Megmeet MC100 Series User Manual

MC100-5AM Analog Quantity Input and Output
Module User Manual
Thank you for using MC100 series PLC independently developed and
produced by MEGMEET. Before using the product, please carefully read this
manual so as to better understand it, fully use it, and ensure safety. This quick
start manual is to offer you a quick guide to the design, installation,
connection and maintenance of MC100 for the convenience of users to access
the required information on site, and provide a brief introduction to relevant
accessories, FAQs, etc.
This manual is for the following MC100 series members:
MC100-5AM Analog Quantity Input&Output Module
Version：1.0
Revision Date：2010-3-17
BOM Code：R33010738
For detailed product information, please refer to MC100 Series PLC User
Manual , X-Builder Programming Software User Manual , and MC 100 Series PLC
Programming Reference Manual . For ordering the above user manuals,
contact your Megmeet distributor or sales office.
1. Outline and Part Name
Terminal
Expansion cable
Figure 1-1 MC100-5AM appearance and part
2. Installation Description
DIN rail mounting
Generally, you can mount the PLC onto a 35mm-wide rail (DIN). Open
the DIN snap-fit at the bottom of the module and lock the bottom of the
module onto the DIN rail;
Rotate module close to the DIN guide rail and close the DIN snap-fit with
a double-checking, as the following figure：
Screw fixing
Fixing the PLC with screws can stand greater shock than DIN rail
mounting. M3 screws can be chosen to fix the PLC onto the backboard of the
electric cabinet through the mounting holes on PLC enclosure, as the following
figure.
Power indicator
Expansion cable interface
I/O indicator
Fig.2-2 Screw installation diagram
2.2 Cable connection and specification
Cable specification
It is recommended to use stranded copper cables and prefabricate
insulated ends to ensure connection quality. The following table lists the
sectional areas and models of the recommended cables.
Recommended
Cable
NO.
AC power line
AWG12/AWG18
（L、N）
Ground line AWG12
Input signal (X) AWG18/AWG20
Input signal (Y) AWG18/AWG20
Fix the prepared cable end onto the PLC terminals with screws correctly.
Fastening torque: 0.5~0.8Nm.
The recommended cable preparation method is shown in the following figure.
2.3 Wring requirement
For the safety (to prevent electric shock and fire accidents) and lower
noise, the ground terminal of the controller should be connected in
accordance with the requirements from national electrical regulations, and
the ground resistance should be less than 100Ω. Single point grounding should
be used when wiring multiple controllers, and the ground wire cannot form a
loop. As shown in the diagram below:
×
Fig. 2-4 PLC grounding diagram
Figure 2-5 shows the wiring requirement for user terminal.
Note for wiring:
1. It is recommended to use a shielded twisted-pair cable for analog input. The
cable should be far away from power cable or other cables that may generate
electrical power interference.
2. If there is interference in the external electrical wiring and the input signal
fluctuates, you can connect a smoothing capacitor (0.1μF ~ 0.47 μF /25V).
Terminal and heat shrink
Cross-Section
tubing
H1.5/14 prefabricate
1.0—2.0mm 2 insulated tubing terminal, or
Wire end tinning treatment
H2.0/14 prefabricate
2.0mm 2 insulated tubing terminal, or
Wire end tinning treatment
0.8—1.0mm 2 UT1-3 or OT1-3 cold-pressed
terminal, Φ3 or Φ4 heat
0.8—1.0mm 2
shrink tubing
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