Mitsubishi Electric MELSEC-Q Series User Manual page 144

[Pr.7] Bias speed at start
Set the bias speed (minimum speed) upon starting. When using a stepping motor,
etc., set it to start the motor smoothly. (If the motor speed at start is low, the
stepping motor does not start smoothly.)
The specified "bias speed at start" will be valid during the following operations:
• Positioning operation
• HPR operation
• JOG operation
Set the value that the bias speed should not exceed "[Pr.8] Speed limit value".
[Pr.1] setting value
0 : mm 0.00 to 20000000.00 (mm/min)
1 : inch 0.000 to 2000000.000 (inch/min)
2 : degree 0.000 to 2000000.000 (degree/min)
3 : PLS 0 to 1000000000 (PLS/s)
1: Range of speed limit value when "[Pr.83] Speed control 10 x multiplier setting for degree axis"
is set to valid: 0.00 to 20000000.00 (degree/min)
2: Range of speed limit value when "[Pr.83] Speed control 10 x multiplier setting for degree axis"
is set to valid: 0 to 2000000000 (  10
Trapezoidal acceleration/deceleration (S-curve ratio is 0%)
Pr.8 Speed limit value
Da.8 Command speed
Pr.7 Bias speed at start
S-curve acceleration/deceleration (S-curve ratio is other than 0%)
Pr.8 Speed limit value
Da.8 Command speed
Pr.7 Bias speed at start
Value set with GX Works2 (unit)
degree/min)
-2
V
Actual acceleration time
Acceleration time
Pr.9 Acceleration time 0
Pr.25 Acceleration time 1
Pr.26 Acceleration time 2
Pr.27 Acceleration time 3
V
Actual acceleration time
Acceleration time
Pr.9 Acceleration time 0
Pr.25 Acceleration time 1
Pr.26 Acceleration time 2
Pr.27 Acceleration time 3
5 - 24
Chapter 5 Data Used for Positioning Control
Value set with sequence program (unit)
0 to 2000000000 (  10
0 to 2000000000 (  10
1 0 to 2000000000 (  10
0 to 1000000000 (PLS/s)
Actual deceleration time
Deceleration time
Pr.10 Deceleration time 0
Pr.28 Deceleration time 1
Pr.29 Deceleration time 2
Pr.30 Deceleration time 3
Actual deceleration time
Deceleration time
Pr.10 Deceleration time 0
Pr.28 Deceleration time 1
Pr.29 Deceleration time 2
Pr.30 Deceleration time 3
-2
mm/min)
-3
inch/min)
-3
degree/min) 2
t
t