Himoinsa M1 - Page 8

COMPONENTS AT THE REAR | PAGE 8
3.1.3 D+ TERMINAL (D+) (12)
The D+ terminal of the generator set’s battery charging alternator is connected to
this output to excite it and to begin charging the battery. Moreover, internally, the
control unit reads the battery charging voltage, which makes it possible both to
detect whether there has been a failure of the charging alternator and if the en-
gine has started.
3.1.4 ALARM OUTPUT (AL) (13)
The output associated with this terminal is activated when it detects any abnor-
mality in the functioning of the genset or there are values outside the set range.
3.1.5 BATTERY NEGATIVE (-BAT) (14)
The battery negative is connected to this terminal.
3.1.6 BATTERY POSITIVE (8-36V) (15)
The battery positive is connected to this terminal, whether it be 12V or 24V.
3.1.7 START-UP OUTPUT (ARR) (16)
When the engine is ordered internally to start up, this output is activated during
the set time, thereby supplying the starter motor with power. If it detects that the
engine is running, it stops activating this output.
3.1.8 CONFIGURABLE STOP (PC) (17)
This output can act as a stop by excitation or as a stop by de-excitation, depend-
ing on the engine type selected in the conguration (see section 3.2). In engines
with stop by excitation, when the generator set is ordered internally to stop, this
output is activated during the set time. If after this time it detects that the genset
has not stopped, it will continue ordering it to stop for successive periods of the
same duration, until it does stop. In engines with stop by de-excitation, the out-
put is deactivated to perform the stop.
USB PORT
This allows you to use a PC to perform the programming of certain parameters, in
addition to reading the internal hour meter (full and partial) and the alarm log.
CONFIGURATION MICRO SWITCHES
This allows you to congure the behaviour of the control unit manually, without
resorting to a PC, by selecting ON/OFF on the micro switches.
• Long preheating
• Frequency detection by PICK-UP
• Engine shutdown by FR (Fuel Reserve)
• Preheating enabling
• Cooling enabling
• Detection of start-up by D+
• Engine conguration (MSB bit)
• Engine conguration (LSB bit)
3.1 CONNECTION TERMINALS
One of the main features of the M1 control unit's wiring connections that is
worth mentioning is the fact that these are made using quick connect terminals.
A brief description of each one of them follows below:
3.1.1 PREHEATING OUTPUT (PR) (10)
The output associated with this terminal is activated before each start-up at-
tempt, during the pre-set time in line with the corresponding parameter (see the
table of parameters), in order to preheat the engine.
3.1.2 CONTACTOR ACTIVATION OUTPUT (CON) (11)
The output associated with this terminal is activated after the heating time
(20 secs), once the control unit has detected that the engine has started. It is
used so that the genset heats up in a vacuum before the contactor that will start
to charge it is activated.