ZFR1800 Series Wireless Field Bus System Technical Bulletin54
Table 14: Taking Corrective Action (Part 1 of 3)
Possible
Cause
Code
Possible Cause Troubleshooting Step and Remedy
CH1 The ZFR1810 Coordinator is
unpowered - power supplied by
a 24 VAC transformer.
• If the 24 V~ connector block is not plugged into the ZFR1810
Coordinator, plug the 24 V~ connector block into the ZFR1810
Coordinator.
• If 24 VAC power is not connected to the HOT and COM
terminals of the 24 V~ connector block, connect 24 VAC power
to the HOT and COM terminals of 24 V~ connector block.
• If 24 VAC power cannot be measured across the HOT and COM
terminals of the 24 V~ connector block, replace the 24 VAC
transformer.
CH2 The ZFR1810 Coordinator is
unpowered - power supplied
from the FC BUS jack on an
NAE35/45 or NCE25.
If the cable from an NAE35/45xx or NCE25xx is connected to the
ZFR1810 Coordinator’s FC BUS OUT port, connect the plug to the
FC BUS IN port of the ZFR1810 Coordinator.
CH3 ZFR1810 Coordinator is
defective.
Replace the ZFR1810 Coordinator.
CH4 ZFR1810 Coordinator needs a
software download.
Download the ZFR1810 Coordinator software using CCT.
CH5 ZFR1810 Coordinator is not
wired properly to the NAE/NCE.
Connect the FC bus terminals to the corresponding terminals on all
devices on the FC bus.
CH6 FC Bus cable is incorrectly
terminated.
Connect the FC bus terminals to the corresponding terminals on all
devices on the FC bus.
CH7 The FC Bus cable between the
ZFR1810 Coordinator and the
NAE/NCE is loosely connected
or incorrectly terminated.
Securely connect wires to the correct FC bus terminals on all
devices on the FC bus.
CH8 Problem is intermittent MS/TP
Communications.
Refer to the MS/TP Communications Bus Technical Bulletin
(LIT-12011034).
CH9 The ZFR1810 Coordinator has
a loose power connection.
Securely connect the wires to the 24 V~ connector block.
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