Walther WTRB-24DC-3500 Operating Manual page 31

Rev. 1.0
Limit Monitoring (Li1, Li2)
The device has two functions for limit value monitoring (Li 1, Li 2) with eight different alarm functions (AF1 to
AF8) each. Both outlet signals are available in the binary functions.
ConF -> L1,L2 ->
Parameter
Alarm function
FnCt
Limit value
AL, AL2
Switch differential
HySt
Behavior for Out-of-Range / Sym-
metry of limit value
ACrA
Behavior for Out-of-Range / Sym-
metry of limit value
ACrA
Turn-on delay
tOn
Actual value
AFPr
Desired value
AFSP
WALTHER Temperature Controller Bundle WTRB-x-x
Value Description
0 Limit value monitoring turned off
AF1: limit value above and below the desired value (moni-
1
toring tape); symmetrical or unbalanced
2 AF2: as AF1, outlet signal inverted
3 AF3: limit value below desired value
4 AF4: as AF3, outlet signal inverted
5 AF5: limit value above desired value
6 AF6: as AF5, outlet signal inverted
7 AF7: fixed limit value (separate from desired value)
8 AF8: as AF7, outlet signal inverted
-1999 ... Limit value to be monitored when limit value is unbal-
0 ... anced: AL is below desired value, AL2 above desired
+9999 value. Limit value range for AF1 and AF2: 0 ... 9999
0 ... 1 ...
Switch differential for limit value
9999
0 Off / symmetrical (only AL active)
1 On / symmetrical (only AL active)
2 Off / unbalanced (AL and AL2 active)
3 On / unbalanced (AL and AL2 active)
Switching status for exceeding or falling short is measur-
ing range (Out-of-Range) / Symmetry for alarm functions
AF1, AF2
0 ... 9999
Turn-on delay of outlet signal (in seconds)
Signal to be monitored; 2 = actual value  "Analog Se-
2
lector", page 15
3 Desired value for limit value monitoring (reference signal
for AF1 to AF6); 3 = current desired value
Walther Systemtechnik GmbH – D 76726 Germersheim
Telefon: +49 (0)7274-7022-0 Telefax: +49 (0)7274-7022-91
http://www.walther-2000.de – info@walther-2000.de
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