Eaton ELC-PB, Programming Manual

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E L C P r o g r a m m i n g M a n u a l
F o r m o r e i nf o r m a t i o n v i sit :
w w w. e a t o n . c o m
MN05003003E
3-258
Device No. Function Set-point range Explanation
Derivative gain (K
D
)
-30,000~30,000(
%)
The proportion for minimizing the
derivative value (The rate of
change of the process error). For
control mode K0~K2, K5.
S
3
+3:
Derivative time
constant (T
D
)
-30,000~30,000
(ms)
For control mode K10
S
3
+4: Control mode
0: Automatic control
1: Forward control (E = SV - PV).
2: Reverse control (E = PV - SV).
5: Automatic mode with MV upper/lower bound control.
When MV reaches upper/lower bound, the
accumulation of integral value stops.
10: T
I
/ T
D
mode with MV upper/lower bound control.
When MV reaches upper/lower bound, the
accumulation of integral value stops.
S
3
+5, 6:
Tolerable range for error
(E), 32-bit
0~
2,147,483,647
E = the error between SV and PV.
If
S
3
+5 is set as 5, when E is
between -5 and 5, MV will be 0.
When
S
3
+5 = K0, the function will
not be enabled.
S
3
+7, 8:
Upper bound of output
value (MV) , 32-bit
-2,147,483,648~
2,147,483,647
Ex: if
S
3
+6 is set as 1,000, MV will
be 1,000 when it exceeds 1,000.
S
3
+6 has to be bigger or equal to
S
3
+7, otherwise the upper bound
and lower bound value will switch
S
3
+9, 10:
Lower bound of output
value (MV) , 32-bit
-2,147,483,648~
2,147,483,647
Ex: if
S
3
+7 is set as -1,000, MV will
be -1,000 when it is smaller than
-1,000.
S3+
11, 12:
Upper bound of integral
value, 32-bit
-2,147,483,648~
2,147,483,647
Ex: if S3+8 is set as 1,000, the
integral value will be 1,000 when it
is bigger than 1,000 and the
integration will stop. S3+8 has to
be bigger or equal S3 +9;
otherwise the upper bound and
lower bound value will switch.