External Wiring For Relay Output; Output Specifications (Main Unit) Relay Output - Mitsubishi FX3U-?*MR/ES User Manual

FX Series Programmable Controllers
3U
User's Manual - Hardware Edition
12.2

External Wiring for Relay Output

This section explains the relay output specifications (main unit) and external wiring.
• For the main unit, refer to Subsection 12.2.1 "Output specifications (main unit) relay output", Subsection
12.2.3 "Handling of relay output", Subsection 12.2.4 "External wiring precautions" and Subsection 12.2.5
"Example of external wiring" in this section.
• For the input/output powered extension units/blocks, refer to Subsection 12.2.3 "Handling of relay output"
and Subsection 12.2.4 "External wiring precautions" in this section. For their specifications and examples
of wiring, refer to the specification for each model.
→ For the specifications on the input/output powered extension unit, refer to Chapter 15.

12.2.1 Output specifications (main unit) relay output

Item
Number of output
points
Output connecting
type
Output form
External power
supply
Resistance
load
Max. load
Inductive
load
Min. load
Open circuit leakage
current
OFF ON
Response
time
ON OFF
Circuit insulation
Display of output
operation
Output circuit
configuration
Number of output points per common terminal
• On FX -16MR/ S, one common terminal is used for one output point.
3U
• On models other than FX
232
→ For the specifications on the input/output extension block, refer to Chapter 16.
FX -32MR/
3U
S
FX -16MR/
3U
S
FX -32MR/
3U
UA1
8 points 16 points
Fixed terminal
block
(M3 screw)
(250V AC or less when the unit does not comply with CE, UL or cUL standards)
The total load current of resistance loads per common terminal should be the following
value.
• 1 output point/common terminal: 2 A or less
• 4 output points/common terminal: 8 A or less
• 8 output points/common terminal: 8 A or less
LED on panel lights when power is applied to relay coil.
Load
DC power
supply
Fuse
Load
External
power supply
Fuse
A common number applies to the
-16MR/ S, one common terminal is used for four or eight output points.
3U
Relay output specifications
FX
3U
FX -48MR/
3U
S
FX
3U
24 points 32 points
Removable terminal block (M3 screw)
Relay
30V DC or less or 240V AC or less
2 A/point
→ For details on the common terminal for each model,
80 VA
→ For the product life, refer to Subsection 12.2.2.
→ For cautions on external wiring, refer to Subsection 12.2.4.
5V DC, 2mA (reference value)
−
Approx. 10ms
Approx. 10ms
Mechanical insulation
Y
COM
Y
COM
of [COM
12 Output Wiring Procedures
12.2 External Wiring for Relay Output
-64MR/
S
FX -80MR/ FX
3U
S
-64MR/
UA1
40 points
refer to the terminal block layout.
].
-128MR/
3U
ES
64 points