Application guidelines
28
FRCC.PC.021.A5.22
Data management
Traceability data
Operation parameter recording
In order to ensure traceability the information
below are pre-set
• compressor serial number CSN
• Software version
• Board reference
• Board serial number
• Temperature unit (in °F by default)
• Pressure unit
The following parameters are recorded for the 3 last years:
The OCS is able to record data for operating
checking, maintenance, inspection. Data can
be displayed by Modbus, CAN-Bus or MMIMYK/
MMIGRS interfaces.
There are 4 types of data available:
• Traceability data
• Operation parameter recording
• Alarms, warnings and events
• Event counter
Alarms regarding motor protection and
operating envelope monitoring are displayed.
Data storage displayed by
OCS
Alarms, warning and events
Event counter
MMIMYK and MMIGRS
Electronic controllers
A buffer storage for alarms, warning and events
will follow First-In First-Out (FIFO) rules. A total
capacity of 3000 lines is available.
A definite storage file running as a counter will
record the following data:
• Each alarm
• Each event
• Surface sump heater on/off
• Compressor on/off
• Liquid injection valve closing
The storage period is minimum 3 years for each
data.
MMIGRS and MMIMYK are electronic user interfaces used to communicate with OCS.
MMIGRS is a remote LCD screen display. It
allows reading of variable data and parameters
(instantaneous values).
MMIGRS address is NodeID 126 by default.
MMIGRS panel mounting accessory is available
(refer to accessories list for code number).
For MMIGRS instructions, see document:
DKRCC.PI.RJO.C2.1U
Parameters
Abbreviation
Value frame
Indicative Range
Unit
Condensing pressure
Pc
00,0
0-50
Bar or gauge
Evaporating pressure
Pe
00,0
0-30
Bar or gauge
Discharge
temperature
DGT
000
-31 / +338°F
°F
Surface sump heater
SSH
0 for OFF - 1for ON
0-1
NA
Clock
NA
YY/MM/DD_HH:MM:SS
NA
NA
Liquid injection valve
opening degree
OD
00,0
0-100
% PID regulator Data
(valve opening)
Compressor On
Cpr
0 for OFF – 1 for ON
0-1
NA
