DUPLOMATIC
E.M.6427 RELEASE 7.1 05-03
6427071-230-en 10
INDEXD SIGNAL
The INDEXD signal must be used with the LOCKED signal to detect the end of cycle of the turret
and can be ignored once the turret is locked.
The INDEXD output goes and stay LOW also when the emergency mode is set and if the three-
phase power supply is OFF.
In this case, if the turret management from PLC/CNC uses the emergency mode or open the
power contactor, the INDEXD signal must be used only when the turret is in cycle and then
ignored.
The CNC/PLC program must check the LOCKED signal while the turret is not in cycle: if this
signal goes LOW stop immediately the machine and check the cause.
JOG MODE
The turret does not output the position code, so in JOG mode the actual position must be
memorised by the CNC / PLC.
Be sure to not show in the screen of CNC a tool position different from the reality.
We suggest to use always the automatic mode in order to force CNC to keep track of the turret
position.
ALARM CONDITIONS
When an alarm condition is detected, one or more of the ALBIT1, ALBIT2, ALBIT4 is high and the
INDEXD signal is low.
In this case the machine must be immediately stopped
and the three-phase power contactor
should be opened.
Important: the turret can show alarms in any time (also if it is not on cycle) so
check always the
alarm output of the turret.
EXCESSIVE ELECTRICAL NOISE OR BAD WIRING DETECTION
If the turret is not in cycle and in automatic mode, any variation in POSITION BITS and PARITY
must be followed by the PSTART signal.
If the PSTART does not came in about 5 seconds (T1) an alarm 7 (73) is output from the turret.
Avoid to change the position code just after the turret LOCKED signal goes high (end of cycle)
because this can be detected as a new position request.
See the diagnostic section to have more details.
AUTOMATIC RECOVER FOR PRESSURE/VALVES PROBLEMS
The turret will attempt three times to lock or unlock before giving an alarm (41 or 51).
If the operator hear the valve operated more timed during the tool change it is necessary to check
the cause of the problem and remove it before a permanent failure happens.
