8-14
IM 05P02D41-01EN
When the Heating Side is in ON/OFF Control and the Cooling Side is in PID Control:
The following shows the formula and operation example.
HOUT = OUT > ( 50% + + )
Other than this case, maintain current state.
Output turns on when
2
DB
2
HYS
*: OUT: control output, HOUT: heating-side control output,
COUT: cooling-side control output, DB: dead band, and
HYS: heating-side hysteresis
COUT = ( 50%
–
OUT
–
) × 2
2
DB
Positive Dead Band
0%
Dead band
(DB)
Dead
band
(DB)
Hysteresis (HYS)
Cooling-side control output (%)
Heating-side control output (%)
0%
50%
Control computation output
100%
100%
Cooling-side
control output
high limit
(OHc)
0%
100%
0%
50%
100%
(OUT)
Negative Dead Band
0%
0%
50%
100%
100%
0%
100%
0%
50%
100%
Dead band
(DB)
Dead band
(DB)
Hysteresis (HYS)
Cooling-side control output (%)
Heating-side control output (%)
Control computation output
Cooling-side
control output
high limit
(OHc)
(OUT)
8.2 Setting Control Type (CNT)
Summary of Contents for UP35A
Page 3: ......
Page 15: ...Blank Page...
Page 35: ...Blank Page...
Page 37: ...Blank Page...
Page 47: ...Blank Page...
Page 229: ...Blank Page...
Page 251: ...Blank Page...
Page 317: ...Blank Page...
Page 387: ...Blank Page...
Page 409: ...Blank Page...
Page 411: ...Blank Page...