Operator's Manual
Issue 14
/
Mar 2016 / UMC0071
Mercury
iPS
©2016 Oxford Instruments NanoScience. All rights reserved.
Page
123
10.4.3 Legacy control commands
10.4.3.1 An command - Activity
The ACTIVITY command sets control of the magnet output to either HOLD, To SET, To ZERO
or CLAMPED (note: the output will only be clamped if the output current is less than 1A).
Allowed values are:
n=0
Hold
n=1
To Set
n=2
To Zero
n=4
Clamped (will only clamp the psu if the output is <1A)
10.4.3.2 Hn command - Set Switch Heater State
The Set Switch Heater command turns on/off the switch heater.
H0
Turns the switch heater OFF.
H1
Turns the switch heater ON if the difference between the magnet current and
power supply output current is < 0.1A.
H2
CAUTION!!
Turns the switch heater ON without making any checks of the
magnet current and psu current.
10.4.3.3 Innnn command - Set Target Current (A)
The Set Target Current command format can have up to 3 digits before the decimal point (e.g.
Innn.nnnn) and has 4 digits of precision after the decimal point.
10.4.3.4 Jnnnn command - Set Target Field (T)
The Set Target Field command format can have up to 2 digits before the decimal point (e.g.
Jnn.nnnnn) and has 5 digits of precision after the decimal point.
10.4.3.5 Snnnn command - Set Target Current Ramp Rate (A/min)
The Set Target Current Ramp Rate command format can have up to 3 digits before the decimal
point (e.g. Snnn.nnnn) and has 4 digits of precision after the decimal point.
