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Code: 02250144
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517 SRV
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250 --- SRV
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English
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6.2 Alarms/Warnings
Tab. 1 list all Alarms and Warnings, as well as explaining their effect on Dryer oper-
ation.
Whenever an alarm occurs, the current readings of temperatures and pressure are
registered in the status report (see para. 6.4).
Tab. 1 --- Alarms/Warnings
Alarm
code
Alarm/Warning
description
Action
Intervention
delay
HP
High discharge pressure alarm
Dryer off
Immediate
Ld
Low Dew Point alarm
Dryer off
Immediate
IE
Inverter error
Dryer off
Immediate
EP
Permanent memory error
Dryer off
Immediate
FP
Fan thermal protection alarm
Dryer off
Immediate
LP
Low suction pressure alarm
Dryer off
Immediate
Hd
High Dew Point warning
Signal only
Programmable
1÷60 min
AS1
Dew Point sensor fault
Dryer off
Immediate
AS2
Evaporation temperature sensor fault
Dryer off
Immediate
AS3
Suction temperature sensor fault
Signal only
Immediate
AS4
Ambient temperature sensor fault
Signal only
Immediate
AS5
Air inlet temperature sensor fault
Signal only
Immediate
AS6
Suction sensor pressure fault
Dryer off
Immediate
HI
High air inlet temperature warning
Signal only
Immediate
HA
High ambient temperature warning
Signal only
Immediate
LA
Low ambient temperature warning
Signal only
Immediate
UA
User alarm
See par. 6.3
Programmable
0÷600 sec
dA
Condensate drain alarm
Signal only
Immediate
PS
Programmed maintenance due --- Warning Signal only
Immediate
6.3 User alarms
The Dryer is equipped with a user alarm input (terminals 51 and 66 of Dryer’s ter-
minal board), useful to detect and signal a specific alarm condition, depending on
the user’s needs. The user alarm is completely programmable in effect on Dryer’s
operation, intervention delay, and reset mode.
S
Parameter B12 selects the effect of user alarm intervention on Dryer’s operation;
if its value is
“run”
, the Dryer continues to work, and the alarm condition is only
signalled activating the alarm relay; if its value is
“StoP”
, the Dryer stops.
S
Parameter B13 allows a delay for the alarm intervention to be programmed (in the
range 0 --- 600 secs.).
S
Parameter B14 selects the reset mode of user alarm, and has meaning only if the
effect is
“StoP”
; if its value is
“Auto”
, the Dryer automatically restarts when the
alarm cause has been resolved; if its value is
“MANUAL”
, the alarm must be man-
ually reset (either through the button
“alarm reset”
or the input
“remote reset”
,
terminals 51 and 64) for the Dryer to restart.
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