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EVO HOT - EVOK HOT
| User and Maintenance Manual
40
ALARMS
Label
Fault
Cause
Effects
Remedy
E1
Probe1 faulty
(cold room)
• reading of out of range operating values
• probe faulty / short-circuited / open
• Display label
E1
• Alarm icon permanently ON
• Min/max alarm regulator disabled
• Compressor operation according to “
Ont
”
and “
OFt
” parameters.
• check probe type (NTC)
• check the probe wiring
• replace probe
AH1
Probe1 HIGH
Temperature alarm
• value read by Pb1 > HAL after time
of “
tAO
”. (see “MIN/MAX ALARMS table)
• Registration
AH1
label in the AL folder
• No effect on regulation
• Wait until temperature value read by probe1
returns below HAL.
AL1
Probe1 LOW
Temperature alarm
• value read by Pb1 < LAL after time
of “
tAO
”. (see “MIN/MAX ALARMS table)
• Registration
AL1
label in the AL folder
• No effect on regulation
• Wait until temperature value read by probe1 to
come back obove LAL
EA
External alarm
• Digital input activated (H11 set as external
alarm)
• Registration
EA
label in the AL folder
• Alarm icon permanently ON
• Regulation blocked if
EAL
= y
• check and remove the external cause which
generate alarm on D.I.
DIAGNOSTICS
Alarms are always indicated by the buzzer (if present) and the alarm icon .
To switch off the buzzer, press and release any key, the relative icon will continue to flash
.
NOTES
:
If alarm exclusion times have been set (see ‘AL’ folder in the parameters table) the alarm will not be signalled
.
A probe 1 (Pb1) malfunction alarm will appear directly on the display with the
indication E1.
DIAGNOSTICS
The instrument is designed for panel mounting. Make a hole of 29x71 mm, insert the instrument and fix it using the brackets provided. Do not
mount the instrument in humid and/or dirty places; it is suitable for use in ordinary polluted places. Ventilate the place in proximity to the instru
-
ment colling slits.
USING THE COPY CARD
The Copy Card is an accessory connected to the TTL serial port used for quick programming of the device parameters (upload and download a
parameter map to one or more devices of the same type). Upload (label UL) and copy card formatting (label Fr) operations should be performed
as explained below:
After the password ‘PA2’ has been putted in, press the
and
keys to scroll through to the required function (e.g. UL). Press the
key to
execute the upload. If the operation is successful, the display will show ‘
y
’, if not it will show ‘
n
’.
Upload (UL)
This function uploads the programming parameters from the device.
UPLOAD: device
Copy Card
Format (Fr)
This command is used to format the copy card, an operation which is necessary when using the card for the first time.
Important
:
when the copy card has been programmed, the parameter ‘
Fr
’ will delete all data that have been entered. This operation cannot be cancelled.
Download from reset:
Connect the copy card when the device is switched off. When
the device is switched on, the download from the copy card will
begin automatically. At the end of the lamp test, the display will
show ‘
dLy
’ if the operation was successful and ‘
dLn
’ if not.
DOWNLOAD: Copy Card
device
NOTES:
- after the parameters have been downloaded, the device uses the downloaded parameter map settings.