Alpha Technologies INEX 100A STS Module and MBS+PDU - Manual (Page 29)

Argus Technologies Ltd. 019-061-C0 Rev A WC
Printed in Canada. © 2009 Argus Technologies Ltd. ARGUS is a registered trademark of Argus Technologies Ltd. All Rights Reserved. Page 19 of 26
AC output is normal,
green LED is on, red
LED flashing 1 time / s.
CAN communication error. Check the connection of CAN signal cables.
AC output is normal,
green LED is on, red
LED flashing 2 times / s.
SCR short fault.
Turn MBS to mains or inverter bypass mode,
maintain the STS.
AC output is normal,
green LED is on, red
LED flashing 2 times / s.
Power supply fault.
Turn MBS to mains or inverter bypass mode,
maintain the STS.
AC output is normal,
green LED is on, red
LED flashing 5 times / s. MBS provides three sets of signals to STS for
detecting wiring connection. When the connection
is not at valid position, this alert appears.
Check if the MBS and STS signal cable is well
connected.
AC output is off,
red LED is on, other
LED off.
STS fault mode.
Turn MBS to mains or inverter bypass mode,
maintain the STS.
AC output is off,
red LED is on, other
LED off.
Over temperature.
Turn MBS to mains or inverter bypass mode,
maintain the STS.
Check if the environmental temperature is higher,
or if there is anything blocking the vent.
AC output is off,
red LED is on, other
LED off.
Overload.
Decrease or remove the loads, then shut down or
remove the STS module. Then connect is back
and restart.
AC output is off,
red LED is on, other
LED off.
Output short.
Decrease or remove the loads, then shut down or
remove the STS module. Then connect is back
and restart.
AC output is normal,
green LED is on, red
and yellow LEDs
flashing 2 times / s.
Inverter bypass mode.
STS internal temperature is too high. Check if
there is anything blocking the vent or working
overload for long time.
Table E–Troubleshooting for system