36
Chapter 2
Agilent 4072/4073 Preinstallation Guide, Edition 4
Site Preparation
Emergency Off (EMO) System
Block diagram and operation of emergency off circuit
Figure 2-18, Figure 2-19, and Figure 2-20 are emergency off circuit block diagrams. If your system has the
200 V
AC
power line option, the main circuit breaker that is included in disconnect device also has a ground-fault
circuit interrupter (GFCI) function, which senses the earth leakage current. If your system has the 200/208 V
AC
power option, DVM and CMU power outlets are furnished.
The Ext control terminals are closed using a conductor installed at the factory.
Figure 2-18
Block diagram of emergency off circuit (200 V option)
relay1
instrument
power outlets
200 V
EMO protector
neutral
main contactor
ext.alarm 1:[NC]
ext. cntrl
ext.alarm 2:[NO]
cabinet fan (3ea)
+5 V
testhead fan
relay5
fan protector
relay3
relay2
system
switch
relay6
EMO panel
EMO SW
LINE OFF SW
ON SW
INSTRUMENT POWER
white
green
emergency breaker
line
earth
(green)
relay7
relay8
200 V
disconnect
device
power outlet
protector
trans.
for 200 V
power outlet
protector
power outlet
protector
DVM and CMU
power outlets
220 V
controller
power outlets
220 V
M
TH PS
+
relay4
trans.
ac 24 V
EMO detect
OVT detect
+
-
10 A
10 A
2 A x 2ea
3 A
start MASK
~20 sec
fan speed sensor
fan speed sensor
(includes main breaker)
Содержание 4072A Advanced
Страница 5: ...5 Agilent 4072 4073 Preinstallation Guide Edition 4 1 General Information ...
Страница 10: ...10 Chapter 1 Agilent 4072 4073 Preinstallation Guide Edition 4 General Information Installation Overview ...
Страница 11: ...11 Agilent 4072 4073 Preinstallation Guide Edition 4 2 Site Preparation ...
Страница 42: ...42 Chapter 2 Agilent 4072 4073 Preinstallation Guide Edition 4 Site Preparation Site Preparation Checklist ...
Страница 43: ...43 Agilent 4072 4073 Preinstallation Guide Edition 4 3 Wafer Probers and Connection with Testhead ...
Страница 57: ...57 Agilent 4072 4073 Preinstallation Guide Edition 4 4 Receiving ...
Страница 71: ...71 Agilent 4072 4073 Preinstallation Guide Edition 4 A Confirming the System Power Safety ...
Страница 83: ......