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PVMD=P1-2 or P2-1
SPMD=SP1.2
The response of PV2 will be parallel to PV1 as shown in the following diagram
The PV display will indicate PV1-PV2 value if P1-2 is chosen for PVMD or PV2-PV1 value if P2-
1 is chosen for PVMD. If the user needs PV1 or PV2 to be displayed instead of PV, they can use the
Display Mode to select PV1 or PV2 to be viewed. If PVMD selects P1-2 or P2-1, while SPMD selects PV1 or
PV2, an Error Code will appear. In this case the signals used for input 1 and input 2 should be the same unit
and same decimal point, that is, IN1U=IN2U, DP1=DP2, otherwise Error Code will appear.
5.2.4.19 Output Power Limit
In certain system the heater (or cooler) is over-designed such that the process is too heavily
heated or cooled. To avoid an excessive overshoot and/or undershoot the user can use the Power Limit
function. Output 1 power limit PL1 is contained in Configuration. If output 2 is not used for cooling (that is
COOL is not selected for OUT2), then PL2 is hidden. If the controller is used for ON-OFF control, then both
PL1 and PL2 are hidden
Example:
OUT2=COOL, PB1=10.0°C, CPB=50, PL1=50, PL2=80 the output 1 and output 2 will act as
following curves
NOTE:
The adjusting ranges of MV1 (H) and MV2 (C) for manual control and/or failure transfer are not
limited by PL1 and PL2.
5.2.4.20 Digital Filter
In certain application the process value is too unstable to be read. To improve this
programmable low pass filter incorporated in this Process Control Card can be used. This is a first order
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