Outline Of Product; Outside Dimension - Mitsubishi FX2N-2LC User Manual

1. Outline of Product

Cautions on design
• Install a safety circuit outside the PLC so that the entire system conservatively operates even if
an abnormality occurs in the external power supply or a failure occurs in the PLC.
If the safety circuit is installed inside the PLC, malfunction and erroneous output may cause
accidents.
Make sure to construct an emergency stop circuit, protection circuit, interlock circuit to prevent
damage to a machine or instrument outside the PLC.
• When the PLC or FX
value error by the self-diagnosis circuit, and all outputs turn off. When an abnormality occurs in
the I/O control area which cannot be detected by the CPU in the PLC, output control may be
disabled.
Design external circuits and the structure so that the entire system conservatively operates in
such cases.
• When a failure occurs in a relay, transistor, triac, etc. in the FX
outputs may keep ON or OFF.
For output signals which may lead to severe accidents, design external circuits and the struc-
ture so that the entire system conservatively operates.
Caution on disposal
• When disposing of the unit, treat it as industrial waste.
The temperature control block FX
equipped with two temperature input points and two transistor (open collector) output points is a special
block to control outputs of temperature inputs from thermocouples and platinum resistance thermometer
bulbs by PID control.
Connect the FX -2LC to the FX
2N
1) As input sensors, two thermocouples, two platinum resistance thermometer bulbs or one thermocouple
and one platinum resistance thermometer bulb are available.
2) Data can be read and written using FROM/TO instructions when the FX
FX /FX /FX
1N 2N 2NC
(The FX -2LC performs arithmetic operation for PID control and output control. The PLC does not
2N
have to perform such control.)
3) Disconnection of heaters can be detected by current detection.
4) The proportional band, the integral time and the derivative time can be easily set by auto tuning.
5) Channels are isolated from each other.

2. Outside Dimension

4(0.16)
Extension
cable
FX -2LC
2N
55(2.17)
Mounting hole 2-Φ4.5
-2LC detects an abnormality such as a watch dog timer error or input
2N
-2LC (hereafter referred to as "temperature control block" or "FX
2N
/FX /FX
1N 2N
/FX Series PLC.
3U
Connector for next
step extension cable
POWER
24V
OUT1
OUT2
Status indicator LED
DIN rail mounting hook
/FX Series PLC.
2NC 3U
87(3.43)
Unit : mm (inch)
Mass: 0.3kg
Terminal screws M3 (0.12)
-2LC or output unit of PLC,
2N
-2LC is connected to the
2N
DIN rail
(width: 35 mm)
mounting groove
-2LC")
2N
Terminal block