IL05003004E.pdf
1
ELC-EX08NNDR/T
ELC-EX16NNDR/T
ELC-EX08NNDN
ELC-EX08NNAN
ELC-EX08NNNR/T
ELC-EX06NNNI
Digital Input Digital Output Module
Instruction Sheet
WARNING
This Instruction Sheet provides descriptions for electrical specifications, installation & wiring.
This is an OPEN TYPE Controller. The ELC should be kept in an enclosure away from airborne dust, humidity,
electric shock risk and vibration. Also, it is equipped with protective methods such as some special tool s or keys to
open the enclosure, so as to avoid the hazard to users and the damage to the ELC.
DC type ELC never connect the AC main circuit power supply to any of the input/output terminals, as it will damage
the ELC. Check all the wiring prior to power up.
1 INTRODUCTION
1.1 Product Profile and Outline
25.2
903
NN
ELC-EX
3
L.VL.V
POWERPOWER
X5
X6
X7
EXTENSION
PORT
60
X0
X1
X2
X3
X4
ss
1
3
2
3
568
9
8
7
4
10
903
Y3
Y2
Y1
C2
C3
C1
C0
Y0
X3
3
25.2
POWER
L.V X0
s
s
X2
X1
EXTENSION
PORT
60
ELC-EX NN
9
68
5
1
3
2
3
4
7
8
10
1. Status indicator (Power and low voltage) 6. Mounting hole of the extension unit
2. Model Name 7. Nameplate
3. Extension unit clip 8. Extension unit clip
4. Input/output terminal 9. DIN rail (35mm)
5. DIN rail clip 10. Extension port
1.2 Model Numbers
Input Unit Output Unit
Model Point Type Point Type Dimensions
(mm) Mass(g)
ELC-EX08NNDR 4 4 141
ELC-EX16NNDR 8 8
Relay 162
ELC-EX08NNDT 4 4 136
ELC-EX16NNDT 8
DC T y pe
Sink/Source 8 Transistor 154
ELC-EX08NNAN 8 100~120VAC 0 None 141
ELC-EX08NNDN 8 0 None 162
ELC-EX08NNNR 0
DC T y pe
Sink/Source 8 Relay
25.2 X 90 X 60
136
IL05003004E.pdf
2
Input Unit Output Unit
Model Point Type Point Type Dimensions
(mm) Mass(g)
ELC-EX08NNNT 0 8 Transistor 154
ELC-EX06NNNI 0
6 Relay
200
2 ELECTRICAL SPECIFICATIONS
2.1 Electrical Specifica tion
Model
Item EX08NNDN
EX08NNAN EX08NNNR/T EX08NNDR/T EX16NNDR/T EX06NNNI
Power Supply Voltage 24VDC (-15%~+20%) (the counter-connection protection towards the DC input power
polarity is included)
Motion Specifications Within 5ms of the momentary power loss, the device will keep on operating
Maximum Power Consumption 1W 1.5W 1.5W 2W 1.5W
Insulation Resistance Above 5 MΩ (500VDC between the ground and all the I/O points)
Noise Immunity
ESD(IEC 61131-2, IEC 61000-4-2): 8KV Air Discharge
EFT(IEC 61131-2, IEC 61000-4-4): Power Line: 2KV, Digital I/O: 1KV, Analog &
Communication I/O: 1KV
Damped-Oscillatory Wave: Power Line: 1KV, Digital I/O: 1KV
RS(IEC 61131-2, IEC 61000-4-3): 26MHz~1GHz, 10V/m
Grounding The diameter of the groundin g wire cannot be smaller than that of terminals L and N (if
numerous ELCs are used at the same time, make sure that each ELC is grounded
respectively to the ground poles)
Vibration/Shock Immunity International Standard Regulations: IEC1131-2, IEC 68-2-6 (T EST Fc)/ IEC1131-2 &
IEC 68-2-27 (TEST Ea)
Operation/Storage Environment Operation: 0~55(temperature), 50~95% (humidity), pollution degree: 2; Storage:
-40~70(temperature), 5~95% (humidity)
2.2 Input/Output Specification
Electrical Specification DC Input Point
Input type
Item DC T y pe AC T y pe
Input Type DC (SINK or SOURCE) -
Input impedance - 21Kohm/50Hz 18Kohm/60Hz
Input Voltage/Current 24VDC 5mA 85~132VAC 50~60Hz
6.2mA 110VAC/60Hz
OffOn, above 16VDC above 80VAC
Motion Level OnOff, below 14.4VDC below 30VACbelo w
Response Time Default 10ms (Adjustable range of
0~15ms could be selected through D1020 25ms
Circuit isolation/Operation
indication Photocoupler/LED On
Electrical Specification of Output Point
Output T y pe
Item Relay-R Relay-R (*1) Transistor-T
Current Spec. 1.5A/1 point (5A/COM) 6A/1 point 55 0.1A/1 point, 50 0.15A/1 point
45 0.2A/1 point, 40 0.3A/1 point
Voltage Spec. 250VAC, below 30VDC 250VAC, below 30VDC 30VDC
75VA (Inductive) 240VA (Inductive)
Max. Loading 90 W (Resistive) 150 W (Resistive) 9W
Response Time About 10 ms About 10 ms OffOn 15us OnOff 25us
*1: Only for model ELC-EX06NNNI
IL05003004E.pdf
3
3 INSTALLATION & WIRING
3.1 Terminal Layout
ELC-EX08NNDN ELC-EX08NNAN ELC-EX08NNNR
ELC-EX08NNNT ELC-EX08NNDR
ELC-EX08NNDT ELC-EX16NNDR
ELC-EX16NNDT ELC-EX06NNNI
S/S
X0
X2
X5
X6
X7
X3
X1
X4
COM
X0
X2
X5
X6
X7
X3
X1
X4
C0
Y0
Y2
Y5
Y6
Y7
Y3
Y1
Y4
S/S
X0
X2
X3
X1
C0
Y0
Y1
C2
C1
Y2
C3
C3
S/S
X0
X2
X3
X1
C0
Y0
Y2
Y3
Y1
Y4
Y5
Y6
X4
X6
X7
X5
Y7
C0
Y0
C1
C2
Y2
Y1
C3
Y3
C4
C5
Y5
Y4
3.2 System Assembly
Procedure:
1. Open the extension cover on the side of the unit with a screw driver
so that the external connector is exposed.
2. Raise the extension hooks on the top and bottom sides of the unit
with a screwdriver.
3. Align the pins and holes in the four corners of the control unit and
extension unit, and insert the pins into the holes so that there is no
gap between the units.
IL05003004E.pdf
4
4. Press down the expansion hooks raised in step 2 to secure the unit.
3.3 Installation of the DIN rail
The ELC can be secured to a cabinet by using the DIN rail that is 35mm high with a depth of 7.5mm. When mounting the
ELC on the DIN rail, be sure to use the end bracket to stop any side-to-side motion of the ELC, thus to reduce the chance of
the wires being pulled loose. At the bottom of the ELC is a small retaining clip.
To remove it, pull down the retaining clip and gentl y pull th e ELC
away from the DIN rail. As shown on the right:
When installing the ELC, make sure that it is installed in an
enclosure with sufficient space (as shown on the right) to its
surroundings so as to allow heat dissipation.
D
D
DD
E
L
C
D>50mm
3.4 Input/Output points numbering order
No matter how many points of MPU, the input of the first I/O extension unit will start from X20, output will start from Y20.
ELC Models Input
Points Output
Points Input
Numbering Output
Numbering
MPU PA/PB/PC 8 4/6 X0~X7 Y0~Y5
EXT1 EX16NNDT 8 8 X20~X27 Y20~Y27
EXT2 EX08NNDN 8 0 X30~X37 -
EXT3 EX06NNNI 0 6 - Y30~Y35
System combined Example:
MPU EXT1 EXT2 EXT3 EXT4 EXT4 EX08NNDR 4 4 X40~X43 Y40~Y43
Extension unit 3 ELC-EX06NNNI will be used as 8 outputs, the higher 2 numbers of output points have no corresponding
output points.
Extension unit 4 ELC-EX08NNDR will be used as 8 input points/8 output points, the higher part numbers of inputs points and
output points have no corresponding input/output poi nts. It is recommended to place them at the end of serial wiring, so
that I/O points numbering will be continuous.
3.5 Wiring
22-16AWG
<1.5mm
Notes:
1. Please use 22-16AWG (1.5mm) wiring (either single or multiple core) for I/O wiring
terminals. The specification for the terminals is as shown on the left. ELC terminal
screws should be tightened to 1.95 kg-cm (1.7 in-lbs). Use Copper Conductor Only,
60/75 °C.
2. I/O signal wires or power supply should not run through the same multi-wire cable or
conduit.
3.6 Input Point Wiring
There are two types of DC type wiring: SINK and SOURCE, defined as follows:
IL05003004E.pdf
5
SINK Mode SOURCE Mode
+24V 0V
DC Power Supply
S/S X0 X1 X2
Sink mode
+24V 0V
DC Power Supply
S/S X0 X1 X2
Source mode
3.7 AC Type Wiring
Input Circuit Connection 110V AC Input Specifications
Input voltage 85~132VAC 50~60Hz
Input impedance 21Kohm/50Hz 18Kohm/60Hz
Input current 6.2mA 110VAC/60Hz
OFFON/ONOFF 80V 3.8mA/30V 1.7mA
Response time 25ms
COM X0 X1 X2
ELC-12PCNNAR
85~132VAC
50/60Hz
Circuit isolation/Operation indication Photocoupler/LED On
3.8 Output Point Wiring
The Relay Output Circuit Wiring
1 Do not use this terminal
2 Fuse
3 Reverse-current protection diode, *1
4 External Mechanic al Interlock*2
5 Emergency stop
6 Surge absorber(0.1uf capacitor+100~120ohm
resistor, *3:
7 Inductive load
8 Incandescent lamp
9 DC power Supply
MC2MC1
9
10
C0 C1Y0 Y4
C2 Y2 Y3 Y5
Y1
5 2
3 7
8
1
6
7
2
5 4
MC2 MC1
10 AC power Supply
*1: This ELC does not have any internal protection circuitry on the relay outputs. For switching direct current on inductive loads,
a reverse-current protection diode should be installed in parallel with the load. The relay contact life decreases significantly
if this is not done.
The reverse-current protection diode needs to satisfy the following specifications.
- The diode is rated for maximum reverse voltage of 5~10+ times the load voltage.
- The forward current is more that the load current
*2: Ensure all loads are applied to the same side of each ELC output, see above figure. Loads which should NEVER
simultaneously operate(e.g. direction control of a motor), because of a critical safety situation, should not rely on the ELC’s
sequencing alone. Mechanical interlocks MUST be fitted to all critical safety circuits.
*3: This ELC does not have any internal protection circuitry on the relay output. For switching AC on inductive loads, a surge
absorber (0.1uF + “100ohm to 120ohm”) should be installed in parallel with the load. The relay contat life decreases
significantly if this is not done. Besides protecting the internal circuity of the ELC, a surge absorber decreases the noise
emissions to the load.
IL05003004E.pdf
6
The Transistor Output Circuit Wiring
1 Do not use this terminal
2 Emergency Stop
3 Fuse
4 External Mechanical Interlock
5 DC Power Supply
6 Incandescent Lamp
7 Reverse-current protection diode, *1
8 Inductive load
MC2MC1
C0 C1Y0 Y4
C2 Y2 Y3 Y5
Y1
5 7 8
1
6
6
4
MC2 MC1
2
3
3
9
9 Resistive load
*1: Ensure all loads are applied to the same side of each ELC output, see above figure. Loads which should NEVER
simutaneously operate (e.g. direction control of a motor), because of a critical safety situation, should not rely on the ELC’s
sequencing alone. Mechanical interlocks MUST be fitted to all critical safety circuits.
*2: Transistor outputs use internal zener diode(39V) as protection circuitry. When driving the in ductive load with transistor
output, a reverse-current protection diode ca n be installed in parallel with the load if necessary.
The reverse-current protection diode needs to satisfy the following specifications.
- The diode is rated for maximum reverse voltage of 5 to 10+ times the load voltage.
- The forward current is more than the load current.
4 TRIAL RUN
4.1. Before Turning ON the Power
After wiring, be sure to check the items below before turning ON the power supply to the ELC.
Item Description
Unit mounting status - Does the unit type match the device list during the d esign stage?
- Are all of the units firmly attached?
Power supply - Is operating voltage supplied correctly?
- Is the power supply cable properly connected?
- Are both voltage and polarity connected correctly for each connection
- Protection against excess current: when overloaded, output voltage lowers.
Although the output voltage will return to normal when the load returns to normal, be
careful as long overloads or short-circuits will cause deterioration or destruction of
internal elements.
- Attaching additional power supply units in parallel is not allowed! It may destroy
internal elements and the load of the power supply.
Check input/Output terminals - Does the wiring of connector and terminal match?
- Is the operating voltage of I/O correct?
- Are the connectors of I/O properly connected?
- Is the wire size correct?
Note: These precautions concern the ELC-PS01/PS02 po wer supply unit specifically.
4.2. Turning the Po wer ON
After checking the items given on the section 7.1, perform the trial operation by adhering to the following procedure.
- Check “POWER” LED at the front of the ELC extension unit.
- Check “LV” LED at the front of the ELC extension unit.
4.3. Check Communication with ELC control unit
After Power on and ELC is completing initial setup. The total number of extensive input/output points will be stored in special
data registers of D1142 and D1143.
Please check D1142 and D1143 to confirm the adding extension unit is connecting with control unit normally.
IL05003004E.pdf
7
5 TROUBLESHOOTING
5.1. All LEDs are OFF
- Check the power supply wiring.
- Check if the power supplied to the ELC contr ol un its is in the range of the rating.
Be sure to check the fluctuation in the po wer supply.
- Disconnect the power supply wiring to the other devices if the power supplied to the ELC control unit is shared with them.
If the LEDs on the ELC control unit turn ON at this moment, the capacity of the power supply is not enough to control other
devices as well. Prepare another power supply for other devices or incr ease the capacity of the power supply.
5.2. Diagnosing Input Malfunction
- Check the wiring of the input devices(input indicator LEDs are OFF)
- Check that the power is properly supplied to the input terminals.
If the power is properly supplied to the input terminal, there is probabl y an abnormality in the ELC’s input circuit. Please
contact your dealer.
If the power is not properly supplied to the input terminal, there is probably an abnormality in the input device or input
power supply. Check the input device and input power supply.
- Check the input condition (inp ut indicator LEDs are ON)
- Monitor the input condition using a programming tool.
If the input monitored is OFF, there is probably an abnormality in the ELC’s input circuit. Please contact your dealer.
If the input monitored is ON, check the program again. Also, check the leakage current at the input devices (e.g.,
two-wire sensor) and check for the duplicated use of output or the program flow when a control instruction such as MC
or CJ is used.
Check the settings of the I/O allocation.
5.3. Diagnosing Output Malfunction
- Check the wiring of the loads. (output indicator LEDs are ON)
- Check if the power is properly supplied to the loads.
If the power is properly supplied to the load, there is probably an abnormality in the load. Check the load agai n. If the
power is not supplied to the load, there is probably an abnormality in the ELC’s output circuit. Pleas contact your dealer.
- Check of output condition (out put indicator LEDs are OFF)
- Monitor the output condition u s ing a programming tool.
If the output monitored is turned ON, there is probably a duplicated output error.
- Forcing ON the output using a programming tool.
If the output indicator LED is turned ON, go to input conditio n check.
If the output LED remains OFF, there is probably an abnormality in the ELC ’s output circuit. Please contact your dealer.