EVCO EC6708 - Manual (Page 47)

Every Control S.r.l.
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47
SIGNALS AND ALARMS
Alarms
If the instrument displays the indication “AL3F” for four seconds (or the
indication “AL3F” flashing for four seconds), the buzzer utters an
intermittent beep and the alarm LED flashes (instrument locking)
it means that
• there was a number of upper condensing quantity alarms
enough to give the instrument locking and, if the indication is
flashing, that the quantity read by the condensing probe is
above the alarm setpoint again (turn off and turn on again the
instrument, see the parameters AC0, AC1, AC4, ACn and i7P:
the parameters AC0, AC1, AC4, ACn and i7P belong to the
User Menu; see the chapter User Menu on the page 32).
During this alarm all power steps get unloaded, the output Al1 gets
deactivated and the output Al1 gets activated.
If the instrument displays the indication “E HP” flashing for four sec-
onds, the buzzer utters an intermittent beep and the alarm LED flashes
(instrument locking) it means that
• there was a number of upper condensing quantity digital in-
put alarms enough to give the instrument locking (turn off and
turn on again the instrument, see the parameters AC0, AC1,
AC4, ACn and i7P: the parameters AC0, AC1, AC4, ACn and
i7P belong to the User Menu; see the chapter User Menu on
the page 32).
During this alarm all power steps get unloaded, the output Al1 gets
deactivated and the output Al1 gets activated.
If the instrument displays the indication “E0 r” flashing, the buzzer
utters an intermittent beep and the alarm LED flashes (suction probe
failure alarm) it means that
• the kind of connected suction probe is not proper (verify the
kind of connected suction probe)
• the suction probe is faulty (verify the suction probe integrity)
• there is a mistake in the instrument-suction probe connection
(verify the instrument-suction probe integrity)
• the pressure read by the suction probe is outside the limits
permitted by the suction probe in use (verify that the pressure
near the suction probe be inside the limits permitted by the
suction probe in use).
During this alarm the number of power steps established with the
parameter C 6 gets loaded (the parameter C 6 belongs to the User
Menu; see the chapter User Menu on the page 32), the output Al1 gets
deactivated and the output Al2 gets activated.
If the instrument displays the indication “E0 F” flashing, the buzzer
utters an intermittent beep and the alarm LED flashes (condensing
probe failure alarm) it means that
• the kind of connected condensing probe is not proper (see the
parameter /bE: the parameter /bE belongs to the User Menu;
see the chapter User Menu on the page 32)
• there is one of the faults saw in the previous case but referred
to the condensing probe.
During this alarm a power step loading/unloading gives the automatic
activation/deactivation of a condenser fans, the output Al1 gets deac-
tivated and the output Al2 gets activated.
If the instrument displays the indication “E i1 ... 8” flashing, and the
buzzer utters an intermittent beep, the alarm LED and the power step
or condenser fans associated to the output K1 ... 8 status LED flash
(user associated to the output K1 ... 8 locking digital
input alarm) it means that
• the user associated to the output K1 ... 8 locking digital input is
activated (deactivate the user associated to the output K1 ... 8
locking digital input, see the parameters i1P and i2P: the pa-
rameters i1P and i2P belong to the User Menu; see the chap-