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Output: Pressure setting
1,0E-01
1,0E-02
1,0E-03
1,0E-04
1,0E-05
1,0E-06
1,0E-07
1,0E-08
1,0E-09
0
1
2
3
4
FAULT: this open collector output signal is ON
when a system fault condition is detected.
PROGRAMMABLE SET POINT: this open collec-
tor output signal is enabled when the reference
quantity chosen (frequency, power or time or pres-
sure or normal) is higher than the set threshold.
The signal can be "high level active" (that is the
output is normally OFF and becomes ON when ac-
tivated), or "low level active" (that is the output is
normally ON and becomes OFF when activated).
Moreover, if the reference quantity is the frequency
or the power or pressure drawn, it is possible to
set the hysteresis (in % of the threshold value) to
avoid bouncing.
For example:
− reference quantity: frequency
− threshold: 867 Hz
− hysteresis: 2%
− activation type: "high level"
It is possible to delay the set point checking for a
programmable delay time.
The PROGRAMMABLE SET POINT signal has the
following default settings:
− reference quantity: frequency
− thereshold: 867 Hz
− hysteresis: 2%
− activation type: high level
− delay time: 0 second
5
6
7
8
9
10
Voltage (V)
The Navigator Software (optional) allows the op-
erator to set all the programmable feature.
How to connect the open collector input of the
controller
Here below there are the typical connections of the
open collector input of Mini-TASK AG81 to an ex-
ternal system. Two cases are considered:
1.
the customer supplies the 24 Vdc
2.
the customer does not supply the 24 Vdc.
Please note that on the connector a 24 Vdc, 30
mA voltage, a GROUND signal and the open col-
lector pin are available.
78/84
TECHNICAL INFORMATION
NOTE
Case 1
87-901-003-01(A)
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