M.DRIVE.DB-21.GEN.ENG
Ed.
2021 Rev.04
Pag. 23 di 31
5.1 No signal from lock proximity switch [Li.12=Off, Li.13=Off]
16
After 30” from the locking command
(Lo.16) there isn’t the signal from the
lock proximity switch (Li.13) and the unlock
proximity switch is Off (Li.12
- 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.
- Check the turret setup made with the dipswitch
- Check the drive configuration K2/K5
5.2 Unlock proximity switch in short circuit [Li.12, Li.13=On]
17
During locking sequence the unlock
proximity switch remains On (Li.12)
Check the functionality of unlock proximity switch
5.3 The lock Px switch signal has been lost during work (turret indexed) [Li.13=Off]
18
During working phase, the lock proximity
switch (Li.13) has been lost.
Check the functionality of lock proximity switch
5.7 Turret not locked at the start up [Li.13=Off]
30
At the start up the drive gives a
command for locking the turret, if the
lock proximity switch (Li.13) is off the
alarm is activated
- Check the functionality of proximity switch.
- Check the hydraulic/pneumatic circuit.
- Check the electrovalve/auxiliary relais connection
6.2 Zero search error
22
This alarm occurs when at the end of zero
search also hidden, the turret is closed
and the resolver value is different from
the value stored with the resolver
acquisition sequence
If the turret has reached the station N°1 to repeat
the acquisition of position resolver otherwise
remove the back cover of the turret and with turret
locked in station N°1, verify that the mechanical
position of the zero camshaft as the same shown in
the picture below
6.3 Positioning error
23
This alarm occurs at the end of a position
inquiry with turret locked in a position
different from that expected.
The value of the resolver calculated on
the basis of the acquisition value differs
from the final position resolver
Check at start up that the drive SETUP matches the
turret in use (K2/K5/K3).
Be sure the proper setup of the dipswitch according
to the turret in use (transmission ratio and number
of stations page 7)
7.0 No signal from Zero proximity switch
7
After to call a zero research (hidden too)
Zero proximity switch (Li.14) is always Off
- Check the functionality of zero proximity switch
- Check the calibration of zero cam
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