Control Settings Menu - GEA Grasso Manual

Grasso
Refrigeration Division
Unloaded start
Motor feedback
Auto start dly
<< Actual values 01 >>
Step time
Limit time
Run hours
<< Actual values 01
1.2.3.2

Control settings menu

10 Control settings
Set Point 1
Set Point 2
Active SP
<< Control 01
Active SP
Neutral zone
Prop zone
<< Control 01
Step times min |
Cap inc |
Cap dec |
<< Control 01
Auto start dly
Pump down
Stop pressure
<< Control 01
Boost press
Cor P-zone
Derative fact
<< Control 01
Chap. 1 - 8
Unloaded start:
Motor feedback: Remaining time for motor running feedback signal from
Auto start dly:
Step time:
Limit time:
Run hours:
Set Point 1:
Set Point 2:
Active SP:
>> The active set point value is displayed. 2 different set point values can be
entered via the display. The switchover takes place due to a potential free
contact or due to MPI/Profibus-DP communication.
Furthermore, an external set point (analogue input or MPI/Profibus-DP
signal) can be activated. This switchover takes place due to the selected
operation mode in the menu "Operating mode"
Active SP:
Neutral zone:
Prop zone:
>>
max Cap inc min:
Cap inc max:
Cap dec min:
>> Cap dec max:
Auto start dly:
Pump down:
Stop pressure:
>>
Boost press:
Cor P-zone:
Derative fact:
638660E_chapter1.doc
Remaining time for unloaded start in secs
compressor drive motor starter
Remaining time for automatic start delay in secs
Remaining time for next capacity step in secs
Remaining time for the capacity limitation in secs
Number of operating hours
First Set Point for the controlled parameter °C
Second Set Point for the controlled parameter °C
Active Set Point in °C
Active set point in °C
Neutral zone of the automatic capacity regulation in K
Proportional zone of the automatic capacity regulation in
K
Minimal step time for increasing the capacity in secs
Maximal step time for increasing the capacity in secs
Minimal step time for decreasing the capacity in secs
Maximal step time for decreasing the capacity in secs
Time for automatic start delay in secs
Selection between "with" or "without" pump down
If pump down is activated, the compressor does not stop
before the suction pressure reaches this value in bar (a)
Booster pressure in bar (a) .
Correction value of the proportional zone in K for
decreasing the capacity (+ towards the set point / - away
from set point)
Maximum temperature difference in K allowed within 5
seconds otherwise the capacity will be changed
immediately (0 = derative function deactivated)
GRASSO SYSTEM CONTROL
.
01.2004/1