Table of Contents
Advertisement
ALARM AND SIGNALS
ALARMs AnD sIGnALs
In the event of an alarm, the machine performs the following
actions:
• activates the buzzer and display
ON);
• activates the alarm relay (according to parameters HF,
HA);
• displays the alarm code and switches on the corresponding
red LED.
In this condition, pressing the alarm button silences the buzzer.
The termination of alarms with automatic reset, if no alarms
with manual reset are active, brings about:
• the switching off of the buzzer;
• the deactivation of the alarm relay, see parameter HF;
table of alarms
n.
cod.
Description
1
E1
probe B1
2
E2
probe B2
3
E3
probe B3
4
E4
probe B4
5
Er: E
EEPROM boot
6
EE
EEPROM run
7
EL
insuff. Power
8
H1
high press C1
9
H2
high press C2
10
L1
low press C1
11
L2
low press C2
12
F1
filter dirty
13
FL
flow
14
FA
smoke-fire
15
CF
water flow
16
r1
heating elements
17
At
supply temp
18
AH
humidifier
19
Lt
low temp.
20
Ht
high temp.
21
ht
high temp. prealarm
22
LH
low humid.
23
HH
high humid.
24
tC
comp. thermal
25
tF
fan thermal
26*
t1 / t2
fan 1-2 thermal
28
AL
serious generic
29
PA
power fail
30
CL
clock
31
n1 +
counter comp.1
32
n2 +
counter comp.2
33
nF +
counter filter
34
nn +
counter fan
= serious alarms: in the configuration with two alarm relays, these activate the alarm output; the other alarms, ON the
other hand, activate the dehumidification.
Page - IOM / @DNOVA-µAC-0907-E
, (if enabled and machine
Delay
Reset
Buzz.
1 min
P5
ON
1 min
P5
ON
1 min
P5
ON
1 min
P5
ON
imm.
Auto
-
imm.
Auto
ON
imm.
Auto
ON
imm.
Man
ON
imm.
man
ON
P3
P5
ON
P3
P5
ON
imm.
P5
ON
P1/2
P5
ON
imm.
P5
ON
imm.
P5
ON
imm.
man
ON
2min
P5
ON
30 s
P5
ON
PA
P5
ON
PA
P5
ON
PA
P5
ON
PA
P5
ON
PA
P5
ON
imm.
P5
ON
imm.
P5
ON
imm.
P5
ON
PC
Pb
ON
2 s
auto
ON
imm
man
ON
imm.
c9
ON
imm.
cA
ON
imm.
FC
ON
imm.
FA
ON
• the switching off of the red alarm LED;
• the re-activation of the actuators switched off by the alarm.
Pressing the
and
buttons together for 2 seconds cancels
the display of the alarm codes. In the event of alarms with
manual reset, pressing the
seconds brings about:
• the deactivation of the alarm relay, see parameter HF;
• the switching off of the red alarm LED;
• the re-activation of the actuators switched off by the alarm.
The maintenance signals for compressors 1 and/or 2, the
fan and the filter, due to the exceeding of the hour counter
thresholds, activate the symbol
LED, the buzzer and the alarm relay. The alarm messages are
shown cyclically in the order indicated in the following table.
On termination, the display of the percentage of humidity (if
present) returns for 6 seconds.
Alarm
c1
c2
out6
out1
out2
ON
OFF
OFF
ON
-
-
ON
-
-
ON
-
-
-
OFF
OFF
ON
-
-
ON
-
-
ON
OFF
-
ON
-
OFF
ON
OFF
-
ON
-
OFF
ON
-
-
ON
OFF
OFF
ON
OFF
OFF
ON
-
-
ON
-
-
ON
OFF
OFF
ON
-
-
ON
-
-
ON
ON
ON
ON
-
-
ON
-
-
ON
-
-
ON
OFF
-
ON
OFF
OFF
ON
-
-
ON
OFF
OFF
ON
OFF
-
ON
-
-
ON
-
-
ON
-
-
ON
-
-
ON
-
-
and
buttons together for 2
on the display, the red
R1
R2
sys/on Fan
out3
out4
out5
OFF
OFF
-
-
-
-
-
-
-
-
-
-
OFF
OFF
OFF
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
OFF
OFF
OFF
OFF
OFF
OFF
-
-
-
OFF
OFF
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
OFF
OFF
OFF
-
-
OFF(1)
OFF
OFF
OFF
OFF
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Y2
-
-
-
-
OFF
-
-
-
-
-
-
-
OFF
OFF
-
-
-
-
-
-
-
-
-
-
OFF
-
OFF
-
-
-
-
-
-
Advertisement
Table of Contents
Need help?
Do you have a question about the @DNOVA 2mAC ADVANCED CONTROLLER and is the answer not in the manual?