Operating instructions

OI: BK MIKRO 7 Status Indication
Rev. 2.01 dated 05.02.2007 Page 27 of 32
7 Status Indication
7.1 Yellow LED
Fast flashing = Self-test
After power-up, the system will carry out a self-test indicated by fast flashing of this yellow LED.
Steady illumination = Ready to operate
Following its self-test, the system is ready to operate. The LED stops flashing and remains
steady.
Slow flashing = Scanner fault
The system has detected a scanner fault:
 Scanner is missing or has motor fault.
 Control cable is not correctly connected, e.g. even cable break.
Outputs will be switched inactive, the unit will remain in its present state, indicated by
slow flashing of this yellow LED.
7.2 Red LED / Green LED
Steady illumination = Indication following scanning cycle
The red LED indicates a fault message.
The green LED indicates a no fault message.
Flashing = Illegal settings
A flashing red and green LED simultaneously indicates that one or more of the switches
is incorrectly set, and/or the S1/S2 selection inputs have been connected incorrectly.