3-11
3.2.2 Grounding
Be sure to ground when the influence of noise is great
The unit is tolerant against noise in normal environments, but if the environment is particularly
susceptible to noise, please ground.
Use dedicated grounding
Make the grounding point as close as possible to the GT and keep the distance of the grounding wire
short.
Sharing the ground with another device may have an adverse effect. Therefore, be sure that grounding
is dedicated.
Note:
Conversely, depending on your environment, grounding may cause a problem.
Example:
Since the power line of the GT unit is connected to a functional earth via electronic parts, the electronic
parts may become damaged if there is an abnormal potential between the power line and the physical
ground.
Do not ground the function earth when grounding a plus (+) terminal of the power. (GT01, GT11,
GT21)
In some computers, the SG terminal of RS232C port and connector shielding are connected. Also the
tool port shielding is connected with the function earth terminal. Therefore, the GND terminal and the
function earth terminal are connected if the computer is connected. Especially when the GT is connected
to a computer with a plus (+) terminal grounded, therefore, an GT
’s minus (-) terminal is connected with
the function earth terminal. As a result, short circuit occurs which may lead to the breakage of GT and its
neighboring parts.
Summary of Contents for GT01
Page 25: ...Chapter 1 Features and Functions ...
Page 40: ...1 16 ...
Page 41: ...Chapter 2 Names and Functions of Parts ...
Page 42: ...2 2 2 1 Part Names 2 1 1 GT01 GT11 GT21 GT01 GT01R GT11 GT21 ...
Page 44: ...2 4 2 1 2 GT02 GT02L GT02M2 GT02G2 GT02M0 GT02M1 GT02G0 GT02G1 GT02L ...
Page 48: ...2 8 2 1 4 GT05 GT12 GT32 GT32 R GT32 E GT05 GT12 GT32 Standard High function ...
Page 49: ...2 9 GT32 R GT32 E ...
Page 62: ...2 22 ...
Page 63: ...Chapter 3 Installation and Wiring ...
Page 86: ...3 24 ...
Page 87: ...Chapter 4 Connecting with PLC ...
Page 122: ...4 36 ...
Page 123: ...Chapter 5 Troubleshooting ...
Page 141: ...Chapter 6 Specifications ...
Page 187: ...Chapter 7 Dimensions and Other Documentation ...
Page 188: ...7 2 7 1 Dimensions 7 1 1 GT01 GT01R Installation dimensions Panel cutout dimensions ...
Page 189: ...7 3 7 1 2 GT02 Installation dimensions Panel cutout dimensions ...
Page 190: ...7 4 7 1 3 GT02L Installation dimensions Panel cutout dimensions ...
Page 191: ...7 5 7 1 4 GT03M E Installation dimensions Panel cutout dimensions ...
Page 193: ...7 7 7 1 6 GT05 Installation dimensions Panel cutout dimensions ...
Page 194: ...7 8 7 1 7 GT11 Installation dimensions Panel cutout dimensions ...
Page 195: ...7 9 7 1 8 GT12 Installation dimensions Panel cutout dimensions ...
Page 196: ...7 10 7 1 9 GT21 Installation dimensions Panel cutout dimensions ...
Page 198: ...7 12 7 1 11 GT32 R GT32 E Installation dimensions Panel cutout dimensions ...
Page 200: ...7 14 7 2 4 AIGT8175 7 2 5 AIP81842 ...
Page 202: ...7 16 7 4 ASCII Code Table ...
Page 205: ......