9.13 Excessive temperature shut-down test
The machine should shut down if the airend discharge temperature (ADT) reaches a maximum of
110°C.
SIGMA CONTROL 2 will simulate a higher temperature for checking this function.
For this purpose, SIGMA CONTROL 2 automatically determines an offset value to be displayed.
During the test mode, this offset is added to the actual airend discharge temperature to cause the
machine to shut down prematurely.
No warning message is generated. However, the corresponding fault message "0015Airend
discharge temperature ADT ⇞" switches off the machine once the maximum discharge tempera‐
ture is reached.
Overview
■ Allow the machine to warm up, then shut it down and allow it to cool down slightly
■ Performing the inspection
■ Correct conclusion of the test
■ Resetting
Performing the inspection
The offset value of
35.0°C displayed in activated test mode refers to the discharge tempera‐
ture of
73°C as shown in the example.
Precondition Allow the machine to warm up. Shut down the machine as soon as the discharge temperature
(VET) has stabilised.
Machine has cooled down by approx. 5°C (from discharge temperature of warmed up machine)
Access level 2 is activated.
1. Open the menu 9.1
<Machine test – TÜV inspection>.
2. Using the «Up» or «Down» key, select the line
ADT.
6 . 1 b a r
0 8 : 1 5 A M
8 0 ° C
Header
9.1 TÜV inspection
Menu
Safety valve
: ☐
pRV:
16.0bar ¦ pi ⇞
0.0bar
Safety valve actuating pressure (FLUID)
Reset :
☐
·········
ADT ⇞
: ☐
Active line with check box
Offset
0°C ¦ ADT ⇞
0.0°C
3. Press «Enter».
The
ADT ⇞ check box flashes.
4. Press the «Up» key.
The check box is activated.
9
Operation
9.13 Excessive temperature shut-down test
No.: 9_9450 12 E
User Manual Controller
SIGMA CONTROL 2 SCREW FLUID ≥5.0.X
193
