Jaquet MultiTasker T601, Инструкция по эксплуатации

Страница: 55 / 73

Instruction Manual T601 JAQUET AG
Revision: 004
55/73
8.2.2 Signal failure
Signal failure is defined as the sudden transition from an input frequency to no further recognisable pulses.
The frequency is then calculated as follows:
n t
f


t Measuremen
1
n: the number of measurement intervals without an input signal
The measured speed thereby follows an exponential function to the minimum frequency (0.025Hz) and then
falls to zero.
8.3 Analog Input
The analog input may be connected to a Pt100 temperature sensor or an analog signal (see 6.1.3 Terminal B)
If a Pt100 is connected the resistance of the sensor is measured and converted into a temperature value
based on the Pt100 characteristic. (Accuracy 0.5°C).
If an analog signal is connected it may be defined as 0 … 20mA or as 4mA … 20mA.
NB
: If the wrong configuration is selected the sensor may be damaged! (Pt100: I=950uA, Current output I
max
=
24mA)
8.4 Functions
8.4.1
“Exec“ Push button
The front panel “Exec“ button is OR
ed
with binary input B1. Pushing the button executes the B1 function.
8.4.2 Parameter sets A, B, C and D
Binary input configuration
Status
BIN 1
Status
BIN 2
Selected
Parameter set
Binary input 1 to <Selection of Control A/B>
Binary input 2
not to parameter set selection
0 X A
1 X B
Binary input 1 not to parameter set selection
Binary input 2 to <Selection of Control C/D>
X 0 C
X 1 D
Binary input 1 to <Parameter set selection A/B> and
Binary input 2 to <Parameter set selection C/D>
0 0 A
0 1 B
1 0 C
1 1 D
For delay in switching between Parameter sets B and A see Paragraph 7.7.17 Change-over delay.
8.4.3 Limits
User defined upper and lower limits allow wide or narrow hysteresis to be set. Unless otherwise required we
recommend a hysteresis of 10%.