[DB600] General Instruction Manual
MODE 6
- 92 -
□□□
□□□
▲
SEL
↑
↓▼
SEL
D
e
a
d
band
PID dead band /
output dead band
Sets the PID dead band [PID control]/output dead band [two-position control].
"
□□□
"
Function OFF [PID control]
* For the case of two-position control (P = 0.0%), operation is
performed with the output dead band 0.1% even if 0.0% is
set.
"
□□□
"
to
"
□□□
"
0.1 to 9.9 [%]
Use the [
], [
] and [ENT] keys to set the PID dead band/output dead band.
Use the [>] key to move the cursor to the right digit.
The minimum value in two-position control (P = 0.0%) is 0.1%.
[PID dead band (PID control) operation]
{
・
If Deviation ≦ (−PID dead band)
Deviation for PIDcontrol calculation [%] = Deviation [%] + PID dead band [%]
・
If Absolute value of deviation < 𝑃𝐼𝐷 𝑑𝑒𝑎𝑑 𝑏𝑎𝑛𝑑
Deviation forPID control calculation [%] = 0 [%]
・
If Deviation ≧ PID dead band
Deviation for PID control calculation[%] = Deviation [%] − PID dead band [%]
[Output dead band (two-position control) operation]
{
・
If Deviation[%] < −
Output dead band[%]
2
, Output value of
0.0%
・
If Deviation[%] >
+
Output dead band[%]
2
, Output value of 100.0%
・
Else ( out of output dead band), no update of output value
* When a deviation is within the output dead band immediately after start-up, the
output will be 0.0%.
▲
SEL
↑
↓▼
SEL
H
e
a
tin
g
/c
o
o
lin
g
Control operation
Sets the control operation.
"
"
Heating control
"
"
Cooling control
Use the [
], [
] and [ENT] keys to set the control operation.
□□
▲
SEL
↑
↓▼
SEL
P
re
s
e
t
Output preset
Sets the output preset.
"
"
to
"
□
"
-100.0 to 100.0 [%]
Use the [
], [
] and [ENT] keys to set the output preset.
Use the [>] key to move the cursor to the right digit.
[PID control]
Sets the output value immediately after starting control calculation. This output value
is output when control calculation is started in the PV = SV state such as PV start.
[P control]
Sets the output value for the case of PV = SV.
