
Micro-control as
Operation and Maintenance Manual for MC-3-series
Page 8 of 9
MAN-05-006
Rev.
1
6. Display Codes
Table 1: Status Indications on the Terminal
Flashing pattern
Description
Action
Steady light.
Normal condition. The terminal is
turned on, the battery voltage is OK,
and no fault is detected.
None
Slow flashing light
without stop (1 flash
per second).
Low battery voltage.
Replace the battery with a fully charged
one.
Short flashes (2
flashes per second).
Programming mode.
Turn the terminal off and on again to
start normal operation.
1 flash with a long stop
(every 2. second).
Processor fault or test mode.
Indicates a processor module fault
and/or a processor fault.
Ensure that the processor module
BOOT-jumper is not turned on!
Replace the processor module and/or
the processor!
2 flashes with a stop.
Activity at start-up.
A joystick is out of centre position, or
a switch is in ON-position.
Set all switches/joysticks to OFF-
position and/or neutral position!
3 flashes with a stop.
Radio fault.
Change/Replace the Radio module.
4 flashes with a stop.
Shutdown because of low battery
voltage.
Replace the battery with a fully charged
one.
5 flashes with a stop.
Keyboard fault.
The terminal is not able to ”read”
switches, joysticks etc.
There is a fault at the input module.
6 flashes with a stop.
Shutdown because of inactivity.
The terminal will soon ”turn itself off”
since no switches, joysticks etc. has
been activated.
Turn the terminal off and on again to
start normal operation.
7 flashes with a stop.
Priority stop.
The stop button or the shock
detector has been activated.
Ensure the Stop button is Out and turn
the terminal OFF and ON again to start
normal operation!
The light emitting
diode ”BAT” does not
light.
No LED
Ensure that there is a charged battery
in the terminal and that the terminal is
turned on. If the terminal has turned
itself off because of inactivity, turn it off
and on again to start normal operation.