User`s manual

2-1
Chapter 2: Precautions for use
(1) Installation location and environment
Do not install the LCD control terminal in any of the following locations.
- Where flammable gas, solvents, or coolant liquid are present.
- In locations with salt or metal dust in the air.
- In locations exposed to direct sunlight.
(2) Installation precautions
Carefully consider operability, maintenance requirements, and environmental hazards when installing
an LCD control terminal.
In order to use the terminal within the specified temperature range, do the following.
- Provide enough space for ventilation.
- Do not install the terminal above large heat generating equipment (heaters, transformers, or large
capacity resistors).
- Do not install the terminal inside a panel, which has high-voltage equipment.
- Separate the terminal by 200 mm or more from a high-voltage lines and power lines.
(3) Handling precautions
- Construct an emergency stop circuit using an external relay. Do not use the LCD control terminal for
emergency switches. A malfunction may occur.
- Do not hit, bang or drop the terminal. It may malfunction.
- The surface of the display is easily scratched. Do not operate it using a sharp or pointed object (such as
ballpoint pen) or allow it to be scratched. It may malfunction.
- Tighten the mounting brackets and terminal screws on the terminal using the following torques.
- Lock the connectors on each cable securely. Check that all cables are locked before supplying power.
- In dry locations, large static electricity charges may build up. Before touching the LCD control terminal,
make sure to touch a grounded metal object to discharge any static electricity on your body.
- When cleaning, use a soft, dry cloth. Do not use any volatile liquids, such as alcohol or paint thinner, or
wet cloths. Deformation or color changes may occur.
(4) Wiring
1. Wiring power lines
- Use the terminal within the allowable power voltage fluctuation range.
- Use low noise power supply for lines and ground.
- Separate much 100 VAC and 24 VDC line from high-voltage and large current cables.
2. Provide a ground exclusive for the terminal.
Common use of the ground with other equipment or connect the ground to a building beam may affect
the LCD control terminal.
3. Do not lay communication cables together with high power circuit.
- Do not run power lines and communications circuits in the same duct. Do not bundle different types of
cables with cable ties. The terminal's noise immunity may deteriorate.
Screw positions
Control terminal housing
mounting screws
Terminal screws
Series name Screw size
Tightening
torque (N-m)
Screw size
Tightening
torque (N-m)
ZM-42/43/52 M3 0.29 to 0.49
M3.5 0.49
ZM-72/82 M4 0.49 to 0.69
Wiring duct
Power lines, control lines
Communication cable
Communication cable
Power lines, control lines
Cable tie