Blanket Warmer Operating Manual
11
DIGITAL CONTROLLER
ALARM SIGNALLING
Message
Cause
Outputs
P1
Room Probe Failure
“Cy” Unit ON time with faulty probe
(0+99 min) time during which the unit
is active in case of faulty thermostat probe.
With Cy=0 unit is always OFF.
“Cn” Unit OFF time with faulty probe
(0+99 min) time during which the unit
is OFF in case of faulty thermostat probe.
With Cn=0 unit is always active
HA
Maximum Temperature Alarm
Outputs Unchanged
LA
Minimum Temperature Alarm
Outputs Unchanged
EA
External Alarm
Outputs Unchanged.
CA
Serious External Alarm
ALL Outputs OFF
dA
Door Open
Unit and fans restart
ALARM RECOVERY
Probe alarm
P1
starts seconds after the fault in the related probe; the alarm automatically
stops after the probe restarts the normal operation. Check connections before replacing the
probe. Temperature alarms
HA
and
LA
automatically stop as soon as the temperature
returns to normal values. Alarms
EA
and
CA
recover as soon as the digital input is disabled.
