Exhausto EXact2 VEX240 series, Basic Instructions

Page: 69 / 108

Pressure transmitter 3
Unit
Fault code
Category
Alarm description
Troubleshooting
(See appendix 1: "Simplified diagrams" for the location of dampers, sen-
sors, air directions, etc.)
xx yy z
06 01 4 No modbus communi-
cation to pressure
transmitter ● Check the modbus cable between the connection board (EX-
act)/main board (EXact2) and MPT3.
● Check modbus cable for faults from MPT3 to the other units
06 02 4 Calibration fault ● Re-calibrate
● If the problem continues, MPT3 must be replaced
06 03 1 Calibrate pressure
transmitter Calibrate MPT3
06 04 1 Pressure transmitter
using old calibration
values When the unit starts up this information is displayed. It does not
necessarily mean that the pressure transmitter has to be calibra-
ted.
● Check if the MPT is out of calibration in menu 8.4 and recali-
brate if required
06 05 4 Pressure transmitter
not calibrated ● Set the VEX/CX to "OFF" in the user menu and open the
doors. Next calibrate the MPT in menu 8.4.
Pressure transmitter 4
Unit
Fault code
Category
Alarm description
Troubleshooting
(See appendix 1: "Simplified diagrams" for the positioning of dampers,
sensors, air directions, etc.)
xx yy z
07 01 4 No modbus communi-
cation to pressure
transmitter ● Check the cable between the connection board and MPT4
● Check modbus cable for faults from MPT4 to the other units
07 02 4 Calibration fault ● Re-calibrate
● If the problem continues, MPT4 must be replaced
07 03 1 Calibrate pressure
transmitter Calibrate MPT4
07 04 1 Pressure transmitter
using old calibration
values When the unit starts up this information is displayed. It does not
necessarily mean that the pressure transmitter has to be calibra-
ted.
● Check if the MPT is out of calibration in Menu 8.4 and recali-
brate if required
07 05 4 Pressure transmitter
not calibrated ● Set the VEX to "OFF" in the user menu and open the doors.
Next calibrate the MPT in Menu 8.4.
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Alarms
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