Coolmay MX3G Programmable Logic Controller User Manual

June 3, 2024
Coolmay

Cool may MX3G Programmable Logic Controller

MX3G Programmable Logic Controller (PLC)

Thank you for purchasing Coolmay MX3G series PLC. This manual mainly explains the product features, specifications and wiring methods. For detailed programming, please refer to “Coolmay MX3G PLC Programming Manual”. More specifications can be customized in batches.

The MX3G PLC has the following features:

  1. Highly integrated. Digital quantity is 16Dll6DO at most, digital output can choose transistor output or mixed output; MX3G-32M analog is fixed to 2 channels 0-l0V voltage input.

  2. Comes with two PLC programming ports: Mini B USB port (faster download and reading speed) and RS232 (8-hole mouse head female seat);
    Generally 2 RS485, or mass-customize them as l RS232+1 RS485 communication port.

  3. Support several high-speed counting and high-speed pulse. High-speed counting is generally2 channels single phase 60KHz+4 channels l0KHz or l channel AB(Z) phase 30KHz+l channel AB(Z) phase SKHz; High-speed pulses are generally l00KHz for Y0~Yl and S0KHz for Y2~Y3, with independent acceleration and deceleration.
    The total of high-speed counting+ high-speed pulse cannot exceed 300KHz.

  4. Special encryption, setting the password to 12345678 can completely prevent reading the program. [Note: Only 8-bit password encryption is supported]

  5. Use 5.0mm pitch pluggable terminals for easy wiring; DIN rail (35mm wide) and fixed holes can be used for installation.

  6. Superfunction. Compatible with FX3S PLC, fast running speed.

Product Details

  1. Series MX3G: MX3G PLC

  2. Digital input and output (DI/DO) 16: (8Dl/8DO) 32: (16Dl/16DO)

  3. Module type   M: Main module of universal controller

  4. Digital output (DO) type R: Relay; T: Transistor; RT: Transistor and relay mixed output

  5. Analog input (AD) MX3G-32M: 2AD; MX3G-16M has no analog

  6. Analog output (DA) MX3G-32M: 0-lOV input for 2AD

  7. Cl: Single-phase high-speed counting, C2: AB-phase counting, C3: ABZ phase counting. Generally, 2 single-phase 60KHz + 4 l0 KHz or 1 AB (Z) phase 30KHz + 1 AB (Z) phase 5KHz.

  8. PO: high-speed pulse lOKHz; Pl: high-speed pulse l00 KHz. Generally, YO-Yl is l00 KHz for each channel, and Y2- Y3 is SOKHz for each channel.
    The total of high-speed counting+ high-speed pulse cannot exceed 300KHz.

  9. Optional COM port    Refer to [Chart 1: basic parameter]

Basic Parameter

MX3G PLC| Digital points| Analog points (optional)| COM port| High -speed counting| High
speed
pulse| Size
---|---|---|---|---|---|---
DI| DO| AD| DA| 485/232| Single- phase| AB phase| ABZ phase| Output| Dimensions (mm)| Cutout size (mm)
M X3G-16M|

8

|

8

|

0

|

0

| Default 2RS48S;
Or can be customized

l RS485, 1 RS232

| Ge11€rally single- phase 260KHz+4 channels l0KHz;| Generally AB phasel channel 30KH>+l channel SKHz;| Generally ABZ phase 1 channet 30KHz•1 channel SKHz;| Generally4 channels; YO-Ylis I OOKH>, Y2-Y3 is SOKHz; High- speed counting+ high-speed pulse cannot exceed 300KHz| 65″90’66| 57″99
MX3G-32M| 16| 16| 2| 0| 130•90•66| 122’99
MT are transistor output:Y0-Y3 are fixed as transistors; MR are relay output; MRT are mixed out put, optional according to customer requirements.

Chart 1: Electrical parameter

Electrical parameter

Input voltage|  | AC 220V
Digital input indexes
Isolation mode|  | Photo coupling
Input impedance|  | High-speed input 3.4KO I| Common input| 4.3KO
Input ON| High-speed input: current>5.8mA/ 24V I Common input: current

9.9mA/24V
Input OFF| High-speed input: current<4.Sm/A19V   I   Common input: current>4mA/17V
Filter function| With filter function, the filter time can beset among0-60ms,defaulted as l0ms
High-speed counting| Generally 2 single-phase60KHz + 4l0KHz or1 AB (Z) phase 30KHz+ l  AB (Z) phase SKHz
Input level| Passive NPN, common terminal isolation, S/S connected to 24V+
Digital relay output index
Max current| 2A/ point, 4A/4point COM, 5A/8point COM, 5A/12point COM
Circuit power voltage| DC/AC24V~220V
Circuit insulation| Relay mechanic Cal insulation
On response time| Approx. l0ms
Mechanical life (without load)| 10million times
Electrical life (rated load)| 300,000 times
Output level| Normally open dry contact output, COM can be connected to positive or negative
Digital transistor output index
Max current| Y0-Y3 is fixedas MT, 0.l A/ point;  MT: 0.SA/ p oint,0.SA/4points COM, l. 6A/8 points COM;
Circuit power voltage| DC24V
Circuit insulation| Optocoupler insulation
Isolated voltage(power treminal)| l S00VAC
On response time| High-speed output: l0µs;other 0.Sms
High -speed output frequency| Generally 4 channels, Y0-Yl is lO0KHz, Y2-Y3 isS0KHz

High- speed counting+ high-speed pulse cannot exceed 300KHz

Output level| Y0-Y3isDC24Vactive NPN output, others are generally low-level l PN, COM is negative
Analog input index
Input signal| 0-l0V
Response time| 1 scan cycle
Analog output indexes| 2 channels
Precision| 12 bits
External port
Programming port| Mini B USB port(faster download speed)andRS232 (8-hole mouse head femael socket)
COM port| Refer to “Chart 1: basic parameter”
 | Environment
Operating temperature| 0º C∼50ºC
Relative humidity| 5% ∼ 950‰RH
Storage temperature| -20º c-70°c
Vibration frequency| 10-57Hz, amplitude 0.035mm;57Hz-150Hz,acceleration 4.9m/ s2 (X, Y, and Z direct ions each10 times, a total of 80 minutes each)

Mechanical Design


Electrical Design

  1. Mounting holes
  2. Terminal block of power supply
  3. Terminal block of digital output
  4. Digital input display LED
  5. Digital output display LED
  6. PWR: power indicator RUN: PLC operating indicator ERR: light on when the program error occurs
  7. RS485/RS232/CAN
  8. RS485
  9. PLC operation switch RUN/STOP
  10. Analog input
  11. Analog output
  12. RS232
  13. DIN rail (35mm wide) installation slot
  14. Terminal block of digital input
  15. PLC USB programming port

Hardware interface

OV 24V S/S XOO- X07
Y24V YOO~Y03 COMO Y04~Y07
MX3G-16MT/MRT
OV 24V S/S XOO~X17 GNDl ADO GNDl ADl Y24V YOO~Y03 COMO Y04~Y07 COMl YlO~Yl3 COM2 Yl4 ~Y17 MX3G-32MT/ MRT-2AD

Pin definition of MX3G PLC

Pin No. Signal Description
4 RXD Receive Data
5 TXD Transmit Data
8 GND Ground


Graph 4 PLC programming port
Terminals wiring standard: 22-14AWG wire. This series terminals are all pluggable terminals.

COM interface definition:
Comes with two programming ports: Mini B-type usb port (faster download speed) and RS232 (8-hole mouse head female socket) Default 2 RS485, or can be customized as 1 RS485, 1 RS232.

COM port description:

  • Serial port 1: RS232 (PLC programming port): supports Mitsubishi programming port protocol, which can be used to download PLC programs or communicate with devices that support Mitsubishi programming port protocol
  • Serial port 2: RS485 (AB port)/optional RS232: support Mitsubishi programming port protocol, RS protocol and Modbus RTU/ASCII protocol
  • Support RS, WR3A, RD3A, ADPRW instructions
    • Serial port 3: RS485 (Al, Bl port): support Mitsubishi programming port protocol, RS2 protocol and Mod bus RTU/ASCII protocol ,c Support RS2, WR3A, RD3A, ADPRW instructions
      Note : For detailed settings, please refer to “Coolmay MX3G PLC Programming Manual”

Equivalent Circuit

Digital input wiring

PLC input (X) is external power supply DC24V sink type (passive NPN), and the input signal is isolated from the power supply. When using, you need to connect 5/5 to the 24V positive of the power supply.

PLC digital input wiring:
Port short connection: The S/S of the PLC input terminal is connected to 24V, and the X terminal is connected to the power supplyOV, that is, the input has a signal;
Two-wire system (magnetic control switch): PLC digital input is connected to a two-wire magnetic control switch, the positive pole of the magnetic control switch is connected to the X terminal, and the negative pole is connected to OV; Three-wire system (photoelectric sensor or encoder): PLC switch is connected to a three-wire photoelectric sensor or encoder, the power supply of the sensor or encoder is connected to the positive pole of the power supply, and the signal cable is connected to the Xend. Encoders and photoelectric sensors are required to beof NPN type (PNP needs special customization).

PLC digital output wiring:
Transistor: YO-Y3 are fixed as pulse output ports, the wiring load is only O.lA, and the wiring method is DC24V active NPN output;
Other general output is NPN, COM is connected to the negative pole, and Y is connected to the positive pole of the power supply after the load. Relay: dry contact output, COM can be connected to positive or negative.

Digital output wiring

Figure 7 shows the equivalent circuit diagram of the relay output module. The output terminals are in several groups, each group is electrically isolated, and the output contacts of different groups are connected to different power circuits.

The equivalent circuit of the PLC output part of the transistor output is shown in Figure 8. It can also be seen from the figure that the output terminals are in several groups, and each group is electrically isolated. The output of different groups can be connected to different power circuits; the transistor output can only be used for DC 24V load circuits. The output wiring mode is NPN, COM common cathode.
Among them, YO-Y3 are fixed as pulse output ports, the wiring load is only O. l A, and the wiring method is DC24V active NPN output.

For the inductive load connected to the AC loo p, the external circuit should consider the RC instantaneous voltage absorption circuit; for the load of the DC loop, consider adding a freewheeling diode, as shown in Figure 9.

The wiring of stepping or servo motor is shown in Figure 10. MX3G series PLC defaults YO-Y3 as pulse points, and the direction can be customized. As shown in Figure 10.
Note : 5V drive must connect a 2KO resistor in series with DC24V.

  • Note : All the internal circuits in the diagrams are for reference only
Analog wiring

PLC analog wiring

Two-wire system: the positive pole of the power supply is connected to the positive pole of the transmitter, the negative pole of the transmitter is connected to the AD port, and the negative pole of the power supply is connected to the GND port. Generally, it is the wiring method of 0~20mN4~20mA transmitter; Three-wire system: the positive pole of the power supply is connected to the positive pole of the transmitter, the negative pole of the power supply and the negative pole of the signal output are the same terminal, and the signal output of the transmitter is connected to the AD port; Four- wire system: the positive and negative poles of the power supply are connected to the positive and negative poles of the transmitter respectively, and the positive and negative poles of the transmitter signal output are connected to the AD port and GND respectively.

PLC anti-interference processing

  1. Strong and weak currents should be separated and wired, and not common ground; when there is strong electric interference, magnetic rings should be added on the power supply side; and properly and effectively grounded according to the type of the chassis.
  2. When the analog quantity is disturbed, 104 ceramic capacitors can be added for filtering, and a correct and effective grounding can be performed.
  • Note : For more details, please refer to “PLC Ant i-interference Processing Method” on Coolmay’s official website

Programming Reference

Devices Distribution and Statement of Power-down Save

Max digital points MX3G1-6M MX3G-32M
Digital input X X00 ∼ X078poni t XOO∼  Xl7 16point
Digital output Y Y00 ∼ Y 07 8point Y00 ∼ Yl7 16point
Auxiliary relay M [MO-M383] 384pointGeneraV[M384-M511] 128point

Retentive/ [MS12-Ml535] 6144poni t General
fM8000-M81511 512ooint Snedal
States S| [SO-S9]10pointInitial slate/[SIO-S127]118point Retentive/[S128-525]5128pointGeneral
Timer T| [TO-HI] 32pointl OOmsGenrael / [ [T32-T62] 31point100ms,M802=80N omeslOms
[Tl28-Tl3]14point lamas cecum late detention /[Tl32-Tl37] 6pointl 00 msaccumulaivtereteniotn
Counter C| 16-bit up counter[CO-CIS)16pointGeneral/iC16-0 l ]16point Retentive
32b- it up/down counter(C200-C234]35pointGeneral
High-speed counters[C235-C245Snigle phase silage count] [C246-C250SSSinglephasedoubel count]

{C251-C525 dual phase dual count]

Data registered| [OO-D127] [D256-02999] 2872point General/[ D128·0255] [D1000-D3999]3128ponit Retentive

/[D8000-08511]512point Special

Data register V, Z| [VO-V7] [ ZO-Z7] 16pointIndex
Pointer JUMP, CAI.L branch| [PO-P255] 256point / [PO~ Pl280]1281point (26232version or above)
Nested Pointer| INO-N7]8point Master control
Interruption| [10::JO~ ISOO ] 6point Input interruption/ [160 0 ~ 180 0 ] 3point Timer inter eruption
Constant| K| 16bit-3,2768-32,767| 32bit -2,147,483,648-2,147,48,3647
H| 16bit 0-FFFFH| 32bit 0-FFFFFFFFH

The MX3G PLC’s device power-off maintenance is permanently maintained, t hat is, all the devices in the holding area are not lost after the module is powered off. The real-time clock uses a rechargeable battery to ensure that the clock is the current time. All power-down hold functions must ensure that the voltage of the DC24V power supply is above 23V with load, and the PC power-on time is longer than 2 minutes, otherwise the power-down function will be abnormal.

Programming software compatible with programming software GX Developer8.86Q and GX Works2 For details, please refer to: “Coolmay MX3G PLC Programming Manual” “MX3G Programmable Logic Controller (PLC) User Manual” “Cool may PLC instruction programming manual”

MX3G Programmable Logic Controller (PLC) User Manual
– Before using this product, please read the relevant manual Carefully use the product under the environmental conditions specified in the manual.

  1. Please confirm the power supply voltage range of this product (conventional product power supply AC220V!) and correct wiring before turning on the power to avoid damage.
  2. When installing this product, please be sure to tighten the screws or clamp the guide rails to avoid falling off.
  3. Please do not wire or plug or unplug the cable plug when the power is turned on, otherwise it is easy to cause electric shock or circuit damage. Please turn off the power switch immediately when the product emits a peculiar smell or abnormal sound. Do not drop metal shavings and wire ends into the ventilation holes of the controller during screw hole processing and wiring; otherwise, it may cause product failure and mis operation.
  4. Do not tie the power cord and the communication cable together or put them too close together, should keep them at a distance of more than 10cm; strong and weak currents need to be separated and properly and effect ively grounded. In severe interference situations, shielded cables should be used for communicat ion and high-frequency signal input and output cables to improve anti interference performance. The grounding terminal FG on the machine must be grounded correctly to improve the ant i-interference ability.
  5. The switch input is external power supply DC24V drain type (passive NPN), and the input signal is isolated from the power supply. When in use, the S/S should be connected to the 24V posit ive of the external power supply.
  6. The Y24V of the digital output common terminal is actively output.
  7. Please do not disassemble the product or modify the wiring at will. Otherwise it may cause failure, malfunction, loss, or fire.
  8. Please turn off all power when installing and disassembling the product, otherwise it will cause equipment malfunction and error.

Customer Supports

Shenzhen Coolmay Technology Co., Ltd.
Tel: 0755-86950416
86960332
26051858
26400661
Fax:0755-26400661-808
QQ: 1687435500
Email: m3@coolmay.com
Website: www.coolmayplc.com

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