Operating instructions

Operation SW 5250A•SW 3500A•SW 1750A
3-22 Operation Manual
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The INSTR menu allows you to:
• Set the output range (156 or 312 volts).
• Select either AC or AC+DC coupling.
• Select current limit mode, either shutdown, foldback or time-out mode
(foldback for the time specified in the ITIMO field then shutdown mode).
Foldback mode is unavailable while SYSTEM/EXTERNAL/ LOW FREQ is on.
• Select the time for the time-out mode.
• Select the peak overvoltage limit.
• Select amplifier parallel operation. When the Parallel mode is ON, only Phase A
will appear in the Program menu. Rear panel output power wiring must match
the Parallel mode selection.
>Parallel mode must match the rear panel
output wiring before programming output amplitude.
PROGRAM
MEASURE
WAVEFORM
SEQUENCE
INSTR
SYSTEM
RANGE
COUPLING
I MODE
I TIMO
V_LIM
PARALLEL
MAIN MENU OUTPUT [OFF]

INSTR Menu Status and Information Data:
Menu Item Status and Information Line Range
RANGE [156V or 312V range] 156V / 312V
COUPLING [AC or AC+DC coupling] AC / AC+DC
I MODE [supervisory current mode] Shutdown / Foldback / Time-Out
I TIMO [current limit time-out] 100–9999 ms
V_LIM [peak voltage limit] 20–255 Vpk/ 40–510 Vpk
PARALLEL [parallel output amplifiers] On / Off