TECHNICAL MANUAL
CVM 3000
C 5030 CV/04-99 GB
24
5.10 ALARMS
NB: if microprocessor’s data logger is enabled when a manual reset alarm
appears (except for E003, E004, E020, E211, E203 and E213 which have automatic
reset) keyboard response will slow down for about a minute, which is the time
required to store in the memory the status of the last 10 minutes of unit operation.
During this phase it is important:
1.
DO NOT to access the programming menus.
2.
DO NOT to disconnect the power supply to the unit.
At the conclusion of this phase the keyboard will resume normal operating speed.
There are two types of alarm: the circuit/compressor and the general alarms.
5.10.1 Circuit and/or compressor alarms
Display of circuit and compressor alarms
The circuit alarms are signalled by the lighting up of the
FAULT (A2)
LED
corresponding to the compressor for which the alarm has activated. To visualise the
alarm:
+
press the
B3
key – The number of the selected compressor will appear on the
B2
display; to pass to the next compressor press the
B3
key again, then select the
compressor in alarm status; once the compressor has been selected, one of the
B1
LED’s will light up to indicate the type of alarm.
+
Press the “arrow up”
B6
key – the alarm code will appear on the
B5
display.
Alarm reset:
+
press the
A1
key corresponding to the compressor in alarm status; if the event that
caused the alarm has been removed (fault LED flashing), the alarm will be reset.
