27
SELF DIAGNOSTICS (CONTROL UNIT)
The means of diagnostic features is to
• detect malfunctions
• try to take care of safety during malfunction
• get the operator to recover from the defected state
In case the result of the diagnostics shows unrecoverable malfunctions, the door operator is considered as
unsafe, and the door is set free for manual use. The user is informed by blinking both of the LED’s in control
unit.
Ohjauskeskuksen LED:it
Indication Possible fault Corrective user interventions in defi ned order
G not lit
Y not lit
No power.
Faulty power supply unit.
Faulty control board.
1. Check the mains.
2. Remove 12 pin connector from the control board.
3. Measure the voltage from 5 pin connector,
connection points 1 and 3. If voltage is under
24VDC, change the power supply unit
4. Measure the voltage from 12 pin connector, +24V
out against GND. If voltage is not 24 VDC, change
the control board.
G lit
Y lit
The door “close” and “open” positions
are not successfully teached.
Impulse device is active all the time.
Fire detector is active.
1. Teach the door open and close positions.
2. Check all impulse devices and connections.
3. Check fi re detector connection and fi re N.C. jumper.
G lit
Y fl as
Flash short...short...short...:
1000 ohm resistor is missing or cable
of safety sensor is cut.
Flash short...long...short...long...:
Safety sensor is active or cable of
safety sensor is short-circuited.
1. Check that 1000 ohm resistor is connected in
control board or in safety sensor.
2. Check that cables are not damaged.
1. Move obstacle from safety sensor detection area.
2. Check that cables are not damaged.
G fl ash
Y fl ash
Internal fault in the control board.
Door motion is stopped.
1. Switch main switch off for 10 seconds.
2. Check that all applicable jumpers are in place (one
of the two arms is selected, “single” is selected).
3. Teach the door open and close positions.
4. Change a spare control board.
G fl ash
Y fl ash
alternates
Internal fault in the position sensor
board.
Door motion is stopped.
1. Switch main switch off for 10 seconds.
2. Check that all applicable jumpers are in place (one
of the two arms is selected, “single” is selected)
Check position sensor’s cable and connector.
3. Teach the door positions.
4. Change a spare position sensor.
TEACH OPEN
POWER ON
TEACH CLOSED
TEACH
Yellow led = Y
Green led = G
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