Indicator light
Action
Meaning
H22
Green
Continuous light
The converter is ready to start. All circuit breakers are
switched off. OFF2 or OFF3 are not active.
Green
Flashing light
All circuit breakers are switched off. The converter is, how‐
ever, not ready to start. An OFF2/OFF3 or a fault is active.
H23
Yellow
Flashing / contin‐
uous light
Warning
H24
Red
Flashing / contin‐
uous light
Fault
If a fault or an alarm becomes active, the lamp flashes for 5 seconds. It then switches to the
continuous light state. If a new message is occurs while the lamp is continuously lit, the lamp
begins to flash again for 5 seconds and then is again continuously lit. The lamp is extinguished
once the cause of the problem has been resolved.
LED for Sirius safety relay
LED
Operation
Device
Out
Line
Sensor
Start pushbutton
Safety-related output
Green
Green
On
Not confirmed
Was confirmed
Closed
Green
Off
Was confirmed
-
Open
Green
Off
Not confirmed
-
Open
Fault
Off
Off
Cross-circuit or no power supply
Open
LEDs of the Power Stack Adapters
Table 8-2
LEDs of the Power Stack Adapters
LED
Color
Status
Description; cause
Remedy
PWR
-
Off
24 V power supply has failed or is too low
(< 14 V) or internal fuse defective.
Check input voltage.
If input voltage is > 18 V and LED off:
Return component for repair.
Red
Continuous
light
24 V power supply is available (>14 V);
internal board voltage fault.
Check input voltage.
If input voltage is > 18 V and LED red:
Return component for repair.
Green
Continuous
light
24 V power supply OK.
Internal board voltages OK.
--
Operation
8.5 Fault and system messages
3rd Party LCI Control Upgrade
Operating Instructions, 02/2022, A5E31872818
107
