1MRS 750741-MUM
Lon
Ç
/SPA Gateway
Installation Manual
SPA-ZC 100
13
5.
Maintenance and service
5.1.
Self diagnostic
5.1.1.
SPA indicator LED
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5.1.2. LON
indicator
LED
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5.2.
Fault localization
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Problem
Fault type
Repair step
SPA and LON indicator LED not lit
on start up. (Power supply trough
the connection cable
Supply failing
Check if the SPA-bus device has
power.
SPA indicator LED is off
Check that the SPA-ZC 100 is
properly connected to the device.
LON indicator LED is off
Check the DIP-switch settings for
SPA-bus interface type and supply
voltage.
SPA-ZC 100 does not respond to
L
ON
W
ORKS
messages
L
ON
W
ORKS
fault
Check the communication speed of
devices sharing the same
communication channel.
LON indicator LED is blinking
L
ON
W
ORKS
fault
Check that the SPA-ZC 100 is
properly connected to the device.
Check the fibre-optic connections.
Check that the master address of the
SPA-ZC 100 is correct.
SPA-ZC 100 does not work
properly or that it gives different
results to the same query
L
ON
W
ORKS
fault
Ensure that the L
ON
W
ORKS
address
of the SPA-ZC 100 is unique in the
communication network.
