5 - 14
Microprocessor Controls
Liebert CRV - PD - 265086 - 11.01.2018
5.1 iCOM Control
Liebert CRV models are controlled by iCOM Medium Board
(Fig. 5.a).
The control board is housed in the electrical panel and it is
connected to the remote display, to be installed in the contain-
er/room (connection cable is included).
•
The standard user interface is a graphical display (128 x
64 pixels, backlit) showing parameter values and the rele
-
vant symbols/codes in a tree menu. It features navigation
push-buttons and status leds.
Self-explanatory icons are used for the menu-layout of
the display.
•
Status Report of the latest 400 event-messages of the
unit.
•
Graphic Data Records for temperature and humidity
•
Both high and low priority alarms activate a visual indica-
tor and buzzer.
•
Input for remote on-off and volt-free contacts for simple
remote monitoring of low and high priority alarms: high/
low temperature, high/low refrigerant pressure, fan/con-
trol failure, compressor/control failure and others are available.
•
LAN management: functions provided as standard include stand-by (in case of failure of the unit in
operation, the second one starts automatically), and automatic rotation.
•
All settings are protected through a 3-Level password system (*).
•
Automatic restart is provided after a power failure.
Tab. 5a - Technical Data
5
Technical Data
iCOM Medium
E2prom
4Mbit + 512kbit
Flash memory
32Mbit
RAM memory space
128Mbit
Microcontroller
Coldfire 32Mbit
Analogue Input
3 x 0-10V,0-5V,4..20mA (selectable) + 2 PTC/NTC + 3 NTC
Digital Input
9 x opto-coupled
Analogue Output
2 x 0-10V
Digital Output
7 triacs output and 2 relay output
Time and date function buffered by LI-battery
Hirobus Lan connectors
2 RJ45 sockets (for unit in LAN, remote display)
Ethernet network connectors 1 RJ45 socket
CAN bus connectors
2 RJ12 sockets
Hironet connectors
1 RJ9 socket for RS485 (direct connection to proprietary supervision)