WEST 8800 Operating Manual page 37

Process controller
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Name
Value range Description
Src. 3
HC. A L
LP. A L
dAc. A
Hour
OFF...999999
Swit
OFF...999999
Out. 1
Name
Value range Description
O. A ct
Y. 1
8800 process controller
Source of limit 3
0
process value
1
control deviation xw (process value - set-point)
2
control deviation xw (with suppression after start-up and
set-point change)
After switch-on or set-point changing, the alarm output is
suppressed, until the process value is within the limits for the
first time. At the latest after elapse of time 10 ti1 the alarm
is activated (ti1 = integral time 1; parameter r Cntr)
If ti1 is switched off (ti1 = 0), this is interpreted as Î ,
i.e. the alarm is not activated, before the process value was
within the limits once.
3
measured value INP1
4
measured value INP2
5
measured value INP3
6
effective setpoint Weff
7
correcting variable y (controller output)
8
control variable deviation xw (actual value - internal setpoint)
= deviation alarm to internal setpoint
9
difference x1 - x2 (utilizable e.g. in combination with process
value function "mean value" for recognizing aged
thermocouples
Alarm heat current function (INP2)
0
switched off
1
Overload short circuit monitoring
2
Break and short circuit monitoring
Monitoring of control loop interruption for heating
0
switched off / inactive
1
active.
If ti1=0 LOOP alarm is inactive!
DAC alarm function
0
DAC alarm switched off / inactive
1
DAC alarm active
Operating hours (only visible with 8800/8840 configurator!)
Output switching cycles (only visible with 8800/8840
configurator!)
Method of operation of output OUT1
0
direct / normally open
1
inverse / normally closed
Controller output Y1
0
not active
1
active
37
Configuration level
Configuration parameters
Default
0
0
0
0
OFF
OFF
Default
0
1

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