INFO
Internal communication connections must
only
be used for internal communication.
13.3.3 Frame ground characteristics
More information
See
Hardware characteristics and configuration
,
General characteristics
,
Frame ground characteristics
.
13.3.4 Power supply characteristics
More information
See
Hardware characteristics and configuration
,
General characteristics
,
Power supply characteristics
.
13.3.5 PSM3.1 1 supply voltage low alarm
This default alarm is for power supply voltage protection.
The alarm is based on the power supply voltage measured by the PSM. The alarm is activated
when the power supply voltage is less than the set point for the delay time.
Set
point
Value
time
Delay
Configure the parameters under
Configure > Parameters > Hardware > PSM3.1 1 > Low voltage alarm
.
Table 13.9
Default parameters
Parameter
Range
PSM3.1 1 supply voltage low
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
13.3.6 PSM3.1 1 supply voltage high alarm
This default alarm is for power supply voltage protection.
The alarm is based on the power supply voltage measured by the PSM. The alarm is activated
when the power supply voltage exceeds the set point for the delay time.
Set
point
Value
time
Delay
Configure the parameters under
Configure > Parameters > Hardware > PSM3.1 1 > High voltage alarm
.
Table 13.10
Default parameters
Parameter
Range
PSM3.1 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
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