TECO F33 Series, Instruction Manual, Page: 135 / 192

132 Functional Description
11.6 Logical Functions and
Timers [600]
With the Comparators, Logic Functions and Timers,
conditional signals can be programmed for control or
signalling features. This gives you the ability to compare
different signals and values in order to generate moni-
toring/controlling features.
11.6.1 Comparators [610]
The comparators available make it possible to monitor
different internal signals and values, and visualize via
digital output or a contact, when a specific value or sta-
tus is reached or established.
There are 2 analogue comparators that compare any
available analogue value (including the analogue refer-
ence inputs) with two adjustable constants.
For the two analogue comparators two different con-
stants are available, Level HI and Level LO. With these
two levels, it is possible to create a clear hysteresis for
the analogue comparator between setting and resetting
the comparator output. This function gives a clear dif-
ference in switching levels, which lets the process
adapt until a certain action is started. With such a hys-
teresis, even an instable analogue signal can be moni-
tored without getting a nervous comparator signal.
Another function is to get a clear indication that a cer-
tain situation has occurred; the comparator can latch
by set Level LO to a higher value than Level HI.
There are 2 digital comparators that compare any avail-
able digital signal.
The output signals of these comparators can be logi-
cally tied together to yield a logical output signal.
All the output signals can be programmed to the digital
or relay outputs or used as a source for the virtual con-
nections [560].
Analogue Comparator 1 Value [611]
Selection of the analogue value for Analogue Compara-
tor 1 (CA1).
Analogue comparator 1 compares the selectable ana-
logue value in menu [611] with the constant Level HI in
menu [612] and constant Level LO in menu [613].
When the value exceeds the upper limit level high, the
output signal CA1 becomes high and !A1 low, see Fig.
107. When the value then decreases below the lower
limit, the output signal CA1 becomes low and !A1 high.
The output signal can be programmed as a virtual con-
nection source and to the digital or relay outputs.
Fig. 107 Analogue Comparator
Communication information
Default: Speed
Process Val 0 Set by Unit [310]
Speed 1 rpm
Torque 2 %
Shaft Power 3 kW
El Power 4 kW
Current 5 A
Output Volt 6 V
Frequency 7 Hz
DC Voltage 8 V
Heatsink Tmp 9 °C
PT100_1 10 °C
PT100_2 11 °C
PT100_3 12 °C
Energy 13 kWh
Run Time 14 h
Mains Time 15 h
AnIn1 16 %
AnIn2 17 %
AnIn3 18 %
AnIn4 19 %
Modbus Instance no/DeviceNet no: 43401
Profibus slot/index 170/50
Fieldbus format UInt
Modbus format UInt
(NG_06-F125)
0
1
Signal:CA1
Analogue value:
Menu [611]
Adjustable Level HI.
Menu [612]
Adjustable Level LO.
Menu [613]
611 CA1 Value
Stp Speed
A