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Contactor 9A and M-Duino Industrial Arduino PLC

Example of use and application on how to control and industrial motor
April 3, 2019 by
Contactor 9A and M-Duino Industrial Arduino PLC
Serzh Ohanyan

Introduction

In this post, we will show you an example of how to control a Motor with the Contactor 9A and one of our industrial Arduino controllers. You need to use a PLC with a relay output, so it's necessary to use our PLC Arduino Ardbox 20 I/Os RELAY HF or any of our M-Duino boards with a RELAY output.

Considering that we need to process a huge amount of data we will use an M-Duino controller since it has a faster processor than Ardbox (M-Duino are implemented with Mega, Ardbox with Leonardo) and an SD card to store data. 

Requirements

M-Duino Family >>>

Ardbox Family >>>

Contactor 9A >>>


Contactor 9A

Specifications:

(Ue) Rated Operating Voltage

<= 300 V CC
<= 690 V AC 25...400 Hz



(Ie) Rated Operating Current 

25 A (<= 60 °C) at Ue <= 440 V CA AC-1
9 A (<= 60 °C) at Ue <= 440 V CA AC-3



[Ith] conventional free air thermal current


25 A at <= 60 °C for power circuit 
10 A at <= 60 °C for signalling circuit
 


(Ui) Rated Insulation Voltage

600 V


Electrical Durability


0.6 Mcycles 25 A AC-1 at Ue <= 440 V
2 Mcycles 9 A AC-3 at Ue <= 440 V




(Uc) Control Circuit Voltage

24 V DC


Mechanical Durability

30 Mcycles


[Uimp] rated impulse withstand voltage

6 kV conforming to IEC 60947


Overvoltage category

III


[Icw] rated short-time withstand current


105 A <= 40 °C 10 s power circuit
210 A <= 40 °C 1 s power circuit
30 A <= 40 °C 10 min power circuit
61 A <= 40 °C 1 min power circuit
100 A 1 s signalling circuit
120 A 500 ms signalling circuit
140 A 100 ms signalling circuit



Average impedance

2.5 mOhm at 50 Hz - Ith 25 A for power circuit


Power dissipation per pole

0.2 W AC-3
1.56 W AC-1


Control circuit voltage limits

0.1...0.3 Uc drop-out at 60 °C, DC
0.8...1.25 Uc operational at 60 °C, DC


Time constant

40 ms


Signalling circuit frequency

25...400 Hz


Minimum switching voltage/current


17 V / 5 mA for signalling circuit



Height

77 mm


Depth

95 mm


Width

45 mm


Weight

0,48 kg





Example
As you can see in the image below, we connect the M-Duino controller to Vds at 24 V. Connect L1, L2 and L3 to the Three-phase Electrical Supply. Connect T1, T2, T3 to the Three-phase Motor. Finally, connecting a RELAY R.X (X = 1..8) output from the Arduino PLC to the Contactor 9A input +A1 and -A2 to the ground, we are able to enable and disable the three-phase Motor by a 24 V signal.


 


10IOS Arduino PLC or ESP32 PLC

10 IOS PLC Arduino or ESP32 

20 IOS PLC Based on Arduino

20 IOS PLC Based on Arduino 

Ethernet
Arduino PLC

Ethernet Arduino PLC 

Raspberry Pi
Industrial PLC


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Contactor 9A and M-Duino Industrial Arduino PLC
Serzh Ohanyan April 3, 2019
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