Open Processor with Trane Driver Owner's Manual
6-4 Siemens Building Technologies, Inc.
Landis Division
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1.
Verify that there is at least one point in the Open Processor.
2.
Disconnect the FLN 1 Trunk cable that connects the Open Processor to the Trunk
Interface II to see if the problem disappears. If the LEDs start flashing, the wiring
may be bad. Check the wiring polarity between the Trunk Interface II and the Open
Processor: + to +, – to –, shield connected at the Open Processor, but
disconnected at the Trunk Interface II.
3.
Contact your local Siemens Building Technologies representative.
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Which of the following best describes the problem?
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.
1.
Verify that the AC power to Trunk Interface II is properly connected.
2.
Verify that the FLN connector screws face d
dd
do
oo
ow
ww
wn
nn
n at the Open Processor and u
uu
up
pp
p at
the Trunk Interface II.
3.
Verify that the FLN connections properly terminate at FLN 1 on the Open Processor:
+ to +, – to –, and shield to shield.
4.
Verify that the FLN connections properly terminate at the Trunk Interface II: + to +,
– to –, and shield disconnected.
5.
Verify that the Open Processor’s FLN 1 baud rate is correct.
6.
Check the FLN Trunk for shorts or opens.
7.
Verify that the Open Processor addresses are correct and that all Trane equipment
controller points have addresses on FLNs 1–3.
8.
Contact your local Siemens Building Technologies representative.
B
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B.
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m.
1.
Check wiring polarity between the Trane and the Trunk Interface II (refer to
installation instructions).
2.
Disconnect the Trunk Interface II from the Trane system. If the problem ceases, call
your Trane representative.
3.
Contact your local Siemens Building Technologies representative.
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