DKG-119J User Manual V-32
(09.07.2012)
- 24 -
The unit offers 2 sets of voltage and frequency protection limit values. The user is allowed to
switch between these 2 sets anytime.
This feature is especially usefull in dual voltage or frequency gensets for easy switching
between 2 operating conditions.
The switching to the second set of limit values can be done in 2 ways:
-by setting the program parameter
Secondary Volt/Freq
to 1
-with digital input signal
Thus the user has full flexibility for manual or external switching.
If switching is done with digital input signal, one of digital inputs has to be defined as “
2
nd
Volt-
Freq Select
” using “
INPUT FUNCTION SELECT
“ program group.
Below parameters are available for second voltage-frequency selection:
Mains Low Voltage Limit
Mains High Voltage Limit
Mains Low Frequency Limit
Mains High Frequency Limit
Genset Low Voltage Shutdown Limit
Genset Low Voltage Warning Limit
Genset High Voltage Warning Limit
Genset High Voltage Shutdown Limit
Genset Low Frequency Shutdown Limit
Genset Low Frequency Warning Limit
Genset High Frequency Warning Limit
Genset High Frequency Shutdown Limit
Genset Low RPM Shutdown Limit
Genset Low RPM Warning Limit
Genset High RPM Warning Limit
Genset High RPM Shutdown Limit
If the unit is used in a single phase electrical network, it is advised t set the
Single Phase
Enable
program parameter in
CONTROLLER CONFIGURATION
group to 1.
When
Single Phase Enable
is set to 1, then the unit will measure electrical parameters only
on phases
L1
of genset and mains.
Voltage and overcurrent checks will be performed on phases
L1
only.
Phases
L2
and
L3
parameters, as well as phase-to-phase voltages are removed from display
screens.
6.24 Single Phase Operation
6.23 Dual Voltage and Frequency
