Lake Shore Model 647 Magnet Power Supply User’s Manual
Options & Accessories
5-3
Rail Fault Detected
Excessive DC rail voltage (unable to return power to the
utility or some other internal fault), causes the MPS to
display:
I STEP Limit Exceeded
When the user attempts to change the current setting by
more than the step limit setting, the MPS displays:
5.2 FACTORY DEFAULT SETTINGS
Below is a list of factory-presets. To reinitialize the MPS to factory presets, hold
Esc
for about 15 seconds.
Normal Display Screen
I SET: +0.00A
– Current Setting
V SET: +1.00V
– Voltage Setting
Setup Screen
IEEE / SIO:
– IEEE/SIO Option Status (<NP> if not present)
CB DEF: 9600,0,7,1
– Control Bus Definition (9600 Baud, Odd Parity, 7 Data Bits, 1 Stop Bit)
CB ADD: 0
– Control Bus Address
VW ANGLE: 5
– Viewing Angle (5 = Straight On)
IMAX SET: + 72.00 A
– Maximum Current Setting in Amps
VMAX SET: + 30.00 V
– Maximum Voltage Setting in Volts
IEEE/SIO Setup Screen (If Present)
IEEE ADD: 12
– IEEE Address
TERMS: (CR LF)
– Terminators Status (Carriage Return & Line Feed)
EOI: <ON>
– EOI Status = On
BAUD: 1200
– Baud Rate for RS-232
DEF: 0,7,1
– SIO Definition (Odd Parity, 7 Data Bits, 1 Stop Bit)
Ramp Status Screen
SEGMENT: <OFF>
– Ramp Segment = Off
STATUS: HOLDING
– Ramp Status = Holding
FROM: + 0.00 A
– Ramp From (in Amps)
TO: + 0.00 A
– Ramp To (in Amps)
AT: + 0.00 A/Sec
– Ramp At (in Amps per Second)
Field Measurement Screens (If Present)
READING: <OFF>
– Reading Status = Off
UNITS: kG
– Field Units in Kilogauss
mV/kG: + 0.800
– Field Probe Sensitivity
ZERO RDG: <OFF>
– Field Probe Zerio and Status = Off
Output Current Zero Screen
STATUS: <OFF>
– Output Current Zero Status = Off
I ZERO: + 0.00 A
– Output Current Zero Value
I MODE: INTERNAL
– Output Current Programming Mode (Display Only)
Current Step Limit Screen
STATUS: <ON>
– Output Current Step Limit Status = On
I STEP: + 10.00 A
– Output Current Step Limit = +10.00 Amps
- 0 .0 0 A
+ 1 .0 0 V
R A IL L O C
T H E U N IT W IL L B E T U R N E D
O F F T O A V O ID D A M A G E .
D C R A IL V O L T A G E T O O H I.
O U T P U T :
*
IN T E R N A L
R A IL F A U L T :
I S T E P L IM IT E X C E E D E D :
O U T P U T C U R R E N T C H A N G E D
M O R E T H A N T H E I S T E P
L IM IT IN O N E U P D A T E .
T H E O U T P U T S E T T IN G S A R E
F O R C E D T O 0 A A N D 1 V .
P R E S S ¥ T O C L E A R E R R O R .
O U T P U T :
- 0 .0 0 A
+ 0 .0 0 V
S T P L O C
*
