Instruction manual

7. FUNCTIONS
IMSRM15-E6
112
7.2 Settings
(1) Memory area function
This function is to store the parameters such as set value (SV), etc. in up to eight memories. The
parameters which can be stored as one of memories are set value (SV), first alarm, second alarm,
heat-side proportional band (P), integral time (I), derivative time (D), control response parameter,
cool-side proportional band and deadband/overlap.
The parameters stored in one of eight memories retrieved at necessity and used for control. The
memory area used for this control is called the control area.
8
7
6
5
4
3
2
1
Memory area
Control area
Set value (SV)
First alarm
Second alarm
Heat-side proportional band (P)
Integral time (I)
Derivative time (D)
Control response parameter
Cool-side proportional band
Deadband/overlap
(2) Setting limiter
The setting limiter is used to restrict the setting range of the set value (SV).
[Example]
For a setting range of 0 to 400
C, a setting limiter (high limit) of 200 C and a setting limiter (low
limit) of 20
C.
(3) Setting change rate limiter
This function is used to set the set value change per one minute when the set value is changed.
Increasing the SV to a higher value Decreasing the SV to a lower value
Setting range
0 C
20
C
setting limiter (low limit)
400
C
200
C
Setting limiter (high limit)
Increase gradually
at specific rate
Changing the set value
SV
[Before changing]
Time
SV
SV
[After changing]
SV
Decrease gradually
at specific rate
SV
[After changing]
Time
SV
[Before changing]
Changing the set value