Chino KP 2000 Series, Instructions Manual

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Term Explanation
Output limiter
It is a function that sets higher
limit and lower limit in a range from
-5.0 to 105.0% in MV.
All the MVs (output value) on
the control, lie within the range
of higher limit and lower limit
that is set.
In case of option specification, output limiter can
be invalid during manual operation.
Output scaling
It is a function that lays out MV
from 0.0 to 100.0%, in a range from
higher limit value to lower limit
value that is set.
All the MVs (output value) on
the control, lie within the range
of higher limit and lower limit
that is set.
Ú
Option (Specify when placing an order)
Output variation limiter
It is a function that limits the variation quantity of MV (output value), for each control
cycle (approximately 0.1 seconds). For example when variation in MV is 50% and set
value of output variation limiter is 5%, calculating formula is approximately 0.1
seconds x 50 / 5 = approximately 1.0 seconds, and then approximately 1.0 seconds
are required for arriving to a variation of 50%.
By using this function appropriately, sudden variation in MV (output value) can be
avoided and controllability can be improved.
However, output during PV abnormality are not effect this function.
Output preset
It is a function that can set MV (output value) when SV = PV, when controlling only
the P (proportion) operation.
Preset manual
By using external signal input, MV (Output value) can be forcefully changed to this
setting value.
Output at the time of PV
abnormality
It is a function that considers forcibly MV (output value) as set value when, PV
(measurement value) exceeds the range (including higher limit burnout), is below
range (including lower limit burnout).
Separate settings can be done in case of over range (including higher limit burnout)
and under range (including lower limit burnout). In case of internal data abnormality,
MV (output value) is the same as that in case of over range (including higher limit
burnout).
In case of output 2 specifications, output 2 side is 0% for all conditions.
100%
H
L
0%
SV
Proportion band
Output value
Proportion band
100%
H
L
0%
SV
Output value