Yamatake SDC35, User Manual

Page: 64 / 280

5-6
Chapter 5. DETAILED DESCRIPTION OF EACH FUNCTION
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PV input range low limit/high limit
When the PV input range type is DC voltage or DC current, the scaling of the PV
input can be set.
• When the PV input range type is thermocouple or RTD, the setting item can be
displayed, but the setting cannot be made.
• When the PV input range type is DC voltage or DC current, the display and
setting can be made.
The following describes the relationship between the PV input and PV when
setting up the range low limit and high limit:
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PV ratio and PV bias
The PV ratio and PV bias can be set to compensate the PV.
• Details of PV ratio and PV bias controls
Assuming that the control input is PVin, control result is PVout, PV ratio is RA,
and PV bias is BI, the following control formula is obtained:
PVout = (PVin X RA) + BI
Item (Bank) Display Contents Initial value User level
PV input range low limit
(Setup bank) When the PV input range type is DC voltage
or DC current, the following contents apply:
-1999 to +9999 (no decimal point)
-199.9 to +999.9 (1 digit after decimal point)
-19.99 to +99.99 (2 digits after decimal point)
-1.999 to +9.999 (3 digits after decimal point)
When the PV input type is thermocouple or
RTD, the range low limit and high limit values
selected using the PV input range type are
used. 0 Basic,
Standard,
High function
PV input range high limit
(Setup bank) 1000