OJ Electronics GreenZone Module MP-Bus Instruktionen Seite 6

English OJ GreenZone™ Module MP-Bus
Connectors "A-D" – MP-Bus actuators (see figs 3, 14, 14A, 16 & 16A)
MP-Bus actuators are connected by means of screw terminals. MP-Bus actuators and
VAV damper motors can be connected and freely distributed among the four MP-Bus
connectors. The maximum distance between OJ GreenZone™ Module MP-Bus and the
actuators is 30 m. All actuators must be put into to one of the MP-bus addresses in the
above table. All actuators must have different addresses. Address 4 and 5 cannot be
used together with address 6 or 7.
MP-Bus address and communication parameters are set in Belimo actuators using the
Service-Tool ZTH-EU programming unit from Belimo. Instructions for setting MP-Bus
addresses in Belimo actuators can be found at www.belimo.eu
MP-Bus VAV Dampers
OJ GreenZone™ Module MP-Bus can control three VAV dampers: one VAV damper in
the extract duct and two VAV damper in the supply duct. Supply VAV damper must have
MP-Bus address 2 and 3. Extract VAV damper must have MP-Bus address 1.
MP-Bus valve motors for heating and cooling systems
OJ GreenZone™ Module MP-Bus can control two MP-Bus valve motors: one valve mo-
tor for a heating element and one valve motor for a cooling element, both located in the
inlet duct. Alternatively it can control either a combination valve motor (heating/cooling)
or a 6 way valve motor. The heating valve must have MP-Bus address 4 and the cooling
valve must have address 5. The combination valve must have MP-bus address 6 and
the 6 way valve address 7.
Connection of temperature sensor in inlet duct (see figs 3 & 15)
It is possible to connect a sensor located in the inlet duct. The actual value recorded by
the sensor is shown on the zone's webpage. The temperature is used to control inlet
temperature.
NOTE! The sensor must be of PT1000 type.
• The sensor should be connected to terminals 30 & 31 (see fig. 15).
Display "G" (see figs 3 and 17)
OJ GreenZone™ Module MP-Bus is equipped with a 2-digit display (fig. 3, pos. "G").
The display indicates various things as shown in table 3 below.
The display alternates (flashes) between the activated functions and readouts.
Example:
If the OJ GreenZone™ Module MP-Bus is configured as follows:
• Connected to OJ GreenZone™ Master 1
• Allocated zone 13 by OJ GreenZone™ Master
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