
Chapter
5
Maintenance
5-52
Confidential
Copying Prohibited
5.9.5.1
Checking the earth leakage current (current that flows to protective earth resistance)
(1) Measurement wiring diagram
(2) Earth leakage current measurement points
Measurement point A
Earth wire of power supply cord from unit
Measurement point B
Earth terminal of power outlet
Place the MD in between measurement point A and B.
(3) Earth leakage current measurement conditions
It is necessary to measure the earth leakage current under two conditions: normal condition
and single fault condition.
(4) How to reproduce a single fault condition
To reproduce a single fault condition, insert one of the two inserts of the conversion plug by
cutting the other insert.
How to change the phase
You can switch the phase by inserting the conversion plug into the power outlet upside
down.
(5) Acceptance standards
Check that the maximum current value meets the following judgment criteria.
Normal condition
0.5 mA or less
Single fault condition
1.0 mA or less
VS-1500
Содержание VaSera VS-1500
Страница 12: ...Confidential Copying Prohibited x ...
Страница 18: ...0 Chapter 1 Features 1 6 Confidential Copying Prohibited ...
Страница 32: ...Chapter 4 Names of Parts of Equipment 4 6 Confidential Copying Prohibited ...
Страница 42: ...Chapter 5 Maintenance 5 10 Confidential Copying Prohibited Diagonal Line Stripe ...
Страница 178: ...Chapter 10 Part Location Diagram and Checkpoints Confidential Copying Prohibited 10 3 ...
Страница 180: ...Chapter 10 Part Location Diagram and Checkpoints Confidential Copying Prohibited 10 5 ...
Страница 191: ...Chapter 10 Part Location Diagram and Checkpoints 10 16 Confidential Copying Prohibited ...
Страница 207: ...Chapter 11 Spare Parts List 11 16 Confidential Copying Prohibited ...
Страница 213: ...Chapter 12 Information of the electromagnetic compatibility EMC 12 6 Confidential Copying Prohibited ...
Страница 216: ...39 4 Hongo 3 chome Bunkyo ku Tokyo Japan Phone 81 3 3815 2121 Fax 81 3 3814 1222 4R0100090 200906 ...