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5 Advanced Operations
E5@C-T Digital Temperature Controllers User’s Manual (H185)
5-12 Using the Transfer Output
5
5-12-1 Transfer Output Function
z Transfer Scaling
• Reverse scaling is possible by setting the Transfer Output Lower Limit parameter larger than the
Transfer Output Upper Limit parameter. If the Transfer Output Lower Limit and Transfer Output
Upper Limit parameters are set to the same value, the transfer output will be output continuously
at 0%.
• If the present SP or PV is selected, the Transfer Output Upper Limit and Transfer Output Lower
Limit parameters will be forcibly initialized to the respective upper and lower setting limits if any of
the following parameters is changed: Input Type, Scaling Upper Limit, Scaling Lower Limit, Set
Point Upper Limit, Set Point Lower Limit, or Temperature Unit.
If the MV for heating or MV for cooling is selected, the Transfer Output Lower Limit and Transfer
Output Upper Limit parameters will be initialized to 100.0 and 0.0, respectively, when a switch is
made between standard control and heating/cooling control using the Standard or
Heating/Cooling parameter.
• The output current when transfer output signal is set to 4 to 20 mA, the transfer output upper limit
is set to 90.0, and the transfer output lower limit is set to 10.0 is shown in the following graph.
• For scaling from 0.0% to 100.0%, the output for −5.0 to 0.0 will be the same value as for 0.0%, and
the output for 100.0 to 105.0 will be the same value as for 100.0%
20
1009010
4
0
Output current (mA)
MV (%)
Transfer output
lower limit
Transfer output
upper limit
(The above graph is for when transfer output signal is set to 4 to 20 mA.)
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