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The generic alarm functions can be associated with an alarm already
featured on UltraCella (for example CHt, high condenser temperature
alarm, or LP, low pressure alarm), or to digital inputs D12/DI3, which
therefore need to be configured specifically.
Par.
H1
H5
Par.
A5
A9
Description
Configuration of digital input DI2
15 = alarm from generic function
Configuration of digital input DI3
15 = alarm from generic function
Def
0
Min
0
Max
15
U.o.M
-
0
0
15
-
Description
Def
AUX1 output configuration
0
8 = Generic ON/OFF control function 1
9 = Generic ON/OFF control function 2
AUX2 output configuration
0
8 = Generic ON/OFF control function 1
9 = Generic ON/OFF control function 2
Min
0
Max
17
U.o.M
-
0
17
-
6.18.1 ON/OFF control
UltraCella can manage 2 ON/OFF control functions, with direct or reverse
action and settable control set point and differential. The control variable
is defined by parameter AS1 (AS2).
Par.
AS1
r1S
SS1
Description
Def
ON/OFF control 1: control variable 3
configuration
0
Sm
8 generic temperature
probe 2
1 Sd1
9 generic temperature
probe 3
2
Sr
10 generic temperature
probe 4
3
Sv
11 generic temperature
probe 5
4 Sd2 12 generic humidity
probe 4
5
Sc
13 generic humidity
probe 5
6
SA
14 generic pressure
probe 5
7
Su
ON/OFF control 1: mode
0
0/1=direct/reverse
ON/OFF control 1: set point
0,0
rS1
ON/OFF control 1: differential
AS2
SS2
ON/OFF control 2: control variable
configuration
0
Sm
8 generic temperature
probe 2
1
Sd1
9 generic temperature
probe 3
2
Sr
10 generic temperature
probe 4
3
Sv
11 generic temperature
probe 5
4
Sd2 12 generic humidity
probe 4
5
Sc
13 generic humidity
probe 5
6
SA
14 generic pressure
probe 5
7
Su
ON/OFF control 2: mode
0/1=direct/reverse
ON/OFF control 2: set point
0,0
rS2
ON/OFF control 2: differential
2,0
r2S
2,0
3
Min
0
Max U.o.M.
14
-
Fig. 6.ah
For each ON/OFF control function, two alarm absolute thresholds and an
alarm notification delay can be set.
0
1
-
-50,0 200,0 °C/°F/
0,0 100,0 rH%/
-20,0 999 bar/
psi
0,1 20,0 °C/°F/
rH%/
bar/
psi
0
14
-
Description
Def
ON/OFF control 1: absolute low 0,0
alarm threshold
AH1
ON/OFF control 1: absolute high
alarm threshold
0
Ad1
AL2
ON/OFF control 1: alarm delay
ON/OFF control 2: absolute low
alarm threshold
0
0,0
AH2
ON/OFF control 2: absolute high
alarm threshold
0
Ad2
ON/OFF control 2: alarm delay
0
Min
-50.0
0.0
-20.0
-50.0
0.0
-20.0
0
-50.0
0.0
-20.0
-50.0
0.0
-20.0
0
Max
200.0
100.0
999
200.0
100.0
999
250
200.0
100.0
999
200.0
100.0
999
250
U.o.M
°C/°F/
rH%/
bar/psi
°C/°F/
rH%/
bar/psi
min
°C/°F/
rH%/
bar/psi
°C/°F/
rH%/
bar/psi
min
The following alarms are generated by the functions:
• GL1,GL2: alarms when exceeding low thresholds AL1, AL2
• GH1, GH2: alarms when exceeding high thresholds AH1, AH2
0
0
1
Example 1: ON/OFF control 1 based on pressure (input B5, 4 to 20 mA)
with direct action via AUX1. Control set point 15 bars, differential 3 bars.
Set:
• /P5 = 0 -> input B5 to 4 to 20 mA
• /A5 = 4 -> generic pressure probe 5
• AS1 = 14 -> generic pressure probe 5
• r1S = 0 -> direct action
• SS1 = 15 -> control set point 15 bars
• rS1 = 3 -> differential 3 bars
• H1 = 8 -> output AUX1 for ON/OFF control 1
-
-50,0 200,0 °C/°F/
0,0 100,0 rH%/
-20,0 999 bar/
psi
0,1 20,0 °C/°F/
rH%/
bar/
psi
Example 2: ON/OFF control 2 based on humidity (input B4, 0 to 10 V) with
reverse action on AUX2. Control set point 75% rH, differential 10% rH.
Set:
• /P4 = 2 -> input B4 to 0 to 10 V
• /A4 = 4 -> generic humidity probe 4
• AS2 = 12 -> generic humidity probe 4
• r2S = 1 -> reverse action
• SS2 = 75 -> control set point 75% rH
• rS2 = 10 -> differential 10% rH
• H5 = 9 -> output AUX2 for ON/OFF control 2
To enable the function, set AS1/AS2 to a value greater than 0. To use
outputs AUX1/AUX2 for generic ON/OFF functions, set parameters H1/
H5.
UltraCella +0300083EN - rel. 1.6 - 31.10.2015
Par.
AL1
58