11.3 LED flashing patterns of the three operation status LEDs
Note: Text in Bold is the most normal situations/patterns
Start-up state: During start-up, the LEDs are constant on or off depending on the state of the system.
Either the yellow or the red LED will be constant on when the Control Micro is in one of the start-up
states.
Operation modes: When the unit has been initialised and is ready for operation.
If the unit is started in normal operation mode the green LED will be constant ON.
If the unit is started in Service mode the green LED will be flashing slowly with a short on period.
If the unit is started in Production mode the green LED will be flashing slowly with a long on period.
Slow flashing patterns in normal operation mode:
Yellow LED is flashing: Warning or critical is active.
Red LED is flashing: Fault is active (It is possible to start the motor again when the fault condition
disappears AND the fault has been reset).
The faster and the longer an LED flashes the more severe the alarm
Fast flashing of any of the 3 LEDs means that a fault has occurred and it can only be reset via
external reset (digital input or serial communication) or only by a power cycle in some situation. In
such a situation it may be a good idea to take a note about the flashing pattern since this could help
to locate the problem.
Alarms: Warnings, criticals and faults may be present at the same time. If a warning and a critical
both are present only critical will be shown on LEDs as this is more severe than warning. Any of the
fault flashing patterns may also be combined with either a warning or a critical.
= Slow flash (0.5 Hz) and long on period
= Slow flash (0.5 Hz) and medium on period
= Slow flash (0.5 Hz) and short on period