9.14 Excessive temperature shut-down test
The machine should shut down if the airend discharge temperature (ADT) reaches a maximum of
230°F.
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
95°F
displayed in activated test mode refers to the discharge temperature
of
163°F
as shown in the example.
Precondition Allow the machine to warm up. Shut down the machine as soon as the discharge temperature
(VET) has stabilized.
Machine has cooled down by approx. 41°F (from discharge temperature of warmed up machine)
Password access level 2 is activated.
1. Open the menu 9.1
<Machine test – Inspections>
.
2. Using the «Up» or «Down» key, select the line
ADT
.
8 8 p s i 0 8 : 1 5 A M 1 7 6 ° F
Header
9.1 Inspections
Menu
Safety valve : ☐
pRV: 232psi ¦ pi ⇞ 0.0psi
Safety relief valve actuating pressure (FLUID)
Reset : ☐
·········
ADT ⇞ : ☐
Active line with check box
Offset 32°F ¦ ADT ⇞ 32.0°F
3. Press «Enter».
The
ADT ⇞
check box flashes.
4. Press the «Up» key.
The check box is activated.
9 Operation
9.14 Excessive temperature shut-down test
No.: 9_9450 13 USE
User Manual Controller
SIGMA CONTROL 2 SCREW FLUID ≥5.1.2
193
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