Behavior After Cold Start - ABB REF542plus Installation And Commissioning Manual

6.3.1
1VTA100004-en
REF 542plus switchbay protection and control unit
Manual Part 3: Installation and Commissioning

Behavior after cold start

To see the behavior after cold start the following condition is to be prepared:
The PC must be connected via the serial interface RS232 to the connector X72.
The Tera Term Pro software is running and configured with the setting file
MCTERM.INI.
The related power supply voltage must be connected to connector -X10.
The HMI Local Control Unit must not be connected to the Central Unit.
After the central unit starts up, the software Tera Term Pro shows messages as dis-
played in the following figure.
Figure 10: Correct start up sequence of Central Unit displayed by Tera Term Pro
software
The REF542plus is after the indication "system running" in operation again. If the HMI
Local Control Unit is connected, then on the LCD screen the single line diagram and
the menu will be displayed.
DMS,2001-10-04 REF542plus: Installation and Commissioning 42 / 80