In addition to the monitoring of voltages with purely an annunciation function, the module also has an over voltage and under voltage monitoring facility with switch off function.

Datasheet Link:

ABB 89NG03 GJR4503500R0001.pdf