Parameter
Range
EIM3.1 1 supply voltage high
Enable
Not enabled, Enabled
Enabled
Alarm action
Warning
13.9.7 Auxiliary power supply voltage as an analogue output
You can configure an analogue output with a function for the auxiliary power supply voltage. The controller then adjusts the
analogue output to reflect the operating value.
Assign the function to an analogue output under
Configure > Input/output
. Select a hardware module with an analogue output,
then select the output to configure.
Table 13.33
Auxiliary power supply voltage function
Function
IO
Units
Details
Hardware > Power supply > EIM3.1
1 > EIM3.1 1 supply voltage [V DC]
Analogue
output
0 to 60 V DC
The controller measures the auxiliary power supply voltage
over the EIM power supply terminals. The controller uses
the configured curve to convert this value to an analogue
output.
Application
An analogue output with the power supply voltage may be wired to a switchboard instrument. The operator can then see if the
auxiliary power supply fails.
13.9.8 Digital input characteristics
More information
See
Hardware characteristics and configuration
,
General characteristics
,
Digital input characteristics and
configuration
.
13.9.9 Magnetic pickup unit (MPU) input characteristics
The magnetic pickup unit (MPU) input can be
used for an MPU input. This input can be
useful during startup, when the generator
frequency is too low to be a reliable indication
of genset speed.
By default, the MPU input is used as a backup
running detection. However, the MPU input
can be used as the primary running detection.
Figure 13.2
MPU (inductive) voltage-time graph
Voltage
[V]
Time
[s]
0
INFO
You cannot use both the MPU and W input at the same time.
Parameters
The MPU input measures the number of pulses as metal teeth on the flywheel pass the detector. It is therefore important to
configure the number of teeth correctly, since engine speed (RPM) = pulses per minute / (number of teeth).
DESIGNER'S HANDBOOK 4189340911K UK
Page 448 of 521