22
3.3
Normal Run / Standby / Start-up – No User Intervention Required
Once the unit has initialised User LED 1 refers to cylinder 1, while User LED 2 refers
to Cylinder 2. For combinations of LED 1 and LED 2 being off, RED or RED Flashing
refer to following table.
User LED 1
User LED 2
Description
1 OFF
OFF
Cylinder 1 and Cylinder 2 (if fitted) in shutdown.
Or
Cylinder 1 in standby and Cylinder 2 in shutdown.
2 OFF
RED Flashing
1 second period
Cylinder 1 and Cylinder 2 (if fitted) in standby
3
RED Flashing
Variable Period or ON
OFF
Cylinder 1 Online. Cylinder 2 (if fitted) in standby
The variable period is determined by the demand signal for cylinder
1 as follows,
Cylinder 1 demand
LED ON RED
LED OFF
<12.5%
0.5
seconds
3.5
seconds
<25%
1.0
seconds
3.0
seconds
<37.5%
1.5
seconds
2.5
seconds
<50%
2.0
seconds
2.0
seconds
<62.5%
2.5
seconds
1.5
seconds
<75%
3.0
seconds
1.0
seconds
<87.5%
3.5
seconds
0.5
seconds
>=87.5%
ON RED Continually
4
Any
RED
Cylinder 2 Online
The above are purely indications of the current state of the unit, and require
no action from the operator. When the state changes the indication will
automatically change.
