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ENG
ir33 universale +030220801 - rel. 2.1 - 21.06.2011
5.6 Special operating modes
When c33=1, 44 other parameters become available, the so-called special
parameters. The special parameters are used to completely de ne the
operation of each individual output available on the controller. In normal
operation, that is, choosing the operating mode using parameter “c0”,
these parameters are automatically set by the controller. When c33=1,
the user can adjust these settings using the 8 parameters that de ne
each individual output:
• dependence
• type of output
• activation
• di erential/logic
• activation restriction
• deactivation restriction
• maximum/minimum modulating output value (PWM or 0-10Vdc)
• cut-o
• speed up time
• type of forcing
Special parameters and correspondence with the various outputs
OUT1 OUT2 OUT3 OUT4
Dependence c34 c38 c42 c46
Type of output c35 c39 c43 c47
Activation c36 c40 c44 c48
Di erential/logic c37 c41 c45 c49
Activation restriction d34 d38 d42 d46
Deactivation restriction d35 d39 d43 d47
Minimum modulating output value d36 d40 d44 d48
Maximum modulating output value d37 d41 d45 d49
Cut-o F34 F38 F42 F46
Speed up time F35 F39 F43 F47
Type of forcing F36 F40 F44 F48
Tab. 5.j
The default and minimum and maximum values of the special
parameters depend on the number and type of outputs on the
model.
Before setting parameter c33, make sure the required starting mode
– param.c0 - has been set.
When c33=1, the special parameters are not visible and cannot be
set to achieve the required operation.
When setting a special parameter, always check the coherence of the
other 43 special parameters with regards to the type of operation
set.
5.6.1 Dependence (parameters c34,c38,c42,c46)
This is the parameter that determines the speci c function of each
output.
It links an output to a set point (control output) or a speci c alarm (alarm
output). Parameter c34, c38, c42, c46 correspond to outputs 1, 2, 3, 4
respectively and the eld of selection is from 0 to 29.
Circuit 1 is the control circuit when independent operation is not activated,
in which case control operates on circuits 1 and 2. If independent
operation is not activated but one of the settings relating to the alarm on
circuit 2 is selected, the alarm is signalled on the display but has no e ect.
Dependence = 0: the output is not enabled. This is the value set on
versions V and W for the outputs that are not available (that is 2, 3 & 4 for
version V, 3 & 4 for version W).
Dependence = 1 & 2: the output is the control output and refers to
St1/P1(*)/PID1 and St2/P2/PID2 respectively. In the subsequent special
parameters, “type of output”, “activation” and “di erential/logic”, the
operation of the output can be de ned completely.
Dependence = 3 to 14 and 19 to 29: the output is associated with one or
more alarms. See the chapter on “Alarms” for the complete list.
Dependence = 15: “timer” operation. The output becomes independent
of the measurement, set points, di erentials, etc. and continues to
switch periodically at a period=c12 (cycle time). The ON time (T_ON)
is de ned by the “activation” parameter as a percentage of the set
cycle time. If an alarm occurs or the controller is switched OFF, “timer”
operation is deactivated. For further information, see the description of
the parameters “type of output”, “activation”.
Dependence = 16: the output is the control output: the association St1/
P1 and St2/P2 depends on the status of digital input 1. If the input is
open, reference will be to St1/P1; if the input is closed, reference will be to
St2/P2. Changing the set point also reverses the operating logic.
Dependence = 17: the output is the control output: the association St1/
P1 and St2/P2 depends on the status of digital input 1. If the input is
open, reference will be to St1/P1; if the input is closed, reference will be to
St2/P2. Changing the set point maintains the operating logic.
Dependence = 18: a digital output can be selected to signal controller
ON/OFF status (controller ON/OFF in relation to the status of the digital
input: c29, c30=4). If the controller is OFF the relay is NC, if the controller is
ON the relay is NO. The alarm outputs are also deactivated when OFF.
DEPENDENCE
VALUE
OUTPUT ALARM RELAY
IN NORMAL
CONDITIONS
0 not active -
1 relative to St1 -
2 relative to St2 -
3 Generic alarm circuit 1 OFF
4 Generic alarm circuit 1 ON
5 Serious circuit 1 alarm and “High” alarm (E04) OFF
6 Serious circuit 1 alarm and “High” alarm (E04) ON
7 Serious circuit 1 alarm and “Low” alarm (E05) OFF
8 Serious circuit 1 alarm and “Low” alarm (E05) ON
9 “Low” alarm (E05) OFF
10 “Low” alarm (E05) ON
11 “High” alarm (E04) OFF
12 “High” alarm (E04) ON
13 Serious alarm circuit 1 and 2 OFF
14 Serious alarm circuit 1 and 2 ON
15 TIMER operation -
16 operation of output dependent on status of
digital input 1 with reversal of operating logic
-
17 operation of output dependent on status of
digital input 1 with operating logic maintained
-
18 ON/OFF status signal -
19 Generic alarm circuit 2 (relay OFF)
OFF
20 Generic alarm circuit 2 (relay ON)
ON
21 Serious alarm circuit 2 and E15 (relay OFF)
OFF
22 Serious alarm circuit 2 and E15 (relay ON)
ON
23 Serious alarm circuit 2 and E16 (relay OFF)
OFF
24 Serious alarm circuit 2 and E16 (relay ON)
ON
25 Alarm E16 (relay OFF)
OFF
26 Alarm E16 (relay ON)
ON
27 Alarm E15 (relay OFF
OFF
28 Alarm E15 (relay ON)
ON
29 Alarm E17 (relay OFF)
OFF
Tab. 5.k
(*) Warning, operating modes c0=3, 4, and 5 are exceptions: in these
cases, when dependence = 1, P1 is used for control to the left of St1,
while control to the right of St1 uses P2
Alarm relay OFF =output normally deactivated; energised with alarm.
Alarm relay ON = output normally activated; de-energised with
alarm.
When ON the relay is normally active: it is deactivated with an alarm.
This is an intrinsic safety feature, as the contact switches, and thus the
alarm is signalled, even if there is a power failure,
serious faults on the controller or a data memory alarm (E07/E08.)
In the models B and E, for the outputs 2 and 4, the dependence may be only
0, 1, 2.
5.6.2 Type of output (parameters c35,c39,c43,c47)
The parameter is active only if the output is the control output
(“dependence”=1,2,16,17) or TIMER (“dependence”=15).
Type of output=0: the output is on/o .
Type of output=1: the output is PWM , “timer”.
“Timer” operation is combined with “dependence”=15.
In the models B and E, the output type will always be 0 to 10 Vdc
independently from the value of this parameter.
5.6.3 Activation (parameters c36,c40,c44,c48)
The parameter is active only if the output is the control output
(“dependence”=1,2,16,17) or TIMER (“dependence”=15).
If “dependence”=1, 2, 16 and 17 it represents, for ON/OFF operation, the
activation point of the output while, for PWM operation and 0
to 10 V, it
indicates the point where the output has the maximum value.
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