11
73ET/74ET/75ET USERS MANUAL EM-7353-0003B Rev.5
1.4.3
INSTALLATION PROCEDURE
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INSTALLATION GASKET
The 7xET unit should always be installed using the pre-fitted installation gasket, even at locations where water
resistance is not required.
The installation gasket must be installed properly to ensure a sufficient water-resistance level.
When properly installed, the gasket uniformly extends approximately 2 mm out of the groove.
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INSTALLING THE 7xET ONTO THE PANEL
1. Insert the 7xET unit into the cutout section of the panel with the touch screen facing outward.
2. Insert the installation fastener hooks into the four (4) insertion slots, two (2) on the top and two (2) on the bottom.
3. Slide the fastener toward the rear of the 7xET.
4. Slowly tighten each fastener attachment screw in sequence until all fasteners are evenly and securely tightened.
The appropriate torque for tightening an attachment screw is 0.5 N·m.
For use with Panel Mount Adaptors (models: A-73, A-74, A-75), refer to the respective instructions.
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CONNECTING TO THE POWER SOURCE
WARNING !
Turn the main power supply off prior to connecting the 7xET power terminals. Failure to do so may result in an
electrical shock.
CAUTION !
Observe the operational voltage range as indicated below. Supplying any other level of power can damage the 7xET
unit or the power source.
73ET 100 – 240V AC rating: Operational voltage range 85 – 264V AC
24V DC rating: 24V DC
±
10%
74ET 24V DC rating: 24V DC
±
20%
75ET 24V DC rating: 24V DC
±
20%
• Power Supply Cable
To reduce line-to-line and line-to-ground noise as much as possible, use a low-noise power supply.
The wires for the 7xET’s power supply, I/O devices, and any motor-driven equipment must be installed separately.
To increase the noise resistance, use a twisted-pair cable for power supply.
Do not bind together or place near each other the main circuit cables (high voltage and high current), I/O signal
cables, and power supply cables.
To reduce noise, keep the power supply cables as short as possible.
• Grounding
Use a grounding resistance of less than 100
Ω
.
The grounding for the 7xET unit should be independent of other devices. Use exclusive grounding or a common
grounding point.
Insertion slots
Top view: Two more insertion slots at the bottom.
Installation panel
Hook