EVCO | 21.10.2020 | AZ
| 35
144EJBSI104
EVLJBOX HP Sequencer -
Application manual
Table of alarms
The table below lists all the alarms managed by the application.
The alarms are presented in the order in which the alarms are shown when active.
The alarms can all be seen even with the machine switched off.
Code
Alarm description
Re-arm
Consequence
Delay
AL01
Slave configuration
Manual
–
Inhibits main regulation
–
Inhibits MODBUS communication
60 seconds
AL02
Slave 1 communication
Automatic
–
Inhibits regulation of slave 1
60 seconds
AL03
Slave 2 communication
Automatic
–
Inhibits regulation of slave 2
60 seconds
AL04
Slave 3 communication
Automatic
–
Inhibits regulation of slave 3
60 seconds
AL05
Slave 4 communication
Automatic
–
Inhibits regulation of slave 4
60 seconds
AL06
Slave 5 communication
Automatic
–
Inhibits regulation of slave 5
60 seconds
AL07
High evaporator temperature
Automatic
–
Signal only
-
AL08
Low evaporator temperature
Automatic
–
Signal only
-
AL09
High condenser temperature *)
Automatic
–
Signal only
-
AL10
Low condenser temperature *)
Automatic
–
Signal only
-
AL11
RTC faulty or disconnected
Auto/Manu **)
–
Signal only
-
AL12
Evaporator input temperature probe
Automatic
–
Inhibits regulation dependent on it
Can be set
AL13
Evaporator output temperature probe
Manual
–
Inhibits regulation dependent on it
–
If regulation probe, i turns off all the
devices and chnges the status of the
sequencer in “OFF by alarm”
Can be set
AL14
Condenser input temperature probe *)
Automatic
–
Inhibits regulation dependent on it
Can be set
AL15
Condenser output temperature probe *)
Manual
–
Inhibits regulation dependent on it
–
If regulation probe, i turns off all the
devices and chnges the status of the
sequencer in “OFF by alarm”
Can be set
*) Alarms managed only with slaves with water condenser. If the slaves have an air condenser, they will be disabled
**) Automatic or manual alarm (can be set by parameter)
Blocking alarms for the master
The following alarms generate a blocking alarm for the master:
–
Slave configuration alarm
–
Communication alarm of all the configured slaves
–
Regulation probe alarm
Blocking alarms for the slaves
The table below shows the blocking alarms which inhibit regulation of the slaves
Code
HPRU
AL01
Low temperature
AL02
High temperature
AL03
Flow switch
AL04
High pressure switch
AL05
Low pressure switch
AL06
High pressure transducer
AL07
Low pressure transducer
AL08
No start-up due to low pressure
AL09
Antifreeze
AC21
Compressor 1 thermal switch
