13.9.4 Power supply characteristics
If the EIM power supply fails or is not connected, the PSM will supply power to the EIM. If the PSM power supply fails, the EIM will
run on its independent power supply. However, the EIM will not supply power to the PSM.
INFO
Class societies require an independent power supply for the EIM. The EIM must therefore not be connected to the same
power supply source as the PSM.
More information
See Hardware characteristics and configuration, General characteristics, Power supply characteristics for more
information.
13.9.5 EIM3.1 1 supply voltage low or missing alarm
This default alarm is for auxiliary power supply voltage protection.
The alarm is based on the power supply voltage measured by the EIM. The alarm is activated
when the power supply voltage is less than the set point for the delay time.
Configure the parameters under Configure > Parameters > Hardware > EIM3.1 1 > Low voltage alarm.
Table 13.31
Default parameters
Parameter Range EIM3.1 1 supply voltage low or missing
Set point 8.0 to 32.0 V DC 18.0 V DC
Delay 0 s to 1 h 1.0 s
Enable Not enabled, Enabled Enabled
Alarm action Warning
13.9.6 EIM3.1 1 supply voltage high alarm
This default alarm is for auxiliary power supply voltage protection.
The alarm is based on the power supply voltage measured by the EIM. The alarm is activated
when the power supply voltage exceeds the set point for the delay time.
Configure the parameters under Configure > Parameters > Hardware > EIM3.1 1 > High voltage alarm.
Table 13.32
Default parameters
Parameter Range EIM3.1 1 supply voltage high
Set point 12.0 to 36.0 V DC 30.0 V DC
Delay 0 s to 1 h 1.0 s
DESIGNER'S HANDBOOK 4189340911K UK Page 447 of 521
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