To remove it, pull down the retaining clip and gently pull the
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
D
D
E
L
C
D>50mm
3.3. 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 points. It is
recommended to place them at the end of serial wiring, so that I/O points numbering will be
continuous.
3.4. 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 lb-n). 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.
3.5. Input Point Wiring
There are two types of DC type wiring: SINK and SOURCE, defined as follows:
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
3.6. AC Type Wiring
Input Circuit Connection
110V AC Input Specifications
Input voltage
85~132VAC 50~60Hz
Input impedance
14.5Kohm/50Hz 12Kohm/60Hz
Input current
9.2mA 110VAC/60Hz
above 80VAC
On/Off Voltage Level
below 30VAC
Off
ĺ
On
І
15 ms
Response time
On
ĺ
Off
І
20 ms
COM
X0
X1
X2
ELC-EX08NNAN
85~132VAC
50/60Hz
Prox.
Sensor
Circuit isolation/Operation indication
Photocoupler/LED On
3.7. Output Point Wiring
The Relay Output Circuit Wiring
1 Do not use this terminal
2 Fuse
3 Reverse-current protection diode, *1
4 External Mechanical Interlock*2
5 Emergency stop
6 Surge absorber(0.1uf ca100~120ohm resistor, *3:
7 Inductive load
8 Incandescent lamp
0&
0&
9
10
&
&
<
<
&
<
<
<
<
5
2
3
7
8
1
6
7
2
5
4
0&
0&
9 DC power Supply
10 AC power Supply
