Super Systems 7EK 31081 - Manual (Page 16)

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NOTE: the minimum input span (S = P4 - P3), in absolute
value, should be set as follows:
- For linear inputs, S > 100 units.
- For TC input with °C readout, S > 300 °C.
- For TC input with °F readout, S > 550 °F.
- For RTD input with °C readout, S > 100 °C.
- For RTD input with °F readout, S > 200 °F.
P5 = Output 1 function
rEv
= Out 1 used as control output with reverse action
(heating).
dIr = Out 1 used as control output with direct action
(cooling).
Pv.rt = Out 1 retransmits the process variable.
SP.rt = Out 1 retransmits the operative set point.
P6 = Output 1 type
0-20 = output 1 type 0 - 20 mA
4-20 = output 1 type 4 - 20 mA
P7 = Retransmission - Initial scale value
P7 is available only when P5 = Pv.rt or SP.rt.
Range: from -1999 to 4000.
P8 = Retransmission - Full scale value
P8 is available only when P5 = Pv.rt or SP.rt.
Range: from -1999 to 4000.
P9 = Output 2 function.
nonE
= output not used.
rEv = Out 2 is used as control output with reverse
action (heating).
24 = TC type N range -150 / +2550 °F
25 = TC type R range 0 / +3200 °F
26 = TC type S range 0 / +3200 °F
27 = RTD type Pt 100 range -199.9 / +400.0 °F
28 = RTD type Pt 100 range -330 / +1470 °F
NOTE: selecting P1 = 0, 2, 4, 6, 10 or 27, the instrument
set automatically P44 = P45 = FLtr. For all the remaining
ranges it will set P44 = P45 = nOFL.
P2 = Decimal point position
This parameter is available only when a linear input is
selected (P1 = 12, 13, 14, 15, 16, 17, 18 or 19).
----.
= No decimal figure. ---.-
= One decimal figure. --.--
= Two decimal figures.
-.---
= Three decimal figures.
P3 = Initial scale value
For linear inputs it is programmable from -1999 to 4000.
For TC and RTD input it is programmable within the input
range.
Notes:
1) When this parameter is modified, rL parameter will be
re-aligned to it.
2) If a linear input is selected, the value of this parameter
can be greater than P4 in order to get a reverse
readout.
P4 = Full scale value
For linear inputs it is programmable from -1999 to 4000.
For TC and RTD inputs, it is programmable within the
input range.
Notes:
1) When this parameter is modified, rH parameter will be
re-aligned to it.
2) If a linear input is selected, the value of this parameter
can be smaller than P3 in order to get a reverse
readout.
The initial and full scale values determine the input span
which is used by the PID algorithm, the SMART and the
alarm functions.
REVERSE ACTION DIRECT ACTION
t
Input
t
Output
t
Input
t
Output
31081-1-00.p65 3/24/00, 11:59 AM 11