Autonics MT4Y Series Product Manual - Page 6

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Autonics MT4Y Series Product Manual

Function Description

■ Display method: frequency
It measures input signal frequency when it is AC input.
In order to measure frequency normally, input signal, over 10 % F.S. of the rated input range,
should be supplied.
Otherwise, it may not be measured normally.
The measurement range differs depending on the decimal point position.
It is available to adjust the high-limit display value gradient correction and exponent of INB at
parameter setting.
• Accuracy of frequency measurement: below 1 kHz, F.S. ± 0.1 % rdg ± 2-digit,
from 1 k to 10 kHz, F.S. ± 0.3 % rdg ± 2-digit
■ High-limit display value gradient correction
This function is to correct a gradient of High / Low-limit scale value.
And also can be used as correction function of high-limit scale value.
Adjustment range is setting value and multiply current gradient.
• E.g.: To display 3.000 when 200 mVDC for input range 0-1 VDC
15.000
12.000
9.000
6.000
Display value for
3.000
measuring input
1.000
0.2 0.4 0.6 0.8 1V
Input value
1. Select input range = 1V, decimal point position = 0.000 for measurement input in Parameter 1.
2. It has to be 15.000 at high-limit scale for 1 VDCᜡ in order to display 3.000 for 200 mVDCᜡ.
But if is disable due to setting range is 9.999.
3. In this case, please set as high-limit display value gradient correction × high-limit scale =
15.000.
■ High / Low-limit scale value
This function is to display setting of particular High / Low-limit value in order to display High /
Low-limit value of measured input.
If measured inputs are a and b and particular values are A and B, it will display a = A, b = B as
below graphs.
• When changing input range, it is changed automatically as factory default display range of
the input range.
Display
Display
value
value
B
B
A
A
a
b
a
Input
value
Display
Display
value
value
a
A
A
B
B
a
b
Input
value
■ Zero adjustment
It adjusts the display value of the optional configured input value as zero by force.
Zero point error can be adjusted with 3 ways as below.
1. Direct input correction value at Low-limit display value deviation correction parameter.
2. Set the keys for zero adjustment parameter to YES and press the [◀] + [▲] keys for 3 sec in
RUN mode.
3. Set the external input terminal parameter to ZERO and short the Hold / Zero terminal for
over 50 ms.
■ Error correction
It corrects display value error of measured input.
Display value = (Measured value × High-limit display value gradient correction)
+ Low-limit display value deviation correction
• E.g.: When the Input range 0 to 500 VDCᜡ and the display range is 0 to 500.0
If the low-limit display value is 1.2 to 0 VDCᜡ input, set -12 as deviation correction value to
display 0.0 by adjusting offset of the low-limit display value.
The display value to 500 VDCᜡ measured input varies by adjusting the offset of low-limit
display value.
If this display value is 501.0, calculate 500.0 / 501.0 (desired display value / the display value),
and set the 0.998 correction value as the High-limit display value gradient correction parameter
to display 500.0 by adjusting gradient of high-limit value.
■ Startup compensation time
This time function limits the operation of an output until the measured input (overvoltage
or inrush current) is stable at moment of power on. All outputs are OFF during startup
compensation time setting after power is applied.
■ Display cycle
In some applications the measured input may fluctuate which in turn causes the display to
fluctuate.
By adjusting the display cycle delay function time the operator can adjust the display time.
For example, if the operator sets the display cycle time to 4 sec, the display value displayed
will be the average input value over 4 sec and also will show any changes if any every 4 sec.
■ Max. / Min. peak value
It monitors max./min. peak value of display value based on the current displays value and then
displays the data at the parameters.
When pressing any one of front keys at the parameters, the monitored data is initialized.
Set the delay time at peak monitoring delay time parameter in order to prevent malfunction
caused by initial overcurrent or overvoltage, when monitoring the peak value.
H-SC
L-SC
INB.H Result
-
0.000
1.000
Disable
7.500
0.000
2.000
5.000
0.000
3.000
200 mVDCᜡ
= 3.000
3.750
0.000
4.000
3.000
0.000
5.000
Display
value
B
a
b
Input
A
b
Input
value
value
Display
value
b
A
a
b
Input
value
Input
value
B
■ Transmission (DC 4 - 20 mA) output scale adjustment
It sets transmission output for the display value at the output current DC 4 - 20 mA.
It sets display value for 4 mA at low-limit value of transmission output and 20 mA at high-limit
value of transmission output.
• The range between high-limit value of transmission output and low-limit value of
transmission output should be 10 %.
When min. set interval under 10 % F.S., it changed as over 10 % F.S. automatically.
• Preset display value is fixed to output as 4 mA at under low-limit value of transmission output
and 20 mA at over high-limit value of transmission output.
Output
20 mA
Min. setting range
4 mA
F.S. 10 %
Low-limit value
High-limit value
of transmission
of transmission
output
output

Segment Table

The segments displayed on the product indicate the following meanings. It may differ
depending on the product.
7 segment
11 segment
0
I
0
0
0
I
1
J
1
1
1
J
2
K
2
2
2
K
3
L
3
3
3
L
4
M
4
4
4
M
5
N
5
5
5
N
6
O
6
6
6
O
7
P
7
7
7
P
8
Q
8
8
8
Q
9
R
9
9
9
R
A
S
A
A
A
S
B
T
B
B
B
T
C
U
C
C
C
U
D
V
D
D
D
V
E
W
E
E
E
W
F
X
F
F
F
X
G
Y
G
G
G
Y
H
Z
H
H
H
Z
18, Bansong-ro 513Beon-gil, Haeundae-gu, Busan, Republic of Korea, 48002
www.autonics.com | +82-2-2048-1577 | [email protected]
Display value
12 segment
16 segment
I
0
I
0
I
0
I
0
I
J
1
J
1
J
1
J
1
J
K
2
K
2
K
2
K
2
K
L
3
L
3
L
3
L
3
L
M
4
M
4
M
4
M
4
M
N
5
N
5
N
5
N
5
N
O
6
O
6
O
6
O
6
O
P
7
P
7
P
7
P
7
P
Q
8
Q
8
Q
8
Q
8
Q
R
9
R
9
R
9
R
9
R
S
A
S
A
S
A
S
A
S
T
B
T
B
T
B
T
B
T
U
C
U
C
U
C
U
C
U
V
D
V
D
V
D
V
D
V
W
E
W
E
W
E
W
E
W
X
F
X
F
X
F
X
F
X
Y
G
Y
G
Y
G
Y
G
Y
Z
H
Z
H
Z
H
Z
H
Z
-
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z