Exhausto EXact2 VEX240 series, Basic Instructions

Page: 86 / 108

External cooling unit (MXCU) control
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
28 01 1 Module configured in-
correctly. Check CN6
on circuit board ● Check jumper in CN6 connector on cooling control circuit
board. There must be a jumper across 4 and 6, and across 5
and 6.
28 06 1 Cooling control current-
ly run locally due to
service Cooling control temporarily controlled by Lodam Multi Tool. Over-
ride lasts for max. 60 minutes.
28 07 1 Cooling control safety
functions overridden lo-
cally due to service Cooling control temporarily controlled by Lodam Multi Tool. Over-
ride lasts for max. 60 minutes.
28 13 4 Cooling control detec-
ted which was not se-
lected in the VEX/CX
configuration The cooling unit is configured in menu 3.4 "Accessories".
28 14 4 Cooling control config-
ured incorrectly in con-
nection with the selec-
ted VEX/CX configura-
tion ● Check jumper in CN6 connector on cooling control circuit
board. There must be a jumper across 4 and 6, and across 5
and 6.
28 15 4 No modbus communi-
cation to cooling con-
trol ● Check the modbus cable between the connection board (EX-
act)/main board (EXact2) and MXCU module.
● Check the modbus cable from the MXCU module to the other
units for faulty wiring.
3005167-2022-02-02
Alarms
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