Operation Defects - Key Automation 900CT-380 Manual De Instrucciones

OPERATION DEFECTS

This paragraph shows some possible operation defects, along
with their cause and applicable remedy.
MAINS led does not switch on
It means that there is no voltage on 900CT-380 control unit card.
1. Make sure there is no voltage interruption at the power unit
source and that the switch is turned to ON.
2. Before intervening on the control unit, disconnect the power
supply using the switch fitted on the power unit or other
device at source on the power line.
3. Check whether the fuse F3 is burnt-out, if so replace it with
same value.
MAINS led is on but the display does not come on
This means that there is no power supply to the transformer's
secondary circuit.
1. Before intervening on the control unit, disconnect the power
supply using the switch fitted on the power unit or other
device at source on the power line.
2. Check whether the fuse F1 is burnt-out, if so replace it with
same value.
3. If replacing the fuse does not solve the problem, send the
power unit to the KEY to be repaired.
OVERLOAD led is on
It means that there is an overload on accessory power supply.
1. Remove the extractable part containing terminals P1 to
P14. OVERLOAD led will switch off.
2. Remove the overload cause.
3. Reinsert the terminal board extractable part and check that
this led is not on again.
Error 1
The following writing appears on display when you exit from
programming:
It means that changed data could not be stored.
This kind of defect has no remedy and the control unit must be
sent to KEY for repair.
Error 3
When a Start command is given and the gate does not open
and the following writing appears on display:
It means that the photocell test failed.
1. Be sure that no obstacle interrupted the photocell beam
when the Start command was given.
2. Be sure that photocells, as enabled by their relevant menus,
have been installed actually.
3. Be sure that photocells are powered and working; when you
interrupt their beam, you should hear the relay tripping.
Error 4
When a Start command is given and the gate does not open
(or does a partial opening) and the following writing appears on
display:
It means that the end of stroke is damaged or that the wiring
that connects the sensor to the control unit is broken.
Change the end of stroke sensor or the broken wiring.
If the error persists send the control unit to KEY for repair.
Error 5
When a Start command is given the gate does not open and
the following writing appears on display:
It means that the safety edge test failed (if using conductive
rubbers the test is carried out also if not activated by test
menu). Check the connection of the safety edges.
Too long pre-blinking
When a Start command is given and the blinker switches on
immediately but the gate is late in opening, it means that the
setup cycle count down expired and the control unit shows that
service is required.
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