7
4. Indicator light
The LON module incorporates a yellow indicator light which is a service LED
indicating various conditions of the LON network.
For further information, see the documentation files on the floppy disk sup-
plied with the LON module.
5. Technical data
6. Fault finding chart
Transceiver type FTT - 10
Recommended cable Twisted-pair cable
Transmission speed 78 kBits/s
Protocol LonTalk
®
Current consumption Maximum 200 mA
Fault Cause Remedy
The pump does not
react to the LON
signal.
The wires are not con-
nected correctly to the
terminal block.
Connect the wires cor-
rectly.
The plug connection be-
tween the terminal box
and the module is faulty.
Correct the fault.
The terminal box or the
module is defective.
Replace the module.
Replace the terminal box.
Contact Grundfos.
The yellow indica-
tor light on the
module is not off
(flashing or perma-
nently on).
The LonWorks network or
the module is defective.
Contact the system ad-
ministrator for further de-
tails and fault finding.
Subject to alterations.
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