Mitsubishi Electric MELSECQ Series User Manual page 72

4 DATA USED FOR POSITIONING CONTROL
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OPR. 5 Creep speed
Set the creep speed after near-point dog ON (the low speed just before stopping
after decelerating from the OPR speed).
The creep speed is set within the following range.
( OPR. 4 OPR speed ) ≥ ( OPR. 5 Creep speed) ≥ ( Pr. 6 Bias speed at start)
Note) • The creep speed is related to the detection error when using the OPR
method with zero signal, and the size of the collision if a collision occurs
during OPR using the stopper.
• Set the "creep speed" to a value not more than " OPR. 4 OPR speed". If
the "OPR speed" is exceeded, "the "Setting range outside creep speed"
error (error code: 914) will occur.
• Set the "creep speed" to a value not less than " Pr. 6 Bias speed at start".
If it is less than the "bias speed at start", the "Setting range outside creep
speed" error (error code: 914) will occur.
V
Machine OPR control start
Near-point dog signal OFF
Zero signal
OPR. 6 ACC/DEC time at OPR
Set the time taken under machine OPR control to reach " OPR. 4 OPR speed"
from " Pr. 6 Bias speed at start" or to reach " OPR. 5 Creep speed" from
" OPR. 4 OPR speed".
(When OPR method is other than "Stopper 3")
V
Pr. 6
OPR. 6
search engine
OPR speed
OPR. 4
Bias speed at start
Pr. 6
ON
OPR. 4
OPR. 5
t
OPR. 6
MELSEC-Q
Creep speed
OPR. 5
(When OPR method is "Stopper 3")
V
Pr. 6
OPR. 5
t
OPR. 6
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