Mitsubishi Electric M80V Series Manual page 453

M800V/M80V Series PLC Interface Manual
4 Explanation of Interface Signals
4.3 PLC Output Signals (Bit Type: Y***)
Normal tap cycle
Tap cycle command
Initial point
R point
Tap feed
(spindle
(spindle
reverse run)
forward run)
Tap base
(NC)Tap cycle command
(NC)During tap cycle
Emergency stop
(NC)Tap retract possible(TRVE)
(PLC)Tap retract(TRV)
(NC)Tap retract operation
Note
(1) The "Tap retract possible" signal (XCA5) is turned ON when the reset or emergency stop occurs during tapping oper-
ation. (The "Tap retract possible" signal (XCA5) is not turned ON even when the reset or the emergency stop occurs
in the area other than the area between R point and tap bottom.)
(2) The tap retract is started when the "Tap retract" signal (YC5C) is turned ON while the "Tap retract possible" signal
(XCA5) is ON. The tap retract is interrupted when the "Tap retract" signal (YC5C) is turned OFF during the tap retract.
(3) When an emergency stop or reset occurs, the tap retract is not performed even if the "Tap retract" signal (YC5C:
TRV) is turned ON.
(4) When the parameter "#1234 set06/bit3" is set to "0", the tap retract operation is not performed even if the "Tap retract"
signal (YC5C: TRV) is turned ON while the operation error (M01 0057) occurs.
(5) Even in the R point return mode, the tap retract is performed till the initial point.
<Feedrate at the tap retract>
The tap retract is performed at the following feedrate.
Tap retract feedrate = Tap cycle feedrate x Tapping retract override
(The tapping retract override is set with the parameter "#1171 taprov".)
However, after the power is turned ON again, the tap retract is performed at the Z phase detection speed when "#3106
zrn_typ/bit3" is set to "1" (Phase Z detection operation ON) and the Z phase detection speed is less than the tap retract
feedrate.
When the parameter "#13018 SP018 SPEC2/bit5" is set to "1" and "#1239 set11/bit0" is set to "1", the spindle speed at
the tap retract is clamped at "#13028 SP028 SDTS" (Speed detection set value).
IB-1501616-D
(a)
R point
Tap feed
(spindle
Tapping
forward run)
(b)
Emergency stop
(c) Interruption
(d)
Emergency
stop release
(a)
(b)
(d)
(c)
(e)
Tap retract operation
440
Tap retract operation
Tap cycle command
Stop
(g)
Initial point
(f)
Tap retract
(spindle
reverse run)
(e)
Tap retract
Tap base
(f) (g)