Product Manual

Troubleshooting
5–10 975-0636-01-01 Rev E
F73
Transformer Temp
unreadable
Automatic Temperature
sensor is
damaged.
Service required.
F74
Other Unit
Invert Fault
Automatic In a Multi Unit
configuration—if
one of the units
detects a fault that
needs to be
resolved.
Clear the primary fault on the
unit that caused this fault to
be detected.
F75
Master Inverter
Lost
Automatic In a Multi Unit
configuration—if
the Slave unit
cannot detect the
Master unit in the
Xanbus network.
Make sure that the two units
are connected in the same
Xanbus network. Check
cable connections and
ensure that the plugs are
neatly inserted in the ports.
Check if the Xanbus network
is properly installed with
network terminators.
F76
No Masters Automatic In a Multi Unit
configuration—if
all units are
configured as
Slave.
Assign the other unit as
Master. See “Multi Unit Config
Menu” on page 4–29.
F79
Battery Sensor
Short
Automatic The BTS has been
damaged.
Replace the BTS.
F85
PowerBoard Over
Temperature
Automatic Same as F57. Same as F57.
F87
Inconsistent
Frequencies
Automatic In a Multi Unit
configuration—if
all units are not
configured to the
same AC output
frequency.
Configure all units to the
same AC output frequency.
See “Advanced Features
Menu” on page 4–33.
F88
MPPT Ground
Fault
Automatic In a Xanbus
network, an MPPT
has detected a
ground fault
F56.
Check the MPPT and clear
the ground fault
F56.
F89
Battery
Discharge Over
Current
Escalating There is an
excessive load on
the Li-ion battery.
This fault applies
only to Li-ion
batteries.
Change the default threshold
of the max battery discharge
current limit or reduce the
load.
Table 5-3 Fault Detection Messages
Code Message Type Cause Solution
ConextSWEUROwnersGuide.book Page 10 Thursday, July 23, 2015 3:32 PM