Matrix Telecom Inverter System
46
Copyright © 2008-2010 Eaton Corporation. All Rights Reserved.
IPN 997-00012-68D February 2010
Error Condition Possible Cause
Recommendation
AC output is
normal, green LED
is on, red LED
flashes at 1Hz.
EEPROM FAULT. EEPROM
can not write or read data
correctly
This will not influence the STS AC output. The
alert will be off automatically after 10s later.
AC output is
normal, green LED
is on, red LED
flashes at 1Hz.
CAN communication error
Check the connection of CAN signal cables
AC output is
normal, green LED
is on, red LED
flashes at 2Hz.
SCR short fault
Turn MBS to mains or inverter bypass mode,
maintain the STS
AC output is
normal, green LED
is on, red LED
flashes at 2Hz.
Auxiliary Power Supply fault Turn MBS to mains or inverter bypass mode,
maintain the STS
AC output is
normal, green LED
is on, red LED
flashes at 5Hz.
MBS provides 3 signals to STS
for detecting MBS position.
When the connection is off or
not at valid position, this alert
appears.
Check if the MBS and STS signal cable is well-
connected
AC output is off,
red LED on, other
LED off.
STS fault mode
Turn MBS to mains or inverter bypass mode,
maintain the STS
AC output is off,
red LED on, other
LED off.
Over temperature
Turn MBS to mains or inverter bypass mode,
maintain the STS, check if the environmental
temperature is higher, if there’s anything
blocking the vent?
AC output is off,
red LED on, other
LED off.
Over load
Decrease or remove the loads, then shut down
or remove the STS module. Then connect it
back and restart up.
AC output is off,
red LED on, other
LED off.
Output short
Decrease or remove the loads, then shut down
or remove the STS module. Then connect it
back and restart up.
AC output is
normal, green and
yellow LED flashes
at 2Hz.
Inverter bypass mode
STS internal temperature is too high. Check if
anything blocking the vent or working overload
for long time.
STS Module Alarm LED display status (Low to High Priority)
LED LED
Signal
Status
Solid
STS is operating normally
Green
Slow Flash (1Hz)
Running mode does not agree
with the setting priority. For
example, STS is in off-line
mode, but the priority is on-
line.