Mitsubishi Electric s-MEXT-G00 006 Technical Manual page 6

Computer room air conditioner
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TM_s-MEXT_ME28relC_00_12_19_EN
20.8.1
Preliminary considerations .............................................................................................................................................................................................. 118
20.8.2
Management algorithm ................................................................................................................................................................................................... 118
20.8.3
Examples......................................................................................................................................................................................................................... 118
20.8.4
Consequences of the alarm ............................................................................................................................................................................................ 120
20.9
REACTIONS TO ALARMS WITHIN THE LAN NETWORK ................................................................................................................................................... 120
20.9.1
Missing Air Flow alarm event .......................................................................................................................................................................................... 120
20.9.2
Gas Leak Detected alarm event ..................................................................................................................................................................................... 120
20.10
SHARED USER TERMINAL ................................................................................................................................................................................................... 121
20.10.1
Connecting the remote keyboard .................................................................................................................................................................................... 121
20.10.2
"T" shunt .......................................................................................................................................................................................................................... 121
20.10.3
Remote keyboard up to 200 metres ............................................................................................................................................................................... 122
20.10.4
Remote keyboard from 200 metres up to 500 metres .................................................................................................................................................... 122
20.10.5
Remote keyboard for more than one unit ....................................................................................................................................................................... 122
21
ANNEXES ....................................................................................................................................................................................................................................... 123
21.1
PID ADJUSTER CONTROL PARAMETERS ......................................................................................................................................................................... 123
21.1.1
Proportional Action .......................................................................................................................................................................................................... 123
21.1.2
Integral Action ................................................................................................................................................................................................................. 123
21.1.3
Derivative Action ............................................................................................................................................................................................................. 124
21.1.4
The combined effect of the three actions ....................................................................................................................................................................... 124
21.1.5
Anti-Windup control (control of integral error) ................................................................................................................................................................. 124
21.2
DEFINITION OF THE HUMIDIFIER'S CONFIGURATION PARAMETER ............................................................................................................................. 125
Description of the symbols
A number of symbols are used to highlight some parts of the text that are of particular importance. These are described below.
ATTENTION
Indicates situations of grave danger which, if ignored, can seriously endanger the health and safety of people.
OBLIGATION
Indicates that it is necessary to act in an appropriate manner in order not to put at risk the health and safety of people and not cause financial
damage.
INFORMATION
Indicates technical information of particular importance which should not be neglected.
Technical manual
TRANSLATION OF THE ORIGINAL INSTRUCTIONS
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