IDEC SmartRelay Manual
231
IDEC SmartRelay functions
4.4 Special functions list - SF
4.4.35
Max/Min
Short description
The Max/Min function records the maximum or minimum value of Ax.
Symbol in
IDEC SmartRelay
iring
Description
En
A signal at input En (Enable) outputs an analog value
to A , depending on the settings of parameters ERst
and Mode.
S1
S1 functions only when the parameter Mode is set to 2.
If Mode is set to 2, a change in status from 0 to 1 at
input S1 (selector) outputs the maximum value to A .
If Mode is set to 2, a change in status from 1 to 0 at S1
outputs the minimum value to A .
Ax
Input Ax is one of the following analog signals:
AI1 to AI8 ( )
AM1 to AM64
NAI1 to NAI32
A 1 to A 8
NA 1 to NA 16
Block number of a function with analog output
Parameter
Mode:
Possible settings:
0, 1, 2, 3
Mode 0: A Min
Mode 1: A Max
Mode 2 and S1 0 (low): A Min
Mode 2 and S1 1 (high): A Max
Mode 3: A Actual value of Ax
ERst (Enable Reset):
Possible settings:
ERst 0: disable reset
ERst 1: enable reset
Retentivity:
/ no retentivity
R the status is retentive
Output A
The function issues a minimum, maximum, or current
value at A , depending on your configuration.
AI1 to AI8: 0 V to 10 V corresponds with 0 to 1000 (internal value).
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