a This Instruction Sheet only provides descriptions for electrical specifications, general
specifications, installation & wiring. Other detail infromation about programming and
intructions, please see “DVP-PLC Application Manual: Programming”. For more
information about the optional peripherals, please see individual product instuction
sheet or “DVP-PLC Application Manual: Special I/O Modules”. The DVP-EH series
main processing units offer 8 ~ 48 points and the maximum input/output can be
extended up to 256 points.
a DVP-EH DIDO is an OPEN TYPE device and therefore should be installed in an
enclosure free of airborne dust, humidity, electric shock and vibration. The enclosure
should prevent non-maintenance staff from operating the device (e.g. key or specific
tools are required for operating the enclosure) in case danger and damage on the
device may occur.
a Do NOT connect the AC main circuit power supply to any of the input/output terminals,
or it may damage the PLC. Check all the wiring prior to power up. To prevent any
electromagnetic noise, make sure the PLC is properly grounded . Do NOT touch
terminals when power on.
> 5MΩ at 500VDC (between all I/O points and ground)
ESD: 8KV Air Discharge
EFT: Power Line: 2KV, Digital I/O: 1KV, Analog & Communication I/O: 250V
Digital I/O: 1KV, RS: 26MHz ~ 1GHz, 10V/m
The diameter of grounding wire shall not be less than that of L, N terminal of
the power supply. (When many PLCs are in use at the same time, please
make sure every PLC is properly grounded.)
Please install the PLC in an enclosure with sufficient space
around it to allow heat dissipation, as shown in the figure.
yDirect Mounting: Please use M4 screw according to the
dimension of the product.
yDIN Rail Mounting: When mounting the PLC to 35mm DIN
rail, be sure to use the retaining clip to stop any side-to-side movement
of the PLC and reduce the chance of wires being loose. The retaining
clip is at the bottom of the PLC. To secure the PLC to DIN rail, pull
down the clip, place it onto the rail and gently push it up. To remove the
PLC, pull the retaining clip down with a flat screwdriver and gently
remove the PLC from DIN rail, as shown in the figure.
Wiring
1. Use O-type or Y-type terminal. See the figure in the
right hand side for its specification. PLC terminal
screws should be tightened to 9.50 kg-cm (8.25 in-Ibs)
and please use only 60/75ºC copper conductor.
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Below
6.2 m m
Below
6.2 m m
To s ui t M 3. 5
screw terminals
2. DO NOT wire empty terminal. DO NOT place the input signal cable and output
power cable in the same wiring circuit.
3. DO NOT drop tiny metallic conductor into the PLC while screwing and wiring. Tear
off the sticker on the heat dissipation hole for preventing alien substances from
dropping in, to ensure normal heat dissipation of the PLC.
I/O Point Serial Sequence
When connecting MPU with less than 32 points to extension unit,
the input number of 1st extension unit is started from X20 in
sequence and the output number is started from Y20 in sequence.
If connecting MPU with more than 32 points to extension unit, the
input number of the 1st extension unit is started from the last input
number of the MPU in sequence and the output number is started
form the last output number of the MPU in sequence. System
application example 1:
PLC Model
16EH/32EH/
MPU
64EH
EXT1 32HP 16 16
EXT2 48HP 24 24
EXT3 08HP 4 4
EXT4 08HN 0 8 -
In system application example, if the input/output of the 1st MPU are less than 16, its
input/output will be defined as 16 and thus there are no corresponding input/output for
higher numbers. The input/output number of extension number is the sequential number
Input
Output
points
points
8/16/32 8/16/32
Input number Output number
X0~X7, X0~X17,
X0~X37
X20~X37, X20~X37,
X40~X57
X40~X67, X40~X67,
X60~X107
X70~X73, X70~X73,
X110~X113
MPU EXT1 EXT2 EXT3
Y0~Y7, Y0~Y17,
Y0~Y37
Y20~Y37, Y20~Y37,
Y40~Y57
Y40~Y67, Y40~Y67,
Y60~Y107
Y70~Y73, Y70~Y73,
Y110~Y113
Y74~Y103, Y74~Y103,
Y114~Y123
from the last number of the MPU.
Power Supply
The power input type for DVP-EH2 series is AC input. When operating the PLC, please
note the following points:
1. The input voltage should be current and its range should be 100 ~ 240VAC. The
power should be connected to L and N terminals. Wiring AC110V or AC220V to +24V
terminal or input terminal will result in serious damage on the PLC.
2. The AC power input for PLC MPU and I/O modules should be ON or OFF at the
same time.
3. Use wires of 1.6mm (or longer) for the grounding of PLC MPU. The power shutdown
of less than 10 ms will not affect the operation of the PLC. However, power shutdown
time that is too long or the drop of power voltage will stop the operation of the PLC
and all outputs will go OFF. When the power returns to normal status, the PLC will
automatically resume operation. (Care should be taken on the latched auxiliary
relays and registers inside the PLC when programming).
4. The +24V output is rated at 0.5A from MPU. DO NOT connect other external power
supplies to this terminal. Every input terminal requires 6 ~ 7mA to be driven; e.g. the
16-point input will require approximately 100mA. Therefore, +24V terminal cannot
give output to the external load that is more than 400mA.
Safety Wiring
In PLC control system, many devices are controlled at the same time and actions of any
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