MAWA-050A
2. Installation and Connections
2-3
(2) Connections
(2) -1. Preparation for connections
The standard connection status is as shown in the following figure.
The input cable, grounding cable, torch and torch cable are options.
(Refer to “1. (6) Accessories” and “1. (7) Options.”)
For the information on options, make contact with us.
The argon gas, reducing valve, flow meter, tube, torch fixing base and insulating material except
accessories and options should be prepared by the user.
: Accessory : Option
IMPORTANT
PE (Protective Earth) must be grounded.
PE must be independently grounded. When PE of separate instrument is connected to this
terminal, such an instrument may erroneously function by interference. Refer to “2. (2)-2.
Connecting the power supply.”
To avoid a malfunction caused by noise, do not bundle the external I/O cable, the power cable,
and the TORCH/EARTH cable. Also, keep them more than 100 mm apart from each other.
Do not use any gas other than argon gas to avoid a misfire.
There is a solenoid valve inside of
MAWA-050A
to turn on/off the argon gas. At least 0.1
MPa of pressure is required. However, the maximum allowable pressure is 0.6 MPa. Set
the flow rate to 0.5 liters/min or more according to the condition to use. (Use dry gas and
connect the tube to prevent foreign matter, water and oil from flowing into piping.)
Be sure to insulate the torch and torch fixing base by Bakelite, etc. The distance of the torch
and torch fixing base from the insulating material should be 40 mm or more.
When the customer prepares the input cable, use a cable with a power line with a size of 1.25
~ 2 mm
2
.
* The clamp range of the cable gland of the terminal cover is a cable diameter of 9 ~ 17 mm.
Use a breaker with a capacity of 10 A or more.
MAWA-050A
Argon gas
cylinder
Pressure
reducing
valve
Gas
flowmeter
Single
phase
D-Sub connector
GAS IN
AC INPUT
TORCH
EARTH
TORCH cable
EARTH cable
Torch mount
Insulating material
(Bakelite, etc.)
Torch
PE
40 mm or
greater
40 mm or
greater
START SW
Input cable
Tube
To be provided by user
To be provided by
user
φ
6
Terminal M5
Insulating material
(Bakelite, etc.)
EM1
EM2
EM2_COM
EM1_COM
START
COM
Touch start head
