PLDC01938
REVISION 00
01/06/2011
TECHNICAL DEPT
Stavale
- date 05/09/2011
191/195
E2.1.3 The machine does not move forwards
A
Consult the message in the table E1.2.
1
Check there are no messages on the control
panel display, see paragraph E1.2.
B
If there are no messages, go to point 2.
A
Correct the error as described in table E1.1.
2
Check that the status LED on the drive board
control panel does not indicate a malfunction
B
If there are no messages, go to point 3.
A
If you do not hear activation of the contactor, go to
point 4.
3
Listen for activation of the drive contactor TL2,
see paragraph D3.1.
B
If you hear activation, go to point 7.
A
If the sensor is working correctly and there is
continuity in the connected wires, go to point 5.
4
Check operation of the operator present
sensor and bridge it if necessary.
B
If the sensor is not functioning, bridge and/or
replace it.
A
If there is no voltage, go to point 6
5
Check for a voltage of 36 V on the coil
command wires of the contactor TL2 (RED and
YELLOW-BLACK wire), see paragraph D3.1.
B
If OK, go to point 7
A
If there is no continuity, restore it by repairing or
replacing the YELLOW-BLACK wire.
6
Check the continuity of the YELLOW-BLACK
coil command wire, see paragraph C1.2 drive
board side and D3.1 contactor side.
B
If there is no continuity, go to point 7
A
If there is voltage on PIN 12 (forwards) or PIN 13
(backwards), go to point 8.
7
Check that there is a voltage of +36 V reaching
PIN 12 or PIN 13 of the drive board from the
forwards-reverse movement deviator on the
control panel.
B
If there is no voltage, restore the contacts or replace
the deviator on the control panel.
A
If there is voltage, check operation of the motor
wheel C1.1.
8
Check the output voltage at pins M-/A2 of the
drive board.
B
If there is no voltage, go to point 9
A
If there is voltage, go to point 10
9
Check there is a voltage of +36 V on the RED
wire of the board, see C1.2.
B
If there is no voltage, restore it.
A
Restore the absent signals or replace the control
panel board.
10
Check all the drive board input and output
signals, see paragraph C1.2.
Pay particular attention to PIN 6.
B
Replace the drive circuit board
E2.1.4 The brushes do not rotate
A
Correct the error as described in table E1.2.
1
Check there are no errors on the control panel
display, see paragraph E1.2.
B
If there are no errors, go to point 2.
A
If there is voltage, go to point 3
2
With a digital multimeter, check for a voltage of
36 V between the negative wires C on the
power pin B5, see paragraph D2.1 and the
positive isolator A, see paragraph D3.
B
If there is no voltage, go to point 5
A
If there is voltage, go to point 4
3
Check for a voltage of 36 V on the Anderson
connectors F1 - F2, see paragraph A1.2.
B
If there is no voltage, check the continuity of the
power wires.
A
If the carbon brushes are worn, replace as
described in paragraph A1.3.
4
Check the state of wear of the carbon brushes
as described in paragraph A1.3.
B
If the carbon brushes are in good condition, replace
the brush motors.
A
If there is voltage, go to point 6
5
Check for a voltage of 36 V at the positive B1
and negative B4 pins of the functions board.
B
If there is no voltage, restore it.
A
If there is voltage, replace the functions circuit
board.
6
With the brushes activated, check for a voltage
of between +1.6 and 1.7 V on PIN 5 of the
RED-BLACK wire of connector CN2 and PIN
22 of the control panel board.
B
If the voltage is fixed at +12 V or 0 V, replace the
control panel board.
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