Parameter Range
Default Notes
between the controllers. If
P weight
is too high, the frequency regulation will be too slow, for
example, when a new heavy consumer connects.
Relay governor output power load sharing parameters
The following table contains the parameters for a relay governor output that are used during power load sharing.
The power load sharing parameters define relay regulation when the controller regulates the governor to control the genset active
power output for load sharing.
Parameter
Range
Default Notes
Kp
0 to 100
10
This is the gain for the regulator.
f deadband 0.2 to 10 % 1 %
The frequency deadband for the regulator, as a percentage of nominal frequency.
The default deadband is ± 1 %. That is, for a genset with a nominal frequency of 50 Hz, the
deadband is 1 Hz. When the controller frequency set point is 50 Hz, the regulator will not
control the frequency if it is between 49.5 and 50.5 Hz.
P weight
0 to 100 % 10 %
If P weight is 100 %, the controller ignores the frequency set point to achieve the power set
point. If P weight is 0 %, the controller ignores the power set point, to achieve the frequency
set point.
DEIF recommends that you start with the default value, and then, if necessary, adjust this
parameter. If
P weight
is too low, the load sharing will not be effective and the load will float
between the controllers. If
P weight
is too high, the frequency regulation will be too slow, for
example, when a new heavy consumer connects.
P deadband 0.2 to 10 % 2 %
The power deadband for the regulator, as a percentage of nominal power.
The default deadband is ± 2 %. That is, for a genset with a nominal power of 100 kW, the
deadband is 4 kW. When the controller power set point is 50 kW, the regulator will not control
the power if it is between 48 and 52 kW.
6.2.7 Governor stand-alone mode
Stand-alone mode allows an operator to send regulation signals manually to regulate the governor using only a GAM3.2. This mode
can be used if the rest of the controller is disabled, or if the main controller power supply fails. For stand-alone mode, the controller
must have a correctly configured GAM3.2 module.
If you want to use stand-alone mode during emergencies, DEIF recommends a reliable back-up power supply for GAM3.2.
INFO
Stand-alone mode is
not
related to a stand-alone genset.
DANGER!
The manual regulation inputs in stand-alone mode override any other regulation. The GAM3.2 does not stop the user from
sending regulation signals that might damage the genset.
The operator can create a dangerous situation during stand-alone mode. The rest of the controller could be disabled during
stand-alone mode, and therefore be unable to provide protection. The system design and operator training must take these
dangers into account.
Inputs and outputs
Configure the inputs and outputs under
Configure > Input/output
. Select the
GAM3.2
, then select the input or output to configure.
DESIGNER'S HANDBOOK 4189340911K UK
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