D-500 User Manual Rev_06 Firmware V-5.8
K35D05-EN - 136 -
The Delayed Mains Simulation feature is used in battery backed up telecom systems where batteries are
able to supply the load during a certain period. The genset is requested to run only when battery voltage
drops below the critical level. Once the engine runs, the rectifier system starts charging the batteries and
the battery voltage goes up immediately. Thus the engine should continue to run a programmed period
for effective charging. The critical battery voltage level will be detected by an external unit which provides
the digital
Disable Auto Start
signal for the genset control unit.
The unit offers an optional
Disable Auto Start
signal input. Any digital input may be assigned as
Simulate Mains
using
Input Function Select
program parameters
.
It is also necessary to set the
ACTION
program parameter of the related input to
3
in order to prevent any
alarms generated from this input.
The
Disable Auto Start
signal may be a NO or NC contact, switching to either battery positive or battery
negative. These selections are made using the programming menu.
If the
Delayed Simulate Mains
program parameter is set to 1 and the input signal is active when the
genset is not feeding the load, the mains phases are not monitored and supposed to be inside limits. This
will prevent the genset from starting when the simulate mains signal is present (batteries charged). The
genset will start when mains voltages are out of limits and the simulate mains signal not present.
If the genset is running when the signal is applied, then MAINS SIMULATION will be prevented during
Flashing Relay On Timer
program parameter. After this, usual Mains Waiting and Cooldown cycles will
be performed before engine stop. When the SIMULATE MAINS signal is present, the front panels mimic
diagram’s mains LEDs will reflect the mains voltages as present.
When the signal is passive, the unit will revert to normal operation and monitor the mains voltage status.
The REMOTE START operation overrides Disable
Auto Start
operation. When both “Remote Start
Operation” and “Delayed Simulate Mains” are
enabled then REMOTE START operation mode is
performed.
32.6. BATTERY CHARGING OPERATION, DELAYED
SIMULATE MAINS
Содержание D-500
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Страница 44: ...D 500 User Manual Rev_06 Firmware V 5 8 K35D05 EN 44 6 3 ATS FUNCTIONALITY ...
Страница 45: ...D 500 User Manual Rev_06 Firmware V 5 8 K35D05 EN 45 6 4 REMOTE START FUNCTIONALITY ...
Страница 46: ...D 500 User Manual Rev_06 Firmware V 5 8 K35D05 EN 46 6 5 ENGINE CONTROL FUNCTIONALITY ...
Страница 47: ...D 500 User Manual Rev_06 Firmware V 5 8 K35D05 EN 47 6 6 REMOTE DISPLAY PANEL FUNCTIONALITY ...
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