Baruffaldi DB-21 - SERVICE; TROUBLESHOOTING

M.DRIVE.DB-21.GEN.ENG
Ed.
2021 Rev.04
Pag. 22 di 31
13. SERVICE
13.1 TROUBLESHOOTING
Display Description Code
1.0 Undervoltage (only with turret unlocked)
1
The power supply voltage on the M1
connector is less than 80V
- Check with a multimeter the voltage on the L1-L2-
L3
connector. If the alarm occurs during the rotation
the reason could be that the power transformer is
not enough powerful: check that is at least 2KVA
2.0 Overvoltage
2
Input voltage over the range.
Due to excessive regeneration during
breaking the bus voltage has risen.
- Check with a multimeter the voltage on the L1L2-
L3
connector (220+10%).
- Check that the inertia and unbalancing applied to
the turret does not exceed the stated limits and
also the profile selected with the dipswitch is
appropriate to the load condition
3.0 (A0) Failed attempt to save data in EEPROM
3
Contact Baruffaldi service
3.1 (A1) EEPROM contains altered data
Contact Baruffaldi service
3.2 (A2) Absolute sensor alarm
Contact Baruffaldi service
3.3 (A4) Radiator thermal alarm
Contact Baruffaldi service
4.0 During unlocking the turret stays closed [Li.12=Off, Li.13=On]
4
After 30” from the unlocking command
(Lo.15) there isn’t the signal from the
unlock proximity switch (Li.12) and the
turret remains closed (Li.13 = On)
Check the functionality of proximity switch.
- Check the hydraulic/pneumatic circuit.
- Check the electro valve/auxiliary relays
connection
4.1 No signal from unlock proximity switch [Li.12=Off, Li.13=Off]
10
After 30” from the unlocking command
(Lo.15) there isn’t the signal from the
unlock proximity switch (Li.12) and the
lock proximity switch is Off (Li.13)
- Check the functionality of proximity switch.
Remove the upper cover and verify that the
movement of the pin is not hindered.
- Check the hydraulic/pneumatic circuit. If present
- Check the live tool disengaging and the live tool
disengaged signal functionality
4.2 Lock proximity switch in short circuit [Li.12, Li.13=On]
11
During unlocking sequence, the lock
proximity switch remains On (Li.13)
- Check the functionality of lock proximity switch
4.3 The unlock proximity switch signal has been lost during rotation [Li.12=Off]
12
During the rotation the unlock proximity
switch(Li.12) is lost
- Check the functionality of unlock proximity switch
- Check the connection on turret pin 12 (both side
client and turret) and on M4 connector
5.0 During locking the turret stays unlocked [Li.12=On, Li.13=Off]
5
After 30” from the locking command
(Lo.16) there isn’t the signal from the lock
proximity switch (Li.13) and the turret
remains unlock (Li.12 = On
- Check the functionality of proximity switch.
- Check the hydraulic/pneumatic circuit
- Check the electrovalve/auxiliary relais connection