Sices HS 315, Техническое руководство

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28 Technical Handbook
NOTE: To configure the JL-4 for the +D connection at recharge alternator energizing
you need to configure the parameter P.4041 with the value AIF.1300
– “D”. The
output is configured by default as AIF.0000
– “Unused”.
When the controller starts the engine, the JL-4 terminal supplies the necessary power for
energizing the battery recharge alternator.
With engine and alternator stopped, the alteD terminal is practically a short circuit to
the battery minus and the voltage at its ends is close to 0V. During and after engine starting,
as well as under normal operating conditions, with the revolution of the recharge alternator,
the +D voltage rises to the value of the battery voltage. When the engine stops, or even if only
the recharge alternator stops because of the breakage of the drive belt, the +D voltage returns
to 0V. The same thing happens in case of malfunction of the alternator.
The current delivered with the alternator stationary is limited internally and is 200mA for 12V
systems and 100mA for 24V systems through an automatic threshold on the value of the
battery voltage. The transition point between the two power levels occurs at approximately
Vbatt = 19VDC.
The energizing command is activated together with the engine start command.
During the engine start cycle, up to when the engine is no longer acknowledged as started
with a method whatsoever (voltage, frequency, rpm, +D voltage, oil pressure), the command
is kept active for 30s continuously and then is deactivated/activated every 5s (5s ON followed
by 5s OFF) until the starting sequence ends. When the engine is acknowledged as started,
the command is kept active for 5 more seconds and then is released.
HS315 also uses the JL-4 to measure the +D voltage of the recharge alternator, both during
engine start and during its operation. It is displayed in the S.16 page, under item D+.
The voltage measure can be used for two purposes:
•
Engine running/stop detection. Set parameters P.0230 and P.0231 to zero to disable
this function.
•
Usually the recharge alternator is driven by the drive shaft through a drive belt.
Normally, the drive belt also drives other mechanical components of the engine, for
example the cooling fan of the radiator. If during engine operation the +D voltage of
the recharge alternator drops below 0V or if it does not rise after start, once the P.0349
time is up, it is assumed that the belt is broken or at least that there is a malfunction
and the HS315 activates an anomaly that can be configured with the parameter
P.0357 (as warning, deactivation or lock) to protect the engine from the lack of
operation of the mechanical parts driven by the belt. Set parameter P.0349 to zero to
disable this function.
The controller provides two 10A@250Vac dry contact relays. They can be used for the
opening/closure commands for the circuit breakers. On the JI connector there is a changeover
dry contact for each of the two relays.
Terminal Function
JI-1 Normally open contact, of the output 08.
JI-2 Normally closed contact, of the output 08.
JI-3 Common contact of the output 08.
JI-4 Normally open contact, of the output 07.
JI-5 Normally closed contact, of the output 07.
JI-6 Common contact of the output 07.
You must use the normally opened contact for GCB circuit breaker, and the normally
closed contact for BCB, LCB and ACB circuit breakers: that way, even if the controller