- 5 -
example below.
1. When using controllers with fewer than 32 points, the first expansion
input address will start at X20. The first expansion output address will
start at Y20. Please refer to the following example for more details:
System
application
example 1:
MPU
EXT1 EXT2 EXT3
System
Configuration
ELCM
Input
points
Output
points
Input
number
Output
number
Power
consumption
Controller
PH32NNDR
16
16
X0~X17
Y0~Y17
30VA
1
st
exp. module EX08NNDR
4
4
X20~X23 Y20~Y23
1.2W
2
nd
exp. module EX16NNDR
8
8
X30~X37 Y30~Y37
2.4W
3
rd
exp. module EX16NNNR
0
16
-
Y40~Y57
2.4W
X24 to X27 are not used in ELCM-EX08NNDR.
The 1
st
digital I/O module ELCM-EX08NNDR only has 4 inputs and 4
outputs but is addressed as an 8 input / 8 output module. The highest
4 input addresses and highest 4 output addresses have no physical
I/O points associated with them. For the 2
nd
digital I/O module
ELCM-EX16NNDR, the input points start from X30, and output points
start from Y30.
Output current supplied from 24VDC on the controller is 500mA(12W).
Remaining applicable power: 12 - (1.2 + 2.4 + 2.4) = 6W
Power Supply
Please note the following when using ELCM-EX Digital Input and Digital
Output (DIDO) with the ELCM-PH/PA series controllers:
1. The AC power supply voltage range for ELCM-PH/PA series controllers
is 100 ~ 240VAC. Please connect the AC power supply to L and N
terminals and note that connecting 110VAC or 220VAC to +24V output
terminals or digital input terminals will damage the ELCM or its
expansion I/O.
2. The power supply for digital I/O points is 24VDC. Please make sure the
power supply polarity is correctly connected.
3. It is highly suggested that the DC power supplies for the controllers and
ELCM-EX DIDO switch ON and OFF at the same time.
4. Use 1.6mm wire (or larger) for grounding.
5. A power loss of less than 10ms will not affect the operation of the ELCM.
However, a power loss that is too long, or a sustained drop of power
supply voltage will stop the running of the ELCM. All outputs will turn
“OFF”. When proper power is restored, the ELCM will resume normal
operation. (Please keep this in mind when you use latched auxiliary
relays and registers in your ELCM program.)
Safety Wiring
In ELCM control systems, many devices are controlled at the same time
