Mitsubishi FX2N-2LC User Manual page 8

5. Wiring
Cautions on wiring
• Make sure to shut down the power supplies of all phases on the outside before starting installation
or wiring.
If the power supplies are not shut down, you may receive an electrical shock or the unit may be
damaged.
• As to loads, such as a connector for normal rotation and a connector for reverse rotation,
which are dangerous when turning on at the same time, make sure to interlock them outside
the PLC in addition to interlocking of them in a program in the PLC.
• Correctly connect the power cable of the FX -2LC and the PLC as described in this manual.
2N
If the AC power supply is connected to a DC I/O terminal or DC power terminal, the PLC may
be damaged.
• Perform Class D grounding with an electric wire of 2 mm
FX -2LC and the PLC. However, never perform common grounding with a strong power system.
2N
When a temperature sensor is a thermocouple
AC power
supply
DC24V
- +
FX -2LC
2N
24+
24-
*1
SSR
OUT1
COM
SSR
OUT2
CT
CT
CT
PTA/
FG Shielded cable
Heater
PTB/TC+
Thermocouple
PTB/TC-
CT
CT
CT
PTA/
FG Shielded cable
Heater
PTB/TC+
Thermocouple
PTB/TC-
When a temperature sensor is a resistance thermometer bulb
FX -2LC
2N Resistance
thermometer bulb
Shielded cable
PTA/
FG
PTB/TC+
PTB/TC-
6. Specifications
6.1 General specifications
Item Specifications
500V AC for 1 minute
Withstand voltage
(between analog input terminal and grounding terminal)
Other General specifications are equivalent to those for the PLC main unit. Refer to the manual of the PLC
main unit.
6.2 Power supply specifications
Item Specifications
24V DC (-15% to +10% maximum), input from driving power
Driving power supply
supply terminal
Power supply for
5V DC (supplied from inside of PLC main unit)
communication
Current consumption 24V DC, 55 mA and 5V DC, 70 mA
Analog input area and PLC are insulated by photocoupler.
Insulation method Power supply and analog input are insulated by DC/DC converter.
(Channels are insulated from each other.)
Number of occupied
8 points in total (including input points and output points)
I/O points
6.3 Performance specifications
Item
Control method
Control operation
period
Set temperature
range
Heater disconnection
detection
Operation mode
Self-diagnosis
function
2
or more to the grounding terminal in the
Memory
POWER
24V
Indication
OUT1
OUT2
*1 Connect the ground terminals of
6.4 Input specifications
the FX -2LC unit and the main
2N
unit. Use class D grounding on
Item
the main unit.
Number of input points
• Use the compensating cable
Input
when you use the thermo couple.
type
Measurement precision
Cold contact tempera-
ture compensation error
Tempera-
Resolution
ture input
Sampling period
Effect of external resis-
tance
Input impedance
Sensor current
Allowable input lead wire
resistance
Operation when input is
disconnected
• The temperature sensor must use
three line type. Operation when input is
The resistance of the lead wire is a short-circuited
little, and use the wire rod without
Number of inputs
the resistance difference between
Current detector
three lines.
Heater current
• Secure the termination using a CT input measurement value
tightening torque of 0.5 to 0.8N m
Measurement precision
Sampling period
6.5 Input range
Sensor type
Input range
Sensor type
Input range
Description
Two-position control, PID control (with auto tuning function), PI control
500ms
Equivalent to input range
Alarm is detected by buffer memory
(Variable within range from 0.0 to 100.0 A.).
0: Measured value monitor
1: Measured value monitor + Temperature alarm
2: Measured value monitor + Temperature alarm + Control
(selected by buffer memory)
Adjustment data check, input value check, watch dog timer check.
Built-in EEPROM (Number of times of overwrite: 100,000 times)
Lit (green): While 5V power is supplied Extinguished: While 5V power is not supplied
Lit (red): While 24V power is supplied Extinguished: While 24V power is not supplied
Lit ( red ): While control output 1 is ON Extinguished: While control output 1 is OFF
Lit (red): While control output 2 is ON Extinguished: While control output 2 is OFF
Description
2 points
Thermocouple K, J, R, S, E, T, B, N, PLII, WRe5-26, U, L, JIS C 1602-1995
Resistance ther-
3-wire Pt100 JIS C 1604-1997, JPt100 JIS C 1604-1981
mometer bulb
Ambient temperature 23 °C ± 5 °C : ± 0.3% of range span ± 1 digit.
Ambient temperature 0 °C to 55 °C : ± 0.7% of range span ± 1 digit.
However, 0 to 399 °C (0 to 799 °F) in B inputs as well as 0 to 32 °F in
PLII and WRe5-26 inputs are outside precision guarantee range.
Within ±1.0 °C
However, within ± 2.0 °C while input value is -150 to -100 °C
within ± 3.0 °C while input value is -200 to -150 °C
0.1 °C (0.1°F) or 1 °C(1°F) (Varies depending on input range of used
sensors.)
500ms
Approx. 0.35 µV/Ω
1 MΩ or more
Approx. 0.3 mA
10 Ω or less
Upscale
Downscale
2 points
CTL-12-S36-8 or CTL-6-P-H (manufactured by U.R.D. Co., Ltd.)
When CTL-12 is used: 0 to 100A When CTL-6 is used: 0 to 30A
Larger one between ± 5% of input value and 2 A
(excluding precision of current detector)
1 second
K J R
-200.0 to 200.0 °C
-200.0 to 200.0 °C
-100.0 to 400.0 °C
-100.0 to 400.0 °C
-100.0 to 800.0 °C 0 to 1700 °C
-100 to 1300 °C
-100 to 1200 °C 0 to 3200 °F
-100 to 800 °F
-100 to 1600 °F
-100 to 2400 °F
-100 to 2100 °F
E T B
-200.0 to 200.0 °C
-200.0 to 400.0 °C
-200.0 to 200.0 °C
0.0 to 400.0 °C 0 to 1800 °C
0 to 1000 °C
-300.0 to 400.0 °F 0 to 3000 °F
0 to 1800 °F
-300.0 to 700.0 °F
0.0 to 700.0 °F
Sensor type PLII
0 to 1200 °C
Input range
0 to 2300 °F
Sensor type JPt100
-50.0 to 150.0 °C
-200.0 to 500.0 °C
Input range
-300.0 to 300.0 °F
-300 to 900 °F
°C
• When B is used, 0 to 399 (0 to 799
°
• When PLII is used, 0 to 32 F is outside the precision guarantee range.
°
• When WRe5-26 is used, 0 to 32 F is outside the precision guarantee range.
6.6 Output specifications
Item
Number of output points 2 points
Output method Open collector transistor output
Rated load voltage 5 to 24V DC
Maximum load voltage 30V DC or less
Maximum load current 100mA
Leak current in OFF status 0.1 mA or less
Maximum voltage drop in ON status 2.5V (maximum) or 1.0V (typical) at 100 mA
Control output cycle 30 seconds (Variable within range from 1 to 100 seconds)
Guidelines for the safety of the user and protection of the FX
• This manual has been written to be used by trained and competent personnel. This is defined
by the European directives for machinery, low voltage and EMC.
• If in doubt at any stage during the installation of the FX
electrical engineer who is qualified and trained to the local and national standards. If in doubt
about the operation or use of the FX
distributor.
• Under no circumstances will Mitsubishi Electric be liable or responsible for any consequential
damage that may arise as a result of the installation or use of this equipment.
• All examples and diagrams shown in this manual are intended only as an aid to understanding
the text, not to guarantee operation. Mitsubishi Electric will accept no responsibility for actual
use of the product based on these illustrative examples.
• Owing to the very great variety in possible application of this equipment, you must satisfy
yourself as to its suitability for your specific application.
S
0 to 1700 °C
0 to 3200 °F
Manual number : JY992D85601
Manual revision : C
N
Date
0 to 1300 °C
0 to 2300 °F
HEAD OFFICE : TOKYO BUILDING, 2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
HIMEJI WORKS : 840, CHIYODA CHO, HIMEJI, JAPAN
JY992D85601C
WRe5-26 U L
0 to 2300 °C -200.0 to 600.0 °C 0.0 to 900.0 °C
0 to 3000 °F -300.0 to 700.0 °F 0 to 1600 °F
Pt100
-50.0 to 150.0 °C
-200.0 to 600.0 °C
-300.0 to 300.0 °F
-300 to 1100 °F
°
F) is outside the precision guarantee range.
Description
-2LC
2N
-2LC always consult a professional
2N
-2LC please consult the nearest Mitsubishi Electric
2N
: March 2007
Effective March 2007
Specifications are subject to
change without notice