West Control Solutions TB 45 Temperature Limiter - Manual (Page 34)

Name Value range Description
Corr Measured value correction / scaling:
When using current, voltage orr (version-dependent) resistance signals as input va-
riables, scaling at parameter level is possible. Specify the input value of the lower
and upper scaling point in units of the relevant electrical quantity (mA / V/ Ohm).
0 No correction
1 The offset correction (at CAL level) is possible on-line at the process. If InL shows the
lower input value of the scaling point, OuL must be set to the relevant display value.
Adjustment is via the instrument front panel.
2 2-point correction (at CAL level) is possible off-line by means of a process value
transmitter. Specify the process value for the lower and the upper scaling point and
confirm it as input value InL or InH. Now, adjust the relevant display value OuL or
OuH. Adjustment is via instrument front panel operation.
3 Scaling (at PArA level) for current and voltage signals as input variables also for re-
sistance signals dependent on version). The input and display value values for lower
(InL, OuL) and upper scaling point (InH, OuH) are visible at parameter setting level.
Adjustment is via instrument front panel operation, or via the engineering tool.
Limit values LC, Lim2, Lim3
Name Value range Description
Fnc.1 Function of main alarm LC
0 switched off
1 Measured value monitoring. When exceeding the limit value, an alarm is output and
reset automatically, when the measured value is "within the limits" (including hyste-
resis) again.
2 Measured value monitoring + alarm status latch . A stored limit value can be reset by
pressing the RESET key or via the digital input (
→ LOGI/ Err.r).
5 Temperature monitor function for exceeded high limit value. As opposed to the tem-
perature limiter function, the limit value is not stored.
6 Temperature monitor function for exceeded low limit value. As opposed to the tempe-
rature limiter function, the limit value is not stored.
7 Temperature limiter fo r high limit value: measured value monitoring + high limit value
alarm status latch. A stored limit value can be reset via a digital input or by pressing
the RESET key (-> LOGI/Err.r).
8 Temperature limiter fo r low limit value: measured value monitoring + low limit value
alarm status latch. A stored limit value can be reset via a digital input or by pressing
the RESET key (-> LOGI/Err.r).
Fnc.2
(Fnc.3)
Function of pre-alarm 2 / 3
0 switched off
1 Measured value monitoring
If a limit is exeeded an alarmsignal is executed. It becomes resetted automatically,
when the measured value has returned to the "acceptable" range (including hystere-
sis).
2 Measured value monitoring + alarm status latch. A stored limit value can be reset via
error list or a digital input (
→ LOGI/ Err.r).
Src.2
(Src.3)
Source for pre-alarms 2 /3
0 Process value = absolute alarm
1 Process value - limit value LC = relative alarm
3 Measured value of the analog input INP1
C.Std OFF; 1 …
9999999
Monitoring operating hour (only visible with BlueControl!)
C.Sch OFF; 1 …
9999999
Monitoring duty cycle (only visible with BlueControl!)
Configuration level
34 Configuration TB 45