ECP
300
EXPERT STEPPER
Page
35
OPERATION AND MAINTENANCE MANUAL
Rev. 01-20
DIAGNOSTICS BY MEANS OF ALARM CODES
The
ECP300 EXPERT
STEPPER
controller warns the operator in case of any anomalies through
the alarm codes displayed on the display and an audible signal emitted by a buzzer. The audible
alarm is silenced by pressing the UP key (the error code remains) and is reactivated by pressing
the SET key.
If an alarm condition occurs, one of the following messages will appear on the display:
ALARM
CODE
POSSIBLE CAUSE
OPERATION TO BE PERFORMED
E0i
E0E
Eeprom alarm
An error was detected in the EEPROM memory.
(outputs are all disabled except alarm outputs)
•
Turn the equipment off and on again.
•
Reset to default values.
E0
Functional fault of the ambient probe (S0)
•
Check the status of the ambient probe.
•
If the problem persists replace the probe.
E1
Functional fault of the defrost probe (S1).
In this case, any defrost will have a duration equal to
time d3.
•
Check the status of the defrost probe.
•
If the problem persists replace the probe.
E4
Functional fault of the suction temperature probe
(S4)
•
Check the condition of the suction probe.
E5
Evaporation Pressure probe functional fault (S5)
•
Check the evaporation pressure probe
status.
E6
Low battery alarm:
the control will work for at least
another 20 days, after which the clock setting will be
lost if the power supply to the panel fails.
•
Replace the clock battery (
CR2032
),
located on the board on the front of the
panel.
E8
Man in cold room alarm:
the “man in cell alarm”
button has been pressed to signal a dangerous
situation.
•
Reset the man in cell alarm input.
E9
Cold room light alarm
: when the light comes on with
the key, alarm E9 is activated after the time tdo. If it is
silenced and the light is not switched off, when the
time tdo expires again, the alarm will reappear.
•
Turn off the light.
Ect
Compressor thermal protection insertion:
the
outputs are all deactivated except the alarm one, if
present.
•
Check the compressor status.
•
Check compressor absorption.
•
If the problem persists, contact technical
support.
EcP
Compressor pressure switch protection insertion:
the outputs are all deactivated except for the alarm
one, if present.
•
Check the compressor status.
•
Check the compressor protection pressure
switch.
•
If the problem persists, contact technical
support.
EcL
Compressor low pressure protection insertion:
the
outputs are all deactivated except the alarm one, if
present.
•
Check the compressor status.
•
Check the compressor protection pressure
switch.
•
If the problem persists, contact technical
support.
EcH
Compressor high pressure protection insertion:
the outputs are all deactivated except the alarm one, if
present.
•
Check the compressor status.
•
Check the compressor protection pressure
switch.
•
If the problem persists, contact technical
support.
EcO
Compressor
oil pressure
switch
protection
insertion:
the outputs are all deactivated except for
the alarm one, if present.
•
Check the compressor status.
•
If the problem persists, contact technical
support.
CHAPTER 7: DIAGNOSTICS
CHAP. 7 - Diagnostics
7.1
