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PLC User's Manual - Positioning Control Edition
Built-in Positioning Functions
2 Specifications
2.5 Output Specifications
B - 23
A
Common Items
B
Built-in
Positioning
Functions
Apx.
Example
Connection
2.5 Output Specifications
2.5.1 FX3U Series main unit (Transistor Output)
This section describes the transistor output specifications of the FX3U Series main unit. Please note that the
simultaneous turning-on rate is restricted for the output extension units and the main unit. For details on the
restriction, refer to the following manual.
For MELSERVO Series amplifiers, use a sink input/sink output type PLC.
→ Refer to the FX
3U Hardware Edition.
Pulse output terminals Y000, Y001, and Y002 are high-speed response output terminals.
To use the positioning instruction, adjust the load current of the NPN open collector to 10 to 100 mA (5 to 24V DC)
.
1. Sink internal output circuit
*1. To ground the unit, refer to the servo amplifier (drive unit) manual. If the grounding method is not
specified, carry out class-D grounding.
Item Transistor output specifications
External voltage All outputs 5 to 30V DC
Maximum load
Resistance load All outputs
The total load current of resistance loads per common termi-
nal should be the following value or less.
- 1 point output common:0.5A
- 4 points output common:0.8A
- 8 points output common:1.6A
Inductive load All outputs 12W/24V DC
Open-circuit leakage current All outputs 0.1 mA or less at 30V DC
ON voltage All outputs 1.5V or less
Response time
OFF→ON
Y000 to Y002 5 µs or less at 10 mA or more (5 to 24V DC)
Y003 and more 0.2 ms or less at 200 mA (at 24V DC)
ON→OFF
Y000 to Y002 5 µs or less at 10 mA or more (5 to 24V DC)
Y003 and more 0.2 ms or less at 200 mA (at 24V DC)
Circuit insulation All outputs Photocoupler insulation
Indication of output motion - LED is lit when the photocoupler is driven.
Item Description
Operation voltage range 5 to 24V DC
Operation current range 10mA to 100mA
Output frequency 100 kHz or less
FX
3U
Series
main unit
Grounding
*1
Servo amplifier
(Drive unit)
5 to 24V DC
Pulse train signal
Direction signal
Y000
COM1
Y004
COM2