Setting Of Creep Speed (Dszr/Zrn Instruction; Setting Of Maximum Speed - Mitsubishi Electric Melsec-F FX3GC Series User Manual

FX /FX /FX /FX /FX
3S 3G 3GC 3U 3UC
Built-in Positioning Functions
4.2.4

Setting of Creep Speed (DSZR/ZRN Instruction)

Use the related device or the operand of the instruction to set the creep speed.
The creep speed setting range is shown in the following table.
Be sure to set the creep speed so that the relation with the other speeds is "bias speed  creep speed 
*1
32767 Hz ".
Instruction
=Y000
D
1
DSZR
=Y001
D
1
instru-
=Y002
D
ction
1
=Y003
D
1
ZRN instruction
*1. If the maximum speed is set to less than 32767 Hz, note that this value (32767 Hz) will automatically
be changed to the maximum speed.
*2. Y002 is not available in FX
*3. Y003 is available only when two high-speed output special adapters are connected to the FX
4.2.5

Setting of Maximum Speed

Set the maximum speed to determine the upper limit value for the output pulse frequency and the zero return
speed.
Use the devices shown in the following table to determine the maximum speed for each pulse output
destination device.
Pulse output
destination device
Y000
Y001
*1
Y002
*2
Y003
*1. Y002 is not available in FX
*2. Y003 is available only when two high-speed output special adapters are connected to the FX
Caution:
• To use the main unit (transistor output), set the output pulse frequency (absolute value) to 100,000 Hz or less.
If more than 100,000 Hz is output from the transistor output of the main unit to perform operation, it may cause PLC
failure.
• Set the output pulse frequency so that the output pulse frequency value is less than the maximum frequency value
of the servo amplifier (driver unit).
B - 54
PLC User's Manual - Positioning Control Edition
Setting range
Operand or
16-bit
related
operation
device
(Hz)
D8345
D8355
10 to 32767
Initial value: 1000
*2
D8365
*3
D8375
10 to 32767
S
2
PLC (14-point and 24-point type) and FX
3G
Maximum
Initial value
speed
D8344,D8343
D8354,D8353
100,000Hz
D8364,D8363
D8374,D8373
PLC (14-point and 24-point type) and FX
3G
For operation of DSZR instruction, refer to Section 6.2.
For operation of ZRN instruction, refer to Section 6.3.
32-bit
operation
(Hz)
DSZR
ZRN
Transistor output of main
unit
10 to 100,000 Hz:
If the value is set to 9 Hz or
less, the maximum speed will
be automatically set to 10 Hz.
4 Before Programming
4.2 Setting of Various Items Regarding Speeds
Instruction format
• • •
S S D
1 2 1
• • •
S S S
1 2 3
/FX PLC.
3S 3GC
Setting range
High-speed output special
adapter
10 to 200,000 Hz:
If the value is set to 9 Hz or
less, the maximum speed will
be automatically set to 10 Hz.
/FX PLC.
3S 3GC
•
D
2
D•
PLC.
3U
PLC.
3U