Eaton STS 16 Installation And User Manual - Troubleshooting
51027617EN/AI - Page 13
Troubleshooting
Display
Problem
Solution
All LEDs on the front panel of the STS are
OFF.
The power sources S1 and S2 are absent.
Check power sources S1 and S2.
Reset the circuit breakers 15 on the
rear panel of STS (if the fault has been
cleared).
One of the voltage-status LEDs 1 for the
sources is red.
The red fault LED 4 is OFF.
The corresponding power source is absent
or outside tolerances.
Check the concerned power source.
Reset the circuit breaker 15 on the rear
panel of STS.
On STS 16, the two voltage-status
LEDs 1 for the sources are green.
The red fault LED 4 is OFF and the
application is not supplied with power.
There is an overload on the output circuits.
Reset the circuit breaker 9 .
The red fault LED 4 is ON.
Internal fault in STS.
Contact the after-sales technical support.
The red LED 16 is ON.
Sources out of synchronization, leading to
premature wear of the STS.
Check your installation.