11. Electronics Unit
11. ELECTRONICS UNIT
Description
The electronics Unit contains the following the electronic parts and devices:
•
main power supply
•
fuses
•
pump motor inverter
•
compressor motor inverter
•
Low voltage power
•
contactor
•
power supply
fi
lters
•
logic board
Overview
•
•
•
Installing the electronics unit
•
•
11.1 SD logging status
About SD card logging
The Chiller logic board has an SD card installed, in order to allow logging of the chiller performance. In normal circumstances, this
logging feature is disabled to allow for optimal performance of the Chiller and projector it is connected to.
However, in case the chiller is not performing as intended, or in case you suspect something is amiss with either the chiller, tubing
or projector, you can enable the SD card logging for a certain amount of time (e.g. an entire day) to create a log dump of the entire
chiller process (not active, projector starting up, playing, etc).
How to (de)activate SD card logging?
In the Chiller service tool, click on the SD logging status button.
•
To enable SD card logging, click
Send SD enable command
in the SD logging menu.
•
To disable SD card logging, click
Send SD disable command
in the SD logging menu.
While the SD card logging is active, the following will be visible:
•
The SD logging enabled button will be colored green in the SD logging menu.
•
The red SD logging led will
fl
ash regularly on the logic board in the chiller.
11.2 Removing the electronics unit
C
AUTION
:
Make sure the Chiller is disconnected from the power net AFTER the logic board parameters have
been stored on your computer. Wait at least
fi
ve minutes before disconnecting the primary pump wiring.
Necessary tools
•
Phillips screwdriver
•
Allen wrench 3 mm
•
Nut spanner 7 mm
•
Nut spanner 8 mm
R5906015 ULC-30A 01/02/2018
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Summary of Contents for ULC-30A
Page 1: ...ULC 30A Service manual R5906015 01 01 02 2018...
Page 4: ......
Page 6: ...Table of contents Index 97 2 R5906015 ULC 30A 01 02 2018...
Page 10: ...1 Safety 6 R5906015 ULC 30A 01 02 2018...
Page 24: ...5 Covers 20 R5906015 ULC 30A 01 02 2018...
Page 28: ...6 Fan unit 24 R5906015 ULC 30A 01 02 2018...
Page 40: ...7 Coolant procedures 36 R5906015 ULC 30A 01 02 2018...
Page 70: ...10 Refrigeration unit 66 R5906015 ULC 30A 01 02 2018...
Page 92: ...11 Electronics Unit 88 R5906015 ULC 30A 01 02 2018...