Primus RF6 Programming Manual page 122

commands the brake air pressure valve.
4. Check the output relay that powers the control
signal for the brake air pressure valve.
5. Check the output relay that powers the control
signal for the brake air pressure valve.
FAILURE 49: UNBALANCE SWITCH AT WASH
F120 machine only. Failure 49 occurs at the wash action when the air suspension, due to some problem, is
without compressed air. This must prevent mechanical damage when the mechanical movements at wash
action get too big. When the tub is moving a lot, the unbalance switch will be activated and the wash process
will be stopped by the wash computer.
DIAGNOSE:
1. Check if there if the washing machine is supplied
with compressed air.
2. Check if the air pressure valves are functional.
3. Check if the air suspension is not damaged.
4. Check the position of the out of balance switch.
5. Check the wiring, the contact of the out of
balance switch is normally closed
Check connector pins for loose connections
6. Check the electronic board.
(Inputs can be checked one by one in the Service menu)
FAILURE 50-51: ERROR NO SECOND-THIRD ACCELERATION RAMP
F120 machine only. Failures 50-51 occur when the washing machine is not accelerating to the programmed
extraction speed with the standard spin ramp but with the wash speed ramp. In normal operation, the
machine accelerates slowly to it's maximal speed. (The software is only monitoring Error 50 and 51 when the
maximal spin speed has been programmed.)
DIAGNOSE:
1. Check if the wire bridges at the terminals of the
Mitsubishi inverter are present.
2. Check if the wire bridges at the terminals make
electrical contact.
3. Check if the right Mitsubishi inverter parameters
have been loaded.
4. If the problem is persistent check first all other
diagnose options.
FAILURE 52: PCB-EEPROM CRC FAILURE
At Power-up the wash computer checks if the factory settings in the EEPROM memory are still ok.
(Wrong CRC reading data from EEPROM)
Wash computer to be reset at manufacturer by Factory Test validation procedure.
FAILURE 53: PCB-EEPROM DATA OUT OF RANGE FAILURE
At Power-up the wash computer checks if the factory settings in the EEPROM memory are still ok.
120
If the relay receives a command signal but is not
closed, replace the electronic board
If the relay does not receives a command
signal, replace the electronic board
Supply the washing machine with compressed
air.
If the air pressure valves are not functional,
repair or replace the valves. See installation/
Maintenance manual.
If the air suspension is damaged, replace the air
suspension. See installation/Maintenance manual.
If the out of balance switch is not correctly
mounted, install the out of balance switch properly
If there is no continuity: repair the wiring
If the input of the electronic board is not
functional, replace the electronic board.
When a new inverter is installed, the wire
bridges at the terminals of the Mitsubishi inverter
must be installed. (See electrical drawing)
If there is no continuity between the terminals at
the wire bridges, make a good connection by
tightening the screws at the terminals.
Load the correct Mitsubishi inverter parameters.
Replace the Mitsubishi inverter.
PROGRAMMING MANUAL
MCB EC ONLY
MCB EC ONLY
100962 G PUBLICATION DATE 24 JUN 2008.DOC