Index – American Magnetics 420 Power Supply Programmer User Manual
Page 134
116
Index
P
persistent switch
beeps 59
current mismatches 61
entering persistent mode 60
exiting persistent mode 60
heater control 59
heating current 46, 59
heating time 46, 59
voltage 59
power-up test 33
programmed current 55
programmed field 55
Q
disabling 62
external in/out 62, 109
switch failure 62
R
ramping
basic relationships 52
direct current manipulation 56
examples 57
field display 54
manual mode 54
programmed mode 55
rate 54
states 52, 88
zero mode 56
ramping mode symbols 38
rear panel layout 5
remote interface reference 65
command conventions 65
command handshaking 74
command reference 79
quench control 89
ramping commands 85
ramping states 87
setup commands 82
status commands 80
switch heater control 88
system commands 79
trigger functions 90
command summary 65 - 69
error messages 92
overview 69
SCPI intro 69
serial polling 72
standard event register 73
status byte 71
status system 70
status system diagram 70
return authorization 104
RS-232/422 configuration 76
connector 76
flow control modes 77
termination characters 76
S
safety
cryogens xii
equipment xv
legend xv
quenches xiv
setup
comm submenu 49
example 50
load submenu 44
menu tree diagram 40
misc submenu 48
submenus 39
supply submenu 40
short-circuit operation 32
specifications 7
stability setting 98
supply submenu
max output voltage 42
max output current 43
min output current 42
min output voltage 42
select power supply 40
v-v mode range 43
T
test procedure 33
troubleshooting
cannot enter persistent mode 100
cannot exit persistent mode 101
charges slowly 98
communication failures 102
contacting AMI support 103
excessive LHe losses 102
no field display 102
no power 96
operating voltage 14
oscillation 97
quenches 101
replacing the battery 97
replacing the fuse 96
unidirectional current w/4Q supply 100
voltage limits 99
voltage selector 97
will not charge 98, 100
will not discharge 99, 101
V