Robot Coupe Blixer 23 Manual Del Usuario página 21

- « Pto » « or » « rth » « or » « bPA » message
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The motor's thermal protector ("Pto"), the thermal
relay ("rth") contact or the "off" button ("bPA")
contact is open.
Checks to be carried out in the following order
Situation n°1:
The message appears on the screen as soon as the
machine is powered up.
1) Check that the thermal relay wire is correctly posi-
tioned to the right of the control board. See elec-
trical diagram.
2) Check that the thermal relay has not be triggered
and that it is adjusted to reset automatically.
3) Check (with an ohmmeter) that the thermal pro-
tector is closed. Check the relevant wiring.
4) Check (with an ohmmeter) that the thermal relay's
contact is closed. Check the relevant wiring.
5) Check that the "off" button is not stuck in the open
position. Move the button and listen out for the
characteristic "click".
Situation n°2:
- The message appears when the motor is very hot
(orange indicator light on).
The "off" button is open: wait ten or so minutes for
the motor to cool down (the orange light will go
out) before trying to start the machine up again.
- The machine has been subjected to very intensive
use.
The thermal relay is open: wait a couple of minutes
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for the thermal relay to reset and reduce the load
placed on the motor before trying to switch it back
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on.
Situation n°3:
The message appears even though the motor is not
hot and the machine has not been subjected to inten-
sive use:
1) Check that the "off" button is not stuck in the open
position. Move the button and listen out for the
characteristic " click".
2) Check (with an ohmmeter) that the thermal pro-
tector is closed. Check the relevant wiring.
3) Check (with an ohmmeter) that the contact of the
thermal relay is closed Check the relevant wiring.
If the message persists, even though the thermal pro-
tector and the thermal relay are closed, the "off" but-
ton is moving freely and the wiring is in accordance
with the electrical diagram, either get the control
board and timer board checked over or have them
replaced.
- « rELEASE bP1 » message
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The contact of the 1st speed "on" button ("bP1")
remains closed.
Either release the button or check that it is not stuck.
Move the button and listen out for the characteristic
"click".
If the 1st speed "on" button is working properly but
the message remains on the screen, either get the
control board checked over or have it replaced.
- « rELEASE bP2 » message
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The contact of the 2nd speed "on" button ("bP2")
remains closed.
Carry out the checks recommended for the 1st speed
"on" button.
If the 2nd speed "on" button is working properly but
the message remains on the screen, either get the
control board checked over or have it replaced.
- « rELEASE bPP » message
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The contact of the "pulse control" button ("bPP")
remains closed.
Carry out the checks recommended for the 1st speed
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"on" button.
If the "pulse control" button is working properly but
this message remains on the screen, either get the
control board checked over or have it replaced
- « not u.u. » message
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The control board is not correctly configured.
Position the JP1, JP2 and JP3 jumpers according to
the machine's electrical diagram.
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