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© Munters AB, 2020
11
2
Precautions
CAUTION
Protection provided by the equipment can be impaired if the equipment is used in a manner
not specified by the manufacturer!
CAUTION
There is a risk of explosion if the lithium battery is replaced with an incorrect type. Replace
the battery using the same type and manufacturer only.
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•
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2.1
Grounding
•
Always connect temperature and sensor shields to earth ground.
Avoid mixing high voltage
wiring with sensor and low voltage wiring
.
•
Keep the controller as far as possible from heavy contactor boxes and other sources of
electrical interference
.
•
Do not connect communication wire shields, which go from one house to another at both ends.
Connect them at one end only. Connection at both ends can cause ground loop currents to
flow, which reduce reliability
.
•
The COM connection for communications is not the shield wire. The COM, RX and TX wires
must connect to each other at all controllers
.
2.2
Filtering
If this installation includes a power inverter to drive variable speed fans, install an EMI filter in front of the
inverter, according to the specifications provided by the inverter manufacturer. Refer to the inverter
documentation.
2.3
Checking the Battery Level
Check the battery once a year. The output must be 2.7 volts (minimum). Authorized personnel only must
replace the battery if the output is below the minimum required level or every five years.
2.4
Frequency Inverters
Frequency inverters can cause severe electrical and electromagnetic interference. Therefore, when
employing a frequency inverter, it is critical that you carefully follow the manufacturer's installation
instructions.
In particular verify:
•
That the cable shielding between the inverter and any motor meets industry standards
•
Proper grounding of the inverter's chassis and motor power cable
Summary of Contents for TRIO
Page 18: ... Munters AB 2020 18 Figure 5 Relay wiring detailed view Figure 6 Relay and port numbering ...
Page 86: ... Munters AB 2020 86 ...
Page 88: ... Munters AB 2020 88 4 Verify that each channel is enabled ...
Page 170: ... Munters AB 2020 170 Click to view the bird scale data ...
Page 180: ... Munters AB 2020 180 25 3 2TRIO 20 CONTAINER SPARE PARTS ...
Page 182: ... Munters AB 2020 182 25 3 3TRIO 20 DOOR CARD SPARE PARTS ...
Page 184: ... Munters AB 2020 184 25 3 4TRIO 20 MAIN CONTAINER SPARE PARTS ...
Page 196: ... Munters AB 2020 196 Figure 36 Relay and port numbering 26 2 3POWER Figure 37 Power ports ...