Setting Of Bias Speed; Setting Of Acceleration Time; Setting Of Deceleration Time - Mitsubishi MELSEC-F FX3U Series User Manual

FX /FX Series PLC User's Manual - Positioning Control Edition
3U 3UC
Built-in Positioning Function
4.2.6

Setting of Bias Speed

To control the stepping motor using each instruction, set the bias speed considering the resonance range of
the stepping motor and the automatic start frequency.
Use the devices shown in the following table to determine the bias speed for each pulse output destination
device.
Pulse output
destination device
Y000
Y001
Y002
*1
Y003
*1. Devices related to Y003 (pulse output destination) are valid only if two FX
connected to the FX
4.2.7

Setting of Acceleration Time

Set the time required for acceleration from the bias speed to the maximum speed.
If the output pulse frequency is less than the maximum speed, the actual acceleration time will be shorter than
the set acceleration time.
If the variable speed pulse output (PLSV) instruction is used, the set acceleration time will be valid during
acceleration/deceleration (M8338 = ON) only.
Use the devices shown in the following table to determine the acceleration time for each pulse output
destination device.
Pulse output
destination device
Y000
Y001
Y002
*1
Y003
*1. Devices related to Y003 (pulse output destination) are valid only if two FX
connected to the FX
4.2.8

Setting of Deceleration Time

Set the time required for deceleration from the maximum speed to the bias speed.
If the output pulse frequency is less than the maximum speed, the actual deceleration time will be shorter
than the set deceleration time.
If the variable speed pulse output (PLSV) instruction is used, the set deceleration time will be valid during
acceleration/deceleration (M8338 = ON) only.
Use the devices shown in the following table to determine the deceleration time for each pulse output
destination device.
Pulse output
destination device
Y000
Y001
Y002
*1
Y003
*1. Devices related to Y003 (pulse output destination) are valid only if two FX
connected to the FX
B - 34
Bias speed
Initial value
D8342
D8352
0Hz
D8362
D8372
PLC.
3U
Acceleration
Initial value
Time
D8348
D8358
100ms
D8368
D8378
PLC.
3U
Acceleration
Initial value
Time
D8349
D8359
100ms
D8369
D8379
PLC.
3U
4.2 Setting of Various Items Regarding Speeds
Setting range
1/10 or less of maximum speed:
If the value is set to more than 1/10 of the maximum speed,
the bias speed will be automatically set to 1/10 of the
maximum speed.
Setting range
50 to 5,000 ms:
If the value is set to 49 ms or less, the acceleration time will
be automatically set to 50 ms. If the value is set to 5,001 ms
or more, the acceleration time will be automatically set to
5,000 ms.
Setting range
50 to 5,000 ms:
If the value is set to 49 ms or less, the deceleration time will
be automatically set to 50 ms. If the value is set to 5,001 ms
or more, the deceleration time will be automatically set to
5,000 ms.
4 Before Programming
-2HSY-ADP adapters are
3U
-2HSY-ADP adapters are
3U
-2HSY-ADP adapters are
3U