Silencing Buzzer/Alarm Relay Output Alarm Signals • 17
14 Alarm Signals
14.1.Silencing Buzzer/Alarm
Relay Output
If tbA = Y, the buzzer and the relay are silenced by
pressing any key.
If tbA = n, only the buzzer is silenced while the alarm relay
is ON until the alarm condition recovers.
14.2.Alarm Recovery
Probe alarms P1, P2, P3, and P4 start some seconds after
the fault in the related probe; they automatically stop some
seconds after the probe restarts normal operation. Check
connections before replacing the probe.
Temperature alarms HA, LA, HA2, and LA2
automatically stop as soon as the temperature returns to
normal values.
Alarms EA and CA (with i1F = bAL) recover as soon as
the digital input is disabled.
Alarm CA (with i1F = PAL) recovers only by switching
OFF and ON the device.
14.3.Other Messages
Message Cause Outputs
P1 Room probe failure
Compressor output
acc. to par. Con and
CoF
P2
Evaporator probe
failure
Defrost end is timed
P3 Third probe failure Outputs unchanged
P4
Fourth probe
failure
Outputs unchanged
HA
Maximum
temperature alarm
Outputs unchanged.
LA
Minimum
temperature alarm
Outputs unchanged.
HA2
Condenser high
temperature
It depends on the
AC2 parameter
LA2
Condenser low
temperature
It depends on the
bLL parameter
dA Door open Compressor restarts
EA External alarm Output unchanged.
CA
Serious external
alarm (i2F=bAL)
All outputs OFF.
CA
Pressure switch
alarm (i2F=PAL)
All outputs OFF
rtF
Real time clock
board failure
Alarm output ON;
Other outputs
unchanged;
Defrosts according
to par. idF. Contact
the service.
Table 14-1 - Alarm Signals
Message Output
Pon Keyboard unlocked
PoF Keyboard locked
noP
In programming mode:
No parameter is present
On the display or in dP2, dP3, dP4:
The selected probe is not enabled
Table 14-2 - Additional Display Messages
To Next Page
Loading...
Need help?
General
