Control Outputs - Brainchild C21 User Manual

process value
INHI
PV
INLO
SL
Formula : PV = INLO + ( INHI INLO ) Formula : PV = INLO + ( INHI INLO )
Example : A 4-20 mA current loop pressure transducer with range Example : A 4-20 mA current loop pressure transducer with range
0 - 15 kg/cm is connected to input, then perform the 0 - 15 kg/cm is connected to input, then perform the
following setup : following setup :
INPT = 4 - 20 INPT = 4 - 20
INHI = 15.00 INHI = 15.00
Of course, you may select other value for DP to alter the Of course, you may select other value for DP to alter the
resolution. resolution.

3-3 Control Outputs

3-3 Control Outputs
There are 4 kinds of control modes can be configured as shown in
Table 3.1 Table 3.1
Table 3.1 Heat-Cool Control Setup Value Table 3.1 Heat-Cool Control Setup Value
Control
Modes
Heat only
Cool only
Heat: PID
Cool: ON-OFF
Heat: PID
Cool: PID
: Don't care
:Adjust to met process
requirements
input signal
S SH
2
INLO = 0.00 INLO = 0.00
DP = 2-DP DP = 2-DP
OUT1 OUT2
REVR
DIRT
REVR DE.HI
REVR COOL
Figure 3.1 Figure 3.1
Conversion Curve for Conversion Curve for
Linear Type Process Value Linear Type Process Value
S SL S SL
SH SH SL SL
O1HY O2HY
:Required if ON-OFF control
is configured
UM0C911A
CPB DB
34