P-Lan; M-Net - Mitsubishi Electric MULTIDENSITY 009 Manual De Instalación, Uso Y Mantenimiento

MULTIDENSITY
An additional CNEM-24 connector will be delivered with the unit in order to connect to the
CNEF-24 socket
*A signal cables
It is recommended that any auxiliary connection cables are separate from power cables.
Otherwise, screened cables should be used.
All the connections available on the CNEM-24 connector will also be available on the
electrical panel terminal block:
1 - 2: POWER SUPPLY 24VAC
30-36: POWER SUPPLY 24VDC SMOKE/FIRE SENSOR (36 " + " , 30 " - " )
30-35: EXTERNAL ABILITATION (NO)
20-22: INLET AIR TEMPERATURE PROBE 1
20-23: OUTLET AIR TEMPERATURE PROBE 1
45-48: WATER FLOOD SENSOR
40-46: INLET AIR TEMPERATURE PROBE 2
40-47: OUTLET AIR TEMPERATURE PROBE 2
70-73: CLOGGED FILTER SWITCH
52-58: LOW PRESSURE TRANSDUCER
2-130: ELECTRICAL HEATERS THERMOSTAT
230- GENERAL ALARM 1 (NO)
240- GENERAL ALARM 2 (NO)
UM_MULTIDENSITY_00_Z_09_20_ML
TERMINALS
*B power cables
70-71: ALARM CONTACT SMOKE/FIRE SENSOR (NC)
50-59: SUCTION GAS TEMPERATURE PROBE
140-141- PLAN CONNECTION (140 "-", 141 "+", 142 "GND")
190-191- MODBUS CONNECTION (190 "-", 191 "+", 192 "GND")
L6-
POWER SUPPLY CONDENSE DRAIN PUMP
2.5.3

P-LAN

The connection of the units (that is, the PCO boards fitted on each unit) in the Plan network
allows the following functions to be performed:
• balance the operating hours between the air-conditioners by rotation of the standby
unit.
• start the standby unit if the other unit shuts down due to a serious alarm or
blackout.
• start the standby unit to provide for excessive thermal load.
• control up to 10 air-conditioners from just one user terminal (shared user terminal)
• operation of all the air-conditioners based on the average of the temperature and
humidity values read by the probes on the air-conditioners that are operating at that
moment
1. A local network connection allows management of several air-conditioners operating
on site.
2. A maximum of 10 units can be connected together.
3. The maximum extension of the network connections is 500 metres.
4. All units connected to a network must have the same program version and revision
loaded in the Flash Memory on the control board.
5. A terminal can be configured as "private" or "shared":
-
a private terminal can display the operating status only of the unit it is
connected to via telephone cable;
-
a shared terminal can display the operating status of all the units connected
in the network.
6. Each board can "talk" to a maximum of 3 terminals; in common applications,
generally no more than two are used: one fitted on the unit and another optional
remote terminal.
The LAN connection in Multidensity units is mandatory for the management of the system.
In Multidensity systems, the p-LAN connection allows for the exchange of data among all
internal units. By processing the shared data and measurments, the cooling request is then
sent to the external unit (or units) for a better functioning of the system.
2.5.4

M-NET

M-NET is a networked system used to control air conditioner operations.
Outdoor units and indoor units are connected to M-NET through the "outdoor/indoor"
transmission line.
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English
ORIGINAL INSTRUCTIONS