Himoinsa CEC7 - A AUTO-RESETTABLE WARNING; 7.1 LIST OF ALARMS

CEC7 CONTROL UNIT ALARMS | PAGE 22
7.1 LIST OF ALARMS
The list of active alarms and warnings can be grouped as follows (according to
the MANUFACTURER'S DEFAULT SETTINGS).
7.1.1. ATS PANEL ALARMS
Description
Type
Generates
Emergency stop
Alarm
Engine stops immediately without cooling with genset
contactor opening.
CR commutation failure
Alarm
Checked and if an error is detected the engine is
started.
CG commutation failure
Alarm
Checked and if an error is detected the engine is
stopped with cooling.
7.1.2. GENERATOR ELECTRICAL SIGNAL ALARMS
Description
Type
Generates
Genset voltage asymmetry
Alarm
Engine stops with cooling.
Genset overvoltage threshold
Alarm
Engine stops immediately without cooling.
Genset overfrequency
threshold
Alarm
Engine stops immediately without cooling.
Incorrect genset phases
sequence
Alarm
Engine stops with cooling.
Genset undervoltage threshold
Alarm
Engine stops with cooling.
Genset underfrequency
threshold
Alarm
Engine stops with cooling.
7.1.3. NETWORK ELECTRICAL SIGNAL ALARMS
Description
Type
Generates
Maximum NETWORK voltage
failure
Alarm
Checked and if an error is detected the engine is
started.
Minimum NETWORK voltage
failure
Alarm
Checked and if an error is detected the engine is
started.
Maximum NETWORK frequency
failure
Alarm
Checked and if an error is detected the engine is
started.
Minimum NETWORK frequency
failure
Alarm
Checked and if an error is detected the engine is
started.
NETWORK sequence failure
Alarm
Checked and if an error is detected the engine is
started.
NETWORK signal drop failure
Alarm
Checked and if an error is detected the engine is
started.
“A” AUTO-RESETTABLE WARNING
1. Upon detection of an alarm or warning, the control unit produces an acoustic
signal, the LED of the RESET button and the screen ashes and the alarm digital
output (AL) is activated. (7)
Fig.7
2. Pressing the RESET button eliminates the acoustic warning. The RESET LED
remains LIT and the type of warning is shown on the display (which stops
ashing). Warning “A”. (8)
Fig.8
3. This type of warning is auto reset automatically whenever normal operating
conditions are restored. It focuses on the alarms related to the fuel level as part
of the default programming and the alarm corresponding to the network
thresholds.
WARNING
FUEL RESERVE