Description of Manual (Built-in Positioning Function)
4. If the high-speed output special adapter is connected to the FX 3U Series main unit, the output numbers will be assigned in the same way as the main unit
If an output number assigned to a high-speed output special adapter is turned on by the sequence program, the corresponding output of the main unit will also be turned on. Do not connect a line to both output terminals. Connect a line to only one of the output terminals.
The outputs of the high-speed output special adapter and the main unit will be turned on as shown in the following table:
*1. The output frequency limit of the main unit transistor output is 100 kHz. When operating a load with a pulse frequency exceeding 100 kHz, PLC failure may occur.
*2. Furthermore, use of the PWM (FNC 58) is not recommended with the relay type main unit and the high-speed adapters due to chattering of the relay contacts.
*3. The PWM instruction dose not support the triac output due to response delay of outputs.
Pulse output destination Rotation direction signal
1st Y000 Y004
Y001 Y005
2nd Y002 Y006
Y003 Y007
Unit
Output operation PLSY,PLSR,DSZR,
DVIT,TBL,ZRN,PLSV, DRVI,DRVA instruction.
PWM instruction Other
instruction
FX3USeries main unit of relay output type
While instruction is activated, relevant output is ON. (LED is also ON.)
Use of the PWM (FNC 58) instruction is not
compatible with a relay type main unit.*2 Operated FX3USeries main unit
of transistor output
type Operated*1 Operated Operated
FX3USeries main unit of triac output type
While instruction is activated, relevant output is ON. (LED is also ON.)
Use of the PWM (FNC 58) instruction is not
compatible with a triac type main unit.*3 Operated
High-speed output
special adapter Operated
Operated
The main unit should use the transistor output type.*2
Operated
FX /FX /FX /FX /FX PLC User's Manual - Positioning Control Edition Built-in Positioning Functions
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Common Items
Functions Positioning
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Built-inApx.
Connection Example 1.5 Assignment of Input/Output NumbersBlock diagram
FX3U Series main unit
Y006 Y007 Y000 Y001 Y002 Y003 Y004 Y005
FX3U-2HSY -ADP
Y000 Y001 Y004 Y005 FX3U-2HSY
-ADP
Y002 Y003 Y006 Y007
Sequence program
FNC159
DRVA K15000 K10000 Y001 Y005
FNC159
DRVA K10000 K10000 Y002 Y006 FNC158
DRVI K30000 K20000 Y000 Y004
FNC158
DRVI K1000 K5000 Y003 Y007
1st
2nd
FX /FX /FX /FX /FX PLC User's Manual - Positioning Control Edition Built-in Positioning Functions
2. Specifications
DESIGN PRECAUTIONS
• Make sure to have the following safety circuits outside of the PLC to ensure safe system operation even during external power supply problems or PLC failure.
Otherwise, malfunctions may cause serious accidents.
1) Most importantly, have the following: an emergency stop circuit, a protection circuit, an interlock circuit for opposite movements (such as normal vs. reverse rotation), and an interlock circuit (to prevent damage to the equipment at the upper and lower positioning limits).
2) Note that when the PLC CPU detects an error, such as a watchdog timer error, during self-diagnosis, all outputs are turned off. Also, when an error that cannot be detected by the PLC CPU occurs in an input/output control block, output control may be disabled.
External circuits and mechanisms should be designed to ensure safe machinery operation in such a case.
3) Note that when an error occurs in a relay, triac or transistor output device, the output could be held either on or off.
For output signals that may lead to serious accidents, external circuits and mechanisms should be designed to ensure safe machinery operation in such a case.
DESIGN PRECAUTIONS
• Do not bundle the control line together with or lay it close to the main circuit or power line. As a guideline, lay the control line at least 100mm (3.94") or more away from the main circuit or power line.
Noise may cause malfunctions.
• Install module so that excessive force will not be applied to the built-in programming port, power connectors, I/O connectors.
Failure to do so may result in wire damage/breakage or PLC failure.
DISPOSAL PRECAUTIONS
• Please contact a certified electronic waste disposal company for the environmentally safe recycling and disposal of your device.
TRANSPORTATION AND STORAGE PRECAUTIONS
• Before transporting the PLC, turn on the power to the PLC to check that the BATT (BAT) LED is off, and check the battery life.
If the PLC is transported with the BATT (BAT) LED on or the battery exhausted, the battery-backed data may be unstable during transportation.
• The PLC is a precision instrument. During transportation, avoid impacts larger than those specified in the general specifications of the PLC main unit manual. Failure to do so may cause failures in the PLC. After transportation, verify the operations of the PLC.
FX /FX /FX /FX /FX PLC User's Manual - Positioning Control Edition
Built-in Positioning Functions 2.1 General Specifications
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Common Items
Functions Positioning
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Connection Example2.1 General Specifications
For the FX3S/FX3G/FX3GC/FX3U/FX3UC PLC general specifications, refer to the Hardware Edition manual of each PLC. Note that the high-speed output special adapter general specifications are the same as the PLC excluding the specifications shown in the following table.
2.2 Power Supply Specifications
For the FX3S/FX3G/FX3GC/FX3U/FX3UC PLC power supply specifications, refer to the Hardware Edition manual of each PLC. The power supply specifications of the high-speed output special adapter are shown in the following table.
Item Specifications
Withstand voltage 500V AC, for 1 minute
Between output terminal of high-speed output special adapter and grounding terminal of PLC.
Insulation resistance 5M or more using 500V DC insulation tester
Item Specifications
Output circuit drive power supply
24V DC, 60 mA
The service power of the main unit is supplied internally.
Adapter drive power supply
5V DC, 30 mA
The adapter driver power is internally supplied from the 5V DC power supply unit of the main unit.
FX /FX /FX /FX /FX PLC User's Manual - Positioning Control Edition
Built-in Positioning Functions 2.3 Performance Specifications
2.3 Performance Specifications
*1. For MELSERVO Series amplifiers, use a sink input/sink output type PLC.
*2. Can only be connected to the FX3U PLC. Up to 2 adapters can be connected.
*3. If 2 adapters are connected, Y000 to Y007 will be used. If only one adapter is connected, Y000, Y001, Y004, and Y005 will be used. The relation between the output of the FX3U-2HSY-ADP and the output of main unit is described in the following sections.
To use high-speed output special adapters, refer to Subsection 1.5.3 and Section 4.9 of "B. Built-in Positioning Function".
Model
FX3G (14-point and 24-point type) /FX3S/FX3GC
PLC*1 (main unit, transistor output)
FX3G (40-point and 60-point type) /FX3U/FX3UC PLC*1
(main unit, transistor output)
FX3U-2HSY-ADP*2
Number of control axes 2 independent axes 3 independent axes
2independent axes (Connect 2 adapters to the main unit to control 4 axes
independently.)
Interpolation -
-Pulse output form Transistor Differential line driver
Pulse output method "Pulse train + direction" method
"Pulse train + direction"
method
"Forward/reverse rotation pulse train" method
Maximum frequency 100,000Hz 200,000Hz
Acceleration/
deceleration type Trapezoidal acceleration/deceleration
Unit pulse
Positioning range -999,999 to +999,999 (pulse)
Program language Sequence program
Position data 1 point (set in sequence program)
Connection of manual
pulse generator -
-Detection of absolute position
(Reads out the current value of ABS.)
ABS instruction
Others
Pulses can be output from the general-purpose outputs (Y000 and Y001) of the main unit.
Pulses can be output from the general-purpose outputs (Y000, Y001 and Y002) of the main unit.
• To be used when a servo amplifier with a
differential line receiver is connected.
• To be used when positioning control is performed with a FX3U
Series relay output type or triac output type main unit.
• Used in place of the general-purpose outputs (Y000 to Y007)*3 of the main unit.
FX /FX /FX /FX /FX PLC User's Manual - Positioning Control Edition
Built-in Positioning Functions 2.4 Input Specifications
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Common Items
Functions Positioning
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Connection Example2.4 Input Specifications
2.4.1 FX
3SSeries main unit (24 V DC Input)
This section describes the input specifications of the FX3S Series main unit. Note that the simultaneous turning-on rate is restricted for the main unit. For details on this restriction, refer to the following manual:
Refer to the FX3S Hardware Edition.
*1. If inputs X000 to X005 are assigned to the zero-phase signal of the DSZR instruction or the near-point signal (DOG) of the ZRN instruction, the input response time will be as shown in the following table.
1. Internal input circuit