WIKA DI25 Betriebsanleitung Seite 19

6. Operation
Operation
6.1
After the DI25 is mounted to the control panel and wiring is completed, operate the unit following the procedure
below.
(1) Turn the power supply to the DI25 ON. For approximate 3 sec after the power is switched ON, the input
characters and the temperature unit are indicated on the PV Display, and input range high limit
(thermocouple, RTD input) or scaling high limit (direct current, DC voltage input) is indicated on the SV display.
See (Table 5-1) (p.10).
During this time, all outputs and LED indicators are in an OFF status. After that, indication starts, indicating
PV on the PV display, and A1, A2 or A3 value on the SV display.
(2) Enter each set value, referring to section "5. Setup".
Switching SV display indication
6.2
To change indication on the SV display, press the UP and MODE keys (in that order) together in the PV/SV
display mode. The next alarm value (of the currently indicated A1-A3 value) will be displayed.
If the UP and MODE keys (in that order) are pressed together at [A3 value indication], the unit reverts to [A1
value indication].
Indication
PV
A1 value indication
A1 value
Indicates A1 value on the SV display, and the A1 value indicator is lit. Not available if no alarm
action is selected in [A1 type].
PV
A2 value indication
A2 value
Indicates A2 value on the SV display, and the A2 value indicator is lit.
Not available if no alarm action is selected in [A2 type].
Not available if insulated power output (P24 option) is ordered.
PV
A3 value indication
A3 value
Indicates A3 value on the SV display, and the A3 value indicator is lit.
Not available if no alarm action or
How to use the alarm output
6.3
(e.g.) To use A1 output, follow the procedure below.
Select an A1 type in [A1 type] (p.14) in auxiliary function setting mode 2.
1.
Set the following items in auxiliary function setting mode 2 if required:
2.
A1 Energized/De-energized (p.15), A1 hysteresis (p.15), A1 delay time (p.16), A1 HOLD function (p.17)
Set the A1 value in [A1 value (p.14)] in alarm setting mode.
3.
A1 output settings are complete. The same applies to A2 and A3 output.
How to use the event input function
6.4
(e.g.) To use Peak HOLD of the event input function, follow the procedure below.
Select Peak HOLD in [event input function (p.17)] in auxiliary function setting mode 2.
1.
The updated maximum PV is indicated by closing event input terminals (14, 17).
2.
The Peak HOLD function is cancelled by opening event input terminals (14, 17).
Setting item, function
high/low limit range alarm
19
is selected in [A3 type].