Mitsubishi Electric Melsec-F FX3GC Series User Manual page 95

FX /FX /FX /FX /FX
3S 3G 3GC 3U 3UC
Built-in Positioning Functions
3. Zero return instruction with DOG search function (DSZR)
For this instruction, it is necessary to specify the maximum speed, bias speed, acceleration time, deceleration
time, zero return speed, and creep speed using the related devices.
Current value register = "0"
Zero-phase signal
*1
(X000 to X007)
CLEAR signal
*1. X000 to X005 for FX
4. Zero return (ZRN) instruction
For this instruction, it is necessary to specify the maximum speed, bias speed, acceleration time, and
deceleration time using the related devices in addition to the zero return speed and the creep speed specified
by the operand of the instruction.
CLEAR signal
PLC User's Manual - Positioning Control Edition
For details on each setting item, refer to Subsection 4.2.3 to Subsection 4.2.8.
Creep speed
Initial value:
1,000 Hz
Rear end
1 ms or less
20 ms + 1 scan time (ms)
PLC.
3S
For details on each setting item, refer to Subsection 4.2.5 to Subsection 4.2.8.
Deceleration time
Initial value:
100 ms
Creep speed S
2•
DOG
Rear end
1 ms or less
20 ms + 1 scan time (ms)
For operation of DSZR instruction, refer to Section 6.2.
Deceleration time
Initial value:
100 ms
Maximum speed
Initial value:
100,000 Hz
Zero return speed
Initial value: 50,000 Hz
DOG
Front end
For operation of ZRN instruction, refer to Section 6.1.
Maximum speed
Initial value:
100,000 Hz
Zero return speed
•
S
1
Bias speed
Initial value: 0 Hz
Current position
Front end
4 Before Programming
4.2 Setting of Various Items Regarding Speeds
Acceleration time
Initial value:
100 ms
Bias speed
Initial value: 0 Hz
Current position
Acceleration time
Initial value:
100 ms
B - 51
A
B
Apx.