7. SETUP SETTING MODE
IMR01N12-E7
45
PV low input cut-off (1. PLC, 2. PLC)
PV low input cut-off is used with Square root extraction function. The measured value less than the PV low
input cut-off is ignored to prevent control disturbance caused by input variation at low measured value range.
Data range:
0.00 to 25.00 % of input span
Factory set value:
Input 1_PV low input cut-off: (1. PLC): 0.00
Input 2_PV low input cut-off: (2. PLC): 0.00
Related parameters:
Square root extraction selection (P. 72)
PV low input cut-off function:
When
input signal square root extraction is used for in flow control, etc., the Square root
extraction result varies widely at the low measured value range. The measured value less
than the PV low input cut-off is ignored to calculate control output in order to prevent
control disturbance caused by input variation at low measured value range.
Proportional cycle time (1. T, 2. T)
Proportional cycle time is to set control cycle time for time based control output such as voltage pulse for SSR,
triac and relay output.
Data range:
0.1 to 100.0 seconds
Factory set value:
Input 1_ proportional cycle time (1. T):
Relay contact output:
20.0 seconds
Voltage pulse output and triac output: 2.0 seconds
Input
2_ proportional cycle time (2. T):
Relay contact output:
20.0 seconds
Voltage pulse output and triac output: 2.0 seconds
The Proportional cycle time becomes invalid when the Voltage/Current output is selected as control
output type.
100 %
70.7 %
50 %
Output
Input
100 %
50 %
25 %
When set value of the PV low input cut-off is 15 %
0 %
When set value of
the PV low input
cut-off is 0 %
