Mitsubishi Electric MELDAS C6 Interface Manual page 146

B con-
Signal name
tact
—
TAP RETRACT POSSIBLE
[Function]
This signal informs that tap retract is possible, and is output if operation is stopped during tap cycle
execution.
The tap retract signal (TRV) will be valid when this signal (TRVE) is ON.
[Operation]
(1) This signal turns ON when tap cycle is stopped in the cutting feed area (between c-d-e in the
drawing) due to the following causes:
• Emergency stop.
• Reset stop.
• Power OFF (only in absolute position detection system).
(2) This signal turns OFF in the following cases:
• Tap retract is executed and completed.
• Tap axis is moved manually or with manual mode.
[Related signal]
Tap retract (TRV: Y75C)
6. EXPLANATION OF INTERFACE SIGNALS
6.1 PLC Input Signals (Bit Type: X***)
Signal
abbreviation
TRVE
Tap cycle command
a b
c
Tap feed (spindle
normal run)
d
Tap base
1st system
X66D
f Initial point
e R point
(Spindle
reverse run)
6-1-57
2nd system 3rd system
X6ED X76D