ENG
The low temperature alarm is signalled by the buzzer and code LO on the display. The same applies to
the high temperature alarm (HI), with AH instead of AL.
Note:
tThe meaning of parameters AL2, AH2, AA2, A2 and Ad2 is similar to AL, AH, AA, A1 and Ad
however relating to St2.
Code Description
Def Min Max UOM User
User
terminal
A0
High and low temp. alarm reset differential
2
0.1 20 °C/°F
S
YES
A1
Alarm thresholds (AL, AH) relative to the set point St or
absolute
0/1 = relative /absolute
0
0
1
-
S
NO
A2
Alarm thresholds (AL2, AH2) relative to the set point St2 or
absolute
0/1 = relative /absolute
0
0
1
-
S
NO
A10
Configure solenoid/comp. control during ext. alarm with fixed
15 min OFF time
0 = always OFF
100 = always ON
0
0
14
-
S
NO
A11
Delay time for delayed external alarm
0 = Signal-only alarm
0
0
14
-
S
NO
AL
High temp. alarm threshold
4 -50 50 °C/°F
S
YES
AH
Low temp. alarm threshold
10 -50 50 °C/°F
S
YES
AL2
High temp. alarm 2 threshold
0 -50 50 °C/°F
S
NO
AH2 Low temp. alarm 2 threshold
0 -50 50 °C/°F
S
NO
Ad
Delay time for high and low temp. alarms (AH, AL)
120 0 240 min
U
YES
Ad2 Delay time for high and low temp. alarms (AH2, AL2)
30
1 240 min
U
NO
Note:
l
the LO (LO2) and HI (HI2) alarms are reset automatically. A0 represents the hysteresis between the
alarm activation and deactivation value;
l
for delayed alarms from digital input (dlb=3, code dA), the contact must remain open for a time
greater than A11. When an alarm event occurs, a counter starts and generates an alarm when
reaching the minimum time A11. If during the count the value measured returns within the
threshold or the contact closes, the alarm is not signalled and the count is reset. When a new alarm
condition occurs, the count starts from 0 again. Parameter A10 has a similar meaning to parameter
c4 (duty setting). If an external alarm occurs (immediate or delayed) the compressor works for a
time equal to the value set for A10 and remains off for a fixed time of 15 minutes.
Fig.8.b
Ref.
Description
LO, LO2 Low temperature alarms
HI, HI2
High temperature alarms
Ref.
Description
S1, S2
Probes
102
| 8. Alarms and signals
0300086EN rel. 1.0 – 04.09.2018
Содержание MPXone ACS00CB000010
Страница 2: ......
Страница 6: ......
Страница 17: ...2 6 1 Panel model Fig 2 l ENG MPXone 0300086EN rel 1 0 04 09 2018 2 Installation 17...
Страница 18: ...ENG 2 6 2 DIN rail model Fig 2 m 18 2 Installation MPXone 0300086EN rel 1 0 04 09 2018...
Страница 22: ...ENG DIN Fig 2 s RS485 supervisor network Fig 2 t Fig 2 u 22 2 Installation MPXone 0300086EN rel 1 0 04 09 2018...
Страница 107: ......